diff options
Diffstat (limited to 'util')
88 files changed, 0 insertions, 40604 deletions
diff --git a/util/autoconf/.rconf b/util/autoconf/.rconf deleted file mode 100644 index 1753f83..0000000 --- a/util/autoconf/.rconf +++ /dev/null @@ -1 +0,0 @@ -copy configure diff --git a/util/autoconf/COPYING b/util/autoconf/COPYING deleted file mode 100644 index a43ea21..0000000 --- a/util/autoconf/COPYING +++ /dev/null @@ -1,339 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1989, 1991 Free Software Foundation, Inc. - 675 Mass Ave, Cambridge, MA 02139, USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. By contrast, the GNU General Public -License is intended to guarantee your freedom to share and change free -software--to make sure the software is free for all its users. This -General Public License applies to most of the Free Software -Foundation's software and to any other program whose authors commit to -using it. (Some other Free Software Foundation software is covered by -the GNU Library General Public License instead.) You can apply it to -your programs, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -this service if you wish), that you receive source code or can get it -if you want it, that you can change the software or use pieces of it -in new free programs; and that you know you can do these things. - - To protect your rights, we need to make restrictions that forbid -anyone to deny you these rights or to ask you to surrender the rights. -These restrictions translate to certain responsibilities for you if you -distribute copies of the software, or if you modify it. - - For example, if you distribute copies of such a program, whether -gratis or for a fee, you must give the recipients all the rights that -you have. You must make sure that they, too, receive or can get the -source code. And you must show them these terms so they know their -rights. - - We protect your rights with two steps: (1) copyright the software, and -(2) offer you this license which gives you legal permission to copy, -distribute and/or modify the software. - - Also, for each author's protection and ours, we want to make certain -that everyone understands that there is no warranty for this free -software. If the software is modified by someone else and passed on, we -want its recipients to know that what they have is not the original, so -that any problems introduced by others will not reflect on the original -authors' reputations. - - Finally, any free program is threatened constantly by software -patents. We wish to avoid the danger that redistributors of a free -program will individually obtain patent licenses, in effect making the -program proprietary. To prevent this, we have made it clear that any -patent must be licensed for everyone's free use or not licensed at all. - - The precise terms and conditions for copying, distribution and -modification follow. - - GNU GENERAL PUBLIC LICENSE - TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION - - 0. This License applies to any program or other work which contains -a notice placed by the copyright holder saying it may be distributed -under the terms of this General Public License. The "Program", below, -refers to any such program or work, and a "work based on the Program" -means either the Program or any derivative work under copyright law: -that is to say, a work containing the Program or a portion of it, -either verbatim or with modifications and/or translated into another -language. (Hereinafter, translation is included without limitation in -the term "modification".) Each licensee is addressed as "you". - -Activities other than copying, distribution and modification are not -covered by this License; they are outside its scope. The act of -running the Program is not restricted, and the output from the Program -is covered only if its contents constitute a work based on the -Program (independent of having been made by running the Program). -Whether that is true depends on what the Program does. - - 1. You may copy and distribute verbatim copies of the Program's -source code as you receive it, in any medium, provided that you -conspicuously and appropriately publish on each copy an appropriate -copyright notice and disclaimer of warranty; keep intact all the -notices that refer to this License and to the absence of any warranty; -and give any other recipients of the Program a copy of this License -along with the Program. - -You may charge a fee for the physical act of transferring a copy, and -you may at your option offer warranty protection in exchange for a fee. - - 2. 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For software which is copyrighted by the Free -Software Foundation, write to the Free Software Foundation; we sometimes -make exceptions for this. Our decision will be guided by the two goals -of preserving the free status of all derivatives of our free software and -of promoting the sharing and reuse of software generally. - - NO WARRANTY - - 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY -FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN -OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES -PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED -OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS -TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE -PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, -REPAIR OR CORRECTION. - - 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR -REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, -INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING -OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED -TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY -YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER -PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE -POSSIBILITY OF SUCH DAMAGES. - - END OF TERMS AND CONDITIONS - - Appendix: How to Apply These Terms to Your New Programs - - If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these terms. - - To do so, attach the following notices to the program. It is safest -to attach them to the start of each source file to most effectively -convey the exclusion of warranty; and each file should have at least -the "copyright" line and a pointer to where the full notice is found. - - <one line to give the program's name and a brief idea of what it does.> - Copyright (C) 19yy <name of author> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -Also add information on how to contact you by electronic and paper mail. - -If the program is interactive, make it output a short notice like this -when it starts in an interactive mode: - - Gnomovision version 69, Copyright (C) 19yy name of author - Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, the commands you use may -be called something other than `show w' and `show c'; they could even be -mouse-clicks or menu items--whatever suits your program. - -You should also get your employer (if you work as a programmer) or your -school, if any, to sign a "copyright disclaimer" for the program, if -necessary. Here is a sample; alter the names: - - Yoyodyne, Inc., hereby disclaims all copyright interest in the program - `Gnomovision' (which makes passes at compilers) written by James Hacker. - - <signature of Ty Coon>, 1 April 1989 - Ty Coon, President of Vice - -This General Public License does not permit incorporating your program into -proprietary programs. If your program is a subroutine library, you may -consider it more useful to permit linking proprietary applications with the -library. If this is what you want to do, use the GNU Library General -Public License instead of this License. diff --git a/util/autoconf/ChangeLog b/util/autoconf/ChangeLog deleted file mode 100644 index 9885bdc..0000000 --- a/util/autoconf/ChangeLog +++ /dev/null @@ -1,1196 +0,0 @@ -Mon Dec 19 19:20:58 1994 Theodore Y. Ts'o (tytso at tsx-11) - - * acgeneral.m4 (AC_DEFINE_UNQUOTED): Workaround more Ultrix sh - brain damage. - - * acgeneral.m4 (AC_CACHE_SAVE): Work around yet another really - horrible Ultrix sh bug. The values of variables read in - using the ${var='bar'} construction are displayed using - the "set" command with the high bit set. (Someone should - just haul off the Ultrix sh and have it shot). Fixed - using tr. - -Fri Nov 4 09:08:33 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * Version 2.1. - - * autoreconf.sh: Add -f --force option. - From "Theodore Ts'o" <tytso@MIT.EDU>. - -Thu Nov 3 10:24:08 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_TRY_RUN): Reword warning. - - * acspecific.m4 (AC_PROG_CXX): Notify the user of the check for - GNU C++. - (AC_PROG_CXX, AC_PROG_CXXCPP): Use g++, not gcc, as default C++ - compiler. - * acgeneral.m4 (AC_LANG_CPLUSPLUS): Ditto. - - * acgeneral.m4 (AC_INIT_PARSE_ARGS): Move ac_usage string directly - into the here document to work around A/UX shell limitation. - - * acgeneral.m4 (AC_COMPILE_CHECK): Mention the MSG macros in the - obsolete warning. - - * autoscan.pl (output_programs): Use AC_CHECK_LIB, not - AC_HAVE_LIBRARY. - - * acgeneral.m4 (AC_CHECK_FUNC): Move prototype outside of function - so it works with C++. From ejb@era.COM (E. Jay Berkenbilt). - -Fri Oct 28 11:23:30 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * acspecific.m4 (AC_CHECK_HEADERS_DIRENT): Use define, not - AC_DEFUN, so the testsuite doesn't call it with no arguments, - leading to a syntax error in the real Bourne shell. - -Wed Oct 26 18:40:41 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * Version 2.0. - -Tue Oct 25 11:04:16 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_CHECK_HEADER, AC_CHECK_HEADERS): Change - - in file names to _. - * acspecific.m4 (AC_CHECK_HEADER_DIRENT, AC_CHECK_HEADERS_DIRENT): - Likewise. - -Mon Oct 24 11:28:20 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * Makefile.in (uninstall): Remove the transformed names. - (SCRIPTS): Rename from PROGS. - * configure.in: Likewise. - -Fri Oct 21 07:14:23 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_TRY_COMPILE): New macro. - (AC_LANG_C, AC_LANG_CPLUSPLUS): Set $ac_compile. - (AC_TRY_LINK): Don't declare exit. - * acspecific.m4 (AC_C_INLINE, AC_C_CONST, AC_CHECK_HEADER_DIRENT, - AC_DECL_SYS_SIGLIST, AC_HEADER_SYS_WAIT, AC_TYPE_SIGNAL, - AC_FUNC_GETLOADAVG, AC_HEADER_TIME, AC_STRUCT_TM, - AC_STRUCT_TIMEZONE, AC_STRUCT_ST_BLOCKS, AC_STRUCT_ST_BLKSIZE, - AC_STRUCT_ST_RDEV): Use AC_TRY_COMPILE instead of AC_TRY_LINK. - (AC_AIX, AC_MINIX, AC_ISC_POSIX): Must come before AC_TRY_COMPILE. - - * acspecific.m4 (AC_PROG_LEX): Don't assume -ll if using lex; - check for it. From Mark Eichin. - -Thu Oct 20 07:11:22 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_PARSE_ARGS): Ignore --site. - - * autoscan.pl: Add more blank lines to the output. Pacify perl -w. - -Wed Oct 19 09:14:50 1994 David J. MacKenzie (djm@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREREQ_COMPARE): Allow secondary and ternary - numbers >99. From John Eaton <jwe@che.utexas.edu>. - -Wed Oct 19 00:06:40 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * ifnames.sh: Take comments out of sed script. - -Tue Oct 18 00:20:04 1994 David J. MacKenzie <djm@duality.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_INIT_NOTICE): Set ac_default_prefix. - (AC_INIT_PARSE_ARGS, AC_SITE_LOAD, AC_OUTPUT): Use it. - (AC_PREFIX_DEFAULT): New macro. - From Ken Raeburn. - - * testsuite/autoconf.s/syntax.exp: Renamed from specific.exp. - - * acgeneral.m4 (AC_SITE_LOAD): Change where to look for config.site. - - * configure.in: Call AC_ARG_PROGRAM. - * Makefile.in (install): Use program_transform_name. - - * acgeneral.m4 acspecific.m4 acoldnames.m4: Clarify copying terms. - - * acgeneral.m4 (AC_CANONICAL_BUILD): Default build to host, not empty. - - * acspecific.m4 (AC_PROG_CC): Recognize NeXT cpp as GNU C. - From tom@basil.icce.rug.NL (Tom R.Hageman). - -Mon Oct 17 18:25:53 1994 David J. MacKenzie (djm@duality.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_CPP): Use assert.h (comes with gcc), not - stdio.h (loses for new cross-compilers). From Roland McGrath. - -Tue Oct 11 13:22:22 1994 David J. MacKenzie (djm@duality.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PATH_XTRA): Add X_PRE_LIBS variable and assume - -lSM if -lICE is found. From Karl Berry. - -Mon Oct 3 20:12:36 1994 David J. MacKenzie (djm@duality.gnu.ai.mit.edu) - - * testsuite/Makefile.in (AUTOCONF, AUTOCONFFLAGS): Test - ../autoconf, not installed autoconf. - -Sat Oct 1 04:43:43 1994 Paul Eggert <eggert@twinsun.com> - - * acspecific.m4: Catch `const' bug in NEC SVR4.0.2 mips cc. - - * Makefile.in (.sh, .pl, configure): Do chmod before mv. - - * acheaders, acspecific.m4 (AC_HEADER_SYS_WAIT): New entry. - - * acconfig.h (HAVE_SYS_WAIT_H): New entry. - -Wed Sep 28 08:59:01 1994 David MacKenzie <djm@geech.gnu.ai.mit.edu> - - * Makefile.in: Set datadir to $(prefix)/share. - -Tue Sep 27 08:00:38 1994 David MacKenzie <djm@geech.gnu.ai.mit.edu> - - * Makefile.in: Use implicit rules to make scripts. - From Jim Meyering. - - * acconfig.h: Remove #undefs of unused symbols. - From Paul Eggert. - * testsuite/autoconf.s/defines.exp: New file. - * testsuite/autoconf.s/specific.exp: Extract the list of macros to - test from acspecific.m4 instead of hardcoding it. - * acspecific.m4 (AC_PROG_CXXCPP): Default CXX to gcc, not c++. - -Mon Sep 26 12:32:46 1994 David MacKenzie <djm@churchy.gnu.ai.mit.edu> - - * acspecific.m4 (AC_HEADER_DIRENT): Only check for -lx if not - using dirent. - * autoreconf.sh: Shorten sed label for OSF/1. - * acgeneral.m4 acspecific.m4: Change licensing terms for output. - -Thu Sep 22 15:36:56 1994 David MacKenzie <djm@churchy.gnu.ai.mit.edu> - - * autoconf.sh (tmpin): Always set. - -Wed Sep 21 13:12:10 1994 David MacKenzie <djm@geech.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_INIT_PREPARE): Remove trailing slashes from - srcdir. - -Mon Sep 19 17:11:39 1994 David MacKenzie <djm@geech.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_INIT, AC_INIT_PARSE_ARGS, AC_CANONICAL_SYSTEM, - AC_ARG_PROGRAM): Make the default for program_transform_name be - a valid sed script, and substitute it always. - -Sat Sep 17 08:27:58 1994 David MacKenzie <djm@geech.gnu.ai.mit.edu> - - * autoheader.sh: Protect `for' loop from checking empty $syms. - - * ifnames.sh: Use % instead of , as sed s separator. - - * autoscan.pl: Update output comments. - -Fri Sep 16 11:20:02 1994 David MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_TYPE_GETGROUPS): Provide a cross compiling - default. From Jim Meyering. - - * acgeneral.m4 (AC_INIT_PARSE_ARGS): Document - --program-transform-name. - -Thu Sep 15 16:26:36 1994 David MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_INIT_NOTICE): Clarify copying notice. - Fix up comments between sections. - - * acspecific.m4 (AC_PROG_LEX): Omit extra checking message. - - * autoreconf.sh: Give usage if non-option args are given. - * autoconf.sh autoheader.sh: Define AC_LOCALDIR for configure.in. - -Thu Sep 15 11:31:13 1994 Ian Lance Taylor (ian@airs.com) - - * Makefile.in (check): Set AUTOCONFFLAGS from srcdir, not objdir. - -Thu Sep 15 09:06:40 1994 David MacKenzie (djm@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_MSG_ERROR): Say that it's an error in the message. - - * Makefile.in (check): Copy install-sh from srcdir if needed. - - * autoreconf.sh: Only regenerate autoheader-generated header file - templates. Pass relative macrodir properly. - * autoconf.sh autoheader.sh autoreconf.sh: Add -l --localdir option. - Based on work by Mark Eichin. - - * ifnames.sh: Add -h option. - * autoconf.sh autoheader.sh: Remove -v option. - - * acgeneral.m4 (AC_CHECK_TYPE): Require AC_HEADER_STDC and check - stdlib.h if present. - - * acgeneral.m4 (AC_OUTPUT): Protect cache save from interruptions. - -Tue Sep 13 09:46:23 1994 David J. MacKenzie (djm@churchy.gnu.ai.mit.edu) - - * Makefile.in (install): Use srcdir. From Mark Eichin. - - * acgeneral.m4 (AC_OUTPUT_FILES): Automatically add - configure_input comment to Makefiles again. - * Makefile.in testsuite/Makefile.in: Remove configure_input ref. - - * acgeneral.m4 (AC_LINK_FILES, AC_OUTPUT_LINKS): Reverse the order - of the arguments. Support relative symlinks. - - * acgeneral.m4 acspecific.m4: Remove some gratuitous {} in shell - variable references. - - * acgeneral.m4 (AC_OUTPUT_FILES): New output variable - configure_input replaces big kludge for adding output comment. - * Makefile.in, testsuite/Makefile.in: Use it. - -Mon Sep 12 23:06:08 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_INIT_PREPARE, AC_OUTPUT_SUBDIRS): Make command - line quoting work for shell metachars besides blanks. - -Sun Sep 11 23:34:24 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PATH_XTRA): Link with X_EXTRA_LIBS when - checking for -lSM. - - * acfunctions (memcmp): Use AC_FUNC_MEMCMP. From Paul Eggert. - - * acgeneral.m4 (AC_COMPILE_CHECK): Mark obsolete. - -Sat Sep 10 10:59:19 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * Makefile.in (DISTFILES): Include install-sh, not install.sh. - - * autoscan.pl: Check AC_MACRODIR. - - * acgeneral.m4 (AC_INIT_PARSE_ARGS, AC_INIT_PREPARE, - AC_CONFIG_SUBDIRS, AC_OUTPUT_SUBDIRS): Make quoting of command - line options work. - (AC_CONFIG_AUX_DIRS): Check for install-sh over install.sh. - - * acspecific.m4 (AC_FUNC_GETMNTENT): Only check for second lib if - first lib isn't found. From Jim Meyering. - -Fri Sep 9 10:41:42 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FUNC_MEMCMP): New macro, from Jim Meyering. - * testsuite/autoconf.s/specific.exp: Test it. - - * testsuite/Makefile.in (site.exp): Simplify. - - * acgeneral.m4 (AC_CACHE_SAVE): Use a shorter syntax for setting - the variables. Idea from Karl Berry. - (AC_CHECK_FUNCS, AC_CHECK_HEADERS): Take an action-if-not-found. - From Jim Meyering. - - * acconfig.h: Add entries for getmntent and strftime. - * acspecific.m4 (AC_C_CHAR_UNSIGNED): If GCC, don't run a test - program. - -Thu Sep 8 10:53:53 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_USG): Was passing too many args to AC_TRY_LINK. - (AC_FUNC_STRFTIME, AC_FUNC_GETMNTENT): New macros. - (AC_HEADER_DIRENT): Check for Xenix dir libs. - (AC_XENIX_DIR, AC_SCO_INTL, AC_IRIX_SUN, AC_DYNIX_SEQ, AC_AIX, - AC_ISC_POSIX, AC_MINIX): Go back to the v1 names. - * acoldnames.m4: Delete their aliases. - * testsuite/autoconf.s/specific.exp: Check them. - - * acgeneral.m4 (AC_ARG_PROGRAM): Use `;' instead of `-e' to - separate sed arguments, to simplify Makefile usage and support - sed arguments containing spaces. - (AC_CANONICAL_HOST): Move check for config.sub here from - AC_CANONICAL_SYSTEM. - - * autoheader.m4 (AC_CHECK_HEADERS_DIRENT): Redefine. From Paul Eggert. - (AC_CHECK_SIZEOF): Redefine this, not the old name. - (AC_HAVE_LIBRARY): Redefine. - -Wed Sep 7 09:32:31 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * testsuite/lib/common.exp: Ignore warnings about test programs. - * testsuite/autoconf.s/specific.exp: Check AC_FUNC_CLOSEDIR_VOID. - - * Makefile.in (*clean): Remove the new index. - (dist): Undo adding write perms. Screws up RCS. - * acgeneral.m4 (AC_OUTPUT_MAKE_DEFS): Remove comments from sed - program. - * acoldnames.m4: Change a couple of AC_DEFUN to define. - -Wed Sep 7 01:27:19 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_SITE_LOAD): Check whether $CONFIG_SITE is empty. - -Tue Sep 6 09:55:30 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_ARG_PROGRAM): New macro. - (AC_INIT_PARSE_ARGS, AC_CANONICAL_SYSTEM): Do a little setup for it. - - * acspecific.m4 (AC_PROG_INSTALL): Clarify comment. Remove check - for bsdinst, since it's no better than our install.sh. - (AC_CHECK_HEADER_DIRENT, AC_CHECK_HEADERS_DIRENT): New macros. - (AC_HEADER_DIRENT, AC_DIR_HEADER): Use them. - (AC_PROG_CC, AC_PROG_CXX): Check whether GCC accepts -g. - - * acgeneral.m4 (AC_INIT_PREPARE): Call AC_PROG_ECHO_N. - Use define instead of AC_DEFUN for some frequently called or - internal macros that aren't involved in ordering constraints. - -Mon Sep 5 17:37:36 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_C_CROSS): Provide default argument to AC_TRY_RUN. - -Fri Sep 2 09:30:41 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_TRY_CPP): Use a temp file so sh -x works. - From Mark Nudelman. - - * acgeneral.m4: --norecursion -> --no-recursion. - (AC_OUTPUT_LINKS): Reset srcdir to ac_given_srcdir. - - * acspecific.m4 (AC_PATH_X): Call AC_ARG_WITH(x, ...). - (AC_PROG_INSTALL): Search for bsdinst too. - - * Makefile.in (dist): Make distribution files writable. - - * acgeneral.m4 (AC_OUTPUT): Move trap 0 commands to near the end - of configure, to work around shell bug in failing to execute the - trap when there are commands after AC_OUTPUT. - -Sat Sep 3 19:47:06 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu> - - * acgeneral.m4 (AC_OUTPUT_FILES): Write CONFIG_FILES defn - unquoted, so $1 can contain references to shell variables in configure. - -Thu Sep 1 15:34:15 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_TRY_RUN): Always warn if no cross-compile - default is given. - * acspecific.m4 (AC_FUNC_MMAP, AC_FUNC_VFORK, AC_FUNC_WAIT3, - AC_FUNC_UTIME_NULL, AC_FUNC_STRCOLL): Provide a default - for AC_TRY_RUN. - (AC_FUNC_CLOSEDIR_VOID): New macro, broken out of AC_HEADER_DIRENT. - -Thu Sep 1 00:06:38 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 acspecific.m4: Discard all output until AC_INIT is - called. Remove now-unnecessary dnl's between macro definitions. - (AC_OUTPUT): Add exit 0 and optional unquoted here document to - end of config.status. - -Wed Aug 31 00:11:28 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acspecific.m4 (AC_PATH_X_DIRECT): Use AC_TRY_LINK instead of - AC_CHECK_LIB, so we don't add the library to $LIBS or print anything. - (AC_PATH_XTRA): Remove initial checking message. - (AC_HEADER_STDC): In test program, default to no STDC headers if - cross compiling. - -Tue Aug 30 16:16:29 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * autoreconf.sh: Add -h option. - * autoupdate.sh: Remove -v option. - - * acgeneral.m4 (AC_EGREP_CPP, AC_TRY_CPP): Add parens around eval - for old shells. From Kaveh Ghazi. - (AC_TRY_RUN): Warn when generating configure, if called without - a default parameter and AC_CANONICAL_SYSTEM has been called. - - * autoheader.sh: Don't run `for' loops on empty lists. - From Ken Raeburn. - - * autoconf.sh autoheader.sh: Print the version number using grep - like the other scripts, not using m4. - * acgeneral.m4: Remove conditional for printing version number. - It broke with frozen files. - - * autoheader.m4: New file. - * autoheader.sh: Use it; the frozen version if possible. - * Makefile.in (install): Install a frozen autoheader.m4f if possible. - * autoconf.m4: Don't sinclude acsite.m4 here. - * acgeneral.m4 (AC_INIT): Include it here. - -Tue Aug 30 14:02:07 1994 David J. MacKenzie (djm@mole.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_CHECK_LIB): Use AC_DEFINE_UNQUOTED. - From Jim Meyering. - - * acgeneral.m4: Revise diversions, to topologically order - macros called via AC_REQUIRE. - (AC_DIVERT_PUSH, AC_DIVERT_POP): New macros. - (AC_INIT, AC_ARG_ENABLE, AC_ARG_WITH, AC_SUBST, AC_SUBST_FILE, - AC_REQUIRE): Use them. - From Franc,ois Pinard (bless his soul!). - (AC_PRO, AC_EPI): New macros. - (AC_DEFUN): Use them. - (AC_INIT): sinclude aclocal.m4 herea. - * autoconf.m4: Not here. - - * autoconf.sh: Use a freeze file if available and m4 can do it. - * Makefile.in (install): Install a freeze file if m4 supports it. - -Mon Aug 29 16:18:22 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_TRY_CPP): Remove subshell and move quotes. - -Sun Aug 28 17:37:26 1994 David J. MacKenzie (djm@bennett.eng.umd.edu) - - * acspecific.m4 (AC_C_CHAR_UNSIGNED, AC_C_LONG_DOUBLE, - AC_C_INLINE): Don't AC_REQUIRE AC_PROG_CC. - - * acspecific.m4 (AC_RSH, AC_ARG_ARRAY, AC_HAVE_POUNDBANG): Define - to print error messages. - - * acgeneral.m4 (AC_OUTPUT_LINKS): Insert ac_links and ac_files - into config.status using an *un*quoted here document. - From Ken Raeburn. - -Sat Aug 27 13:31:58 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT_HEADER): Remove comments from within sed - script. From Kaveh Ghazi <ghazi@wilhelm.rutgers.edu>. - -Fri Aug 26 17:03:18 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * autoconf.sh, acgeneral.m4: __LINE__ -> __oline__. - - * acgeneral.m4 (AC_TRY_CPP, AC_EGREP_CPP): Append any error output - to config.log. - (AC_EGREP_CPP): Don't use a temp file. - - * acspecific.m4 (AC_FUNC_ALLOCA): Require CPP. - - * acgeneral.m4 (AC_INIT_PREPARE): Replace AC_SUBST_DEFAULT calls - with AC_SUBST. - (AC_SUBST_DEFAULT): Macro removed. - * acspecific.m4 (AC_PROG_CC, AC_PROG_CXX): If CFLAGS or CXXFLAGS - was not set already, give it a default value according to whether - we have gcc. - - * acspecific.m4 (AC_PATH_XTRA): Use AC_CHECK_LIB, not AC_HAVE_LIBRARY. - -Fri Aug 26 00:34:11 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acconfig.h (HAVE_UNION_WAIT): Entry removed; it wasn't defined - anywhere. - - * acgeneral.m4 (AC_OUTPUT_HEADER): rm files before mv onto them. - (AC_OUTPUT): Remove explicit exit at end of configure, to allow - code after AC_OUTPUT (needed for Emacs). - - * acgeneral.m4 (AC_CANONICAL_SYSTEM): Move setting of alias vars - into submacros. - - * acspecific.m4 (AC_PROG_CPP): If $CPP is set and is a directory, - ignore it. - -Thu Aug 25 09:26:36 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acspecific.m4 (AC_SYS_INTERPRETER): Move hash mark out of macro - call. - (AC_FUNC_MMAP): If C++, put malloc decls in extern "C". - - * acgeneral.m4 (AC_INIT_PARSE_ARGS): Untabify help message - and indent options. - - * Makefile.in (DISTFILES): Remove ChangeLog.0. - - * acgeneral.m4 (AC_CHECK_LIB): Do uppercasing of library name at - runtime. - (AC_HAVE_LIBRARY): Retain old behavior. - - * acspecific.m4 (AC_FUNC_VFORK): If C++, use a prototype for the - function in the test program. - (AC_C_ARG_ARRAY): Macro deleted. - * acoldnames.m4, acconfig.h, testsuite/autoconf.s/specific.exp: - Remove references to it. - - * autoupdate.sh: Make sure $infile can be read, and $tmpout has - the same permissions. Make sure $infile can be written. From - Paul Eggert. - - * acgeneral.m4 (AC_INIT*): Remove now-incorrect AC_BEFORE calls. - (AC_CHECK_FUNC): If C++, use extern "C". - (AC_TRY_LINK, AC_TRY_RUN): If C++, declare exit. - - * acspecific.m4 (AC_PATH_XTRA): Check for more libraries. - From Karl Berry. - - * acgeneral.m4 (AC_INIT_PREPARE): Substitute CPPFLAGS. - (AC_LANG_C, AC_LANG_CPLUSPLUS): Include CPPFLAGS in the commands. - - * acgeneral.m4 (AC_OUTPUT_FILES): Move protection for right side - of sed substitution here from AC_MAKE_DEFS, so it applies to all - AC_SUBST'd variables. - - * Makefile.in (install): Use for loops. From Jim Meyering. - - * acgeneral.m4: Revise diversions to rely on implicit flushing at - the end of the m4 run. Idea from Franc,ois Pinard. - (AC_INIT_PREPARE, AC_ARG_ENABLE, AC_ARG_WITH, AC_PREFIX_PROGRAM): - Write to the appropriate diversions. - (AC_ENABLE, AC_WITH): Supply default help string. - (AC_ENABLE_INTERNAL, AC_WITH_INTERNAL, AC_PREFIX_INTERNAL): - Macros removed. - (AC_CONFIG_SUBDIRS): Set `subdirs' here instead of in - AC_INIT_PREPARE. - (AC_PREFIX): Macro removed. - * acoldnames.m4 (AC_PREFIX): Make it an alias for AC_PREFIX_PROGRAM. - - * acoldnames.m4: We don't officially support calling - the subroutines of AC_INIT directly, or replacing them, so don't - document it. - -Wed Aug 24 00:19:05 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 (AC_EGREP_CPP, AC_TRY_LINK, AC_TRY_RUN, - AC_TRY_CPP): Add #line directives. - * autoconf.sh: Make the #line directives accurate. - From Franc,ois Pinard. - - * acgeneral.m4 (AC_OUTPUT): Set ac_given_INSTALL from INSTALL. - (AC_SUBST_FILE): Replace with what was AC_INSERT_FILE. - (AC_SUBST_DEFAULT): New macro. - (AC_INIT_BINSH): Renamed from AC_BINSH. - (AC_INIT_PREPARE): Call AC_SUBST_DEFAULT for CFLAGS, CXXFLAGS, and - LDFLAGS. - - * acspecific.m4 (AC_HEADER_MAJOR): Don't nest caching tests. - - * Makefile.in (clean): Remove the new index files. - - * configure.in: Check for gm4 before gnum4. - - * acspecific.m4 (AC_PROG_RSH): Macro removed. - - * Makefile.in (install): Install autoconf.m4. - - * acspecific.m4 (AC_SYS_INTERPRETER): New name and calling - convention for AC_HAVE_POUNDBANG. - (AC_OS_XENIX): Check ac_header_dir instead of DEFS. - - * testsuite/autoconf.s/specific.exp: Add AC_HEADER_DIRENT. - Remove AC_SYS_REMOTE_TAPE. Replace AC_HAVE_POUNDBANG with - AC_SYS_INTERPRETER. - - * acspecific.m4 (AC_INT_16_BITS, AC_LONG_64_BITS): Reword messages. - - * acgeneral.m4 (AC_CHECK_LIB): Use our standard alternate m4 quote - characters << and >> instead of /. - - * acspecific.m4 (AC_C_CONST, AC_TYPE_GETGROUPS, - AC_PROG_GCC_TRADITIONAL): Don't put the test program in a - temporary variable. - - * acgeneral.m4 (AC_CHECK_HEADERS, AC_CHECK_FUNCS): Use - AC_DEFINE_UNQUOTED. - * autoheader.sh (AC_DEFINE_UNQUOTED): Define. - -Tue Aug 23 00:03:06 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4: Improve comments on some macros. - Fix improperly quoted undefine calls. - (AC_QUOTE_DQUOTE, AC_QUOTE_SQUOTE, AC_QUOTE_HERE, AC_QUOTE_SED, - AC_QUOTE_TOKEN, AC_DEFINE_QUOTE, AC_DEFINE_SEDQUOTE, - AC_QUOTE_IDENTITY): Macros removed. - (AC_DEFINE, AC_DEFINE_UNQUOTED): Only write the (correct) value to - confdefs.h. - (AC_OUTPUT_MAKE_DEFS): New macro. - (AC_OUTPUT): Call it. Move AC_SUBST calls to AC_INIT_PREPARE. - (AC_OUTPUT_FILES): Put most variable substitutions in a here document - instead of a string, to avoid unwanted changes to the values. - (AC_OUTPUT_HEADER): Generate the sed script to transform - config.h.in from conftest.h. Only split up the sed script in - configure, not also in config.status. - - * acspecific.m4 (AC_PROG_ECHO_N): Work around some greps lacking -e. - - * acspecific.m4 (AC_PATH_X, AC_PATH_X_XMKMF, AC_PATH_X_DIRECT, - AC_PATH_XTRA): Fix cache use and message printing. - - * acgeneral.m4 (AC_SITE_LOAD): Check env var CONFIG_SITE first. - (AC_OUTPUT_HEADER): New macro broken out of AC_OUTPUT. - - * acgeneral.m4, acspecific.m4 (AC_FD_MSG, AC_FD_CC): New - symbolic constants. - - * acgeneral.m4, acoldnames.m4 (AC_INIT_PARSE_ARGS): Renamed from - AC_INIT_PARSEARGS. - - * autoupdate.sh: Use $SIMPLE_BACKUP_SUFFIX, if set. - - * autoheader.sh (AC_CHECK_LIB): Reflect the added arg. - - * autoconf.m4: New file. - * Makefile.in (DISTFILES): Add it. - * autoconf.sh, autoheader.sh, Makefile.in: Use it. - - * acspecific.m4 (AC_SYS_REMOTE_TAPE): Macro removed. - - * acfunctions, acheaders, acidentifiers, acmakevars, acprograms, - autoscan.pl: Use new macro names. - - * acgeneral.m4 (AC_MSG_ERROR): Enclose within {} so it acts like a - single statement. From mjshield@nyx.cs.du.edu (Michael Shields). - (AC_CHECK_FUNCS, AC_CHECK_HEADERS): Only compute the uppercase - name if we're going to define that symbol. - (global): Remove AC_DIVERSION_VAR. - (AC_OUTPUT): Adjust quoting and substitutions to replace most - variable values directly in the sed script. Handle srcdir, - top_srcdir, and INSTALL specially. - Add .cpp and .hpp to c-ish suffixes list. - - * configure.in: Use the new macro names. - - * ChangeLog.0: New file, broken out of ChangeLog.1. - * Makefile.in (DISTFILES): Add it. - - * autoupdate.sh: Update the regexps to account for changes to - acoldnames.m4. - -Mon Aug 22 23:57:18 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * testsuite/autoconf.s/specific.exp: Use new macro names. - -Fri Aug 12 10:15:51 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acspecific.m4 (AC_HEADER_DIRENT, AC_DIR_HEADER): Use one cache - variable for each header file, not one for all of them. - - * acgeneral.m4 (AC_CACHE_SAVE): Print a message noting when cache - is unwritable. - (AC_CHECK_FUNCS, AC_CHECK_HEADERS): Take an optional arg to - execute on a match. - - * acspecific (AC_OS_AIX, AC_OS_MINIX, AC_OS_ISC): Don't need to be - called before AC_TRY_CPP, since that doesn't use CFLAGS. - - * acgeneral.m4 (AC_CHECK_PROG, AC_PATH_PROG): Print a result - whether or not we found the program. - (AC_CHECKING): Not obsolete. - (AC_WITH, AC_ENABLE, AC_INIT_PREPARE): Merge the --enable and - --with diversions. - - * acgeneral.m4 (AC_DEFUN): New macro. - Use it globally to define macros that are used as functions, - as opposed to macros that are used as variables. Remove calls to - AC_PROVIDE. - -Thu Aug 11 08:25:08 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acspecific.m4 (AC_OS_XENIX): Fix assignments. From Franc,ois - Pinard. - (AC_SYS_REMOTE_TAPE): Fix typo. - -Wed Aug 10 09:30:11 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acspecific.m4 (AC_C_CHAR_UNSIGNED): Don't lie about the result - if gcc, just ignore it. - - * acgeneral.m4 (AC_CHECK_LIB): Add a function argument. - * acgeneral.m4 (AC_HAVE_LIBRARY): Make it a wrapper around - AC_CHECK_LIB. - * acoldnames.m4: Remove its alias. - * acspecific.m4: Add argument to callers. - - * acspecific.m4 (AC_PROG_ECHO_N): Move from acgeneral.m4 AC_MSG_ECHO_N. - * acgeneral.m4: Callers changed. - - * acgeneral.m4 (AC_CACHE_LOAD, AC_CACHE_SAVE, AC_SITE_LOAD, - AC_MSG_CHECKING): Aesthetic changes to messages, suggested by - Franc,ois Pinard. - - * acspecific.m4 acgeneral.m4 acoldnames.m4: Rename - AC_TRY_CROSS to AC_C_CROSS. - - * acgeneral.m4 (AC_INIT_PARSEARGS): Don't mention --verbose in - help message. - (AC_INIT_PREPARE): Use file descriptor 5 for config.log, and 6 for - nothing. --verbose no longer does anything. - (AC_MSG_ECHO_N): New macro. - (AC_MSG_CHECKING, AC_MSG_RESULT, AC_CACHE_VAL): Require it and use - the shell variables it sets. - (AC_MSG_RESULT, AC_VERBOSE): Print unless --silent/--quiet is given, - not only when --verbose is given. - (AC_DEFINE): Don't echo anything. - (AC_CACHE_VAL): Use a custom echo instead of AC_MSG_RESULT. - * acgeneral.m4 (AC_CHECKING, AC_VERBOSE): Put back real versions, - marked obsolete. - * acoldnames.m4: Delete their aliases. - * acgeneral.m4, acspecific.m4 (many macros): Make sure each call - to AC_MSG_CHECKING has exactly one matching AC_MSG_RESULT, and - make the result messages make sense with the checking messages. - - * acgeneral.m4 (AC_OUTPUT_SUBDIRS): Use echo, not AC_MSG_RESULT, - to print recursion notice. - -Tue Aug 9 00:17:28 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 (AC_OUTPUT): Add comment mentioning config.log. - - * ChangeLog.1: File split out of ChangeLog. - * Makefile.in (DISTFILES): Add it. - - * acgeneral.m4 (AC_OUTPUT, AC_OUTPUT_HEADER), autoheader.sh: - Support optional input-file specification in output-file names. - * autoheader.sh: Support top and bottom comments for config.h.in - in acconfig.h. - - * acgeneral.m4, README: Say more about requiring GNU m4. - - * autoheader.sh: In the list of symbols to get template entries - for, start each symbol with a blank. - - * autoupdate.sh: Add sed substitutions for replacing macro - calls without parameters. - - * acgeneral.m4 (AC_CACHE_VAL): Omit the cache var name from the - result message. - - * acspecific.m4 (AC_DIR_HEADER): Define to be similar to - AC_HEADER_DIRENT, but only define the old cpp macros. - (AC_HEADER_DIRENT): Only define the new ones. - * acoldnames.m4: Don't say that those two macros are synonyms. - * acconfig.h: Add the new cpp macros. Add <> to some comments. - - * acgeneral.m4 (AC_OUTPUT): Don't mess with $INSTALL if it starts - with a $, due to user intervention. - - * Makefile.in, testsuite/Makefile.in: Fix *clean targets. - - * acgeneral.m4 (AC_CACHE_SAVE, AC_CACHE_LOAD, AC_SITE_LOAD): - Use echo instead of AC_MSG_RESULT. - (AC_INIT_PARSEARGS): Group options by topic in help message. Idea - from Franc,ois Pinard. - - * TODO: New file. - -Mon Aug 8 23:04:01 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 (AC_OUTPUT): Tighten up srcdir handling code slightly. - Add one or more ../ to $INSTALL when it's a relative path and - creating a file in a subdirectory. - -Tue Aug 2 19:54:26 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * autoheader.sh: Read acoldnames.m4. Redefine the new macro names. - Only define HAVE_LIBFOO where AC_CHECK_LIB is called with only one - argument. - -Sat Jul 30 09:53:38 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 acspecific.m4: The Great Renaming. - (Well, I think it's great. You may have your own opinion.) - - * acspecific.m4 (AC_DIR_HEADER): Define HAVE_<path>_H as well as - the old DIRENT, SYSDIR, etc. - - * acgeneral.m4 acspecific.m4: Add missing spaces between arguments - to m4 calls. From Franc,ois Pinard. - - * autoconf.sh: Read acoldnames.m4. - * Makefile.in (DISTFILES, PROGS, install, clean): Add - acoldnames.m4 and autoupdate.sh. - -Tue Jul 26 08:52:17 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * testsuite/Makefile.in (check): Print a message noting that - runtest is part of DejaGNU. - - * autoscan.pl: Remove unneeded backslash. - -Sun Jul 24 23:30:27 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * Makefile.in (clean mostlyclean distclean realclean): Recurse - into testsuite directory. - -Wed Jul 20 09:38:29 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * Makefile.in (install): Add missing else and fi. - * acspecific.m4 (GETGROUPS_T, RETSIGTYPE, STACK_DIRECTION): Use - AC_DEFINE_UNQUOTED rather than AC_DEFINE. - From Jim Meyering. - -Tue Jul 19 14:49:02 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acspecific.m4 (AC_MEMORY_H): Add more quotes. - - * acgeneral.m4 (AC_TEST_RUN): Check for cross_compiling = yes, not - whether it's non-empty. - - * acspecific.m4 (AC_MINUS_C_MINUS_O, AC_SET_MAKE): Eval the cache var - assignments. - (AC_YYTEXT_POINTER): Fix typo. - - * testsuite/autoconf.s/specific.exp, - testsuite/autoconf.g/sizeof_type.exp, - testsuite/autoconf.g/init.exp: New files. - * testsuite/lib/common.exp, testsuite/config/unix.exp: Many - changes to make them work. - - * acgeneral.m4 (AC_DEFINE): Use redirection for echo, not $verbose. - -Sat Jul 2 22:07:18 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acspecific.m4 (AC_REMOTE_TAPE): Substitute PROGS. - -Thu Jun 30 16:29:15 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 (AC_SUBST_FILE): New version from Ken Raeburn. - - * ifnames: Add --help, --version, --macrodir options. - -Fri Jun 24 06:03:35 1994 Paul Eggert (eggert@twinsun.com) - - * acspecific.m4 (AC_VFORK): Improve test for the gcc-sparc vfork bug. - -Thu Jun 30 09:47:17 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * acgeneral.m4 (AC_OUTPUT_SUBDIRS): Pass correct --srcdir option - to sub configures. Quote args containing spaces. - (AC_PREPARE): Set and substitute `subdirs'. Quote args containing - spaces. - (AC_CANONICAL_HOST, AC_CANONICAL_TARGET, AC_CANONICAL_BUILD): - Substitute the cpu, vendor, os variables. - - * acspecific.m4 (AC_PROG_INSTALL): Look for ginstall before other - names. - - * acgeneral.m4 (AC_TEST_LINK): Add newlines around argument code. - From mjshield@nyx.cs.du.edu (Michael Shields). - -Wed Jun 29 16:56:28 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * autoscan.pl: Add --macrodir option. - - * acgeneral.m4 (AC_CACHE_SAVE): Capture stderr for Ultrix sh. - -Tue Jun 28 18:05:00 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * Makefile.in: Make INSTALL from install.texi. - -Thu Jun 23 02:03:19 1994 David J. MacKenzie (djm@vortex.eng.umd.edu) - - * ifnames.sh: New file. - * Makefile.in: Add it in various places. - -Tue Jun 14 12:58:38 1994 David J. MacKenzie (djm@bleen.eng.umd.edu) - - * Makefile.in (DISTFILES): Add testsuite files. - - * autoconf.sh: Print version number on stdout, not stderr. - * acgeneral.m4: Ditto. - - * acgeneral.m4 (AC_HAVE_LIBRARY): Add OTHER-LIBRARIES arg. - Treat empty commands args as if they weren't given. - -Thu Jun 9 11:39:14 1994 David J. MacKenzie (djm@bleen.eng.umd.edu) - - * acgeneral.m4 (AC_CHECK_TYPE): New macro. - - * acspecific.m4 (AC_PROG_CPP, AC_PROG_CXXCPP, AC_YYTEXT_POINTER, - AC_LN_S, AC_RSH, AC_STDC_HEADERS, AC_MAJOR_HEADER, AC_DIR_HEADER, - AC_STAT_MACROS_BROKEN, AC_SYS_SIGLIST_DECLARED, AC_GETGROUPS_T, - AC_UID_T, AC_RETSIGTYPE, AC_MMAP, AC_VFORK, AC_WAIT3, AC_ALLOCA, - AC_GETLOADAVG, AC_UTIME_NULL, AC_STRCOLL, AC_SETVBUF_REVERSED, - AC_STRUCT_TM, AC_TIME_WITH_SYS_TIME, AC_TIMEZONE, AC_ST_BLOCKS, - AC_ST_BLKSIZE, AC_ST_RDEV, AC_CROSS_CHECK, AC_CHAR_UNSIGNED, - AC_LONG_DOUBLE, AC_WORDS_BIGENDIAN, AC_ARG_ARRAY, AC_INLINE, - AC_CONST, AC_HAVE_POUNDBANG, AC_REMOTE_TAPE, AC_LONG_FILE_NAMES, - AC_RESTARTABLE_SYSCALLS, AC_FIND_X, AC_FIND_X_XMKMF, - AC_FIND_X_DIRECT): Cache results. - (AC_SIZE_T, AC_PID_T, AC_OFF_T, AC_MODE_T): Use AC_CHECK_TYPE. - (AC_DIR_HEADER_CHECK): Macro removed. - -Wed Jun 8 18:03:45 1994 David J. MacKenzie (djm@bleen.eng.umd.edu) - - * acspecific.m4 (AC_MINUS_C_MINUS_O): Cache results. - -Thu May 26 09:43:37 1994 David J. Mackenzie (djm@poseidon.cygnus.com) - - * acspecific.m4 (AC_PROG_CC, AC_PROG_CXX): Cache results. - Eliminate temp file in gcc test. - (AC_GCC_TRADITIONAL): Cache results. - -Wed May 25 14:45:44 1994 David J. Mackenzie (djm@poseidon.cygnus.com) - - * acspecific.m4 (AC_VPRINTF): Use AC_FUNC_CHECK. - - * acgeneral.m4 (AC_CONFIG_AUX_DIR): Renamed from AC_CONFIG_AUXDIR. - (AC_SUBST_FILE): Macro deleted; didn't work, not clear it's needed. - - * acgeneral.m4 (AC_SITE_LOAD): New macro. - (AC_PREPARE): Call it. - -Wed May 25 08:18:07 1994 David J. Mackenzie (djm@rtl.cygnus.com) - - * acgeneral.m4: m4exit if --version, to reduce needless delay. - - * acgeneral.m4 (AC_PREPARE): Redirect file descriptor 6 to - config.log. - (AC_LANG_C, AC_LANG_CPLUSPLUS): Send compiler messages to desc 6. - * acspecific.m4 (AC_MINUS_C_MINUS_O): Likewise. - * Makefile.in (distclean): Remove config.log. - - * acgeneral.m4 (AC_PREPARE): Add AC_BEFORE calls for AC_CONFIG_HEADER, - AC_REVISION, AC_PREREQ, and AC_CONFIG_SUBDIRS. - Add AC_PROVIDE calls to those macros and AC_ARG_ENABLE and AC_ARG_WITH. - - * acgeneral.m4 (AC_CANONICAL_SYSTEM, AC_CANONICAL_HOST, - AC_CANONICAL_TARGET, AC_CANONICAL_BUILD): Add "ICAL" to names. - (AC_LINK_FILES): Renamed from AC_MAKE_LINKS. - (AC_TEST_RUN): Renamed from AC_TEST_PROGRAM, which is now an alias. - * acspecific.m4: Change callers to use new name. - - * acgeneral.m4 (AC_PREFIX_INTERNAL): Renamed from AC_PREFIX. - (AC_PREFIX): Obsolete wrapper for it. - (AC_PREFIX_PROGRAM): Define a variable. - (AC_PREPARE): Call AC_PREFIX_INTERNAL if that variable is set. - -Tue May 24 18:49:35 1994 David J. Mackenzie (djm@rtl.cygnus.com) - - * acspecific.m4 (AC_ALLOCA): Don't declare alloca if it's already - defined. From Bill Sommerfeld <sommerfeld@apollo.hp.com>. - - * acgeneral.m4 (AC_TEST_PROGRAM): Verbosely note when using the - cross-compiling default. - (AC_CACHE_WRITE): Set the cache values only if not already set. - (AC_PARSEARGS, AC_OUTPUT): Allow giving an empty prefix or exec_prefix. - - AC_CONFIG_AUXDIR*. - - * acgeneral.m4, acspecific.m4: Rename AC_CONFIG_AUX* to - AC_CONFIG_AUXDIR*. - - * acgeneral.m4 (AC_OUTPUT, AC_OUTPUT_HEADER): Add an env var - CONFIG_STATUS to allow overriding the name of config.status. - - * acspecific.m4 (AC_MINUS_C_MINUS_O): If $CC=cc, don't duplicate - the check. From Jim Meyering. - - * acgeneral.m4 (AC_TEST_PROGRAM): Add missing newline. - Always include 'fi' for cross-compiling if. - From Jim Meyering. - - * Makefile.in (prefix, exec_prefix): Use @ substitutions. - - * acgeneral.m4: Make default cache file ./config.cache, - so PATH is not used by "." command. From Jim Meyering. - -Thu May 19 06:05:07 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STRUCT_TM): Fixed checking message to be less - confusing. - -Wed May 18 22:11:45 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_BINSH): New macro. - (AC_INIT, AC_REVISION): Require AC_BINSH first thing. - -Wed May 18 09:08:39 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * acgeneral.m4: Rename some internal macros. - Give the diversions symbolic names. - (AC_ARG_ENABLE, AC_ARG_WITH, AC_ENABLE_INTERNAL, AC_WITH_INTERNAL): - New macros. - (AC_PARSEARGS): Print --with and --enable help strings. - (AC_ENABLE, AC_WITH): Make wrappers around _INTERNAL functions. - Mark obsolete. - (AC_PREPARE): Execute any saved up --with or --enable code. - -Tue May 17 15:18:00 1994 David J. MacKenzie (djm@bleen.eng.umd.edu) - - * acgeneral.m4 (AC_REVISION): Move quotes around to make it work - again. - -Sat May 14 07:30:57 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4, acspecific.m4: Clean up some comments. - -Tue May 10 09:50:12 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acspecific.m4 (AC_PROG_INSTALL): set the _path_ cache variable, - not the _program_ one. - * acgeneral.m4 (AC_PREFIX): Call AC_PROGRAM_PATH instead of - duplicating it. - (AC_PROGRAM_CHECK, AC_PROGRAM_PATH): If the user set the variable - in the environment, cache that value. - (AC_PREPARE, AC_CHECKING, AC_VERBOSE): Use file descriptors 4 and - 5 for checking and results messages. Idea from metaconfig 3.0. - -Mon May 9 08:20:14 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4 (AC_TEST_PROGRAM): If no default for - cross-compiling is given, but we are cross-compiling, give an error. - (AC_PROGRAM_EGREP, AC_TEST_LINK, AC_TEST_PROGRAM, AC_TEST_CPP): - Don't add an extra blank line after the if-clause. - (AC_REVISION): Merge AC_DOREV into this macro. - Rename some macros: - AC_SYSTEM_TYPE -> AC_CANON_SYSTEM - AC_HOST_TYPE -> AC_CANON_HOST - AC_TARGET_TYPE -> AC_CANON_TARGET - AC_BUILD_TYPE -> AC_CANON_BUILD - (AC_OUTPUT): Don't do Cygnus-style magic - substitutions on prefix and exec_prefix, just initialize and - substitute them normally. - -Sun May 8 01:09:42 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_AIX, AC_MINIX, AC_ISC_POSIX): Don't call - AC_BEFORE for AC_HEADER_EGREP, to avoid require loops. - * acgeneral.m4 (AC_HEADER_EGREP): Call AC_PROGRAM_EGREP instead of - duplicating most of it. - -Fri May 6 15:26:48 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acspecific.m4 (AC_YYTEXT_POINTER): Use AC_TEST_LINK, not - AC_TEST_PROGRAM. - -Fri May 6 00:45:29 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acspecific.m4, acgeneral.m4: Add dnl after AC_PROVIDE, - AC_REQUIRE, and AC_BEFORE calls. - Use AC_CHECKING and AC_TEST_LINK instead of AC_COMPILE_CHECK. - - * acgeneral.m4 (AC_TEST_LINK): New macro. - (AC_COMPILE_CHECK): Mark obsolete. Call AC_CHECKING and - AC_TEST_LINK. - (AC_PROGRAM_CHECK, AC_PROGRAM_PATH, AC_HAVE_LIBRARY, AC_HEADER_CHECK, - AC_FUNC_CHECK, AC_SIZEOF_TYPE): Print "checking" messages even if - using cached values. Use AC_TEST_LINK instead of AC_COMPILE_CHECK. - * acspecific.m4 (AC_PROG_INSTALL): Ditto. - - * acgeneral.m4 (AC_PROGRAM_CHECK, AC_PROGRAM_PATH): Fix nesting in - cache use. - - * acspecific.m4 (AC_PROG_INSTALL): Ditto. - - * acgeneral.m4 (AC_OUTPUT_CONFIG_SUBDIRS): Adjust relative cache - file paths before passing them to sub-configures. Omit existing - --cache-file arguments. - -Thu May 5 21:38:51 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4 (AC_FUNC_CHECK, AC_HEADER_CHECK): Combine redundant - code. Use AC_CACHE_VAL. - (AC_SIZEOF_TYPE): Use AC_CACHE_VAL. - -Thu May 5 12:51:32 1994 David J. MacKenzie (djm@gamera.eng.umd.edu) - - * Makefile.in (all): Don't depend on info files. - (install): Don't install INSTALL. - (installcheck, install-info): New targets. - -Thu May 5 08:49:39 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Makefile.in (dist): chmod the dist directory, not the current - directory. Don't depend on DISTFILES. - - * autoconf.sh: Go back to old way of doing NLS nuisance test. - * autoheader.sh: Ditto. - * acgeneral.m4: Ditto. - -Thu May 5 08:36:19 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4: Use "yes" and "no" or "" uniformly for boolean - variables' values. Don't assume default values. - (AC_PROGRAM_CHECK, AC_PROGRAM_PATH): Always set the cache variable - and use different ones. - - * acspecific.m4: Use "yes" and "no" or "" uniformly for boolean - variables' values. Don't assume default values. - (AC_STDC_HEADERS, AC_ALLOCA): Untangle nested tests. - -Thu May 5 07:51:38 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Makefile.in (distclean): Remove config.cache. - -Wed May 4 19:41:35 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_HAVE_LIBRARY): Use AC_CACHE_VAL. - - * Makefile.in (install): Depend on all again. - (install-info): Depend on info again. - -Wed May 4 15:05:11 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Use AC_CACHE_VAL. - * acgeneral.m4 (AC_PROGRAM_CHECK, AC_PROGRAM_PATH): Use AC_CACHE_VAL. - (AC_REPLACE_FUNCS): Use AC_FUNC_CHECK. - Rearrange general tests into 4 categories: - Checking for files - fundamental (caching) - Checking for files - derived (caching) - Checking for C features - fundamental (no caching) - Checking for C features - derived (caching) - - * acgeneral.m4 (AC_CACHE_LOAD, AC_CACHE_SAVE, AC_CACHE_VAL): - New macros. - (AC_PREPARE): Call AC_CACHE_LOAD. - (AC_OUTPUT): Call AC_CACHE_SAVE. - (AC_PARSEARGS): Add --cache-file=FILE option. - (AC_CONFIG_SUBDIRS): Pass --cache-file to subdirectory configures. - - * acgeneral.m4 (AC_OUTPUT_CONFIG_SUBDIRS): Renamed from - AC_CONFIG_SUBDIRS. - (AC_CONFIG_SUBDIRS): Just define AC_SUBDIR_LIST. - (AC_OUTPUT): Call AC_OUTPUT_CONFIG_SUBDIRS if AC_SUBDIR_LIST is - defined. - Make config.status --recheck pass --norecursion to configure. - - * acspecific.m4 (AC_SETVBUF_REVERSED): Print "checking" message. - -Wed May 4 10:40:56 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * autoreconf.sh: Add options [--help] [--macrodir=dir] [--verbose] - [--version]. - - * acspecific.m4 (AC_GCC_TRADITIONAL, AC_SET_MAKE, AC_RSH, - AC_GETLOADAVG, AC_CROSS_CHECK): Print results verbosely. - (AC_GETLOADAVG): Namespace cleanup. - -Wed May 4 09:32:04 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * autoheader.sh, autoconf.sh, acgeneral.m4: Make the NLS - nuisance test actually do something. - -Mon May 2 16:31:33 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * configure.in: Check for standards.texi. - * Makefile.in: Put everything back into one directory. - Don't assume standards.* exist. - -Sat Apr 30 09:37:06 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Change >> to > in sed command. - -Fri Apr 29 21:56:33 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Makefile.in (all): Make autoreconf too. - -Fri Apr 29 21:03:48 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4 (AC_OUTPUT): When doing substitutions on files, if - the file starts with "#!", put the "automatically generated" - comment on the second line instead of the first. - -Fri Apr 29 12:53:53 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * acgeneral.m4 (AC_CONFIG_AUX, AC_CONFIG_AUX_DEFAULT, - AC_CONFIG_AUX_DIRS, AC_SYSTEM_TYPE, AC_HOST_TYPE, AC_TARGET_TYPE, - AC_BUILD_TYPE, AC_SUBST_FILE, AC_MAKE_LINKS, AC_OUTPUT_MAKE_LINKS, - AC_CONFIG_SUBDIRS): New macros. - - * acspecific.m4 (AC_PROG_INSTALL): Use install.sh from ac_aux_dir. - - * Makefile.in: Remove references to standards.*. - Add autoreconf. - -Thu Apr 28 12:01:01 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * Makefile.in (dist): Add .., ../etc, and ../texinfo files. - - * acspecific.m4 (AC_LN_S): Add verbose messages. - - * Makefile.in, configure.in: Add autoscan and its data files. - Check for perl. diff --git a/util/autoconf/ChangeLog.1 b/util/autoconf/ChangeLog.1 deleted file mode 100644 index 5e2f017..0000000 --- a/util/autoconf/ChangeLog.1 +++ /dev/null @@ -1,1920 +0,0 @@ -Thu May 12 15:55:40 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Version 1.11. - - * autoconf.texi: Document filename restriction on CPP. - -Thu May 12 10:11:20 1994 David J. MacKenzie (djm@hill.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Treat "./Makefile" like "Makefile". - From Karl Berry. - -Tue May 10 00:08:19 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Set prefix and exec_prefix if they - weren't set already. - -Sat May 7 20:06:59 1994 Noah Friedman (friedman@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL): If using install.sh, add `-c' - to INSTALL. - -Sat May 7 15:36:22 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4 (AC_OUTPUT): If configuring in the source tree, - don't end top_srcdir with "/.". - * acspecific.m4 (AC_SET_MAKE): Remove temp file. - From John Interrante <interran@uluru.stanford.edu>. - -Fri May 6 15:26:48 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acgeneral.m4 (AC_SIZEOF_TYPE): Fatal error if test program fails. - -Fri May 6 12:52:19 1994 David J. MacKenzie (djm@gamera.eng.umd.edu) - - * acgeneral.m4 (AC_OUTPUT): Run "./config.status", not "config.status". - From Kevin Gallagher <kgallagh@spd.dsccc.com>. - -Fri May 6 00:45:29 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * acspecific.m4 (AC_WAIT3): Sleep in the parent to avoid rm - problems on fast machines. From david d zuhn. - -Thu May 5 12:51:32 1994 David J. MacKenzie (djm@gamera.eng.umd.edu) - - * Version 1.10. - - * Makefile.in (install): Don't install INSTALL. - (installcheck, install-info): New targets. - -Mon May 2 16:31:33 1994 David J. MacKenzie (djm@aria.eng.umd.edu) - - * autoconf.sh, autoheader.sh: If M4 is an absolute file name that - no longer exists, use M4=m4. - -Mon May 2 13:06:06 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * acspecific.m4 (AC_HAVE_POUNDBANG): Quote # in message. - From schwab@issan.informatik.uni-dortmund.de (Andreas Schwab). - - * autoconf.texi: Document config.h.bot. Fix typo in AC_HAVE_POUNDBANG. - - * acspecific.m4 (AC_PROG_CXX): Look for "cxx" (DEC C++ compiler) too. - - * autoheader.sh: Fix tr string for Solaris tr. - Add config.h.bot if present. - From richard@sol.kbsi.com (Richard Henderson). - -Fri Apr 29 12:53:53 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Use install.sh from srcdir - or srcdir/.. or srcdir/../.. and never default to cp. - -Thu Apr 28 12:01:01 1994 David J. MacKenzie (djm@burnout.eng.umd.edu) - - * acconfig.h: Add HAVE_MMAP entry. - * acspecific.m4 (AC_MMAP): If NBPC is not defined, use PAGESIZE. - From "Kaveh R. Ghazi" <ghazi@eden.rutgers.edu>. - - * acgeneral.m4 (AC_OUTPUT_HEADER): For each file being created, - munge a copy of conftest.sed rather than the original. - From brook@trillium.botany.utexas.edu (Brook Milligan). - -Tue Apr 26 00:27:21 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_LANG_C, AC_LANG_CPLUSPLUS): Remove CFLAGS and - CXXFLAGS from ac_cpp. - -Thu Apr 21 19:43:20 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Version 1.9. - - * autoconf.texi: Document special AC_FIND_XTRA ordering - dependencies. - - * acspecific.m4 (AC_FIND_XTRA): Reorder AC_REQUIREs. - - * acspecific.m4 (AC_FIND_X): AC_REQUIRE_CPP. - - * acspecific.m4 (AC_PROG_LEX): Say what we set LEXLIB to. - -Wed Apr 20 13:17:05 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Allow . in hostnames. Use string - comparison on them. - (AC_HAVE_LIBRARY): namespace cleanup. - - * autoconf.texi: Describe changes to AC_FIND_X, AC_FIND_XTRA, and - AC_YYTEXT_POINTER. - - * acconfig.h: Replace DECLARE_YYTEXT with YYTEXT_POINTER. - - * acgeneral.m4 (AC_PARSEARGS): --gas and --x set with_gas and - with_x to yes, not 1. - - * acspecific.m4 (AC_YYTEXT_POINTER): New macro, replacing - AC_DECLARE_YYTEXT. - (AC_FIND_X): Assume no X if --without-x was given. - (AC_FIND_XTRA): Quotes AC_REQUIRE args. Run uname in a subshell in - case it's missing. Put -l options in X_EXTRA_LIBS. Print values - of the variables we set if verbose. - -Tue Apr 19 14:14:25 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Note GNU m4 1.0 bugs. - - * acspecific.m4 (AC_FIND_X_XMKMF): Set variables correctly. - - * autoconf.texi: Don't @setchapternewpage odd by default. Mention - autoheader AC_SIZEOF_TYPE symbol generation. - - * acgeneral.m4 (AC_SIZEOF_TYPE): Fix typo. - - * Makefile.in (install): Don't install aclocal.m4. - - * autoheader.sh: Generate entries for AC_SIZEOF_TYPE - automatically. - -Mon Apr 18 22:14:59 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_SIZEOF_TYPE): Remove second arg, and generate a - symbol name automatically. - - * autoconf.texi: Document new AC_SIZEOF_TYPE usage. - - * acspecific.m4 (AC_PROG_INSTALL): Only filter out "install" - containing "dspmsg". - (AC_FIND_X_XMKMF): Fix variable names to not conflict with grep -v. - - * autoconf.texi: Various small fixes. - - * INSTALL: Say configure takes "awhile". - -Sat Apr 16 15:05:31 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4: Call AC_LANG_C in AC_PREPARE, not AC_INIT. - -Fri Apr 15 07:00:37 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Version 1.8. - - * acgeneral.m4: Rename ac_configure_args back to configure_args, - since some people have been using it. - -Thu Apr 14 14:45:29 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Note that AC_ENABLE and AC_WITH arguments - shouldn't contain blanks, for now. - -Wed Apr 13 17:26:36 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_SET_MAKE): Use $MAKE if defined, else "make". - - * autoconf.texi: Add missing files to diagram. - - * acgeneral.m4 (AC_TEST_CPP): Propogate comment about Coherent - lossage into configures. - -Sat Apr 9 17:34:29 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Unknown option is a fatal error. - - * acgeneral.m4: Remove ac_ prefix from some variables set by - options, for consistency and backward compatibility. - -Fri Apr 8 13:24:29 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_XTRA): Don't test for -lsocket on IRIX. - From Karl Berry. - - * acspecific.m4 (AC_FIND_X_XMKMF, AC_FIND_X_DIRECT): Don't - override --x-includes and --x-libraries. Check openwin last due - to its bugs. - - * acgeneral.m4: Add --x-includes, --x-libraries options. Document - them and --build, --host, --target. - - * autoconf.texi: Mention --x-includes and --x-libraries. - - * INSTALL: Mention --x-includes and --x-libraries. - -Tue Apr 5 12:46:47 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Document top_srcdir substitution. - - * acspecific.m4 (AC_PROG_INSTALL): Look for install.sh in - @top_srcdir@, not $srcdir. - - * acgeneral.m4 (AC_OUTPUT): AC_SUBST top_srcdir. Set it. - -Mon Apr 4 20:13:08 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Fix dependencies examples. - - * Makefile.in: Update configuration dependencies. - - * acgeneral.m4: Add back --no-create option. Make config.status - --recheck use it. - - * autoheader.sh: Go back to doing move-if-change. (Work around in - dependencies by using stamp files.) - -Thu Mar 31 11:34:50 1994 David J. MacKenzie (djm@hill.gnu.ai.mit.edu) - - * Makefile.in (autoconf, autoheader, configure): Write to $@.tmp - instead of to $@ directly so that after a disk full error, the - targets to not exist. Otherwise, a subsequent make could install - a corrupt (but not executable) script. From Jim Meyering. - -Thu Mar 31 08:22:29 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Re-document --with argument. - - * acgeneral.m4 (AC_PARSEARGS): --with can take an argument again. - -Wed Mar 30 20:01:57 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Document --disable- options. - - * acgeneral.m4 (AC_PARSEARGS): Add --disable-FEATURE. - - * INSTALL: Mention --enable- options. - -Mon Mar 28 17:43:22 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Make multiple non-option args a - fatal error. - - * acspecific.m4: Change all occurrences of $(MAKE_VAR) to - ${MAKE_VAR}. - - * autoconf.texi (Command Line): New node. Move some descriptions - here from General Feature Tests. Describe --without- options. - - * acgeneral.m4 (AC_PARSEARGS): Rewrite again, using ideas from the - GNU libc configure.in. All options that take an argument set - shell variables. - (AC_COMPILE_CHECK): Add `return' in `int' function. - - * INSTALL: Fix typo. - -Sun Mar 27 00:44:07 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_NOTICE): Don't save original args or initialize - options here. - (AC_PARSEARGS): Do them here. - (AC_PREPARE): Save a copy of original args here, if it hasn't been - done yet. - -Sat Mar 26 01:32:40 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4: Omit obsolete options from usage message. - Quote args to AC_CHECKING that contain m4 variables. - - * INSTALL: Note that env can be used to set env vars. - - * autoconf.texi: Document AC_SET_MAKE. - Note that vsprintf and vfprintf come with vprintf. - Note that env can be used to set env vars. - - * acspecific.m4 (AC_SET_MAKE): New macro. - (AC_PROG_INSTALL): Find scoinst as a good install program. - - * acgeneral.m4: Initialize variables set by options. - (AC_HAVE_HEADERS): Require cpp. - - * autoconf.texi: Document AC_ENABLE and @prefix@ and @exec_prefix@ - substitutions. - - * acgeneral.m4: Recognize all the Cygnus configure options; warn - about other arguments. Make default value for --with "yes", not - "1". AC_SUBST for prefix and exec_prefix. - (AC_ENABLE): New macro. - -Thu Mar 24 18:11:00 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * INSTALL: Describe recently added configure options. - - * autoconf.texi: Style cleanups. Mention config.h.top. - - * autoheader.sh: Add ${config_h}.top to the output, if it's - present. - -Thu Mar 24 13:36:19 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.sh: Remove all temp files when exiting. If m4 fails, - produce no output and exit with the m4 exit status. - - * autoconf.texi: Document AC_PREREQ. - - * acgeneral.m4 (AC_PREREQ): New macro, with some helper macros. - -Thu Mar 24 01:20:49 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * Makefile.in (acdatadir): New variable based on datadir, giving - Autoconf lib files their own subdirectory. Use it instead of - datadir. - -Wed Mar 23 22:41:54 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * autoconf.texi: Change names of nodes that describe invoking - configure and config.status to conform to coding standards. - Document --version, --help, --silent/--quiet, --verbose options to - configure and config.status. - - * acgeneral.m4 (AC_PARSEARGS): Add --help and --version to - configure. Simplify getting option arguments. Complain about - impossible host arguments. - (AC_OUTPUT): Add --help and --version to config.status. - -Wed Mar 23 00:16:28 1994 Roland McGrath (roland@mole.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_CHECKING): Do nothing if $ac_silent is set. - (AC_PARSEARGS): Grok -q/--quiet/--silent and set $ac_silent. - -Tue Mar 22 18:28:30 1994 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi: Document AC_SIZEOF_TYPE. - - * acspecific.m4 (AC_INT_16_BITS, AC_LONG_64_BITS): Mark obsolete - with advice to use AC_SIZEOF_TYPE instead. - - * acgeneral.m4 (AC_SIZEOF_TYPE): New macro. - -Tue Mar 22 08:44:40 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * autoconf.texi: Describe AC_CHECKING et al. - - * acspecific.m4: Use AC_CHECKING et al. where appropriate. - - * acgeneral.m4 (AC_CHECKING, AC_VERBOSE, AC_ERROR, AC_WARN): New - macros. Use them where appropriate. - (AC_LANG_C, AC_LANG_CPLUSPLUS): Fix quoting of ac_cpp. - - * acspecific.m4 (AC_PROG_CPP): Don't add $CFLAGS to CPP. - (AC_PROG_CXXCPP): Don't add $CXXFLAGS to CXXCPP. - - * acgeneral.m4 (AC_OUTPUT): Don't remove VPATH lines containing - colons. From Jim Meyering (meyering@comco.com). - (AC_LANG_C): Add CFLAGS to ac_cpp. - (AC_LANG_CPLUSPLUS): Add CXXFLAGS to ac_cpp. - -Sat Mar 19 16:38:03 1994 David J. MacKenzie (djm@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_LANG_RESTORE): Only emit shell code to change - the current language if it actually changed. - - * autoconf.texi: Add info dir entry. Describe new C++ macros and - AC_MMAP. - (Language Choice): New section. - Add another example of dependencies. - - * acspecific.m4 (AC_PROG_CXX, AC_PROG_CXXCPP, AC_REQUIRE_CPP): New - macros based on work by zoo@aggregate.com (david d zuhn). - (AC_DECLARE_YYTEXT): Use AC_REQUIRE_CPP. Warn that it's broken. - (AC_STDC_HEADERS): Use AC_REQUIRE_CPP. - (AC_MMAP): New macro from Mike Haertel and Jim Avera. - - * acgeneral.m4 (AC_PARSEARGS): Check for missing arguments to - options. Recognize --target. Save the original args before - modifying them. - (AC_INIT): Call AC_LANG_C. - (AC_PREPARE): Don't save the original args here (too late). - (AC_LANG_C, AC_LANG_CPLUSPLUS, AC_LANG_SAVE, AC_LANG_RESTORE): - New macros based on work by zoo@aggregate.com (david d zuhn). - (AC_HEADER_EGREP, AC_PROGRAM_EGREP, AC_COMPILE_CHECK, - AC_TEST_PROGRAM, AC_TEST_CPP): Use AC_REQUIRE_CPP and ac_ext and - ac_cpp. - - * autoheader.sh: Update the file even if it is unchanged, to avoid - foiling a Makefile rule that makes it from configure.in. If you - let the rule for making config.status from configure create - config.h from config.h.in, then an unnecessary update here will - not cause unneeded recompilation. Recompilation should only - happen if config.h is updated, which won't occur if config.h.in - had the same contents, even if its timestamp changed. (Ick.) - - * Makefile.in (Makefile): Don't depend on config.status, to avoid - running config.status too many times. - -Fri Mar 18 00:43:21 1994 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * autoconf.texi: Document AC_FIND_XTRA. - - * acgeneral.m4 (AC_OUTPUT): Remove VPATH lines if srcdir=., to - work around Sun make bug. From Karl Berry. - - Rename internal use shell variables to start with "ac_". - - Trap signal 2 (SIGINT), not signal 3 (SIGQUIT), which means stop - without cleaning up. From eggert@twinsun.com (Paul Eggert). - - * acspecific.m4 (AC_FIND_XTRA): New macro from Karl Berry - (karl@cs.umb.edu). - (AC_FIND_X, AC_ISC_POSIX): Provide self. - - (AC_DECLARE_YYTEXT): Move AC_SUBST. Don't quote value of - DECLARE_YYTEXT. From Karl Berry. - - (AC_PROG_CPP): Include $CFLAGS in CPP. - - Rename internal use shell variables to start with "ac_". - - * autoconf.sh, autoheader.sh: Trap signal 2 (SIGINT), not signal 3 - (SIGQUIT), which means stop without cleaning up. From - eggert@twinsun.com (Paul Eggert). - - * autoconf.texi: Mention shell variable prefixes. - - * autoconf.texi: Work around RCS substitution in AC_REVISION - example. - -Wed Mar 16 19:55:17 1994 Noah Friedman (friedman@prep.ai.mit.edu) - - * acgeneral.m4 (compile): Include $LDFLAGS. - -Thu Mar 10 01:27:20 1994 David J. MacKenzie (djm@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): Don't absolutize relative paths. - (AC_OUTPUT): For relative paths, prepend to $srcdir as many - "../" as the number of subdirectories deep the file being created is. - -Tue Feb 15 16:02:19 1994 Noah Friedman (friedman@prep.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Reject /sbin/install. - -Sun Feb 13 21:15:45 1994 Noah Friedman (friedman@prep.ai.mit.edu) - - * autoconf.texi (Setting Variables, Sample configure.in): Replace - references to AC_UNISTD_H with AC_HAVE_HEADERS(unistd.h). - -Thu Feb 10 21:39:43 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_SYS_SIGLIST_DECLARED): New macro. - -Sat Feb 5 13:35:52 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Check for -lkvm separately after - -lutil check. - -Fri Feb 4 17:17:11 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT_HEADER): Move creation of conftest.sed - outside of `for' loop. We need only do this once for all the - output files. - -Fri Jan 21 16:35:00 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL_INSTALL_SH): New macro for - INSTALL value to use install.sh. - (AC_PROG_INSTALL): Use it. - -Thu Jan 6 16:22:25 1994 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE): Use AC_QUOTE_SQUOTE instead of - AC_DEFINE_QUOTE on AC_VAL. From Bruno Haible - <haible@ma2s2.mathematik.uni-karlsruhe.de>. - * acgeneral.m4 (AC_DEFINE_UNQUOTED): pushdef/popdef - AC_QUOTE_SQUOTE instead of AC_DEFINE_QUOTE. - -Wed Dec 22 03:51:53 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE): in verbose strings, put - AC_DEFINE_QUOTE exprs in double quotes to avoid shell wildcard - expansion. - - * acgeneral.m4 (AC_PROGRAM_PATH, AC_PROGRAMS_PATH): New macros. - * autoconf.texi (General Tests): Document them. - - * configure.in: Use AC_PROGRAMS_PATH to find m4, not AC_PROGRAMS_CHECK. - Put `m4' in the list of progs-to-check, since we want the absolute - pathname for that too if we can get it. - -Fri Dec 17 13:44:24 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_ALLOCA): define HAVE_ALLOCA if alloca is - present in system libraries. - -Tue Dec 14 14:53:55 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): Remove $ac_clean_files in traps. - - * acspecific.m4 (AC_STDC_HEADERS): Check that free appears in stdlib.h. - -Fri Dec 10 06:35:25 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Don't look for install in `.'. - -Wed Dec 8 12:10:59 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X_XMKMF): Redirect stderr to /dev/null in - eval'd make pipeline. - - * acgeneral.m4 (AC_QUOTE_SED): Quote ! as well. - -Mon Dec 6 23:41:05 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_CPP): Try 'cc -E -traditional-cpp' for NeXT. - -Thu Dec 2 02:25:39 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): use rm -r to remove conftest* both in - exit traps and at start of script. - -Wed Dec 1 03:22:21 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X_DIRECT): Search for includes and libs - in more places. - -Sun Nov 28 21:57:31 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acgeneral.m4 (AC_NOTICE): Replace "this program" with "this - configure script" to disambiguate between configure and the - program it is distributed with (which can have different terms). - -Tue Nov 23 19:41:53 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X_DIRECT): Use the shell variable - `x_direct_test_include' to choose the include file to search for. - -Sat Nov 20 17:58:09 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X_DIRECT): Search for R6 includes & libs - in various places. Look for /usr/athena/include & /usr/athena/lib. - Make AC_HAVE_LIBRARY check for the library specified by the shell - variable `x_direct_test_library', rather than hardcoding Xt (to - which the shell variable now defaults). - -Thu Nov 18 18:17:21 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT_HEADER): Use ! instead of @ as the - sed substitution separator. - - * install.sh: New file. - * Makefile.in (DISTFILES): Add it. - * acspecific.m4 (AC_PROG_INSTALL): Use it as the default - instead of cp, if it's there. - -Sat Nov 13 12:24:57 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Extend that last change to also - happen for .C, .cc, and .m (objc) files. - -Wed Nov 10 09:26:35 1993 Noah Friedman (friedman@gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): When substituting .c or .h files, put - autoconf-added comments in '/* ... */'. - -Mon Nov 8 16:22:48 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_NOTICE): Put autoconf version number in configure. - -Fri Nov 5 23:31:28 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X_XMKMF): properly quote `acfindx' rule. - -Fri Oct 29 21:46:57 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (HAVE_LONG_DOUBLE): Add code to detect Stardent - Vistra lossage. From Kaveh R. Ghazi (ghazi@noc.rutgers.edu). - -Tue Oct 26 15:24:33 1993 David J. MacKenzie (djm@churchy.gnu.ai.mit.edu) - - * Version 1.7. - -Tue Oct 19 23:49:50 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_TEST_PROGRAM): Don't remove conftest* before - running $2 or $3 or $4; just once at the end. - -Mon Oct 18 01:38:00 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): Echo a newline into confdefs.h so it - is never empty. - -Fri Oct 15 18:49:20 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_CONST): Added test of trivial use for broken - Ultrix-32 V3.1 Rev 9 vcc. - -Fri Oct 15 15:44:39 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OBSOLETE): New macro. - * acspecific.m4 (AC_UNISTD_H, AC_USG, AC_MEMORY_H): Call it. - - * acspecific.m4 (AC_LONG_FILE_NAMES): Try to create files in - ${prefix}/lib and ${exec_prefix}/lib instead of ${prefix} and - ${exec_prefix}; they are more likely to be writable. - - * Makefile.in (clean): Remove *.ma and *.mas, the macro index files. - -Tue Oct 12 16:02:52 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_RETSIGTYPE): AC_PROVIDE self. - -Mon Oct 11 19:09:20 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * Makefile.in (editsh): Obfuscate @M4@ and @datadir@ references so - configure doesn't edit them. - -Sun Oct 10 14:01:35 1993 Jim Meyering (meyering@comco.com) - - * autoconf.sh (--help): Exit successfully. - -Sat Oct 9 08:29:15 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * Version 1.6. - - * acconfig.h (inline): New entry. - - * acspecific.m4 (AC_DIR_HEADER_CHECK): Don't call opendir, in - case the needed libraries (e.g., -ldir on Xenix) aren't in - LIBS yet. From Jim Meyering (meyering@comco.com). - - * acspecific.m4 (AC_PROG_LEX): Fix typo. - - * acgeneral.m4 (AC_HEADER_EGREP, AC_PROGRAM_EGREP, - AC_COMPILE_CHECK, AC_TEST_PROGRAM, AC_TEST_CPP): Remove any - temporary files before doing the actions, in case they're - nested tests. From gray@antaire.com (Gray Watson). - - * configure.in: Check for GNU m4 under several names. - * Makefile.in: Use that value. - From Franc,ois Pinard. - - * acspecific.m4 (AC_STRUCT_TM): Use a member of struct tm, to - make sure the compiler complains if it's not defined. - From Bruno Haible (haible@ma2s2.mathematik.uni-karlsruhe.de). - - * acspecific.m4 (AC_FIND_X_XMKMF): If libX11.a isn't in - USRLIBDIR, check in LIBDIR. Filter out any make verbose messages. - -Tue Oct 05 19:21:29 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_LONG_DOUBLE): Announce that this feature is being - checked even if the test is simply whether $CC is gcc. - -Tue Oct 5 14:23:28 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh: Produce HAVE_LIBfoo for AC_HAVE_LIBRARY. - -Sun Oct 3 15:41:36 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Write assignment for `extrasub'; in sed - cmds, write "$extrasub" so configure.in can set it to do sed frobs. - Take second arg and write it to config.status before `exit 0'. - - * acspecific.m4 (AC_CONST): Say `checking for lack of working - const'. That is precisely accurate. - -Wed Sep 22 15:47:50 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4: If not using GNU m4, abort. - - * acgeneral.m4 (AC_PREPARE): Lose if we're not in the srcdir, - not if we're in it. But disable the check for now. - -Mon Sep 20 15:32:30 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): Check for $srcdir being configured, - diagnose and lose. - - * acgeneral.m4 (AC_QUOTE_SED): Quote @ and %. - - * acgeneral.m4 (AC_OUTPUT): Say "$file is unchanged" when it is. - -Sat Sep 18 14:32:04 1993 Ian Lance Taylor (ian@airs.com) - - * acgeneral.m4: Substitute for CONFIG_FILES and CONFIG_HEADERS - before using them, in case they have multiple values. - -Fri Sep 17 14:40:20 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_WAIT3): wait3 works if ru_stime is - nonzero, too. - -Thu Sep 16 15:39:53 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X_XMKMF): Code moved from AC_FIND_X. - (AC_FIND_X_DIRECT): New function, derived from code by Karl - Berry and Rob Savoye. - (AC_FIND_X): Call them. - -Wed Sep 15 19:06:46 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): Remove confdefs* on exit with trap 0. - (AC_OUTPUT): Don't bother removing it. - - * acgeneral.m4: Remove --no-create option; not useful. - -Mon Sep 13 21:54:46 1993 Paul Eggert (eggert@twinsun.com) - - * autoheader.sh: Rename the temporary output to the real - output if their contents differ, not if their contents are identical. - This fixes bug introduced in Aug 30 change. - -Mon Sep 13 16:50:30 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Run config.status with - CONFIG_SHELL if defined. Same for configure run from config.status. - Rename gen_files to CONFIG_FILES and gen_config to CONFIG_HEADERS. - - * acgeneral.m4 (AC_PREPARE): Remove confdefs* in trap. - -Fri Sep 10 00:29:20 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_LONG_FILE_NAMES): Test /var/tmp as well. - In loop, skip past nonexistent dirs. - - * acspecific.m4 (AC_CONST): Say "working", not "broken". We are - checking for a working const as opposed to a broken or absent - const, not for a broken const as opposed to a working one. - -Thu Sep 9 09:25:49 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4, acconfig.h (AC_LONG_64_BITS): New macro. - -Wed Sep 1 18:54:12 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PROGRAM_CHECK): Use && instead of test -a. - -Tue Aug 31 19:21:35 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT_HEADER): Support generating multiple - .h files. From gray@antaire.com (Gray Watson). - - * acspecific.m4 (AC_ALLOCA): If using alloca.o, define C_ALLOCA. - - * acgeneral.m4 (compile, AC_HEADER_EGREP, AC_PROGRAM_EGREP, - AC_COMPILE_CHECK, AC_TEST_PROGRAM, AC_TEST_CPP): Remove $DEFS - from cc and cpp command lines; include "confdefs.h" in test - files. - (AC_DEFINE): Append a #define to confdefs.h. - Reduce duplicated code by introducing a temp variable, AC_VAL. - -Mon Aug 30 17:36:54 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh: Don't write output if it is the same as output file. - -Wed Aug 25 14:14:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_VFORK): Check for SunOS 5.2 bug with ignoring - signal in parent before vfork. From eggert. - -Fri Aug 20 10:14:42 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Support giving values to --with - options. Go back to using sed for invalid test, but without - using '*' in the regex. - -Thu Aug 19 14:53:29 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_LONG_FILE_NAMES): eval the args. - - * acgeneral.m4 (AC_PARSEARGS): Use case instead of sed and - test to detect invalid package names. Remove =value from - --with options until we support it. - -Wed Aug 11 18:52:41 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X): Don't set x_includes if it's - /usr/include or x_libraries if it's /lib or /usr/lib. - -Wed Aug 11 13:00:18 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_LONG_FILE_NAMES): If we cannot write $dir, echo - a warning msg and continue the loop to skip that directory. - - * acgeneral.m4 (AC_REVISION): Also eat double quotes. - -Thu Aug 5 14:55:59 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acconfig.h: Add TIME_WITH_SYS_TIME. - -Mon Aug 2 14:55:16 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_DECLARE_YYTEXT): \-escape "s in rhs of - AC_DEFINE_UNQUOTED. - Remove gratuitous second arg to AC_SUBST. - -Sun Aug 1 19:13:08 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Define HAVE_GETLOADAVG if we find - one and don't use our own getloadavg.c. - * acconfig.h: Add HAVE_GETLOADAVG. - -Sat Jul 31 17:28:48 1993 Karl Berry (karl@cs.umb.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Report results under -v. - -Fri Jul 30 18:08:30 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh (syms, headers, funcs, libs): Run values through - sort|uniq to remove duplicates. - -Wed Jul 28 00:02:34 1993 David J. MacKenzie (djm@wookumz.gnu.ai.mit.edu) - - * Makefile.in (config.status): Run config.status --recheck, - not configure. - (install): Remove refs to install-info until it's released, - because people are getting confused. - - * acgeneral.m4 (AC_OUTPUT): For config.status --recheck, echo - the configure command line that we run. - - * acspecific.m4 (AC_PROG_FLEX): Use AC_HAVE_LIBRARY. - -Mon Jul 26 19:11:01 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Check that both -lutil and -lkvm - exist before choosing them in hopes they will define getloadavg. - - * autoheader.sh (frob): Put $2 and $3 in the expansion of - AC_HAVE_LIBRARY, so AC_DEFINE there is noticed. - -Mon Jul 26 14:21:33 1993 David J. MacKenzie (djm@wookumz.gnu.ai.mit.edu) - - * acspecific.m4 (INT_16_BITS): Check the obvious way, so it - doesn't pick up machines with 64 bit longs. - -Mon Jul 26 14:01:38 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Check for -lelf with - AC_HAVE_LIBRARY instead of checking for <elf.h> with AC_HEADER_CHECK. - -Mon Jul 26 13:58:39 1993 David J. MacKenzie (djm@wookumz.gnu.ai.mit.edu) - - * acspecific.m4 (AC_SCO_INTL, AC_IRIX_SUN, AC_DYNIX_SEQ): Use - AC_HAVE_LIBRARY. - -Mon Jul 26 13:55:17 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh (eval frob): Restore hairy sed use; we need it to - handle multi-line macro invocations. - -Mon Jul 26 00:50:43 1993 David J. MacKenzie (djm@wookumz.gnu.ai.mit.edu) - - * acspecific.m4 (AC_FIND_X): Quote the Imakefile. - -Sun Jul 25 08:17:11 1993 Jim Meyering (meyering@comco.com) - - * acconfig.h (CRAY_STACKSEG_END): New #undef. - -Thu Jul 22 20:26:12 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * Version 1.5. - - * acspecific.m4 (AC_FIND_X): Let make substitute any variables - in INCROOT and USRLIBDIR, instead of using sed. - From wojo@veritas.com (Jack Woychowski). - - * acgeneral.m4 (AC_DEFINE): When printing value verbosely, use - double quotes and AC_DEFINE_QUOTE, like we do when assigning - the value, so shell variables get expanded the same way. - - * acgeneral.m4 (AC_REVISION): New macro. - From wollman@uvm-gen.EMBA.UVM.EDU (Garrett Wollman). - - * acgeneral.m4 (AC_DEFINE): Add newline before open brace. - -Thu Jul 22 17:07:15 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STAT_MACROS_BROKEN): New macro. - * acconfig.h (STAT_MACROS_BROKEN): New #undef. - -Wed Jul 21 15:44:32 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_DECLARE_YYTEXT): Use AC_DEFINE_UNQUOTED so - shell var is replaced in rhs. - -Wed Jul 21 13:31:38 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acconfig.h (size_t, mode_t, off_t): Added. - * acspecific.m4 (AC_OFF_T): New macro. - -Tue Jul 20 15:39:44 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * autoheader.sh: Put header-file.in in comment at top. - - * acconfig.h (NDIR): Added. - -Mon Jul 19 22:10:49 1993 David J. MacKenzie (djm@churchy.gnu.ai.mit.edu) - - * Makefile.in (info, dvi): New targets. - -Sun Jul 18 22:36:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh (frob): Use `#' as the first line of each definition. - (eval frob): Totally simplify sed use to just handle "^@@@.*@@@$". - -Wed Jul 14 22:44:25 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acconfig.h: Restore blank lines between paragraphs. - - * autoheader.sh (libs): New variable and frob to set it from - AC_HAVE_LIBRARY uses. Produce #undef HAVE_* for each $libs. - -Tue Jul 13 19:03:46 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acconfig.h: Sort the entries, like the comment says. - - * acspecific.m4 (AC_GETLOADAVG): Only check for the AIX library - once, looking in both local and system dirs. - Consolidate SVR4 and Solaris cases. - -Mon Jul 12 20:33:36 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): If we find sys/dg_sys_info.h, do - AC_HAVE_LIBRARY on -ldgc. - -Sun Jul 11 00:43:51 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): BSD library is -lutil, not - -lutils, and requires -lkvm too. - Check for local AIX library using AC_HAVE_LIBRARY, not - AC_COMPILE_CHECK. - Un-nest some conditionals. Stop checking once we've - found a way to get getloadavg. - -Thu Jul 8 20:21:28 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * Makefile.in: Remove rules for making *.conf; make - Autoconf's configure script semi-normally. - -Wed Jul 7 14:37:35 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * autoheader.sh (--help): Print help message to stdout and exit 0. - (--version): Exit after printing version number. - * autoconf.sh (--version): Exit after printing version number. - - * acspecific.m4 (AC_LONG_DOUBLE): Make sure that long double - isn't smaller than double, as in Ultrix 4.[23] cc. - - * acgeneral.m4 (AC_REPLACE_FUNCS): Include ctype.h in the test - program to get stubs. - - * acspecific.m4 (AC_FIND_X): New macro. - -Tue Jul 6 19:15:17 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Try ls -L first, in case - /dev/kmem is a symlink (as on Solaris). - -Wed Jun 30 22:08:22 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_MINUS_C_MINUS_O): Remove spurious `then'. - -Fri Jun 25 23:16:42 1993 Paul Eggert (eggert@twinsun.com) - - * acspecific.m4 (AC_CONST): Replace `p = <const char** expr>' - with `ccp = <const char** expr>'; the former wasn't ANSI C, and - was causing working compilers to be rejected. - -Fri Jun 25 13:26:34 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_LONG_FILE_NAMES): Redirect rm's stderr to - /dev/null. - -Thu Jun 24 15:58:04 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * autoconf.sh, autoheader.sh, acgeneral.m4 (AC_PREPARE): Undo - change of Jun 16 1993. Only set `LANG' and `LC_ALL' to "C" if - already set. - -Sat Jun 19 00:01:51 1993 Jim Meyering (meyering@comco.com) - - * acgeneral.m4: Undefine m4's `format' builtin. - * acspecific.m4 (AC_HAVE_POUNDBANG): Make conftest executable, - but not necessarily writable by group or other. - -Thu Jun 17 21:10:33 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_CPP): Put double quotes around ${CC-cc}, - not single quotes. - If --verbose option given, say what CPP is being set to. - -Wed Jun 16 17:50:00 1993 Jim Blandy (jimb@wookumz.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_CPP): Make sure that `cc -E` doesn't - run the program through the C compiler too. Bob Olson - <olson@mcs.anl.gov> says it does on the NeXT. - -Wed Jun 16 16:17:05 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * autoconf.sh, autoheader.sh, acgeneral.m4 (AC_PREPARE): Always set - `LANG' and `LC_ALL' environment variables to `C'. - -Fri Jun 11 14:29:31 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_MINUS_C_MINUS_O): Test that cc works at all, - and only test it for -c -o if it does. - -Tue Jun 8 01:47:22 1993 Paul Eggert (eggert@twinsun.com) - - * acgeneral.m4 (AC_OUTPUT): The line - DEFS="`echo \"$DEFS\" | sed 's%[&\\\]%\\\&%g'`" - doesn't work in some shells, which don't allow nesting - \"\" inside `` inside "", and which don't unescape \\\& in the - expected (?) way. Also, some versions of echo interpret - backslashes inside $DEFS. Put $DEFS into a temporary file - to avoid these portability minefields. - -Mon Jun 7 20:11:50 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): In setting KMEM_GROUP, use new sed - magic from friedman which should win with both meanings of ls -lg. - -Mon Jun 7 06:48:49 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * Makefile.in (dist): Change gzipped tar file extension to `.gz'. - Use explicit --gzip option to tar to make sure tar uses the right - compression program (or else exits from failure to understand the - option). - - * acgeneral.m4 (AC_OUTPUT): Don't split sed expr for exec_prefix - across two lines, since not all versions of sed understand that. - - * acspecific.m4 (AC_HAVE_POUNDBANG): Complete rewrite which doesn't - depend on csh. - -Tue Jun 1 03:06:28 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * Version 1.4.1 (not announced to the general public, but - a snapshot was put on the June '93 GNU CDROM). - - * Makefile.in (dist): If ln fails (e.g. because of cross-device - links), mention on stdout that file is being copied. - - * acgeneral.m4 (AC_PREPARE): Use `[$]*' in assignment to - configure_args to get shell positional args, rather than m4 args to - AC_PREPARE. - (AC_OUTPUT): Use `configure_args' in config.status - when invoked with --recheck, rather than $*. - -Mon May 31 13:12:56 1993 Paul Eggert (eggert@twinsun.com) - - * acspecific.m4 (AC_LONG_FILE_NAMES): rm $dir/conftest*, - not conftest*. - -Mon May 31 04:18:18 1993 Roland McGrath (friedman@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_HAVE_LIBRARY): Quote libname in define. - -Sun May 30 19:52:24 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_SETVBUF_REVERSED): Pass (char *) main to - setvbuf instead of zero. - -Thu May 27 20:30:53 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREPARE): Save $* in shell var `configure_args'. - (AC_OUTPUT): Use $configure_args in place of $*. - -Wed May 26 16:19:51 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * autoconf.texi (AC_PROG_INSTALL): Doc fix. - (Automatic Remaking): Put code fragment in @example ... @end example. - -Mon May 24 15:46:47 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh (frob): Redefine AC_CONFIG_HEADER to set shell - variable `config_h'. - (config_h): New variable, initialize to "config.h" before frobbing. - (final output): Write ${config_h}.in. - -Sat May 22 17:45:19 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * Version 1.4 released. - -Thu May 20 20:25:45 1993 Jim Blandy (jimb@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_IDENTITY): New function. - (AC_DEFINE_UNQUOTED): Use it to fix this; due to a - misunderstanding of m4, this was using its first argument as - the definition. - -Thu May 20 09:21:55 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_ALLOCA) [find_stack_direction]: Return the - value from the recursive call. If it worked before, it was by luck. - From Bruno Haible <haible@ma2s2.mathematik.uni-karlsruhe.de>. - -Tue May 18 23:40:21 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STDC_HEADERS): Require AC_PROG_CPP. - -Mon May 17 18:01:09 1993 Karl Berry (karl@hal.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Use variables gen_files and - gen_config in the loop that generates the output (Make)files, - instead of hardwiring the filenames. - -Sat May 15 17:23:19 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * autoconf.sh: Accept `-' to mean read stdin as input. - * autoheader.sh: Likewise. - -Fri May 14 12:41:02 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * autoheader.sh, acspecific.m4 (AC_PREPARE): If `LANG' environment - variable is set, reset its value to `C'. This is so `tr [...]' - works more portably. - -Thu May 13 22:56:20 1993 Paul Eggert (eggert@twinsun.com) - - * acspecific.m4 (VOID_CLOSEDIR): Test closedir instead of assuming - that it works. E.g. dynix closedir yields garbage, but has no - prototype. Presumably Xenix closedir had the same problem, so - stop special-casing it. - -Wed May 12 20:25:36 1993 Jim Meyering (meyering@comco.com) - - * acconfig.h: Add HAVE_LONG_DOUBLE. - -Wed May 12 15:07:36 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE_UNQUOTED): New macro. - - * acgeneral.m4 (AC_FUNC_CHECK): Include ctype.h instead of stdio.h. - We want it only to define __stub_* in glibc. Using stdio.h lost - when it contained a conflicting prototype for $1; ctype.h has fewer - prototypes. - - * acconfig.h: Add GETGROUPS_T. - - * acspecific.m4 (AC_PROG_RANLIB): Use : instead of @: for no-op. - Some braindead make does bizarre magical things with @ in variables. - -Mon May 10 14:24:27 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_HAVE_POUNDBANG): New feature. - - * acgeneral.m4 (AC_OUTPUT): Add more backslashes to character class - in DEFS filter (sigh). - -Sun May 9 14:04:31 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE_QUOTE): No AC_QUOTE_SED (was innermost). - (AC_HEADER_EGREP, AC_PROGRAM_EGREP, AC_TEST_CPP): Put a \ before - $DEFS in string to be evalled. - (AC_OUTPUT): Run DEFS through a sed filter that quotes things in it - from sed (woo woo!) before writing it into config.status. - - * acspecific.m4 (AC_ALLOCA): Use AC_PROGRAM_EGREP to test for [CRAY - && !CRAY2], instead of AC_TEST_PROGRAM. No need to run a program - for this. - - * acgeneral.m4 (AC_PROGRAM_CHECK): Extract the first word of $2 - when looking for it in PATH, so it can be a program name with args. - Omit default assignment if $4 is empty. - Only write verbose msg if $1 was set nonempty. - * acspecific.m4 (AC_PROG_YACC): Pass 'bison -y' (quoted like that) - in list to AC_PROGRAMS_CHECK. Don't test for bison later to add -y - flag. - -Sat May 8 00:23:58 1993 Jim Meyering (meyering@comco.com) - - * acgeneral.m4 (AC_REPLACE_FUNCS): Add a trailing newline in - code for AC_COMPILE_CHECK. Otherwise it got spurious failures. - - * acspecific.m4 (TIME_WITH_SYS_TIME): New macro. - - * Makefile.in (dist): Depend on Makefile. Use gzip instead - of compress. Link files individually instead of en masse; - if a link fails, use `cp -f' on the losing file. - - * acspecific.m4 (AC_ALLOCA): Define CRAY_STACKSEG_END (the - name of a function used in alloca.c) for CRAY-1, CRAY X-MP, - and CRAY Y-MP. - -Fri May 7 15:56:26 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Check for mach/mach.h, but don't - disable nlist checks if found. - -Fri May 7 04:59:25 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Don't look for `install' in - /usr/ucb. - -Thu May 6 20:41:35 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_FUNC_CHECK): The test program should choke on - #ifdef __stub___$1 as well. - (AC_REPLACE_FUNCS): Make the test program choke on stubs. - -Wed May 5 20:43:13 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoconf.sh ($infile existence check): Fixed test for - nonemptiness of $print_version to not always be true. - -Wed May 5 17:22:42 1993 David J. MacKenzie (djm@wookumz.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PREFIX, AC_PROGRAM_CHECK), acspecific.m4 - (AC_PROG_INSTALL): If IFS wasn't set initially, give it a - normal default value. Happens on LynxOS (x86), says - Pete Klammer <PKLAMMER@cudnvr.denver.colorado.edu>. - -Wed May 5 13:22:52 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4: Undefine the `shift' builtin. - - * acspecific.m4 (AC_PROG_YACC): Use AC_PROGRAMS_CHECK to check for - both bison and yacc, instead of two AC_PROGRAM_CHECK uses. - - * autoheader.sh ($# -eq 0): Set var $tmpout to name of temp file, - send stdout there instead of config.h.in. - (just before exit): If $# -eq 0, then move $tmpout to config.h.in - if $status -eq 0, or remove $tmpout otherwise. - - * acspecific.m4 (AC_STRCOLL): Rewritten to use a test program that - verifies that `strcoll' does vaguely reasonable ordering. - -Tue May 4 19:59:00 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_LONG_DOUBLE): Don't explicitely echo - `checking for long double'. - -Mon May 3 22:04:35 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_GETGROUPS_T): New macro. - -Sat May 1 22:37:55 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_LONG_DOUBLE): New macro. - -Wed Apr 28 15:52:42 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PROGRAM_CHECK): Write msg under --verbose. - -Thu Apr 22 18:24:40 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_FUNC_CHECK): Remove spurious `#endif' line at end. - - * acgeneral.m4 (AC_WITH): Fix reversed args to patsubst. - Test $with_FOO, not $FOO. - -Wed Apr 21 18:14:19 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_QUOTE_TOKEN): New macro. - (AC_DEFINE_QUOTE): Use it. - -Tue Apr 20 18:02:46 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_DECLARE_YYTEXT): Guess name of lex output file - and do AC_SUBST of `LEX_OUTPUT_ROOT'. - Add `dnl' after calling some autoconf macros. - -Mon Apr 19 15:46:24 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_MINUS_C_MINUS_O): Do each compile a second time - after testing for the existence of the output. Some compilers - refuse to overwrite an existing .o file with -o, though they will - create one. - - * acspecific.m4 (AC_DECLARE_YYTEXT): Changed lex input to two lines - of "%%", not just one. - -Sat Apr 17 17:26:12 1993 Jim Meyering (meyering@comco.com) - - * acgeneral.m4 (AC_COMPILE_CHECK): Don't print `checking for ...' - message if first argument is empty. - -Sat Apr 17 01:18:41 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PID_T): provide self. - (AC_VFORK): Require AC_PID_T. - -Fri Apr 16 11:57:35 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PROGRAMS_CHECK): Take optional third arg; if - given, use it as the default value. - -Thu Apr 15 16:43:45 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_REPLACE_FUNCS): Print a message under --verbose. - - * acgeneral.m4 (AC_HAVE_LIBRARY): Use m4's patsubst and translit - instead of running sed and tr at runtime. - - * acconfig.h: Add STACK_DIRECTION. - -Wed Apr 14 17:08:47 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_ALLOCA): If we chose alloca.c, run a test - program to define STACK_DIRECTION. - -Mon Apr 5 19:02:52 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_LONG_FILE_NAMES): Put test inside a for loop on - several directories: . /tmp $prefix $exec_prefix. Define - HAVE_LONG_FILE_NAMES iff long names win in all those directories. - -Sun Apr 4 18:38:23 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * Makefile.in (%.info): Removed pattern rule. - (autoconf.info, standards.info): New rules. - - * autoconf.sh (version_only): New variable, set nonempty for - `autoconf --version' with no input file. - (output writing): No output if $version_only is set. - -Wed Mar 31 17:33:57 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_CONST): Uncomment and fix second AIX test. - -Wed Mar 31 16:58:12 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_CONST): Rewrite first AIX XL C 1.02.0.0 test. - Comment out bogosity in second AIX test. - -Wed Mar 31 12:45:59 1993 Jim Meyering (meyering@comco.com) - - * acgeneral.m4 (AC_DEFINE): Put single quotes around definition - that is echoed with --verbose. AC_DEFINE(MVDIR, "$(libdir)/mvdir") - was generating losing code. - -Mon Mar 29 15:44:24 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STDC_HEADERS): Add a missing pair of [quotes]. - -Mon Mar 29 14:54:00 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_DECLARE_YYTEXT): Change sed regexp so it won't - match other identifiers beginning with `yytext'. - -Sat Mar 27 00:11:16 1993 Paul Eggert (eggert@twinsun.com) - - * acspecific.m4 (AC_CONST): Detect broken AIX XL C 1.2.0.0 compiler. - -Thu Mar 25 19:54:50 1993 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_CONST): Remove single quotes from the C - program; they produce shell syntax errors. - - * acgeneral.m4 (AC_DEFINE): Add a newline after "}" to prevent - commands following on the same line of configure.in from - generating shell syntax errors. - - * acgeneral.m4 (AC_COMPILE_CHECK): Use explicit return types - to avoid warnings. - (AC_TEST_CPP): Add parens to force redirection order. - (AC_OUTPUT): Allow hostname to return bogus exit status. - From Jean-loup Gailly <jloup@chorus.fr>. - -Mon Mar 22 16:53:01 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoconf.sh: Use $M4, not m4 explicitly. - (M4): If unset in env, initialize to @m4@. - * autoheader.sh: Likewise. - * Makefile.in (M4): Define new variable. - (autoconf.conf, %.conf): Use it. - (editsh): New variable: sed command to replace @datadir@; also - replace @M4@ with $(M4). - (autoconf, autoheader): Use $(editsh) instead of explicit sed command. - -Mon Mar 22 13:08:10 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_CONST): IBM's /bin/cc under AIX-3.2 on an rs6000 - rejects attempts to modify *any* member of a struct that has a - member declared like `const int *ap[2]'. - -Wed Mar 17 18:08:30 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * autoconf.sh, autoheader.sh (MACRODIR): Variable renamed to - AC_MACRODIR. Don't initialize it at runtime if it is already set - in the environment. - (MACROFILES): Don't set until after options are processed. - (print_version): New temp variable. - - * autoconf.sh, autoheader.sh: Rewrote argument parsing. - Added `-m', `--macrodir', `-h', `--help', and `--' options. - Updated usage string. - - * autoconf.texi: Documented --macrodir option and its effects for - both scripts. - -Tue Mar 16 09:10:48 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_CONST): Sun's SC1.0 ANSI compiler (acc) won't - increment a `const int *' pointer declared through a typedef. - -Mon Mar 15 16:08:42 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Grok `--verbose' flag; set verbose=yes. - (AC_DEFINE): Only echo "defining $1" if $verbose is set. - -Sun Mar 14 18:19:21 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Choose `installbsd' if we find - it, in preference to `install'. - - * acspecific.m4 (AC_CONST): Add a check for `const int *foo' not - allowing modification of FOO (not *FOO). - -Fri Mar 12 15:27:53 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT_HEADER): Remove conftest.sh before - creating it. - -Thu Mar 11 12:57:53 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE): Surround defn with { and }. - - * acgeneral.m4 (AC_OUTPUT_HEADER): Split up $SEDDEFS into smaller - chunks, since some shells can't handle large here documents. - We write several commands in config.status to create conftest.sed - in pieces. - -Mon Mar 8 14:40:53 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_WITH): Don't echo anything. - Use the m4 patsubst fn instead of a run-time sed invocation to - massage $1. - - * acspecific.m4 (AC_DIR_HEADER_CHECK): #include <sys/types.h> - before the header we are testing. - - * acgeneral.m4 (AC_DEFINE): If $2 is empty, echo "defining $1 to be - empty", rather than "defining $1 to be ". - - * acspecific.m4 (AC_DIR_HEADER_CHECK): New; subr of AC_DIR_HEADER. - (AC_DIR_HEADER): Use it to test for each possible header file. - -Tue Mar 2 01:06:25 1993 Noah Friedman (friedman@nutrimat.gnu.ai.mit.edu) - - * autoheader.sh: Don't use /p1/,/p2/ construct with sed---it's not - portable. Handle broken AIX sed that strips \n from hold space - when it shouldn't. From Jun Hamano <junio@twinsun.com>. - -Tue Mar 02 00:08:39 1993 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_CONST): Fix typo that caused spurious lossage - with /bin/cc from Irix-4. From Karl Berry. - -Fri Feb 26 17:14:58 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_CONST): Add bizarre case that loses on SCO 3.2v4. - -Mon Feb 22 13:02:27 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_QUOTE_HERE, AC_QUOTE_SED): Change the quote - chars to { and } instead of nothing. Then use {} (empty quotes) to - separate the patsubst forms from the following dnl. Otherwise the - result of patsubst is pasted together with dnl and the result is - seen as a single token. - - * acspecific.m4 (AC_MINUS_C_MINUS_O): Print msg saying what we are - doing before we do it. - - * acgeneral.m4 (AC_PREFIX): Print out the choice made. - (AC_DEFINE): Print out the definition being done. - - * acgeneral.m4 (AC_DEFINE_QUOTE): Add dnl at end of line. - - * acspecific.m4 (AC_GETLOADAVG): Do changequote around listing of - /dev/kmem and sed frobbing which needs to use [ and ]. - -Sun Feb 21 13:57:55 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh: Use brackets in tr range args. - - * acspecific.m4 (AC_SETVBUF_REVERSED): Make the test fail if - setvbuf returns nonzero. - - * acspecific.m4 (AC_GETLOADAVG): If we need to install setgid, - figure out what group owns /dev/kmem, and set KMEM_GROUP to that. - - * acspecific.m4 (AC_MINUS_C_MINUS_O): Test plain `cc' after testing - $CC. We want to make sure both compilers grok -c -o. - -Thu Feb 18 18:05:14 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_QUOTE_{DQUOTE,SQUOTE,HERE,SED}): New macros. - (AC_DEFINE_{QUOTE,SEDQUOTE}): New macros; subrs of AC_DEFINE. - (AC_DEFINE): Use them to quote $2. - -Wed Feb 17 14:49:14 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_TIMEZONE): Fixed quoting in tzname check. - changequote inside quotes lost. - -Mon Feb 8 14:22:11 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acconfig.h (_ALL_SOURCE): Use #ifndef; AIX compiler way too dumb. - -Sun Jan 31 16:39:46 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_TIMEZONE): Put newlines before `#include ...' - in $defs value. - -Thu Jan 28 18:06:53 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acconfig.h (_ALL_SOURCE): Use "!defined (_ALL_SOURCE) || - _ALL_SOURCE == 0" rather than "!_ALL_SOURCE", which bombs on the - AIX compiler. - -Mon Jan 25 12:09:43 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acconfig.h (HAVE_UNION_WAIT, SYS_SIGLIST_DECLARED): New #undef's. - - * acconfig.h (_ALL_SOURCE): Surround with #if !_ALL_SOURCE. - -Fri Jan 22 15:08:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): If /usr/local/lib/libgetloadavg.a - exists, add -L/usr/local/lib to LDFLAGS. - -Fri Jan 22 12:49:11 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT_HEADER): Only comment out the #undef NAME - part of the line, to avoid causing errors from existing comments. - -Thu Jan 21 14:50:20 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_HAVE_LIBRARY): Use $libname in "checking for" - message, not $1, to avoid "checking for -l-lfoo". - - * acgeneral.m4 (AC_PREPARE): In compile defn, include $CFLAGS. - - * acgeneral.m4 (AC_OUTPUT): Broke AC_CONFIG_NAME writing out into: - (AC_OUTPUT_HEADER): New macro broken out of AC_OUTPUT. - Add to conftest.sed a new sed command to turn #undef's into comments. - - * acgeneral.m4 (AC_OUTPUT): Use new shell variable, $maxsedlines, - for max number of lines to feed to one sed invocation. - Lower this limit to 20; UTekV 3.2e can't cope with 40. - -Tue Jan 19 13:21:02 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * Version 1.3. - -Fri Jan 15 16:28:18 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_CONFIG_HEADER, AC_HEADER_EGREP, - AC_TEST_PROGRAM): Make DEFS always contain -D commands, - not C code. - -Thu Jan 14 17:05:17 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Check for -lkvm; don't assume it. - -Thu Jan 14 16:46:41 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh (selecting $syms from $TEMPLATES): Use sed to - replace lines containing only blanks with empty lines. - -Thu Jan 14 15:15:31 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_MODE_T): New macro. - - * acgeneral.m4 (AC_OUTPUT): Check for grep -c returning - nothing (AIX 3.1) as well as returning 0. - -Wed Jan 13 16:05:59 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_FUNC_CHECK): Add missing #endif. - - * acgeneral.m4 (AC_OUTPUT): Use sed, not basename. - From Francois Pinard. - -Wed Jan 13 15:49:18 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Set exec_prefix to ${prefix}, not - $(prefix); it now works in both makefiles and shell scripts. - -Wed Jan 13 15:29:04 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * autoheader.sh: If input is empty, don't print all of - acconfig.h. From Francois Pinard. - - * acgeneral.m4 (AC_OUTPUT): Have config.status check all of its - args for validity. - -Tue Jan 12 11:11:45 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Preserve whitespace around = in prefix - and exec_prefix assignments. - - * acspecific.m4 (AC_GETLOADAVG): Values for getloadavg_missing were - reversed. - -Fri Jan 8 18:45:59 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Make config.status not complain with - usage msg when given no args. - - * acgeneral.m4 (AC_HAVE_LIBRARY): Say "checking for -lfoo", not - just "checking for foo". - - * acgeneral.m4 (AC_HAVE_LIBRARY): Remove excess quoting around $2 - and $3. - - * acspecific.m4 (AC_GETLOADAVG): Check for getloadavg library, both - a normally installed one, and one in /usr/local/lib. - After figuring out params for getloadavg.c, figure out whether it - defined LDAV_PRIVILEGED, and if so, set NEED_SETGID to true, and - define GETLOADAVG_PRIVILEGED. - * acconfig.h: Added GETLOADAVG_PRIVILEGED. - -Fri Jan 8 16:16:35 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE, AC_OUTPUT): Restore the third sed string. - - * acgeneral.m4 (AC_FUNC_CHECK): Use __stub_funcname. - - * autoheader.sh: Use Autoconf version number. - - * acgeneral.m4 (AC_OUTPUT): Diagnose usage errors for - config.status. Use grep -c to count nonempty lines instead of - test -s. - - * acspecific.m4 (AC_GETLOADAVG): Use AC_HAVE_LIBRARY. - -Wed Jan 6 19:54:47 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * autoheader.sh (coverage check): Use $TEMPLATES in error msg, not - hard-wired "config.h". - -Wed Jan 6 18:24:41 1993 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): If AC_CONFIG_NAME, change - @DEFS@ to -DHAVE_CONFIG_H in Makefiles etc. Idea from Roland McGrath. - - * acgeneral.m4 (AC_FUNC_CHECK): If __STUB_funcname is defined, - assume the function isn't present. - - * acgeneral.m4 (AC_OUTPUT): Make no args to AC_OUTPUT work - again. From Ian Lance Taylor. - - * acspecific.m4 (AC_CONST): Fix quoting problem. - - * acconfig.h [const]: New addition. - -Thu Dec 31 17:56:18 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_HAVE_LIBRARY): New macro from Noah Friedman. - - * acconfig.h: Renamed from config.h. - - * autoheader.sh: Renamed from autohead.sh. - Support a local acconfig.h. - Use \\012 instead of \\n for tr for portability. - -Thu Dec 31 12:30:34 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * config.h: Added #undef vfork. - -Tue Dec 29 14:26:43 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_COMPILE_CHECK): Use cat rather than echo to - create conftest.c, to avoid " problems. - -Fri Dec 25 15:07:06 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_CONST): Don't define HAVE_CONST. - - * acgeneral.m4 (AC_OUTPUT, AC_DEFINE): Combine the two sed - commands for #undef lines. - * acgeneral.m4 (AC_PROGRAM_EGREP, AC_TEST_PROGRAM, - AC_TEST_CPP, AC_OUTPUT), acspecific.m4 (AC_PROG_CC): Put > - before << when using both, to avoid HP-UX sh bug. - -Wed Dec 23 20:47:53 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Use if, not &&, for --with. - From Jan Brittenson. - -Mon Dec 21 17:13:57 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Use sed instead of head and tail. - Trap to remove the temp files. - - * acgeneral.m4 (AC_OUTPUT): Quote DEFS assignment. - From Ian Lance Taylor. - -Mon Dec 21 14:27:44 1992 Jim Meyering (meyering@comco.com) - - * acspecific.m4 (AC_STDC_HEADERS): Make sure ctype.h macros - are ANSI. Nest tests so we don't need shell temporary variable. - -Sun Dec 20 18:12:33 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu) - - * Makefile.in (%.h: %.in): New rule using autohead. - (all): Do autohead. - (install): Install autohead and config.h. - (autohead): New rule. - (DISTFILES): Added autohead.sh. - * autohead: New script. - -Fri Dec 18 00:21:23 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_HAVE_FUNCS, AC_HAVE_HEADERS): Change method - of tr quoting to keep old shells happy. From Ian Lance Taylor. - - * acgeneral.m4 (AC_DEFINE): Add to SEDDEFS. - (AC_OUTPUT): Use sed instead of awk. - From Ian Lance Taylor. - -Mon Dec 14 14:33:29 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STDC_HEADERS): Check for string.h - declaring memchr. - - * acgeneral.m4 (AC_NOTICE): Fix comment. - -Fri Dec 11 17:59:23 1992 David J. MacKenzie (djm@kropotkin.gnu.ai.mit.edu) - - * acspecific.m4 (AC_ALLOCA): Don't use libPW; it causes too - much trouble. - -Wed Dec 9 14:04:30 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * config.h: Added HAVE_SYS_WAIT, HAVE_WAITPID, SVR4, UMAX, - [ugp]id_t, UMAX4_3, DGUX. - -Thu Dec 3 13:37:17 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_INSTALL): Ignore AFS install. - From James Clark, jjc@jclark.com. - -Tue Nov 24 07:47:45 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_LEX, AC_DECLARE_YYTEXT, AC_VFORK, AC_WAIT3, - AC_INT_16_BITS, AC_WORDS_BIGENDIAN, AC_ARG_ARRAY): End with a newline. - - * acspecific.m4 (AC_DIR_HEADER): If ndir.h exists and the other - choices don't, define NDIR. - -Sat Nov 21 00:14:51 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_RETSIGTYPE): Instead of grepping for the signal - declaration, try redeclaring it and see if we get an error. - Always define RETSIGTYPE, not just if it's int. - From Ian Lance Taylor. - -Fri Nov 20 17:06:09 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE): Only put -D option in quotes if it - actually contains blanks. - -Thu Nov 19 17:18:40 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): Set a shell var for --with-*. - (AC_WITH): New macro. - - * acspecific.m4 (AC_CONST): If const works, define HAVE_CONST. - - * acspecific.m4 (AC_ALLOCA): Don't use libPW on HP-UX. - -Wed Nov 18 17:36:08 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_DEFINE): When writing a -D with a value, - surround it with 's so the value can contain spaces. - -Thu Nov 12 22:49:35 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_PROG_CC): Don't add -O to CC if GNU C. - (-O2, or nothing, might be more appropriate.) - -Sun Nov 8 23:33:23 1992 david d `zoo' zuhn (zoo at cirdan.cygnus.com) - - * acspecific.m4 (AC_GETLOADAVG): Check for dwarf.h for general - svr4, then elf.h for Solaris 2, which needs additional libraries. - -Thu Nov 12 22:18:54 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS): --exec_prefix -> --exec-prefix. - -Tue Nov 10 16:15:10 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4: undef m4 `include' builtin. - - * acspecific.m4 (AC_STDC_HEADERS): Don't test for limits.h - due to Ultrix conflict with float.h. - -Thu Oct 29 16:16:11 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_PARSEARGS, AC_PREPARE): New macros, broken out - parts of AC_INIT. - (AC_INIT): Use them. - -Thu Oct 22 20:48:12 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_INSTALL): Comment out arg to `:'. - AIX doesn't like it. - -Wed Oct 14 12:41:02 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * Version 1.2. - - * acspecific.m4 (AC_INSTALL): Avoid the AIX install script. - - * acspecific.m4 (AC_RESTARTABLE_SYSCALLS): Wait for child if - sys calls are not restarted, to avoid leaving the child still - running. From Ian Lance Taylor. - -Tue Oct 13 15:43:56 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acspecific.m4 (AC_CONST): Add more tests for brokenness. - From Jim Meyering. - - * acgeneral.m4: Use % instead of ? to avoid shell variable expansion. - -Fri Oct 2 06:55:05 1992 David J. MacKenzie (djm@goldman.gnu.ai.mit.edu) - - * acgeneral.m4: Use ? instead of , to separate parts of sed arg. - -Mon Sep 14 12:33:41 1992 David J. MacKenzie (djm@apple-gunkies.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STDC_HEADERS): Also check for float.h. - - * acspecific.m4 (AC_TIMEZONE): Protect [] from being quotes. - -Thu Sep 10 17:12:10 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_OUTPUT): Include the hostname in config.status. - - * acgeneral.m4 (AC_OUTPUT): Use a separate flag in the awk - script instead of checking for non-empty values, so things - like defining const as empty work. From - Steve Emmerson <steve@unidata.ucar.edu>. - -Fri Aug 28 18:51:13 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_INIT): If there's no path on $0, use '.'. - -Thu Aug 27 16:15:14 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * config.h: New file. - - * acgeneral.m4 (AC_INIT): Look for source files in the - directory containing `configure', if not given explicitly. - - * acspecific.m4 (AC_TIMEZONE): Adjust tzname decl for RS6000. - - * acspecific.m4 (AC_GETLOADAVG): Don't use double quotes in - the test program. - -Thu Aug 27 15:26:49 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): Don't check nlist.h if we found - one of specific things. - -Mon Aug 24 16:22:45 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Version 1.1. - - * acspecific.m4 (AC_TIMEZONE): Include time.h. Don't - declare tzname if it's a macro. From Jim Meyering. - -Fri Aug 21 14:12:35 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acspecific.m4 (AC_ALLOCA): Check whether the alloca defined by - alloca.h works when given a non-constant argument. - - * acspecific.m4 (AC_GETLOADAVG): Define NLIST_STRUCT and - NLIST_NAME_UNION if appropriate. - - * acgeneral.m4 (AC_OUTPUT): If no args are given, omit the loop to - produce output files. - - * acgeneral.m4 (AC_TEST_PROGRAM): Add a call to exit to try to - suppress core dumped message. From Ian Lance Taylor. - - * acgeneral.m4 (AC_PREFIX): Only print the message if prefix - hasn't been set. From James Clark. - - * acspecific.m4 (AC_SIZE_T, AC_UID_T, AC_PID_T, - AC_RETSIGTYPE): Print a message saying what it's checking for. - (AC_SIZE_T): Define size_t to be unsigned, not int, for - ANSI-friendliness. - - * acspecific.m4 (AC_GETLOADAVG): Just check for elf.h, not - dwarf.h too. - - * autoconf.sh: Exit with status 1 if there are unresolved macros. - Isolate the pattern to make adding other prefixes easy. - Look for aclocal.m4 in . as well as MACRODIR. - -Tue Aug 18 16:35:46 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_STRCOLL): New macro. - -Tue Aug 18 15:22:45 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu) - - * acspecific.m4 (AC_GETLOADAVG): elf.h implies SVR4. - -Mon Jul 27 14:20:32 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_TEST_PROGRAM): Check for cross-compiling - was missing "test -n". From Ian Lance Taylor. - -Sun Jul 26 16:25:19 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * acgeneral.m4 (AC_SUBST): Support multiple substitutions in a - line. - -Mon Jul 20 01:08:01 1992 David J. MacKenzie (djm@nutrimat.gnu.ai.mit.edu) - - * Version 1.0. diff --git a/util/autoconf/INSTALL b/util/autoconf/INSTALL deleted file mode 100644 index 0338fbc..0000000 --- a/util/autoconf/INSTALL +++ /dev/null @@ -1,167 +0,0 @@ -Basic Installation -================== - - These are generic installation instructions. - - The `configure' shell script attempts to guess correct values for -various system-dependent variables used during compilation. It uses -those values to create a `Makefile' in each directory of the package. -It may also create one or more `.h' files containing system-dependent -definitions. Finally, it creates a shell script `config.status' that -you can run in the future to recreate the current configuration, a file -`config.cache' that saves the results of its tests to speed up -reconfiguring, and a file `config.log' containing compiler output -(useful mainly for debugging `configure'). - - If you need to do unusual things to compile the package, please try -to figure out how `configure' could check whether to do them, and mail -diffs or instructions to the address given in the `README' so they can -be considered for the next release. If at some point `config.cache' -contains results you don't want to keep, you may remove or edit it. - - The file `configure.in' is used to create `configure' by a program -called `autoconf'. You only need `configure.in' if you want to change -it or regenerate `configure' using a newer version of `autoconf'. - -The simplest way to compile this package is: - - 1. `cd' to the directory containing the package's source code and type - `./configure' to configure the package for your system. If you're - using `csh' on an old version of System V, you might need to type - `sh ./configure' instead to prevent `csh' from trying to execute - `configure' itself. - - Running `configure' takes awhile. While running, it prints some - messages telling which features it is checking for. - - 2. Type `make' to compile the package. - - 3. Optionally, type `make check' to run any self-tests that come with - the package. - - 4. Type `make install' to install the programs and any data files and - documentation. - - 5. You can remove the program binaries and object files from the - source directory by typing `make clean'. To also remove the files - that `configure' created (so you can compile the package for a - different kind of computer), type `make distclean'. - -Compilers and Options -===================== - - Some systems require unusual options for compilation or linking that -the `configure' script does not know about. You can give `configure' -initial values for variables by setting them in the environment. Using -a Bourne-compatible shell, you can do that on the command line like -this: - CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure - -Or on systems that have the `env' program, you can do it like this: - env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure - -Using a Different Build Directory -================================= - - You can compile the package in a different directory from the one -containing the source code. Doing so allows you to compile it on more -than one kind of computer at the same time. 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Future releases of those packages will have -updated configure.in files. - -It's best to use GNU m4 1.3 (or later) with Autoconf version 2. -Autoconf now makes heavy use of m4 diversions, which were implemented -inefficiently in GNU m4 releases before 1.3. - -Major changes in release 2.0: - -** New copyright terms: -* There are no restrictions on distribution or use of configure scripts. - -** Documentation: -* Autoconf manual is reorganized to make information easier to find - and has several new indexes. -* INSTALL is reorganized and clearer and is now made from Texinfo source. - -** New utilities: -* autoscan to generate a preliminary configure.in for a package by - scanning its source code for commonly used nonportable functions, - programs, and header files. -* ifnames to list the symbols used in #if and #ifdef directives in a - source tree. -* autoupdate to update a configure.in to use the version 2 macro names. -* autoreconf to recursively remake configure and configuration header - files in a source tree. - -** Changed utilities: -* autoheader can take pieces of acconfig.h to replace config.h.{top,bot}. -* autoconf and autoheader can look for package-local definition files - in an alternate directory. - -** New macros: -* AC_CACHE_VAL to share results of tests between configure runs. -* AC_DEFUN to define macros, automatically AC_PROVIDE them, and ensure - that macros invoked with AC_REQUIRE don't interrupt other macros. -* AC_CONFIG_AUX_DIR, AC_CANONICAL_SYSTEM, AC_CANONICAL_HOST, AC_LINK_FILES to - support deciding unguessable features based on the host and target types. -* AC_CONFIG_SUBDIRS to recursively configure a source tree. -* AC_ARG_PROGRAM to use the options --program-prefix, - --program-suffix, and --program-transform-name to change the names - of programs being installed. -* AC_PREFIX_DEFAULT to change the default installation prefix. -* AC_TRY_COMPILE to compile a test program without linking it. -* AC_CHECK_TYPE to check whether sys/types.h or stdlib.h defines a given type. -* AC_CHECK_LIB to check for a particular function and library. -* AC_MSG_CHECKING and AC_MSG_RESULT to print test results, on a single line, - whether or not the test succeeds. They obsolete AC_CHECKING and AC_VERBOSE. -* AC_SUBST_FILE to insert one file into another. -* AC_FUNC_MEMCMP to check whether memcmp is 8-bit clean. -* AC_FUNC_STRFTIME to find strftime even if it's in -lintl. -* AC_FUNC_GETMNTENT to find getmntent even if it's in -lsun or -lseq. -* AC_HEADER_SYS_WAIT to check whether sys/wait.h is POSIX.1 compatible. - -** Changed macros: -* Many macros renamed systematically, but old names are accepted for - backward compatibility. -* AC_OUTPUT adds the "automatically generated" comment to - non-Makefiles where it finds @configure_input@ in an input file, to - support files with various comment syntaxes. -* AC_OUTPUT does not replace "prefix" and "exec_prefix" in generated - files when they are not enclosed in @ signs. -* AC_OUTPUT allows the optional environment variable CONFIG_STATUS to - override the file name "config.status". -* AC_OUTPUT takes an optional argument for passing variables from - configure to config.status. -* AC_OUTPUT and AC_CONFIG_HEADER allow you to override the input-file names. -* AC_OUTPUT automatically substitutes the values of CFLAGS, CXXFLAGS, - CPPFLAGS, and LDFLAGS from the environment. -* AC_PROG_CC and AC_PROG_CXX now set CFLAGS and CXXFLAGS, respectively. -* AC_PROG_INSTALL looks for install-sh or install.sh in the directory - specified by AC_CONFIG_AUXDIR, or srcdir or srcdir/.. or - srcdir/../.. by default. -* AC_DEFINE, AC_DEFINE_UNQUOTED, and AC_SUBST are more robust and smaller. -* AC_DEFINE no longer prints anything, because of the new result reporting - mechanism (AC_MSG_CHECKING and AC_MSG_RESULT). -* AC_VERBOSE pays attention to --quiet/--silent, not --verbose. -* AC_ARG_ENABLE and AC_ARG_WITH support whitespace in the arguments to - --enable- and --with- options. -* AC_CHECK_FUNCS and AC_CHECK_HEADERS take optional shell commands to - execute on success or failure. -* Checking for C functions in C++ works. - -** Removed macros: -* AC_REMOTE_TAPE and AC_RSH removed; too specific to tar and cpio, and - better maintained with them. -* AC_ARG_ARRAY removed because no one was likely using it. -* AC_HAVE_POUNDBANG replaced with AC_SYS_INTERPRETER, which doesn't - take arguments, for consistency with all of the other specific checks. - -** New files: -* Comes with config.sub and config.guess, and uses them optionally. -* Uses config.cache to cache test results. An alternate cache file - can be selected with the --cache-file=FILE option. -* Uses optional shell scripts $prefix/share/config.site and - $prefix/etc/config.site to perform site or system specific initializations. -* configure saves compiler output to ./config.log for debugging. -* New files autoconf.m4 and autoheader.m4 load the other Autoconf macros. -* acsite.m4 is the new name for the system-wide aclocal.m4. -* Has a DejaGnu test suite. - -Major changes in release 1.11: - -* AC_PROG_INSTALL calls install.sh with the -c option. -* AC_SET_MAKE cleans up after itself. -* AC_OUTPUT sets prefix and exec_prefix if they weren't set already. -* AC_OUTPUT prevents shells from looking in PATH for config.status. - -Plus a few other bug fixes. - -Major changes in release 1.10: - -* autoheader uses config.h.bot if present, analogous to config.h.top. -* AC_PROG_INSTALL looks for install.sh in srcdir or srcdir/.. and - never uses cp. -* AC_PROG_CXX looks for cxx as a C++ compiler. - -Plus several bugs fixed. - -Major changes in release 1.9: - -* AC_YYTEXT_POINTER replaces AC_DECLARE_YYTEXT. -* AC_SIZEOF_TYPE generates the cpp symbol name automatically, - and autoheader generates entries for those names automatically. -* AC_FIND_X gets the result from xmkmf correctly. -* AC_FIND_X assumes no X if --without-x was given. -* AC_FIND_XTRA adds libraries to the variable X_EXTRA_LIBS. -* AC_PROG_INSTALL finds OSF/1 installbsd. - -Major changes in release 1.8: - -** New macros: -* New macros AC_LANG_C, AC_LANG_CPLUSPLUS, AC_LANG_SAVE, AC_LANG_RESTORE, - AC_PROG_CXX, AC_PROG_CXXCPP, AC_REQUIRE_CPP - for checking both C++ and C features in one configure script. -* New macros AC_CHECKING, AC_VERBOSE, AC_WARN, AC_ERROR for printing messages. -* New macros AC_FIND_XTRA, AC_MMAP, AC_SIZEOF_TYPE, AC_PREREQ, - AC_SET_MAKE, AC_ENABLE. - -** Changed macros: -* AC_FIND_X looks for X in more places. -* AC_PROG_INSTALL defaults to install.sh instead of cp, if it's in srcdir. - install.sh is distributed with Autoconf. -* AC_DECLARE_YYTEXT has been removed because it can't work, pending - a rewrite of quoting in AC_DEFINE. -* AC_OUTPUT adds its comments in C format when substituting in C files. -* AC_COMPILE_CHECK protects its ECHO-TEXT argument with double quotes. - -** New or changed command line options: -* configure accepts --enable-FEATURE[=ARG] and --disable-FEATURE options. -* configure accepts --without-PACKAGE, which sets withval=no. -* configure accepts --x-includes=DIR and --x-libraries=DIR. -* Giving --with-PACKAGE no argument sets withval=yes instead of withval=1. -* configure accepts --help, --version, --silent/--quiet, --no-create options. -* configure accepts and ignores most other Cygnus configure options, and - warns about unknown options. -* config.status accepts --help, --version options. - -** Paths and other changes: -* Relative srcdir values are not made absolute. -* The values of @prefix@ and @exec_prefix@ and @top_srcdir@ get substituted. -* Autoconf library files are installed in ${datadir}/autoconf, not ${datadir}. -* autoheader optionally copies config.h.top to the beginning of config.h.in. -* The example Makefile dependencies for configure et al. work better. -* Namespace cleanup: all shell variables used internally by Autoconf - have names beginning with `ac_'. - -More big improvements are in process for future releases, but have not -yet been (variously) finished, integrated, tested, or documented enough -to release yet. - -Major changes in release 1.7: - -* New macro AC_OBSOLETE. -* Bugs in Makefile.in fixed. -* AC_LONG_FILE_NAMES improved. - -Major changes in release 1.6: - -* New macro AC_LONG_64_BITS. -* Multiple .h files can be created. -* AC_FIND_X looks for X files directly if it doesn't find xmkmf. -* AC_ALLOCA defines C_ALLOCA if using alloca.c. -* --with-NAME can take a value, e.g., --with-targets=sun4,hp300bsd. -* Unused --no-create option to configure removed. -* autoheader doesn't change the timestamp of its output file if - the file didn't change. -* All macros that look for libraries now use AC_HAVE_LIBRARY. -* config.status checks three optional environment variables to - modify its behavior. -* The usual bug fixes. - -Major changes in release 1.5: - -* New macros AC_FIND_X, AC_OFF_T, AC_STAT_MACROS_BROKEN, AC_REVISION. -* autoconf and autoheader scripts have GNU standards conforming - --version and --help options (they print their message and exit). -* Many bug fixes. - -Major changes in release 1.4: - -* New macros AC_HAVE_POUNDBANG, AC_TIME_WITH_SYS_TIME, AC_LONG_DOUBLE, - AC_GETGROUPS_T, AC_DEFINE_UNQUOTED. -* autoconf and autoheader use the M4 environment variable to determine the - path of the m4 program to use. -* The --macrodir option to autoconf and autoheader specifies the directory - in which acspecific.m4, acgeneral.m4, etc. reside if not the default. -* autoconf and autoheader can take `-' as their file names, which means to - read stdin as input. -* Resulting configure scripts can take a --verbose option which causes them - to print the results of their tests. -* AC_DEFINE quotes its second argument in such a way that spaces, magic - shell characters, etc. will be preserved during various stages of - expansion done by the shell. If you don't want this, use - AC_DEFINE_UNQUOTED instead. -* Much textual processing done with external calls to tr and sed have been - internalized with builtin m4 `patsubst' and `translit' calls. -* AC_OUTPUT doesn't hardwire the filenames it outputs. Instead, you can - set the shell variables `gen_files' and `gen_config' to the list of - filenames to output. -* AC_DECLARE_YYTEXT does an AC_SUBST of `LEX_OUTPUT_ROOT', which may be - "lex.yy" or "lexyy", depending on the system. -* AC_PROGRAMS_CHECK takes an optional third arg. If given, it is used as - the default value. -* If AC_ALLOCA chooses alloca.c, it also defines STACK_DIRECTION. -* AC_CONST works much more reliably on more systems. -* Many bug fixes. - -Major changes in release 1.3: - -configure no longer requires awk for packages that use a config.h. -Support handling --with-PACKAGE options. -New `autoheader' script to create `config.h.in' from `configure.in'. -Ignore troublesome -lucb and -lPW when searching for alloca. -Rename --exec_prefix to --exec-prefix for GNU standards conformance. -Improve detection of STDC library. -Add AC_HAVE_LIBRARY to check for non-default libraries. -Function checking should work with future GNU libc releases. - -Major changes in release 1.2: - -The --srcdir option is now usually unnecessary. -Add a file containing sample comments describing CPP macros. -A comment in config.status tells which host it was configured on. -Substituted variable values can now contain commas. -Fix bugs in various feature checks. - -Major changes in release 1.1: - -Added AC_STRCOLL macro. -Made AC_GETLOADAVG check for more things. -AC_OUTPUT argument is now optional. -Various bug fixes. diff --git a/util/autoconf/README b/util/autoconf/README deleted file mode 100644 index 959b195..0000000 --- a/util/autoconf/README +++ /dev/null @@ -1,38 +0,0 @@ -Autoconf - -Autoconf is an extensible package of m4 macros that produce shell -scripts to automatically configure software source code packages. -These scripts can adapt the packages to many kinds of UNIX-like -systems without manual user intervention. Autoconf creates a -configuration script for a package from a template file that lists the -operating system features that the package can use, in the form of m4 -macro calls. - -Producing configuration scripts using Autoconf requires GNU m4. You -must install GNU m4 (version 1.1 or later, preferably 1.3 or later -for better performance) before configuring Autoconf, so that -Autoconf's configure script can find it. The configuration scripts -produced by Autoconf are self-contained, so their users do not need to -have Autoconf (or GNU m4). - -Also, some optional utilities that come with Autoconf use Perl, TCL, -and the TCL packages Expect and DejaGNU. However, none of those -are required in order to use the main Autoconf program. If they are -not present, the affected Autoconf utilities will not be installed. - -The file INSTALL can be distributed with packages that use -Autoconf-generated configure scripts and Makefiles that conform to the -GNU coding standards. The package's README can just give an overview -of the package, where to report bugs, and a pointer to INSTALL for -instructions on compilation and installation. This removes the need -to maintain many similar sets of installation instructions. - -The file `acconfig.h' contains short descriptions of the C preprocessor -variables that Autoconf can define, suitable for copying into other -packages' configuration headers or Makefile.in files. You can use the -program `autoheader' to automatically create a configuration header -from a `configure.in', based on the information in `acconfig.h'. - -Mail suggestions and bug reports for Autoconf to -bug-gnu-utils@prep.ai.mit.edu. Please include the Autoconf version -number, which you can get by running "autoconf --version". diff --git a/util/autoconf/TODO b/util/autoconf/TODO deleted file mode 100644 index 89c3229..0000000 --- a/util/autoconf/TODO +++ /dev/null @@ -1,102 +0,0 @@ --*- outline -*- - -Things it might be nice to do someday: - ------------------------------------------------------------------------------- - -* Make AC_CHECK_LIB check whether the function is already available - before checking for the library. This might involve adding another - kind of cache variable to indicate whether a given function needs a - given library. The current ac_cv_func_ variables are intended to - indicate whether the function is in the default libraries, but - actually also take into account whatever value LIBS had when they - were checked for. - ------------------------------------------------------------------------------- - -* Add AC_PROG_CC_POSIX to replace the current ad-hoc macros for AIX, - Minix, ISC, etc. - ------------------------------------------------------------------------------- - -* Use AC_EGREP_CPP instead of AC_TRY_LINK to detect structures and members. - ------------------------------------------------------------------------------- - -* Make AC_CHECK_FUNC[S] automatically use any particular macros for the - listed functions. - ------------------------------------------------------------------------------- - -* Support creating both config.h and DEFS in the same configure. - ------------------------------------------------------------------------------- - -* Select the right CONFIG_SHELL automatically (for Ultrix, Lynx especially.) - ------------------------------------------------------------------------------- - -* Doc: Add concept index. - ------------------------------------------------------------------------------- - -* Doc: Centralize information on POSIX, MS-DOS, cross-compiling, and - other important topics. - ------------------------------------------------------------------------------- - -* Split up AC_SUBST substitutions using a loop to accomodate shells - with severely limited here document sizes, if it turns out to be a problem. - I'm not sure whether the limit is on lines or bytes; if bytes, it - will be less of a problem than it was with the long lines used for - creating a header file. - There has also been a report that HPUX and OSF/1 seds only allow 100 - commands. - ------------------------------------------------------------------------------- - -* Allow [ and ] in egrep patterns and AC_DEFINE args. - ------------------------------------------------------------------------------- - -* Add a Makefile generator that supports the standard GNU targets. - (Being worked on.) - ------------------------------------------------------------------------------- - -* Mike Haertel's suggestions: - -** Provide files containing decls for alloca, strings, etc. - -** Cross compiling: - -*** Error messages include instructions for overriding defaults using -config.site. - -*** Distribute a config.site corresponding to a hypothetical bare POSIX system with c89. - -*** Cache consistency checking: ignore cache if environment -(CC or PATH) differs. - -** Site defaults: - -*** Convention for consistency checking of env vars and options in config.site so config.site can print obnoxious messages if it doesn't like options or env vars that users use. - ------------------------------------------------------------------------------- - -* autoscan: Tell the files that caused inclusion of each macro, -in a dnl comment. (Seems to be hard.) - ------------------------------------------------------------------------------- - -* Look at user contributed macros: prototypes, IEEE double precision math, -shared libraries, various other things. - ------------------------------------------------------------------------------- - -* Test suite: more things to test: -** That the shell scripts produce correct output on some simple data. -** Configuration header files. That autoheader does the right thing, - and so does AC_CONFIG_HEADER when autoconf is run. - ------------------------------------------------------------------------------- diff --git a/util/autoconf/acconfig.h b/util/autoconf/acconfig.h deleted file mode 100644 index 801a8ac..0000000 --- a/util/autoconf/acconfig.h +++ /dev/null @@ -1,248 +0,0 @@ -/* acconfig.h - This file is in the public domain. - - Descriptive text for the C preprocessor macros that - the distributed Autoconf macros can define. - No software package will use all of them; autoheader copies the ones - your configure.in uses into your configuration header file templates. - - The entries are in sort -df order: alphabetical, case insensitive, - ignoring punctuation (such as underscores). Although this order - can split up related entries, it makes it easier to check whether - a given entry is in the file. - - Leave the following blank line there!! Autoheader needs it. */ - - -/* Define if on AIX 3. - System headers sometimes define this. - We just want to avoid a redefinition error message. */ -#ifndef _ALL_SOURCE -#undef _ALL_SOURCE -#endif - -/* Define if using alloca.c. */ -#undef C_ALLOCA - -/* Define if type char is unsigned and you are not using gcc. */ -#undef __CHAR_UNSIGNED__ - -/* Define if the closedir function returns void instead of int. */ -#undef CLOSEDIR_VOID - -/* Define to empty if the keyword does not work. */ -#undef const - -/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems. - This function is required for alloca.c support on those systems. */ -#undef CRAY_STACKSEG_END - -/* Define for DGUX with <sys/dg_sys_info.h>. */ -#undef DGUX - -/* Define if you have <dirent.h>. */ -#undef DIRENT - -/* Define to the type of elements in the array set by `getgroups'. - Usually this is either `int' or `gid_t'. */ -#undef GETGROUPS_T - -/* Define if the `getloadavg' function needs to be run setuid or setgid. */ -#undef GETLOADAVG_PRIVILEGED - -/* Define to `int' if <sys/types.h> doesn't define. */ -#undef gid_t - -/* Define if you have alloca, as a function or macro. */ -#undef HAVE_ALLOCA - -/* Define if you have <alloca.h> and it should be used (not on Ultrix). */ -#undef HAVE_ALLOCA_H - -/* Define if you don't have vprintf but do have _doprnt. */ -#undef HAVE_DOPRNT - -/* Define if your system has its own `getloadavg' function. */ -#undef HAVE_GETLOADAVG - -/* Define if you have the getmntent function. */ -#undef HAVE_GETMNTENT - -/* Define if the `long double' type works. */ -#undef HAVE_LONG_DOUBLE - -/* Define if you support file names longer than 14 characters. */ -#undef HAVE_LONG_FILE_NAMES - -/* Define if you have a working `mmap' system call. */ -#undef HAVE_MMAP - -/* Define if system calls automatically restart after interruption - by a signal. */ -#undef HAVE_RESTARTABLE_SYSCALLS - -/* Define if your struct stat has st_blksize. */ -#undef HAVE_ST_BLKSIZE - -/* Define if your struct stat has st_blocks. */ -#undef HAVE_ST_BLOCKS - -/* Define if you have the strcoll function and it is properly defined. */ -#undef HAVE_STRCOLL - -/* Define if your struct stat has st_rdev. */ -#undef HAVE_ST_RDEV - -/* Define if you have the strftime function. */ -#undef HAVE_STRFTIME - -/* Define if you have <sys/wait.h> that is POSIX.1 compatible. */ -#undef HAVE_SYS_WAIT_H - -/* Define if your struct tm has tm_zone. */ -#undef HAVE_TM_ZONE - -/* Define if you don't have tm_zone but do have the external array - tzname. */ -#undef HAVE_TZNAME - -/* Define if you have <unistd.h>. */ -#undef HAVE_UNISTD_H - -/* Define if utime(file, NULL) sets file's timestamp to the present. */ -#undef HAVE_UTIME_NULL - -/* Define if you have <vfork.h>. */ -#undef HAVE_VFORK_H - -/* Define if you have the vprintf function. */ -#undef HAVE_VPRINTF - -/* Define if you have the wait3 system call. */ -#undef HAVE_WAIT3 - -/* Define as __inline if that's what the C compiler calls it. */ -#undef inline - -/* Define if int is 16 bits instead of 32. */ -#undef INT_16_BITS - -/* Define if long int is 64 bits. */ -#undef LONG_64_BITS - -/* Define if major, minor, and makedev are declared in <mkdev.h>. */ -#undef MAJOR_IN_MKDEV - -/* Define if major, minor, and makedev are declared in <sysmacros.h>. */ -#undef MAJOR_IN_SYSMACROS - -/* Define if on MINIX. */ -#undef _MINIX - -/* Define to `int' if <sys/types.h> doesn't define. */ -#undef mode_t - -/* Define if you don't have <dirent.h>, but have <ndir.h>. */ -#undef NDIR - -/* Define if you have <memory.h>, and <string.h> doesn't declare the - mem* functions. */ -#undef NEED_MEMORY_H - -/* Define if your struct nlist has an n_un member. */ -#undef NLIST_NAME_UNION - -/* Define if you have <nlist.h>. */ -#undef NLIST_STRUCT - -/* Define if your C compiler doesn't accept -c and -o together. */ -#undef NO_MINUS_C_MINUS_O - -/* Define to `long' if <sys/types.h> doesn't define. */ -#undef off_t - -/* Define to `int' if <sys/types.h> doesn't define. */ -#undef pid_t - -/* Define if the system does not provide POSIX.1 features except - with this defined. */ -#undef _POSIX_1_SOURCE - -/* Define if you need to in order for stat and other things to work. */ -#undef _POSIX_SOURCE - -/* Define as the return type of signal handlers (int or void). */ -#undef RETSIGTYPE - -/* Define if the setvbuf function takes the buffering type as its second - argument and the buffer pointer as the third, as on System V - before release 3. */ -#undef SETVBUF_REVERSED - -/* Define to `unsigned' if <sys/types.h> doesn't define. */ -#undef size_t - -/* If using the C implementation of alloca, define if you know the - direction of stack growth for your system; otherwise it will be - automatically deduced at run-time. - STACK_DIRECTION > 0 => grows toward higher addresses - STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown - */ -#undef STACK_DIRECTION - -/* Define if the `S_IS*' macros in <sys/stat.h> do not work properly. */ -#undef STAT_MACROS_BROKEN - -/* Define if you have the ANSI C header files. */ -#undef STDC_HEADERS - -/* Define on System V Release 4. */ -#undef SVR4 - -/* Define if you don't have <dirent.h>, but have <sys/dir.h>. */ -#undef SYSDIR - -/* Define if you don't have <dirent.h>, but have <sys/ndir.h>. */ -#undef SYSNDIR - -/* Define if `sys_siglist' is declared by <signal.h>. */ -#undef SYS_SIGLIST_DECLARED - -/* Define if you can safely include both <sys/time.h> and <time.h>. */ -#undef TIME_WITH_SYS_TIME - -/* Define if your <sys/time.h> declares struct tm. */ -#undef TM_IN_SYS_TIME - -/* Define to `int' if <sys/types.h> doesn't define. */ -#undef uid_t - -/* Define for Encore UMAX. */ -#undef UMAX - -/* Define for Encore UMAX 4.3 that has <inq_status/cpustats.h> - instead of <sys/cpustats.h>. */ -#undef UMAX4_3 - -/* Define if you do not have <strings.h>, index, bzero, etc.. */ -#undef USG - -/* Define vfork as fork if vfork does not work. */ -#undef vfork - -/* Define if the closedir function returns void instead of int. */ -#undef VOID_CLOSEDIR - -/* Define if your processor stores words with the most significant - byte first (like Motorola and SPARC, unlike Intel and VAX). */ -#undef WORDS_BIGENDIAN - -/* Define if lex declares yytext as a char * by default, not a char[]. */ -#undef YYTEXT_POINTER - - -/* Leave that blank line there!! Autoheader needs it. - If you're adding to this file, keep in mind: - The entries are in sort -df order: alphabetical, case insensitive, - ignoring punctuation (such as underscores). */ diff --git a/util/autoconf/acfunctions b/util/autoconf/acfunctions deleted file mode 100644 index 5947ba6..0000000 --- a/util/autoconf/acfunctions +++ /dev/null @@ -1,58 +0,0 @@ -# Ones that have their own macros. -major AC_HEADER_MAJOR -minor AC_HEADER_MAJOR -makedev AC_HEADER_MAJOR -bcopy AC_HEADER_STDC -bcmp AC_HEADER_STDC -bzero AC_HEADER_STDC -ioctl AC_PROG_GCC_TRADITIONAL -memchr AC_HEADER_STDC -memcpy AC_HEADER_STDC -memcmp AC_FUNC_MEMCMP -memmove AC_HEADER_STDC -memset AC_HEADER_STDC -index AC_HEADER_STDC -rindex AC_HEADER_STDC -getgroups AC_TYPE_GETGROUPS -signal AC_TYPE_SIGNAL -alloca AC_FUNC_ALLOCA -getloadavg AC_FUNC_GETLOADAVG -mmap AC_FUNC_MMAP -setvbuf AC_FUNC_SETVBUF_REVERSED -strcoll AC_FUNC_STRCOLL -utime AC_FUNC_UTIME_NULL -vfork AC_FUNC_VFORK -vprintf AC_FUNC_VPRINTF -vfprintf AC_FUNC_VPRINTF -vsprintf AC_FUNC_VPRINTF -wait3 AC_FUNC_WAIT3 - -# Others. -fnmatch AC_CHECK_FUNCS -ftime AC_CHECK_FUNCS -gethostname AC_CHECK_FUNCS -gettimeofday AC_CHECK_FUNCS -getusershell AC_CHECK_FUNCS -getcwd AC_CHECK_FUNCS -getwd AC_CHECK_FUNCS -mkdir AC_CHECK_FUNCS -mkfifo AC_CHECK_FUNCS -mktime AC_CHECK_FUNCS -putenv AC_CHECK_FUNCS -re_comp AC_CHECK_FUNCS -regcmp AC_CHECK_FUNCS -regcomp AC_CHECK_FUNCS -rmdir AC_CHECK_FUNCS -select AC_CHECK_FUNCS -socket AC_CHECK_FUNCS -stime AC_CHECK_FUNCS -strcspn AC_CHECK_FUNCS -strdup AC_CHECK_FUNCS -strerror AC_CHECK_FUNCS -strftime AC_CHECK_FUNCS -strspn AC_CHECK_FUNCS -strstr AC_CHECK_FUNCS -strtod AC_CHECK_FUNCS -strtol AC_CHECK_FUNCS -strtoul AC_CHECK_FUNCS -uname AC_CHECK_FUNCS diff --git a/util/autoconf/acgeneral.m4 b/util/autoconf/acgeneral.m4 deleted file mode 100644 index b7e6bc3..0000000 --- a/util/autoconf/acgeneral.m4 +++ /dev/null @@ -1,2021 +0,0 @@ -dnl Parameterized macros. -dnl Requires GNU m4. -dnl This file is part of Autoconf. -dnl Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. -dnl -dnl This program is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 2, or (at your option) -dnl any later version. -dnl -dnl This program is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this program; if not, write to the Free Software -dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -dnl -dnl As a special exception, the Free Software Foundation gives unlimited -dnl permission to copy, distribute and modify the configure scripts that -dnl are the output of Autoconf. You need not follow the terms of the GNU -dnl General Public License when using or distributing such scripts, even -dnl though portions of the text of Autoconf appear in them. The GNU -dnl General Public License (GPL) does govern all other use of the material -dnl that constitutes the Autoconf program. -dnl -dnl Certain portions of the Autoconf source text are designed to be copied -dnl (in certain cases, depending on the input) into the output of -dnl Autoconf. We call these the "data" portions. The rest of the Autoconf -dnl source text consists of comments plus executable code that decides which -dnl of the data portions to output in any given case. We call these -dnl comments and executable code the "non-data" portions. Autoconf never -dnl copies any of the non-data portions into its output. -dnl -dnl This special exception to the GPL applies to versions of Autoconf -dnl released by the Free Software Foundation. When you make and -dnl distribute a modified version of Autoconf, you may extend this special -dnl exception to the GPL to apply to your modified version as well, *unless* -dnl your modified version has the potential to copy into its output some -dnl of the text that was the non-data portion of the version that you started -dnl with. (In other words, unless your change moves or copies text from -dnl the non-data portions to the data portions.) 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This is necessary, for -# example, in the case of _POSIX_SOURCE, which is predefined and required -# on some systems where configure will not decide to define it. -cat >> conftest.vals <<\EOF -changequote(, )dnl -s%^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*%/* & */% -changequote([, ])dnl -EOF - -# Break up conftest.vals because some shells have a limit on -# the size of here documents, and old seds have small limits too. -# Maximum number of lines to put in a single here document. -ac_max_here_lines=12 - -rm -f conftest.tail -while : -do - ac_lines=`grep -c . conftest.vals` - # grep -c gives empty output for an empty file on some AIX systems. - if test -z "$ac_lines" || test "$ac_lines" -eq 0; then break; fi - # Write a limited-size here document to conftest.frag. - echo ' cat > conftest.frag <<CEOF' >> $CONFIG_STATUS - sed ${ac_max_here_lines}q conftest.vals >> $CONFIG_STATUS - echo 'CEOF - sed -f conftest.frag conftest.in > conftest.out - rm -f conftest.in - mv conftest.out conftest.in -' >> $CONFIG_STATUS - sed 1,${ac_max_here_lines}d conftest.vals > conftest.tail - rm -f conftest.vals - mv conftest.tail conftest.vals -done -rm -f conftest.vals - -dnl Now back to your regularly scheduled config.status. -cat >> $CONFIG_STATUS <<\EOF - rm -f conftest.frag conftest.h - echo "/* $ac_file. Generated automatically by configure. */" > conftest.h - cat conftest.in >> conftest.h - rm -f conftest.in - if cmp -s $ac_file conftest.h 2>/dev/null; then - echo "$ac_file is unchanged" - rm -f conftest.h - else - rm -f $ac_file - mv conftest.h $ac_file - fi -fi; done - -]) - -dnl This is a subroutine of AC_OUTPUT. It is called inside a quoted -dnl here document whose contents are going into config.status. -dnl AC_OUTPUT_LINKS(SOURCE..., DEST...) -define(AC_OUTPUT_LINKS, -[EOF - -cat >> $CONFIG_STATUS <<EOF -ac_sources="$1" -ac_dests="$2" -EOF - -cat >> $CONFIG_STATUS <<\EOF -srcdir=$ac_given_srcdir -while test -n "$ac_sources"; do - set $ac_dests; ac_dest=[$]1; shift; ac_dests=[$]* - set $ac_sources; ac_source=[$]1; shift; ac_sources=[$]* - - echo "linking $srcdir/$ac_source to $ac_dest" - - if test ! -r $srcdir/$ac_source; then - AC_MSG_ERROR($srcdir/$ac_source: File not found) - fi - rm -f $ac_dest - - # Make relative symlinks. - # Remove last slash and all that follows it. Not all systems have dirname. -changequote(, )dnl - ac_dest_dir=`echo $ac_dest|sed 's%/[^/][^/]*$%%'` -changequote([, ])dnl - if test "$ac_dest_dir" != "$ac_dest" && test "$ac_dest_dir" != .; then - # The dest file is in a subdirectory. - test ! -d "$ac_dest_dir" && mkdir "$ac_dest_dir" - ac_dest_dir_suffix="/$ac_dest_dir" - # A "../" for each directory in $ac_dest_dir_suffix. -changequote(, )dnl - ac_dots=`echo $ac_dest_dir_suffix|sed 's%/[^/]*%../%g'` -changequote([, ])dnl - else - ac_dest_dir_suffix= ac_dots= - fi - - case "$srcdir" in -changequote(, )dnl - [/$]*) ac_rel_source="$srcdir/$ac_source" ;; -changequote([, ])dnl - *) ac_rel_source="$ac_dots$srcdir/$ac_source" ;; - esac - - # Make a symlink if possible; otherwise try a hard link. - if ln -s $ac_rel_source $ac_dest 2>/dev/null || - ln $srcdir/$ac_source $ac_dest; then : - else - AC_MSG_ERROR(can not link $ac_dest to $srcdir/$ac_source) - fi -done -]) - -This is a subroutine of AC_OUTPUT. It is called after running config.status. -dnl AC_OUTPUT_SUBDIRS(DIRECTORY...) -define(AC_OUTPUT_SUBDIRS, -[ -if test "$no_recursion" != yes; then - - # Remove --cache-file and --srcdir arguments so they do not pile up. - ac_sub_configure_args= - ac_prev= - for ac_arg in $ac_configure_args; do - if test -n "$ac_prev"; then - ac_prev= - continue - fi - case "$ac_arg" in - -cache-file | --cache-file | --cache-fil | --cache-fi \ - | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c) - ac_prev=cache_file ;; - -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \ - | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*) - ;; - -srcdir | --srcdir | --srcdi | --srcd | --src | --sr) - ac_prev=srcdir ;; - -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*) - ;; - *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;; - esac - done - - for ac_config_dir in $1; do - - # Do not complain, so a configure script can configure whichever - # parts of a large source tree are present. - if test ! -d $srcdir/$ac_config_dir; then - continue - fi - - echo configuring in $ac_config_dir - - case "$srcdir" in - .) ;; - *) - if test -d ./$ac_config_dir || mkdir ./$ac_config_dir; then :; - else - AC_MSG_ERROR(can not create `pwd`/$ac_config_dir) - fi - ;; - esac - - ac_popdir=`pwd` - cd $ac_config_dir - - case "$srcdir" in - .) # No --srcdir option. We are building in place. - ac_sub_srcdir=$srcdir ;; - /*) # Absolute path. - ac_sub_srcdir=$srcdir/$ac_config_dir ;; - *) # Relative path. - ac_sub_srcdir=../$srcdir/$ac_config_dir ;; - esac - - # Check for guested configure; otherwise get Cygnus style configure. - if test -f $ac_sub_srcdir/configure; then - ac_sub_configure=$ac_sub_srcdir/configure - elif test -f $ac_sub_srcdir/configure.in; then - ac_sub_configure=$ac_configure - else - AC_MSG_WARN(no configuration information is in $ac_config_dir) - ac_sub_configure= - fi - - # The recursion is here. - if test -n "$ac_sub_configure"; then - - # Make the cache file name correct relative to the subdirectory. -changequote(, )dnl - # A "../" for each directory in /$ac_config_dir. - ac_dots=`echo /$ac_config_dir|sed 's%/[^/]*%../%g'` -changequote([, ])dnl - case "$cache_file" in - /*) ac_sub_cache_file=$cache_file ;; - *) # Relative path. - ac_sub_cache_file="$ac_dots$cache_file" ;; - esac - - echo "[running ${CONFIG_SHELL-/bin/sh} $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file] --srcdir=$ac_sub_srcdir" - # The eval makes quoting arguments work. - if eval ${CONFIG_SHELL-/bin/sh} $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_sub_srcdir - then : - else - AC_MSG_ERROR($ac_sub_configure failed for $ac_config_dir) - fi - fi - - cd $ac_popdir - done -fi -]) diff --git a/util/autoconf/acheaders b/util/autoconf/acheaders deleted file mode 100644 index 0363a38..0000000 --- a/util/autoconf/acheaders +++ /dev/null @@ -1,27 +0,0 @@ -# Ones that have their own macros. -dirent.h AC_HEADER_DIRENT -sys/ndir.h AC_HEADER_DIRENT -sys/dir.h AC_HEADER_DIRENT -ndir.h AC_HEADER_DIRENT -sys/mkdev.h AC_HEADER_MAJOR -string.h AC_HEADER_STDC -strings.h AC_HEADER_STDC -stdlib.h AC_HEADER_STDC -stddef.h AC_HEADER_STDC -stdarg.h AC_HEADER_STDC -float.h AC_HEADER_STDC -sys/wait.h AC_HEADER_SYS_WAIT -X11/Xlib.h AC_PATH_X - -# Others. -fcntl.h AC_CHECK_HEADERS -limits.h AC_CHECK_HEADERS -paths.h AC_CHECK_HEADERS -sgtty.h AC_CHECK_HEADERS -sys/file.h AC_CHECK_HEADERS -sys/ioctl.h AC_CHECK_HEADERS -sys/time.h AC_CHECK_HEADERS -sys/window.h AC_CHECK_HEADERS -syslog.h AC_CHECK_HEADERS -termio.h AC_CHECK_HEADERS -unistd.h AC_CHECK_HEADERS diff --git a/util/autoconf/acidentifiers b/util/autoconf/acidentifiers deleted file mode 100644 index a7979c0..0000000 --- a/util/autoconf/acidentifiers +++ /dev/null @@ -1,22 +0,0 @@ -sys_siglist AC_DECL_SYS_SIGLIST -mode_t AC_TYPE_MODE_T -off_t AC_TYPE_OFF_T -pid_t AC_TYPE_PID_T -size_t AC_TYPE_SIZE_T -uid_t AC_TYPE_UID_T -gid_t AC_TYPE_UID_T -S_ISDIR AC_HEADER_STAT -S_ISREG AC_HEADER_STAT -S_ISCHR AC_HEADER_STAT -S_ISBLK AC_HEADER_STAT -S_ISFIFO AC_HEADER_STAT -S_ISLNK AC_HEADER_STAT -S_ISSOCK AC_HEADER_STAT -st_blksize AC_STRUCT_ST_BLKSIZE -st_blocks AC_STRUCT_ST_BLOCKS -st_rdev AC_STRUCT_ST_RDEV -timeval AC_HEADER_TIME -tm AC_STRUCT_TM -tm_zone AC_STRUCT_TIMEZONE -const AC_C_CONST -inline AC_C_INLINE diff --git a/util/autoconf/acmakevars b/util/autoconf/acmakevars deleted file mode 100644 index 721b79b..0000000 --- a/util/autoconf/acmakevars +++ /dev/null @@ -1,11 +0,0 @@ -LN AC_PROG_LN_S -AWK AC_PROG_AWK -CC AC_PROG_CC -CPP AC_PROG_CPP -CXX AC_PROG_CXX -INSTALL AC_PROG_INSTALL -LEX AC_PROG_LEX -RANLIB AC_PROG_RANLIB -YACC AC_PROG_YACC -BISON AC_PROG_YACC -MAKE AC_PROG_MAKE_SET diff --git a/util/autoconf/acoldnames.m4 b/util/autoconf/acoldnames.m4 deleted file mode 100644 index 39e20b7..0000000 --- a/util/autoconf/acoldnames.m4 +++ /dev/null @@ -1,79 +0,0 @@ -dnl Map old names of Autoconf macros to new regularized names. -dnl This file is part of Autoconf. -dnl Copyright (C) 1994 Free Software Foundation, Inc. -dnl -dnl This program is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 2, or (at your option) -dnl any later version. -dnl -dnl This program is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this program; if not, write to the Free Software -dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -dnl -dnl General macros. -dnl -define(AC_WARN, [indir([AC_MSG_WARN], $@)])dnl -define(AC_ERROR, [indir([AC_MSG_ERROR], $@)])dnl -AC_DEFUN(AC_PROGRAM_CHECK, [indir([AC_CHECK_PROG], $@)])dnl -AC_DEFUN(AC_PROGRAM_PATH, [indir([AC_PATH_PROG], $@)])dnl -AC_DEFUN(AC_PROGRAMS_CHECK, [indir([AC_CHECK_PROGS], $@)])dnl -AC_DEFUN(AC_PROGRAMS_PATH, [indir([AC_PATH_PROGS], $@)])dnl -AC_DEFUN(AC_PREFIX, [indir([AC_PREFIX_PROGRAM], $@)])dnl -AC_DEFUN(AC_HEADER_EGREP, [indir([AC_EGREP_HEADER], $@)])dnl -AC_DEFUN(AC_PROGRAM_EGREP, [indir([AC_EGREP_CPP], $@)])dnl -AC_DEFUN(AC_TEST_PROGRAM, [indir([AC_TRY_RUN], $@)])dnl -AC_DEFUN(AC_TEST_CPP, [indir([AC_TRY_CPP], $@)])dnl -AC_DEFUN(AC_HEADER_CHECK, [indir([AC_CHECK_HEADER], $@)])dnl -AC_DEFUN(AC_FUNC_CHECK, [indir([AC_CHECK_FUNC], $@)])dnl -AC_DEFUN(AC_HAVE_FUNCS, [indir([AC_CHECK_FUNCS], $@)])dnl -AC_DEFUN(AC_HAVE_HEADERS, [indir([AC_CHECK_HEADERS], $@)])dnl -AC_DEFUN(AC_SIZEOF_TYPE, [indir([AC_CHECK_SIZEOF], $@)])dnl -dnl -dnl Specific macros. -dnl -AC_DEFUN(AC_GCC_TRADITIONAL, [indir([AC_PROG_GCC_TRADITIONAL])])dnl -AC_DEFUN(AC_MINUS_C_MINUS_O, [indir([AC_PROG_CC_C_O])])dnl -AC_DEFUN(AC_SET_MAKE, [indir([AC_PROG_MAKE_SET])])dnl -AC_DEFUN(AC_YYTEXT_POINTER, [indir([AC_DECL_YYTEXT])])dnl -AC_DEFUN(AC_LN_S, [indir([AC_PROG_LN_S])])dnl -AC_DEFUN(AC_STDC_HEADERS, [indir([AC_HEADER_STDC])])dnl -AC_DEFUN(AC_MAJOR_HEADER, [indir([AC_HEADER_MAJOR])])dnl -AC_DEFUN(AC_STAT_MACROS_BROKEN, [indir([AC_HEADER_STAT])])dnl -AC_DEFUN(AC_SYS_SIGLIST_DECLARED, [indir([AC_DECL_SYS_SIGLIST])])dnl -AC_DEFUN(AC_GETGROUPS_T, [indir([AC_TYPE_GETGROUPS])])dnl -AC_DEFUN(AC_UID_T, [indir([AC_TYPE_UID_T])])dnl -AC_DEFUN(AC_SIZE_T, [indir([AC_TYPE_SIZE_T])])dnl -AC_DEFUN(AC_PID_T, [indir([AC_TYPE_PID_T])])dnl -AC_DEFUN(AC_OFF_T, [indir([AC_TYPE_OFF_T])])dnl -AC_DEFUN(AC_MODE_T, [indir([AC_TYPE_MODE_T])])dnl -AC_DEFUN(AC_RETSIGTYPE, [indir([AC_TYPE_SIGNAL])])dnl -AC_DEFUN(AC_MMAP, [indir([AC_FUNC_MMAP])])dnl -AC_DEFUN(AC_VPRINTF, [indir([AC_FUNC_VPRINTF])])dnl -AC_DEFUN(AC_VFORK, [indir([AC_FUNC_VFORK])])dnl -AC_DEFUN(AC_WAIT3, [indir([AC_FUNC_WAIT3])])dnl -AC_DEFUN(AC_ALLOCA, [indir([AC_FUNC_ALLOCA])])dnl -AC_DEFUN(AC_GETLOADAVG, [indir([AC_FUNC_GETLOADAVG])])dnl -AC_DEFUN(AC_UTIME_NULL, [indir([AC_FUNC_UTIME_NULL])])dnl -AC_DEFUN(AC_STRCOLL, [indir([AC_FUNC_STRCOLL])])dnl -AC_DEFUN(AC_SETVBUF_REVERSED, [indir([AC_FUNC_SETVBUF_REVERSED])])dnl -AC_DEFUN(AC_TIME_WITH_SYS_TIME, [indir([AC_HEADER_TIME])])dnl -AC_DEFUN(AC_TIMEZONE, [indir([AC_STRUCT_TIMEZONE])])dnl -AC_DEFUN(AC_ST_BLOCKS, [indir([AC_STRUCT_ST_BLOCKS])])dnl -AC_DEFUN(AC_ST_BLKSIZE, [indir([AC_STRUCT_ST_BLKSIZE])])dnl -AC_DEFUN(AC_ST_RDEV, [indir([AC_STRUCT_ST_RDEV])])dnl -AC_DEFUN(AC_CROSS_CHECK, [indir([AC_C_CROSS])])dnl -AC_DEFUN(AC_CHAR_UNSIGNED, [indir([AC_C_CHAR_UNSIGNED])])dnl -AC_DEFUN(AC_LONG_DOUBLE, [indir([AC_C_LONG_DOUBLE])])dnl -AC_DEFUN(AC_WORDS_BIGENDIAN, [indir([AC_C_BIGENDIAN])])dnl -AC_DEFUN(AC_INLINE, [indir([AC_C_INLINE])])dnl -AC_DEFUN(AC_CONST, [indir([AC_C_CONST])])dnl -AC_DEFUN(AC_LONG_FILE_NAMES, [indir([AC_SYS_LONG_FILE_NAMES])])dnl -AC_DEFUN(AC_RESTARTABLE_SYSCALLS, [indir([AC_SYS_RESTARTABLE_SYSCALLS])])dnl -AC_DEFUN(AC_FIND_X, [indir([AC_PATH_X])])dnl -AC_DEFUN(AC_FIND_XTRA, [indir([AC_PATH_XTRA])])dnl diff --git a/util/autoconf/acprograms b/util/autoconf/acprograms deleted file mode 100644 index be237e3..0000000 --- a/util/autoconf/acprograms +++ /dev/null @@ -1,18 +0,0 @@ -ln AC_PROG_LN_S -awk AC_PROG_AWK -nawk AC_PROG_AWK -gawk AC_PROG_AWK -mawk AC_PROG_AWK -cc AC_PROG_CC -gcc AC_PROG_CC -cpp AC_PROG_CPP -CC AC_PROG_CXX -g++ AC_PROG_CXX -install AC_PROG_INSTALL -lex AC_PROG_LEX -flex AC_PROG_LEX -ranlib AC_PROG_RANLIB -yacc AC_PROG_YACC -byacc AC_PROG_YACC -bison AC_PROG_YACC -make AC_PROG_MAKE_SET diff --git a/util/autoconf/acspecific.m4 b/util/autoconf/acspecific.m4 deleted file mode 100644 index 3c07bc9..0000000 --- a/util/autoconf/acspecific.m4 +++ /dev/null @@ -1,1950 +0,0 @@ -dnl Macros that test for specific features. -dnl This file is part of Autoconf. -dnl Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. -dnl -dnl This program is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 2, or (at your option) -dnl any later version. -dnl -dnl This program is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this program; if not, write to the Free Software -dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -dnl -dnl As a special exception, the Free Software Foundation gives unlimited -dnl permission to copy, distribute and modify the configure scripts that -dnl are the output of Autoconf. You need not follow the terms of the GNU -dnl General Public License when using or distributing such scripts, even -dnl though portions of the text of Autoconf appear in them. The GNU -dnl General Public License (GPL) does govern all other use of the material -dnl that constitutes the Autoconf program. -dnl -dnl Certain portions of the Autoconf source text are designed to be copied -dnl (in certain cases, depending on the input) into the output of -dnl Autoconf. We call these the "data" portions. The rest of the Autoconf -dnl source text consists of comments plus executable code that decides which -dnl of the data portions to output in any given case. We call these -dnl comments and executable code the "non-data" portions. Autoconf never -dnl copies any of the non-data portions into its output. -dnl -dnl This special exception to the GPL applies to versions of Autoconf -dnl released by the Free Software Foundation. When you make and -dnl distribute a modified version of Autoconf, you may extend this special -dnl exception to the GPL to apply to your modified version as well, *unless* -dnl your modified version has the potential to copy into its output some -dnl of the text that was the non-data portion of the version that you started -dnl with. (In other words, unless your change moves or copies text from -dnl the non-data portions to the data portions.) If your modification has -dnl such potential, you must delete any notice of this special exception -dnl to the GPL from your modified version. -dnl -dnl Written by David MacKenzie, with help from -dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, -dnl Roland McGrath, Noah Friedman, david d zuhn, and many others. - - -dnl ### Checks for programs - - -dnl Check whether to use -n, \c, or newline-tab to separate -dnl checking messages from result messages. -dnl Idea borrowed from dist 3.0. -dnl Internal use only. -AC_DEFUN(AC_PROG_ECHO_N, -[if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then - # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu. - if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then - ac_n= ac_c=' -' ac_t=' ' - else - ac_n=-n ac_c= ac_t= - fi -else - ac_n= ac_c='\c' ac_t= -fi -]) - -AC_DEFUN(AC_PROG_CC, -[AC_BEFORE([$0], [AC_PROG_CPP])dnl -AC_CHECK_PROG(CC, gcc, gcc, cc) - -AC_MSG_CHECKING(whether we are using GNU C) -AC_CACHE_VAL(ac_cv_prog_gcc, -[dnl The semicolon is to pacify NeXT's syntax-checking cpp. -cat > conftest.c <<EOF -#ifdef __GNUC__ - yes; 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main() { exit(closedir(opendir(".")) != 0); }], - ac_cv_func_closedir_void=no, ac_cv_func_closedir_void=yes)])dnl -AC_MSG_RESULT($ac_cv_func_closedir_void) -if test $ac_cv_func_closedir_void = yes; then - AC_DEFINE(CLOSEDIR_VOID) -fi -]) - -AC_DEFUN(AC_FUNC_MMAP, -[AC_MSG_CHECKING(for working mmap) -AC_CACHE_VAL(ac_cv_func_mmap, -[AC_TRY_RUN([ -/* Thanks to Mike Haertel and Jim Avera for this test. */ -#include <sys/types.h> -#include <fcntl.h> -#include <sys/mman.h> - -#ifdef BSD -# ifndef BSD4_1 -# define HAVE_GETPAGESIZE -# endif -#endif - -#ifndef HAVE_GETPAGESIZE -# include <sys/param.h> -# ifdef EXEC_PAGESIZE -# define getpagesize() EXEC_PAGESIZE -# else -# ifdef NBPG -# define getpagesize() NBPG * CLSIZE -# ifndef CLSIZE -# define CLSIZE 1 -# endif -# else -# ifdef NBPC -# define getpagesize() NBPC -# else -# define getpagesize() PAGESIZE /* SVR4 */ -# endif -# endif -# endif -#endif - -#ifdef __osf__ -# define valloc malloc -#endif - -#ifdef __cplusplus -extern "C" { void *valloc(unsigned), *malloc(unsigned); } -#else -char *valloc(), *malloc(); -#endif - -int -main() -{ - char *buf1, *buf2, *buf3; - int i = getpagesize(), j; - int i2 = getpagesize()*2; - int fd; - - buf1 = (char *)valloc(i2); - buf2 = (char *)valloc(i); - buf3 = (char *)malloc(i2); - for (j = 0; j < i2; ++j) - *(buf1 + j) = rand(); - fd = open("conftestmmap", O_CREAT | O_RDWR, 0666); - write(fd, buf1, i2); - mmap(buf2, i, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, fd, 0); - for (j = 0; j < i; ++j) - if (*(buf1 + j) != *(buf2 + j)) - exit(1); - lseek(fd, (long)i, 0); - read(fd, buf2, i); /* read into mapped memory -- file should not change */ - /* (it does in i386 SVR4.0 - Jim Avera, jima@netcom.com) */ - lseek(fd, (long)0, 0); - read(fd, buf3, i2); - for (j = 0; j < i2; ++j) - if (*(buf1 + j) != *(buf3 + j)) - exit(1); - exit(0); -} -], ac_cv_func_mmap=yes, ac_cv_func_mmap=no, ac_cv_func_mmap=no)])dnl -AC_MSG_RESULT($ac_cv_func_mmap) -if test $ac_cv_func_mmap = yes; then - AC_DEFINE(HAVE_MMAP) -fi -]) - -AC_DEFUN(AC_FUNC_VPRINTF, -[AC_CHECK_FUNC(vprintf, AC_DEFINE(HAVE_VPRINTF)) -if test "$ac_cv_func_vprintf" != yes; then -AC_CHECK_FUNC(_doprnt, AC_DEFINE(HAVE_DOPRNT)) -fi -]) - -AC_DEFUN(AC_FUNC_VFORK, -[AC_REQUIRE([AC_TYPE_PID_T])dnl -AC_CHECK_HEADER(vfork.h, AC_DEFINE(HAVE_VFORK_H)) -AC_MSG_CHECKING(for working vfork) -AC_CACHE_VAL(ac_cv_func_vfork, -[AC_REQUIRE([AC_TYPE_SIGNAL]) -AC_TRY_RUN([/* Thanks to Paul Eggert for this test. */ -#include <stdio.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <signal.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#ifdef HAVE_VFORK_H -#include <vfork.h> -#endif -/* On sparc systems, changes by the child to local and incoming - argument registers are propagated back to the parent. - The compiler is told about this with #include <vfork.h>, - but some compilers (e.g. gcc -O) don't grok <vfork.h>. - Test for this by using a static variable whose address - is put into a register that is clobbered by the vfork. */ -static -#ifdef __cplusplus -sparc_address_test (int arg) -#else -sparc_address_test (arg) int arg; -#endif -{ - static pid_t child; - if (!child) { - child = vfork (); - if (child < 0) - perror ("vfork"); - if (!child) { - arg = getpid(); - write(-1, "", 0); - _exit (arg); - } - } -} -static int signalled; -static RETSIGTYPE catch (s) int s; { signalled = 1; } -main() { - pid_t parent = getpid (); - pid_t child; - - sparc_address_test (); - - signal (SIGINT, catch); - - child = vfork (); - - if (child == 0) { - /* Here is another test for sparc vfork register problems. - This test uses lots of local variables, at least - as many local variables as main has allocated so far - including compiler temporaries. 4 locals are enough for - gcc 1.40.3 on a sparc, but we use 8 to be safe. - A buggy compiler should reuse the register of parent - for one of the local variables, since it will think that - parent can't possibly be used any more in this routine. - Assigning to the local variable will thus munge parent - in the parent process. */ - pid_t - p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(), - p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid(); - /* Convince the compiler that p..p7 are live; otherwise, it might - use the same hardware register for all 8 local variables. */ - if (p != p1 || p != p2 || p != p3 || p != p4 - || p != p5 || p != p6 || p != p7) - _exit(1); - - /* On some systems (e.g. SunOS 5.2), if the parent is catching - a signal, the child ignores the signal before execing, - and the parent later receives that signal, the parent dumps core. - Test for this by ignoring SIGINT in the child. */ - signal (SIGINT, SIG_IGN); - - /* On some systems (e.g. IRIX 3.3), - vfork doesn't separate parent from child file descriptors. - If the child closes a descriptor before it execs or exits, - this munges the parent's descriptor as well. - Test for this by closing stdout in the child. */ - _exit(close(fileno(stdout)) != 0); - } else { - int status; - struct stat st; - - while (wait(&status) != child) - ; - exit( - /* Was there some problem with vforking? */ - child < 0 - - /* Did the child fail? (This shouldn't happen.) */ - || status - - /* Did the vfork/compiler bug occur? */ - || parent != getpid() - - /* Did the signal handling bug occur? */ - || kill(parent, SIGINT) != 0 - || signalled != 1 - - /* Did the file descriptor bug occur? */ - || fstat(fileno(stdout), &st) != 0 - ); - } -}], ac_cv_func_vfork=yes, ac_cv_func_vfork=no, ac_cv_func_vfork=no)])dnl -AC_MSG_RESULT($ac_cv_func_vfork) -if test $ac_cv_func_vfork = no; then - AC_DEFINE(vfork, fork) -fi -]) - -AC_DEFUN(AC_FUNC_WAIT3, -[AC_MSG_CHECKING(for wait3 that fills in rusage) -AC_CACHE_VAL(ac_cv_func_wait3, -[AC_TRY_RUN([#include <sys/types.h> -#include <sys/time.h> -#include <sys/resource.h> -#include <stdio.h> -/* HP-UX has wait3 but does not fill in rusage at all. */ -main() { - struct rusage r; - int i; - /* Use a field that we can force nonzero -- - voluntary context switches. - For systems like NeXT and OSF/1 that don't set it, - also use the system CPU time. */ - r.ru_nvcsw = 0; - r.ru_stime.tv_sec = 0; - r.ru_stime.tv_usec = 0; - switch (fork()) { - case 0: /* Child. */ - sleep(1); /* Give up the CPU. */ - _exit(0); - case -1: _exit(0); /* What can we do? */ - default: /* Parent. */ - wait3(&i, 0, &r); - sleep(1); /* Avoid "text file busy" from rm on fast HP-UX machines. */ - exit(r.ru_nvcsw == 0 - && r.ru_stime.tv_sec == 0 && r.ru_stime.tv_usec == 0); - } -}], ac_cv_func_wait3=yes, ac_cv_func_wait3=no, ac_cv_func_wait3=no)])dnl -AC_MSG_RESULT($ac_cv_func_wait3) -if test $ac_cv_func_wait3 = yes; then - AC_DEFINE(HAVE_WAIT3) -fi -]) - -AC_DEFUN(AC_FUNC_ALLOCA, -[AC_REQUIRE_CPP()dnl Set CPP; we run AC_EGREP_CPP conditionally. -# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works -# for constant arguments. Useless! -AC_MSG_CHECKING([for working alloca.h]) -AC_CACHE_VAL(ac_cv_header_alloca_h, -[AC_TRY_LINK([#include <alloca.h>], [char *p = alloca(2 * sizeof(int));], - ac_cv_header_alloca_h=yes, ac_cv_header_alloca_h=no)])dnl -AC_MSG_RESULT($ac_cv_header_alloca_h) -if test $ac_cv_header_alloca_h = yes; then - AC_DEFINE(HAVE_ALLOCA_H) -fi - -AC_MSG_CHECKING([for alloca]) -AC_CACHE_VAL(ac_cv_func_alloca, -[AC_TRY_LINK([ -#ifdef __GNUC__ -# define alloca __builtin_alloca -#else -# if HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - #pragma alloca -# else -# ifndef alloca /* predefined by HP cc +Olibcalls */ -char *alloca (); -# endif -# endif -# endif -#endif -], [char *p = (char *) alloca(1);], - ac_cv_func_alloca=yes, ac_cv_func_alloca=no)])dnl -AC_MSG_RESULT($ac_cv_func_alloca) -if test $ac_cv_func_alloca = yes; then - AC_DEFINE(HAVE_ALLOCA) -fi - -if test $ac_cv_func_alloca = no; then - # The SVR3 libPW and SVR4 libucb both contain incompatible functions - # that cause trouble. Some versions do not even contain alloca or - # contain a buggy version. If you still want to use their alloca, - # use ar to extract alloca.o from them instead of compiling alloca.c. - ALLOCA=alloca.o - AC_DEFINE(C_ALLOCA) - -AC_MSG_CHECKING(whether alloca needs Cray hooks) -AC_CACHE_VAL(ac_cv_os_cray, -[AC_EGREP_CPP(webecray, -[#if defined(CRAY) && ! defined(CRAY2) -webecray -#else -wenotbecray -#endif -], ac_cv_os_cray=yes, ac_cv_os_cray=no)])dnl -AC_MSG_RESULT($ac_cv_os_cray) -if test $ac_cv_os_cray = yes; then -AC_CHECK_FUNC(_getb67, AC_DEFINE(CRAY_STACKSEG_END, _getb67), -AC_CHECK_FUNC(GETB67, AC_DEFINE(CRAY_STACKSEG_END, GETB67), -AC_CHECK_FUNC(getb67, AC_DEFINE(CRAY_STACKSEG_END, getb67)))) -fi - -AC_MSG_CHECKING(stack direction for C alloca) -AC_CACHE_VAL(ac_cv_c_stack_direction, -[AC_TRY_RUN([find_stack_direction () -{ - static char *addr = 0; - auto char dummy; - if (addr == 0) - { - addr = &dummy; - return find_stack_direction (); - } - else - return (&dummy > addr) ? 1 : -1; -} -main () -{ - exit (find_stack_direction() < 0); -}], ac_cv_c_stack_direction=1, ac_cv_c_stack_direction=-1, - ac_cv_c_stack_direction=0)])dnl -AC_MSG_RESULT($ac_cv_c_stack_direction) -AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction) -fi -AC_SUBST(ALLOCA)dnl -]) - -AC_DEFUN(AC_FUNC_GETLOADAVG, -[# Some definitions of getloadavg require that the program be installed setgid. -NEED_SETGID=false -AC_SUBST(NEED_SETGID)dnl -ac_have_func=no - -# Check for the 4.4BSD definition of getloadavg. -AC_CHECK_LIB(util, getloadavg, [LIBS="$LIBS -lutil" ac_have_func=yes -# Some systems with -lutil have (and need) -lkvm as well, some do not. -AC_CHECK_LIB(kvm, kvm_open, LIBS="$LIBS -lkvm")]) - -if test $ac_have_func = no; then -# There is a commonly available library for RS/6000 AIX. -# Since it is not a standard part of AIX, it might be installed locally. -ac_save_LIBS="$LIBS" LIBS="-L/usr/local/lib $LIBS" -AC_CHECK_LIB(getloadavg, getloadavg, LIBS="$LIBS -lgetloadavg", LIBS="$ac_save_LIBS") -fi - -# Make sure it is really in the library, if we think we found it. -AC_REPLACE_FUNCS(getloadavg) - -if test $ac_cv_func_getloadavg = yes; then - AC_DEFINE(HAVE_GETLOADAVG) -else -ac_have_func=no -AC_CHECK_HEADER(sys/dg_sys_info.h, -[ac_have_func=yes AC_DEFINE(DGUX) -AC_CHECK_LIB(dgc, dg_sys_info)]) -if test $ac_have_func = no; then -# We cannot check for <dwarf.h>, because Solaris 2 does not use dwarf (it -# uses stabs), but it is still SVR4. We cannot check for <elf.h> because -# Irix 4.0.5F has the header but not the library. -AC_CHECK_LIB(elf, elf_read, - [LIBS="$LIBS -lelf" ac_have_func=yes AC_DEFINE(SVR4) - AC_CHECK_LIB(kvm, kvm_open, LIBS="$LIBS -lkvm")]) -fi -if test $ac_have_func = no; then -AC_CHECK_HEADER(inq_stats/cpustats.h, - [ac_have_func=yes AC_DEFINE(UMAX) - AC_DEFINE(UMAX4_3)]) -fi -if test $ac_have_func = no; then -AC_CHECK_HEADER(sys/cpustats.h, - [ac_have_func=yes AC_DEFINE(UMAX)]) -fi -if test $ac_have_func = no; then -AC_CHECK_HEADERS(mach/mach.h) -fi - -AC_CHECK_HEADER(nlist.h, -[AC_DEFINE(NLIST_STRUCT) -AC_MSG_CHECKING([for n_un in struct nlist]) -AC_CACHE_VAL(ac_cv_struct_nlist_n_un, -[AC_TRY_COMPILE([#include <nlist.h>], -[struct nlist n; n.n_un.n_name = 0;], -ac_cv_struct_nlist_n_un=yes, ac_cv_struct_nlist_n_un=no)])dnl -AC_MSG_RESULT($ac_cv_struct_nlist_n_un) -if test $ac_cv_struct_nlist_n_un = yes; then - AC_DEFINE(NLIST_NAME_UNION) -fi -])dnl - -dnl FIXME two bugs here: -dnl Hardwiring the path of getloadavg.c in the top-level directory, -dnl and not checking whether a getloadavg from a library needs privileges. -AC_MSG_CHECKING(whether getloadavg requires setgid) -AC_CACHE_VAL(ac_cv_func_getloadavg_setgid, -[AC_EGREP_CPP([Yowza Am I SETGID yet], -[#include "$srcdir/getloadavg.c" -#ifdef LDAV_PRIVILEGED -Yowza Am I SETGID yet -#endif], - ac_cv_func_getloadavg_setgid=yes, ac_cv_func_getloadavg_setgid=no)])dnl -AC_MSG_RESULT($ac_cv_func_getloadavg_setgid) -if test $ac_cv_func_getloadavg_setgid = yes; then - NEED_SETGID=true AC_DEFINE(GETLOADAVG_PRIVILEGED) -fi - -fi # Do not have getloadavg in system libraries. - -if test "$NEED_SETGID" = true; then - AC_MSG_CHECKING(group of /dev/kmem) -AC_CACHE_VAL(ac_cv_group_kmem, -[changequote(, )dnl - # On Solaris, /dev/kmem is a symlink. Get info on the real file. - ac_ls_output=`ls -lgL /dev/kmem 2>/dev/null` - # If we got an error (system does not support symlinks), try without -L. - test -z "$ac_ls_output" && ac_ls_output=`ls -lg /dev/kmem` - ac_cv_group_kmem=`echo $ac_ls_output \ - | sed -ne 's/[ ][ ]*/ /g; - s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\) *.*/\1/; - / /s/.* //;p;'` -changequote([, ])dnl -])dnl - KMEM_GROUP=$ac_cv_group_kmem - AC_MSG_RESULT($KMEM_GROUP) -fi -AC_SUBST(KMEM_GROUP)dnl -]) - -AC_DEFUN(AC_FUNC_UTIME_NULL, -[AC_MSG_CHECKING(whether utime accepts a null argument) -AC_CACHE_VAL(ac_cv_func_utime_null, -[rm -f conftestdata; > conftestdata -# Sequent interprets utime(file, 0) to mean use start of epoch. Wrong. -AC_TRY_RUN([#include <sys/types.h> -#include <sys/stat.h> -main() { -struct stat s, t; -exit(!(stat ("conftestdata", &s) == 0 && utime("conftestdata", (long *)0) == 0 -&& stat("conftestdata", &t) == 0 && t.st_mtime >= s.st_mtime -&& t.st_mtime - s.st_mtime < 120)); -}], ac_cv_func_utime_null=yes, ac_cv_func_utime_null=no, - ac_cv_func_utime_null=no) -rm -f core])dnl -AC_MSG_RESULT($ac_cv_func_utime_null) -if test $ac_cv_func_utime_null = yes; then - AC_DEFINE(HAVE_UTIME_NULL) -fi -]) - -AC_DEFUN(AC_FUNC_STRCOLL, -[AC_MSG_CHECKING(for strcoll) -AC_CACHE_VAL(ac_cv_func_strcoll, -[AC_TRY_RUN([#include <string.h> -main () -{ - exit (strcoll ("abc", "def") >= 0 || - strcoll ("ABC", "DEF") >= 0 || - strcoll ("123", "456") >= 0); -}], ac_cv_func_strcoll=yes, ac_cv_func_strcoll=no, ac_cv_func_strcoll=no)])dnl -AC_MSG_RESULT($ac_cv_func_strcoll) -if test $ac_cv_func_strcoll = yes; then - AC_DEFINE(HAVE_STRCOLL) -fi -]) - -AC_DEFUN(AC_FUNC_SETVBUF_REVERSED, -[AC_MSG_CHECKING(whether setvbuf arguments are reversed) -AC_CACHE_VAL(ac_cv_func_setvbuf_reversed, -[AC_TRY_RUN([#include <stdio.h> -/* If setvbuf has the reversed format, exit 0. */ -main () { - /* This call has the arguments reversed. - A reversed system may check and see that the address of main - is not _IOLBF, _IONBF, or _IOFBF, and return nonzero. */ - if (setvbuf(stdout, _IOLBF, (char *) main, BUFSIZ) != 0) - exit(1); - putc('\r', stdout); - exit(0); /* Non-reversed systems segv here. */ -}], ac_cv_func_setvbuf_reversed=yes, ac_cv_func_setvbuf_reversed=no) -rm -f core])dnl -AC_MSG_RESULT($ac_cv_func_setvbuf_reversed) -if test $ac_cv_func_setvbuf_reversed = yes; then - AC_DEFINE(SETVBUF_REVERSED) -fi -]) - -AC_DEFUN(AC_FUNC_GETMNTENT, -[# getmntent is in -lsun on Irix 4, -lseq on Dynix/PTX. -AC_CHECK_LIB(sun, getmntent, LIBS="$LIBS -lsun", - [AC_CHECK_LIB(seq, getmntent, LIBS="$LIBS -lseq")]) -AC_CHECK_FUNC(getmntent, [AC_DEFINE(HAVE_GETMNTENT)])]) - -AC_DEFUN(AC_FUNC_STRFTIME, -[# strftime is in -lintl on SCO UNIX. -AC_CHECK_LIB(intl, strftime, LIBS="$LIBS -lintl") -AC_CHECK_FUNC(strftime, [AC_DEFINE(HAVE_STRFTIME)])]) - -AC_DEFUN(AC_FUNC_MEMCMP, -[AC_MSG_CHECKING(for 8-bit clean memcmp) -AC_CACHE_VAL(ac_cv_func_memcmp, -[AC_TRY_RUN([ -main() -{ - char c0 = 0x40, c1 = 0x80, c2 = 0x81; - exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1); -} -], ac_cv_func_memcmp=yes, ac_cv_func_memcmp=no, ac_cv_func_memcmp=no)])dnl -AC_MSG_RESULT($ac_cv_func_memcmp) -test $ac_cv_func_memcmp = no && LIBOBJS="$LIBOBJS memcmp.o" -AC_SUBST(LIBOBJS)dnl -]) - - -dnl ### Checks for structure members - - -AC_DEFUN(AC_HEADER_TIME, -[AC_MSG_CHECKING([whether time.h and sys/time.h may both be included]) -AC_CACHE_VAL(ac_cv_header_time, -[AC_TRY_COMPILE([#include <sys/types.h> -#include <sys/time.h> -#include <time.h>], -[struct tm *tp;], ac_cv_header_time=yes, ac_cv_header_time=no)])dnl -AC_MSG_RESULT($ac_cv_header_time) -if test $ac_cv_header_time = yes; then - AC_DEFINE(TIME_WITH_SYS_TIME) -fi -]) - -AC_DEFUN(AC_STRUCT_TM, -[AC_MSG_CHECKING([whether struct tm is in sys/time.h or time.h]) -AC_CACHE_VAL(ac_cv_struct_tm, -[AC_TRY_COMPILE([#include <sys/types.h> -#include <time.h>], -[struct tm *tp; tp->tm_sec;], - ac_cv_struct_tm=time.h, ac_cv_struct_tm=sys/time.h)])dnl -AC_MSG_RESULT($ac_cv_struct_tm) -if test $ac_cv_struct_tm = sys/time.h; then - AC_DEFINE(TM_IN_SYS_TIME) -fi -]) - -AC_DEFUN(AC_STRUCT_TIMEZONE, -[AC_REQUIRE([AC_STRUCT_TM])dnl -AC_MSG_CHECKING([for tm_zone in struct tm]) -AC_CACHE_VAL(ac_cv_struct_tm_zone, -[AC_TRY_COMPILE([#include <sys/types.h> -#include <$ac_cv_struct_tm>], [struct tm tm; tm.tm_zone;], - ac_cv_struct_tm_zone=yes, ac_cv_struct_tm_zone=no)])dnl -AC_MSG_RESULT($ac_cv_struct_tm_zone) -if test "$ac_cv_struct_tm_zone" = yes; then - AC_DEFINE(HAVE_TM_ZONE) -else - AC_MSG_CHECKING([for tzname]) -AC_CACHE_VAL(ac_cv_var_tzname, -[AC_TRY_LINK( -changequote(<<, >>)dnl -<<#include <time.h> -#ifndef tzname /* For SGI. */ -extern char *tzname[]; 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Create source code configuration scripts. -END-INFO-DIR-ENTRY - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. - - Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Foundation. - - -Indirect: -autoconf.info-1: 1085 -autoconf.info-2: 51012 -autoconf.info-3: 100216 -autoconf.info-4: 150192 -autoconf.info-5: 198408 - -Tag Table: -(Indirect) -Node: Top1085 -Node: Introduction9210 -Node: Making configure Scripts13050 -Node: Writing configure.in16115 -Node: Invoking autoscan19815 -Node: Invoking ifnames22120 -Node: Invoking autoconf23610 -Node: Invoking autoreconf25448 -Node: Setup27768 -Node: Input28654 -Node: Output30270 -Node: Makefile Substitutions33020 -Node: Preset Output Variables34602 -Node: Build Directories37840 -Node: Automatic Remaking39566 -Node: Configuration Headers41632 -Node: Header Templates43999 -Node: Invoking autoheader45178 -Node: Subdirectories48265 -Node: Default Prefix49608 -Node: Versions51012 -Node: Existing Tests52914 -Node: Alternative Programs54379 -Node: Particular Programs55043 -Node: Generic Programs60893 -Node: Libraries62570 -Node: Library Functions64399 -Node: Particular Functions64957 -Node: Generic Functions70704 -Node: Header Files72545 -Node: Particular Headers73104 -Node: Generic Headers80075 -Node: Structures81375 -Node: Typedefs83612 -Node: Particular Typedefs84116 -Node: Generic Typedefs85316 -Node: Compiler Characteristics85759 -Node: System Services88215 -Node: UNIX Variants90536 -Node: Writing Tests92555 -Node: Examining Declarations94327 -Node: Examining Syntax96793 -Node: Examining Libraries97848 -Node: Run Time100216 -Node: Test Programs101177 -Node: Guidelines103712 -Node: Test Functions104901 -Node: Portable Shell106444 -Node: Testing Values and Files108096 -Node: Multiple Cases109751 -Node: Language Choice110949 -Node: Results112507 -Node: Defining Symbols113266 -Node: Setting Output Variables116275 -Node: Caching Results118121 -Node: Cache Variable Names120023 -Node: Cache Files121572 -Node: Printing Messages123357 -Node: Writing Macros126644 -Node: Macro Definitions127263 -Node: Macro Names128368 -Node: Quoting130819 -Node: Dependencies Between Macros132721 -Node: Prerequisite Macros133353 -Node: Suggested Ordering134808 -Node: Obsolete Macros136338 -Node: Manual Configuration137562 -Node: Specifying Names138471 -Node: Canonicalizing140343 -Node: System Type Variables141657 -Node: Using System Type142404 -Node: Site Configuration143684 -Node: External Software144457 -Node: Package Options146922 -Node: Site Details148978 -Node: Transforming Names150192 -Node: Transformation Options151371 -Node: Transformation Examples151837 -Node: Transformation Rules153405 -Node: Site Defaults154814 -Node: Invoking configure157976 -Node: Basic Installation158917 -Node: Compilers and Options161239 -Node: Build Directory161881 -Node: Installation Names162582 -Node: Optional Features163500 -Node: System Type164270 -Node: Sharing Defaults165292 -Node: Operation Controls165916 -Node: Invoking config.status166780 -Node: Questions170168 -Node: Distributing170700 -Node: Why GNU m4171826 -Node: Bootstrapping172639 -Node: Why Not Imake173255 -Node: Upgrading177836 -Node: Changed File Names179357 -Node: Changed Makefiles180093 -Node: Changed Macros181173 -Node: Invoking autoupdate182420 -Node: Changed Results184011 -Node: Changed Macro Writing186113 -Node: History187376 -Node: Genesis188083 -Node: Exodus189256 -Node: Leviticus192305 -Node: Numbers193828 -Node: Deuteronomy195744 -Node: Old Macro Names198408 -Node: Environment Variable Index201457 -Node: Output Variable Index202459 -Node: Preprocessor Symbol Index206540 -Node: Macro Index211348 - -End Tag Table diff --git a/util/autoconf/autoconf.info-1 b/util/autoconf/autoconf.info-1 deleted file mode 100644 index f49358c..0000000 --- a/util/autoconf/autoconf.info-1 +++ /dev/null @@ -1,1156 +0,0 @@ -This is Info file autoconf.info, produced by Makeinfo-1.55 from the -input file ./autoconf.texi. - -START-INFO-DIR-ENTRY -* Autoconf: (autoconf). Create source code configuration scripts. -END-INFO-DIR-ENTRY - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. - - Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Foundation. - - -File: autoconf.info, Node: Top, Next: Introduction, Up: (dir) - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. This is edition 2.1, for Autoconf version 2.1. - -* Menu: - -* Introduction:: Autoconf's purpose, strengths, and weaknesses. -* Making configure Scripts:: How to organize and produce Autoconf scripts. -* Setup:: Initialization and output. -* Existing Tests:: Macros that check for particular features. -* Writing Tests:: How to write new feature checks. -* Results:: What to do with results from feature checks. -* Writing Macros:: Adding new macros to Autoconf. -* Manual Configuration:: Selecting features that can't be guessed. -* Site Configuration:: Local defaults for `configure'. -* Invoking configure:: How to use the Autoconf output. -* Invoking config.status:: Recreating a configuration. -* Questions:: Questions about Autoconf, with answers. -* Upgrading:: Tips for upgrading from version 1. -* History:: History of Autoconf. -* Old Macro Names:: Backward compatibility macros. -* Environment Variable Index:: Index of environment variables used. -* Output Variable Index:: Index of variables set in output files. -* Preprocessor Symbol Index:: Index of C preprocessor symbols defined. -* Macro Index:: Index of Autoconf macros. - - -- The Detailed Node Listing -- - -Making `configure' Scripts - -* Writing configure.in:: What to put in an Autoconf input file. -* Invoking autoscan:: Semi-automatic `configure.in' writing. -* Invoking ifnames:: Listing the conditionals in source code. -* Invoking autoconf:: How to create configuration scripts. -* Invoking autoreconf:: Remaking multiple `configure' scripts. - -Initialization and Output Files - -* Input:: Where Autoconf should find files. -* Output:: Creating output files. -* Makefile Substitutions:: Using output variables in `Makefile's. -* Configuration Headers:: Creating a configuration header file. -* Subdirectories:: Configuring independent packages together. -* Default Prefix:: Changing the default installation prefix. -* Versions:: Version numbers in `configure'. - -Substitutions in Makefiles - -* Preset Output Variables:: Output variables that are always set. -* Build Directories:: Compiling in a different directory. -* Automatic Remaking:: Makefile rules for configuring. - -Configuration Header Files - -* Header Templates:: Input for the configuration headers. -* Invoking autoheader:: How to create configuration templates. - -Existing Tests - -* Alternative Programs:: Selecting between alternative programs. -* Libraries:: Library archives that might be missing. -* Library Functions:: C library functions that might be missing. -* Header Files:: Header files that might be missing. -* Structures:: Structures or members that might be missing. -* Typedefs:: `typedef's that might be missing. -* Compiler Characteristics:: C compiler or machine architecture features. -* System Services:: Operating system services. -* UNIX Variants:: Special kludges for specific UNIX variants. - -Alternative Programs - -* Particular Programs:: Special handling to find certain programs. -* Generic Programs:: How to find other programs. - -Library Functions - -* Particular Functions:: Special handling to find certain functions. -* Generic Functions:: How to find other functions. - -Header Files - -* Particular Headers:: Special handling to find certain headers. -* Generic Headers:: How to find other headers. - -Typedefs - -* Particular Typedefs:: Special handling to find certain types. -* Generic Typedefs:: How to find other types. - -Writing Tests - -* Examining Declarations:: Detecting header files and declarations. -* Examining Syntax:: Detecting language syntax features. -* Examining Libraries:: Detecting functions and global variables. -* Run Time:: Testing for run-time features. -* Portable Shell:: Shell script portability pitfalls. -* Testing Values and Files:: Checking strings and files. -* Multiple Cases:: Tests for several possible values. -* Language Choice:: Selecting which language to use for testing. - -Checking Run Time Behavior - -* Test Programs:: Running test programs. -* Guidelines:: General rules for writing test programs. -* Test Functions:: Avoiding pitfalls in test programs. - -Results of Tests - -* Defining Symbols:: Defining C preprocessor symbols. -* Setting Output Variables:: Replacing variables in output files. -* Caching Results:: Speeding up subsequent `configure' runs. -* Printing Messages:: Notifying users of progress or problems. - -Caching Results - -* Cache Variable Names:: Shell variables used in caches. -* Cache Files:: Files `configure' uses for caching. - -Writing Macros - -* Macro Definitions:: Basic format of an Autoconf macro. -* Macro Names:: What to call your new macros. -* Quoting:: Protecting macros from unwanted expansion. -* Dependencies Between Macros:: What to do when macros depend on other macros. - -Dependencies Between Macros - -* Prerequisite Macros:: Ensuring required information. -* Suggested Ordering:: Warning about possible ordering problems. -* Obsolete Macros:: Warning about old ways of doing things. - -Manual Configuration - -* Specifying Names:: Specifying the system type. -* Canonicalizing:: Getting the canonical system type. -* System Type Variables:: Variables containing the system type. -* Using System Type:: What to do with the system type. - -Site Configuration - -* External Software:: Working with other optional software. -* Package Options:: Selecting optional features. -* Site Details:: Configuring site details. -* Transforming Names:: Changing program names when installing. -* Site Defaults:: Giving `configure' local defaults. - -Transforming Program Names When Installing - -* Transformation Options:: `configure' options to transforme names. -* Transformation Examples:: Sample uses of transforming names. -* Transformation Rules:: `Makefile' uses of transforming names. - -Running `configure' Scripts - -* Basic Installation:: Instructions for typical cases. -* Compilers and Options:: Selecting compilers and optimization. -* Build Directory:: Configuring in a different directory. -* Installation Names:: Installing in different directories. -* Optional Features:: Selecting optional features. -* System Type:: Specifying the system type. -* Sharing Defaults:: Setting site-wide defaults for `configure'. -* Operation Controls:: Changing how `configure' runs. - -Questions About Autoconf - -* Distributing:: Distributing `configure' scripts. -* Why GNU m4:: Why not use the standard `m4'? -* Bootstrapping:: Autoconf and GNU `m4' require each other? -* Why Not Imake:: Why GNU uses `configure' instead of Imake. - -Upgrading From Version 1 - -* Changed File Names:: Files you might rename. -* Changed Makefiles:: New things to put in `Makefile.in'. -* Changed Macros:: Macro calls you might replace. -* Invoking autoupdate:: Replacing old macro names in `configure.in'. -* Changed Results:: Changes in how to check test results. -* Changed Macro Writing:: Better ways to write your own macros. - -History of Autoconf - -* Genesis:: Prehistory and naming of `configure'. -* Exodus:: The plagues of `m4' and Perl. -* Leviticus:: The priestly code of portability arrives. -* Numbers:: Growth and contributors. -* Deuteronomy:: Approaching the promises of easy configuration. - - -File: autoconf.info, Node: Introduction, Next: Making configure Scripts, Prev: Top, Up: Top - -Introduction -************ - - A physicist, an engineer, and a computer scientist were - discussing the nature of God. Surely a Physicist, said the - physicist, because early in the Creation, God made Light; and you - know, Maxwell's equations, the dual nature of electro-magnetic - waves, the relativist consequences... An Engineer!, said the - engineer, because before making Light, God split the Chaos into - Land and Water; it takes a hell of an engineer to handle that big - amount of mud, and orderly separation of solids from - liquids... The computer scientist shouted: And the Chaos, - where do you think it was coming from, hmm? - - ---Anonymous - - Autoconf is a tool for producing shell scripts that automatically -configure software source code packages to adapt to many kinds of -UNIX-like systems. The configuration scripts produced by Autoconf are -independent of Autoconf when they are run, so their users do not need to -have Autoconf. - - The configuration scripts produced by Autoconf require no manual user -intervention when run; they do not normally even need an argument -specifying the system type. Instead, they test for the presence of each -feature that the software package they are for might need individually. -(Before each check, they print a one-line message stating what they are -checking for, so the user doesn't get too bored while waiting for the -script to finish.) As a result, they deal well with systems that are -hybrids or customized from the more common UNIX variants. There is no -need to maintain files that list the features supported by each release -of each variant of UNIX. - - For each software package that Autoconf is used with, it creates a -configuration script from a template file that lists the system -features that the package needs or can use. After the shell code to -recognize and respond to a system feature has been written, Autoconf -allows it to be shared by many software packages that can use (or need) -that feature. If it later turns out that the shell code needs -adjustment for some reason, it needs to be changed in only one place; -all of the configuration scripts can be regenerated automatically to -take advantage of the updated code. - - The Metaconfig package is similar in purpose to Autoconf, but the -scripts it produces require manual user intervention, which is quite -inconvenient when configuring large source trees. Unlike Metaconfig -scripts, Autoconf scripts can support cross-compiling, if some care is -taken in writing them. - - There are several jobs related to making portable software packages -that Autoconf currently does not do. Among these are automatically -creating `Makefile' files with all of the standard targets, and -supplying replacements for standard library functions and header files -on systems that lack them. Work is in progress to add those features in -the future. - - Autoconf imposes some restrictions on the names of macros used with -`#ifdef' in C programs (*note Preprocessor Symbol Index::.). - - Autoconf requires GNU `m4' in order to generate the scripts. It -uses features that some UNIX versions of `m4' do not have. It also -overflows internal limits of some versions of `m4', including GNU `m4' -1.0. You must use version 1.1 or later of GNU `m4'. Using version 1.3 -or later will be much faster than 1.1 or 1.2. - - *Note Upgrading::, for information about upgrading from version 1. -*Note History::, for the story of Autoconf's development. *Note -Questions::, for answers to some common questions about Autoconf. - - Mail suggestions and bug reports for Autoconf to -`bug-gnu-utils@prep.ai.mit.edu'. Please include the Autoconf version -number, which you can get by running `autoconf --version'. - - -File: autoconf.info, Node: Making configure Scripts, Next: Setup, Prev: Introduction, Up: Top - -Making `configure' Scripts -************************** - - The configuration scripts that Autoconf produces are by convention -called `configure'. When run, `configure' creates several files, -replacing configuration parameters in them with appropriate values. -The files that `configure' creates are: - - * one or more `Makefile' files, one in each subdirectory of the - package (*note Makefile Substitutions::.); - - * optionally, a C header file, the name of which is configurable, - containing `#define' directives (*note Configuration Headers::.); - - * a shell script called `config.status' that, when run, will recreate - the files listed above (*note Invoking config.status::.); - - * a shell script called `config.cache' that saves the results of - running many of the tests (*note Cache Files::.); - - * a file called `config.log' containing any messages produced by - compilers, to help debugging if `configure' makes a mistake. - - To create a `configure' script with Autoconf, you need to write an -Autoconf input file `configure.in' and run `autoconf' on it. If you -write your own feature tests to supplement those that come with -Autoconf, you might also write files called `aclocal.m4' and -`acsite.m4'. If you use a C header file to contain `#define' -directives, you might also write `acconfig.h', and you will distribute -the Autoconf-generated file `config.h.in' with the package. - - Here is a diagram showing how the files that can be used in -configuration are produced. Programs that are executed are suffixed by -`*'. Optional files are enclosed in square brackets (`[]'). -`autoconf' and `autoheader' also read the installed Autoconf macro -files (by reading `autoconf.m4'). - -Files used in preparing a software package for distribution: - your source files --> [autoscan*] --> [configure.scan] --> configure.in - - configure.in --. .------> autoconf* -----> configure - +---+ - [aclocal.m4] --+ `---. - [acsite.m4] ---' | - +--> [autoheader*] -> [config.h.in] - [acconfig.h] ----. | - +-----' - [config.h.top] --+ - [config.h.bot] --' - - Makefile.in -------------------------------> Makefile.in - -Files used in configuring a software package: - .-------------> config.cache - configure* ------------+-------------> config.log - | - [config.h.in] -. v .-> [config.h] -. - +--> config.status* -+ +--> make* - Makefile.in ---' `-> Makefile ---' - -* Menu: - -* Writing configure.in:: What to put in an Autoconf input file. -* Invoking autoscan:: Semi-automatic `configure.in' writing. -* Invoking ifnames:: Listing the conditionals in source code. -* Invoking autoconf:: How to create configuration scripts. -* Invoking autoreconf:: Remaking multiple `configure' scripts. - - -File: autoconf.info, Node: Writing configure.in, Next: Invoking autoscan, Up: Making configure Scripts - -Writing `configure.in' -====================== - - To produce a `configure' script for a software package, create a -file called `configure.in' that contains invocations of the Autoconf -macros that test the system features your package needs or can use. -Autoconf macros already exist to check for many features; see *Note -Existing Tests::, for their descriptions. For most other features, you -can use Autoconf template macros to produce custom checks; see *Note -Writing Tests::, for information about them. For especially tricky or -specialized features, `configure.in' might need to contain some -hand-crafted shell commands. The `autoscan' program can give you a -good start in writing `configure.in' (*note Invoking autoscan::., for -more information). - - The order in which `configure.in' calls the Autoconf macros is not -important, with a few exceptions. Every `configure.in' must contain a -call to `AC_INIT' before the checks, and a call to `AC_OUTPUT' at the -end (*note Output::.). Additionally, some macros rely on other macros -having been called first, because they check previously set values of -some variables to decide what to do. These macros are noted in the -individual descriptions (*note Existing Tests::.), and they also warn -you when creating `configure' if they are called out of order. - - To encourage consistency, here is a suggested order for calling the -Autoconf macros. Generally speaking, the things near the end of this -list could depend on things earlier in it. For example, library -functions could be affected by typedefs and libraries. - - `AC_INIT(FILE)' - checks for programs - checks for libraries - checks for header files - checks for typedefs - checks for structures - checks for compiler characteristics - checks for library functions - checks for system services - `AC_OUTPUT([FILE...])' - - It is best to put each macro call on its own line in `configure.in'. -Most of the macros don't add extra newlines; they rely on the newline -after the macro call to terminate the commands. This approach makes -the generated `configure' script a little easier to read by not -inserting lots of blank lines. It is generally safe to set shell -variables on the same line as a macro call, because the shell allows -assignments without intervening newlines. - - When calling macros that take arguments, there must not be any blank -space between the macro name and the open parenthesis. Arguments can be -more than one line long if they are enclosed within the `m4' quote -characters `[' and `]'. If you have a long line such as a list of file -names, you can generally use a backslash at the end of a line to -continue it logically on the next line (this is implemented by the -shell, not by anything special that Autoconf does). - - Some macros handle two cases: what to do if the given condition is -met, and what to do if the condition is not met. In some places you -might want to do something if a condition is true but do nothing if it's -false, or vice versa. To omit the true case, pass an empty value for -the ACTION-IF-FOUND argument to the macro. To omit the false case, -omit the ACTION-IF-NOT-FOUND argument to the macro, including the comma -before it. - - You can include comments in `configure.in' files by starting them -with the `m4' builtin macro `dnl', which discards text up through the -next newline. These comments do not appear in the generated -`configure' scripts. For example, it is helpful to begin -`configure.in' files with a line like this: - - dnl Process this file with autoconf to produce a configure script. - - -File: autoconf.info, Node: Invoking autoscan, Next: Invoking ifnames, Prev: Writing configure.in, Up: Making configure Scripts - -Using `autoscan' to Create `configure.in' -========================================= - - The `autoscan' program can help you create a `configure.in' file for -a software package. `autoscan' examines source files in the directory -tree rooted at a directory given as a command line argument, or the -current directory if none is given. It searches the source files for -common portability problems and creates a file `configure.scan' which -is a preliminary `configure.in' for that package. - - You should manually examine `configure.scan' before renaming it to -`configure.in'; it will probably need some adjustments. Occasionally -`autoscan' outputs a macro in the wrong order relative to another -macro, so that `autoconf' produces a warning; you need to move such -macros manually. Also, if you want the package to use a configuration -header file, you must add a call to `AC_CONFIG_HEADER' (*note -Configuration Headers::.). You might also have to change or add some -`#if' directives to your program in order to make it work with Autoconf -(*note Invoking ifnames::., for information about a program that can -help with that job). - - `autoscan' uses several data files, which are installed along with -the distributed Autoconf macro files, to determine which macros to -output when it finds particular symbols in a package's source files. -These files all have the same format. Each line consists of a symbol, -whitespace, and the Autoconf macro to output if that symbol is -encountered. Lines starting with `#' are comments. - - `autoscan' is only installed if you already have Perl installed. -`autoscan' accepts the following options: - -`--help' - Print a summary of the command line options and exit. - -`--macrodir=DIR' - Look for the data files in directory DIR instead of the default - installation directory. You can also set the `AC_MACRODIR' - environment variable to a directory; this option overrides the - environment variable. - -`--verbose' - Print the names of the files it examines and the potentially - interesting symbols it finds in them. This output can be - voluminous. - -`--version' - Print the version number of Autoconf and exit. - - -File: autoconf.info, Node: Invoking ifnames, Next: Invoking autoconf, Prev: Invoking autoscan, Up: Making configure Scripts - -Using `ifnames' to List Conditionals -==================================== - - `ifnames' can help when writing a `configure.in' for a software -package. It prints the identifiers that the package already uses in C -preprocessor conditionals. If a package has already been set up to -have some portability, this program can help you figure out what its -`configure' needs to check for. It may help fill in some gaps in a -`configure.in' generated by `autoscan' (*note Invoking autoscan::.). - - `ifnames' scans all of the C source files named on the command line -(or the standard input, if none are given) and writes to the standard -output a sorted list of all the identifiers that appear in those files -in `#if', `#elif', `#ifdef', or `#ifndef' directives. It prints each -identifier on a line, followed by a space-separated list of the files -in which that identifier occurs. - -`ifnames' accepts the following options: - -`--help' -`-h' - Print a summary of the command line options and exit. - -`--macrodir=DIR' -`-m DIR' - Look for the Autoconf macro files in directory DIR instead of the - default installation directory. Only used to get the version - number. You can also set the `AC_MACRODIR' environment variable - to a directory; this option overrides the environment variable. - -`--version' - Print the version number of Autoconf and exit. - - -File: autoconf.info, Node: Invoking autoconf, Next: Invoking autoreconf, Prev: Invoking ifnames, Up: Making configure Scripts - -Using `autoconf' to Create `configure' -====================================== - - To create `configure' from `configure.in', run the `autoconf' -program with no arguments. `autoconf' processes `configure.in' with -the `m4' macro processor, using the Autoconf macros. If you give -`autoconf' an argument, it reads that file instead of `configure.in' -and writes the configuration script to the standard output instead of -to `configure'. If you give `autoconf' the argument `-', it reads the -standard input instead of `configure.in' and writes the configuration -script on the standard output. - - The Autoconf macros are defined in several files. Some of the files -are distributed with Autoconf; `autoconf' reads them first. Then it -looks for the optional file `acsite.m4' in the directory that contains -the distributed Autoconf macro files, and for the optional file -`aclocal.m4' in the current directory. Those files can contain your -site's or the package's own Autoconf macro definitions (*note Writing -Macros::., for more information). If a macro is defined in more than -one of the files that `autoconf' reads, the last definition it reads -overrides the earlier ones. - - `autoconf' accepts the following options: - -`--help' -`-h' - Print a summary of the command line options and exit. - -`--localdir=DIR' -`-l DIR' - Look for the package file `aclocal.m4' in directory DIR instead of - in the current directory. - -`--macrodir=DIR' -`-m DIR' - Look for the installed macro files in directory DIR. You can also - set the `AC_MACRODIR' environment variable to a directory; this - option overrides the environment variable. - -`--version' - Print the version number of Autoconf and exit. - - -File: autoconf.info, Node: Invoking autoreconf, Prev: Invoking autoconf, Up: Making configure Scripts - -Using `autoreconf' to Update `configure' Scripts -================================================ - - If you have a lot of Autoconf-generated `configure' scripts, the -`autoreconf' program can save you some work. It runs `autoconf' (and -`autoheader', where appropriate) repeatedly to remake the Autoconf -`configure' scripts and configuration header templates in the directory -tree rooted at the current directory. By default, it only remakes -those files that are older than their `configure.in' or (if present) -`aclocal.m4'. Since `autoheader' does not change the timestamp of its -output file if the file wouldn't be changing, this is not necessarily -the minimum amount of work. If you install a new version of Autoconf, -you can make `autoreconf' remake *all* of the files by giving it the -`--force' option. - - If you give `autoreconf' the `--macrodir=DIR' or `--localdir=DIR' -options, it passes them down to `autoconf' and `autoheader' (with -relative paths adjusted properly). - - *Note Automatic Remaking::, for `Makefile' rules to automatically -remake `configure' scripts when their source files change. That method -handles the timestamps of configuration header templates properly, but -does not pass `--macrodir=DIR' or `--localdir=DIR'. - -`autoreconf' accepts the following options: - -`--help' -`-h' - Print a summary of the command line options and exit. - -`--force' -`-f' - Remake even `configure' scripts and configuration headers that are - newer than their input files (`configure.in' and, if present, - `aclocal.m4'). - -`--localdir=DIR' -`-l DIR' - Look for the package files `aclocal.m4' and `acconfig.h' (but not - `FILE.top' and `FILE.bot') in directory DIR instead of in the - directory containing each `configure.in'. - -`--macrodir=DIR' -`-m DIR' - Look for the Autoconf macro files in directory DIR instead of the - default installation directory. You can also set the `AC_MACRODIR' - environment variable to a directory; this option overrides the - environment variable. - -`--verbose' - Print the name of each directory where `autoreconf' runs - `autoconf' (and `autoheader', if appropriate). - -`--version' - Print the version number of Autoconf and exit. - - -File: autoconf.info, Node: Setup, Next: Existing Tests, Prev: Making configure Scripts, Up: Top - -Initialization and Output Files -******************************* - - Autoconf-generated `configure' scripts need some information about -how to initialize, such as how to find the package's source files; and -about the output files to produce. The following sections describe -initialization and creating output files. - -* Menu: - -* Input:: Where Autoconf should find files. -* Output:: Creating output files. -* Makefile Substitutions:: Using output variables in `Makefile's. -* Configuration Headers:: Creating a configuration header file. -* Subdirectories:: Configuring independent packages together. -* Default Prefix:: Changing the default installation prefix. -* Versions:: Version numbers in `configure'. - - -File: autoconf.info, Node: Input, Next: Output, Up: Setup - -Finding `configure' Input -========================= - - Every `configure' script must call `AC_INIT' before doing anything -else. The only other required macro is `AC_OUTPUT' (*note Output::.). - - - Macro: AC_INIT (UNIQUE-FILE-IN-SOURCE-DIR) - Process any command-line arguments and find the source code - directory. UNIQUE-FILE-IN-SOURCE-DIR is some file that is in the - package's source directory; `configure' checks for this file's - existence to make sure that the directory that it is told contains - the source code in fact does (*note Invoking configure::., for - more information). - - Packages that do manual configuration or use the `install' program -might need to tell `configure' where to find some other shell scripts -by calling `AC_CONFIG_AUX_DIR', though the default places it looks are -correct for most cases. - - - Macro: AC_CONFIG_AUX_DIR(DIR) - Use the `install-sh', `config.sub', `config.guess', and Cygnus - `configure' scripts that are in directory DIR. These are - auxiliary files used in configuration. DIR can be either absolute - or relative to `SRCDIR'. The default is `SRCDIR' or `SRCDIR/..' or - `SRCDIR/../..', whichever is the first that contains `install-sh'. - The other files are not checked for, so that using - `AC_PROG_INSTALL' does not automatically require distributing the - other auxiliary files. It checks for `install.sh' also, but that - name is obsolete because some `make' programs have a rule that - creates `install' from it if there is no `Makefile'. - - -File: autoconf.info, Node: Output, Next: Makefile Substitutions, Prev: Input, Up: Setup - -Creating Output Files -===================== - - Every Autoconf-generated `configure' script must finish by calling -`AC_OUTPUT'. It is the macro that creates the `Makefile's and optional -other files resulting from configuration. The only other required -macro is `AC_INIT' (*note Input::.). - - - Macro: AC_OUTPUT ([FILE...] [,EXTRA-CMDS] [,INIT-CMDS]) - Create output files. The FILE... argument is a - whitespace-separated list of output files; it may be empty. This - macro creates each file `FILE' by copying an input file (by default - named `FILE.in'), substituting the output variable values. *Note - Makefile Substitutions::, for more information on using output - variables. *Note Setting Output Variables::, for more information - on creating them. This macro creates the directory that the file - is in if it doesn't exist (but not the parents of that directory). - Usually, `Makefile's are created this way, but other files, such - as `.gdbinit', can be specified as well. - - If `AC_CONFIG_HEADER', `AC_LINK_FILES', or `AC_CONFIG_SUBDIRS' has - been called, this macro also creates the files named as their - arguments. - - A typical call to `AC_OUTPUT' looks like this: - AC_OUTPUT(Makefile src/Makefile man/Makefile X/Imakefile) - - You can override an input file name by appending it to FILE, - separated by a colon. For example, - AC_OUTPUT(Makefile:templates/top.mk lib/Makefile:templates/lib.mk) - - If you pass EXTRA-CMDS, those commands will be inserted into - `config.status' to be run after all its other processing. If - INIT-CMDS are given, they are inserted just before EXTRA-CMDS, - with shell variable, command, and backslash substitutions - performed on them in `configure'. You can use INIT-CMDS to pass - variables from `configure' to the EXTRA-CMDS. - - If you run `make' on subdirectories, you should run it using the -`make' variable `MAKE'. Most versions of `make' set `MAKE' to the name -of the `make' program plus any options it was given. (But many do not -include in it the values of any variables set on the command line, so -those are not passed on automatically.) Some old versions of `make' do -not set this variable. The following macro allows you to use it even -with those versions. - - - Macro: AC_PROG_MAKE_SET - If `make' predefines the variable `MAKE', define output variable - `SET_MAKE' to be empty. Otherwise, define `SET_MAKE' to contain - `MAKE=make'. Calls `AC_SUBST' for `SET_MAKE'. - - To use this macro, place a line like this in each `Makefile.in' that -runs `MAKE' on other directories: - - @SET_MAKE@ - - -File: autoconf.info, Node: Makefile Substitutions, Next: Configuration Headers, Prev: Output, Up: Setup - -Substitutions in Makefiles -========================== - - Each subdirectory in a distribution that contains something to be -compiled or installed should come with a file `Makefile.in', from which -`configure' will create a `Makefile' in that directory. To create a -`Makefile', `configure' performs a simple variable substitution, -replacing occurrences of `@VARIABLE@' in `Makefile.in' with the value -that `configure' has determined for that variable. Variables that are -substituted into output files in this way are called "output -variables". They are ordinary shell variables that are set in -`configure'. To make `configure' substitute a particular variable into -the output files, the macro `AC_SUBST' must be called with that -variable name as an argument. Any occurrences of `@VARIABLE@' for -other variables are left unchanged. *Note Setting Output Variables::, -for more information on creating output variables with `AC_SUBST'. - - A software package that uses a `configure' script should be -distributed with a file `Makefile.in', but no `Makefile'; that way, the -user has to properly configure the package for the local system before -compiling it. - - *Note Makefile Conventions: (standards.info)Makefile Conventions, -for more information on what to put in `Makefile's. - -* Menu: - -* Preset Output Variables:: Output variables that are always set. -* Build Directories:: Compiling in a different directory. -* Automatic Remaking:: Makefile rules for configuring. - - -File: autoconf.info, Node: Preset Output Variables, Next: Build Directories, Up: Makefile Substitutions - -Preset Output Variables ------------------------ - - Some output variables are preset by the Autoconf macros. Some of the -Autoconf macros set additional output variables, which are mentioned in -the descriptions for those macros. *Note Output Variable Index::, for a -complete list of output variables. Here is what each of the preset ones -contains. - - - Variable: configure_input - A comment saying that the file was generated automatically by - `configure' and giving the name of the input file. `AC_OUTPUT' - adds a comment line containing this variable to the top of every - `Makefile' it creates. For other files, you should reference this - variable in a comment at the top of each input file. For example, - an input shell script should begin like this: - - #!/bin/sh - # @configure_input@ - - The presence of that line also reminds people editing the file - that it needs to be processed by `configure' in order to be used. - - - Variable: exec_prefix - The installation prefix for architecture-dependent files. - - - Variable: prefix - The installation prefix for architecture-independent files. - - - Variable: srcdir - The directory that contains the source code for that `Makefile'. - - - Variable: top_srcdir - The top-level source code directory for the package. In the - top-level directory, this is the same as `srcdir'. - - - Variable: CFLAGS - Debugging and optimization options for the C compiler. If it is - not set in the environment when `configure' runs, the default - value is set when you call `AC_PROG_CC' (or empty if you don't). - `configure' uses this variable when compiling programs to test for - C features. - - - Variable: CPPFLAGS - Header file search directory (`-IDIR') and any other miscellaneous - options for the C preprocessor and compiler. If it is not set in - the environment when `configure' runs, the default value is empty. - `configure' uses this variable when compiling or preprocessing - programs to test for C features. - - - Variable: CXXFLAGS - Debugging and optimization options for the C++ compiler. If it is - not set in the environment when `configure' runs, the default - value is set when you call `AC_PROG_CXX' (or empty if you don't). - `configure' uses this variable when compiling programs to test for - C++ features. - - - Variable: DEFS - `-D' options to pass to the C compiler. If `AC_CONFIG_HEADER' is - called, `configure' replaces `@DEFS@' with `-DHAVE_CONFIG_H' - instead (*note Configuration Headers::.). This variable is not - defined while `configure' is performing its tests, only when - creating the output files. *Note Setting Output Variables::, for - how to check the results of previous tests. - - - Variable: LDFLAGS - Stripping (`-s') and any other miscellaneous options for the - linker. If it is not set in the environment when `configure' runs, - the default value is empty. `configure' uses this variable when - linking programs to test for C features. - - - Variable: LIBS - `-l' and `-L' options to pass to the linker. - - -File: autoconf.info, Node: Build Directories, Next: Automatic Remaking, Prev: Preset Output Variables, Up: Makefile Substitutions - -Build Directories ------------------ - - You might want to compile a software package in a different directory -from the one that contains the source code. Doing this allows you to -compile the package for several architectures simultaneously from the -same copy of the source code and keep multiple sets of object files on -disk. - - To support doing this, `make' uses the `VPATH' variable to find the -files that are in the source directory. GNU `make' and most other -recent `make' programs can do this. Older `make' programs do not -support `VPATH'; when using them, the source code must be in the same -directory as the object files. - - To support `VPATH', each `Makefile.in' should contain two lines that -look like: - - srcdir = @srcdir@ - VPATH = @srcdir@ - - Do not set `VPATH' to the value of another variable, for example -`VPATH = $(srcdir)', because some versions of `make' do not do variable -substitutions on the value of `VPATH'. - - `configure' substitutes in the correct value for `srcdir' when it -produces `Makefile.in'. - - Do not use the `make' variable `$<', which expands to the pathname -of the file in the source directory (found with `VPATH'), except in -implicit rules. (An implicit rule is one such as `.c.o', which tells -how to create a `.o' file from a `.c' file.) Some versions of `make' -do not set `$<' in explicit rules; they expand it to an empty value. - - Instead, `Makefile' command lines should always refer to source -files by prefixing them with `$(srcdir)/'. For example: - - time.info: time.texinfo - $(MAKEINFO) $(srcdir)/time.texinfo - - -File: autoconf.info, Node: Automatic Remaking, Prev: Build Directories, Up: Makefile Substitutions - -Automatic Remaking ------------------- - - You can put rules like the following in the top-level `Makefile.in' -for a package to automatically update the configuration information when -you change the configuration files. This example includes all of the -optional files, such as `aclocal.m4' and those related to configuration -header files. Omit from the `Makefile.in' rules any of these files -that your package does not use. - - The `${srcdir}/' prefix is included because of limitations in the -`VPATH' mechanism. - - The `stamp-' files are necessary because the timestamps of -`config.h.in' and `config.h' will not be changed if remaking them does -not change their contents. This feature avoids unnecessary -recompilation. You should include the file `stamp-h.in' your package's -distribution, so `make' will consider `config.h.in' up to date. On -some old BSD systems, `touch' or any command that results in an empty -file does not update the timestamps, so use a command like `date' as a -workaround. - - ${srcdir}/configure: configure.in aclocal.m4 - cd ${srcdir} && autoconf - - # autoheader might not change config.h.in, so touch a stamp file. - ${srcdir}/config.h.in: stamp-h.in - ${srcdir}/stamp-h.in: configure.in aclocal.m4 acconfig.h \ - config.h.top config.h.bot - cd ${srcdir} && autoheader - date > ${srcdir}/stamp-h.in - - config.h: stamp-h - stamp-h: config.h.in config.status - ./config.status - - Makefile: Makefile.in config.status - ./config.status - - config.status: configure - ./config.status --recheck - - In addition, you should pass `date > stamp-h' in the EXTRA-CMDS -argument to `AC_OUTPUT', so `config.status' will ensure that `config.h' -is considered up to date. *Note Output::, for more information about -`AC_OUTPUT'. - - *Note Invoking config.status::, for more examples of handling -configuration-related dependencies. - - -File: autoconf.info, Node: Configuration Headers, Next: Subdirectories, Prev: Makefile Substitutions, Up: Setup - -Configuration Header Files -========================== - - When a package tests more than a few C preprocessor symbols, the -command lines to pass `-D' options to the compiler can get quite long. -This causes two problems. One is that the `make' output is hard to -visually scan for errors. More seriously, the command lines can exceed -the length limits of some operating systems. As an alternative to -passing `-D' options to the compiler, `configure' scripts can create a -C header file containing `#define' directives. The `AC_CONFIG_HEADER' -macro selects this kind of output. It should be called right after -`AC_INIT'. - - The package should `#include' the configuration header file before -any other header files, to prevent inconsistencies in declarations (for -example, if it redefines `const'). Use `#include <config.h>' instead -of `#include "config.h"', and pass the C compiler a `-I.' option (or -`-I..'; whichever directory contains `config.h'). That way, even if -the source directory is configured itself (perhaps to make a -distribution), other build directories can also be configured without -finding the `config.h' from the source directory. - - - Macro: AC_CONFIG_HEADER (HEADER-TO-CREATE ...) - Make `AC_OUTPUT' create the file(s) in the whitespace-separated - list HEADER-TO-CREATE containing C preprocessor `#define' - statements, and replace `@DEFS@' in generated files with - `-DHAVE_CONFIG_H' instead of the value of `DEFS'. The usual name - for HEADER-TO-CREATE is `config.h'. - - If HEADER-TO-CREATE already exists and its contents are identical - to what `AC_OUTPUT' would put in it, it is left alone. Doing this - allows some changes in configuration without needlessly causing - object files that depend on the header file to be recompiled. - - Usually the input file is named `HEADER-TO-CREATE.in'; however, - you can override the input file name by appending it to - HEADER-TO-CREATE, separated by a colon. For example, - AC_CONFIG_HEADER(defines.h:defines.hin) - - Doing this allows you to keep your filenames acceptable to MS-DOS. - -* Menu: - -* Header Templates:: Input for the configuration headers. -* Invoking autoheader:: How to create configuration templates. - - -File: autoconf.info, Node: Header Templates, Next: Invoking autoheader, Up: Configuration Headers - -Configuration Header Templates ------------------------------- - - Your distribution should contain a template file that looks as you -want the final header file to look, including comments, with default -values in the `#define' statements. For example, suppose your -`configure.in' makes these calls: - - AC_CONFIG_HEADER(conf.h) - AC_CHECK_HEADERS(unistd.h) - -Then you could have code like the following in `conf.h.in'. On systems -that have `unistd.h', `configure' will change the 0 to a 1. On other -systems, it will leave the line unchanged. - - /* Define as 1 if you have unistd.h. */ - #define HAVE_UNISTD_H 0 - - Alternately, if your code tests for configuration options using -`#ifdef' instead of `#if', a default value can be to `#undef' the -variable instead of to define it to a value. On systems that have -`unistd.h', `configure' will change the second line to read `#define -HAVE_UNISTD_H 1'. On other systems, it will comment that line out (in -case the system predefines that symbol). - - /* Define if you have unistd.h. */ - #undef HAVE_UNISTD_H - - -File: autoconf.info, Node: Invoking autoheader, Prev: Header Templates, Up: Configuration Headers - -Using `autoheader' to Create `config.h.in' ------------------------------------------- - - The `autoheader' program can create a template file of C `#define' -statements for `configure' to use. If `configure.in' invokes -`AC_CONFIG_HEADER(FILE)', `autoheader' creates `FILE.in'. Otherwise, -`autoheader' creates `config.h.in'. - - If you give `autoheader' an argument, it uses that file instead of -`configure.in' and writes the header file to the standard output -instead of to `config.h.in'. If you give `autoheader' an argument of -`-', it reads the standard input instead of `configure.in' and writes -the header file to the standard output. - - `autoheader' scans `configure.in' and figures out which C -preprocessor symbols it might define. It copies comments and `#define' -and `#undef' statements from a file called `acconfig.h', which comes -with and is installed with Autoconf. It also uses a file called -`acconfig.h' in the current directory, if present. If you `AC_DEFINE' -any additional symbols, you must create that file with entries for -them. For symbols defined by `AC_CHECK_HEADERS', `AC_CHECK_FUNCS', -`AC_CHECK_SIZEOF', or `AC_CHECK_LIB', `autoheader' generates comments -and `#undef' statements itself rather than copying them from a file, -since the possible symbols are effectively limitless. - - The file that `autoheader' creates contains mainly `#define' and -`#undef' statements and their accompanying comments. If `./acconfig.h' -contains the string `@TOP@', `autoheader' copies the lines before the -line containing `@TOP@' into the top of the file that it generates. -Similarly, if `./acconfig.h' contains the string `@BOTTOM@', -`autoheader' copies the lines after that line to the end of the file it -generates. Either or both of those strings may be omitted. - - An alternate way to produce the same effect is to create the files -`FILE.top' (typically `config.h.top') and/or `FILE.bot' in the current -directory. If they exist, `autoheader' copies them to the beginning -and end, respectively, of its output. Their use is discouraged because -they have file names that contain two periods, and so can not be stored -on MS-DOS; also, they are two more files to clutter up the directory. -But if you use the `--localdir=DIR' option to use an `acconfig.h' in -another directory, they give you a way to put custom boilerplate in each -individual `config.h.in'. - - `autoheader' accepts the following options: - -`--help' -`-h' - Print a summary of the command line options and exit. - -`--localdir=DIR' -`-l DIR' - Look for the package files `aclocal.m4' and `acconfig.h' (but not - `FILE.top' and `FILE.bot') in directory DIR instead of in the - current directory. - -`--macrodir=DIR' -`-m DIR' - Look for the installed macro files and `acconfig.h' in directory - DIR. You can also set the `AC_MACRODIR' environment variable to a - directory; this option overrides the environment variable. - -`--version' - Print the version number of Autoconf and exit. - - -File: autoconf.info, Node: Subdirectories, Next: Default Prefix, Prev: Configuration Headers, Up: Setup - -Configuring Other Packages in Subdirectories -============================================ - - In most situations, calling `AC_OUTPUT' is sufficient to produce -`Makefile's in subdirectories. However, `configure' scripts that -control more than one independent package can use `AC_CONFIG_SUBDIRS' -to run `configure' scripts for other packages in subdirectories. - - - Macro: AC_CONFIG_SUBDIRS (DIR ...) - Make `AC_OUTPUT' run `configure' in each subdirectory DIR in the - given whitespace-separated list. If a given DIR is not found, no - error is reported, so a `configure' script can configure whichever - parts of a large source tree are present. If a given DIR contains - `configure.in' but no `configure', the Cygnus `configure' script - found by `AC_CONFIG_AUXDIR' is used. The subdirectory `configure' - scripts are given the same command line options that were given to - this `configure' script, with minor changes if needed (e.g., to - adjust a relative path for the cache file or source directory). - This macro also sets the output variable `subdirs' to the list of - directories `DIR ...'. `Makefile' rules can use this variable to - determine which subdirectories to recurse into. - - -File: autoconf.info, Node: Default Prefix, Next: Versions, Prev: Subdirectories, Up: Setup - -Default Prefix -============== - - By default, `configure' sets the prefix for files it installs to -`/usr/local'. The user of `configure' can select a different prefix -using the `--prefix' and `--exec-prefix' options. There are two ways -to change the default: when creating `configure', and when running it. - - Some software packages might want to install in a directory besides -`/usr/local' by default. To accomplish that, use the -`AC_PREFIX_DEFAULT' macro. - - - Macro: AC_PREFIX_DEFAULT (PREFIX) - Set the default installation prefix to PREFIX instead of - `/usr/local'. - - It may be convenient for users to have `configure' guess the -installation prefix from the location of a related program that they -have already installed. If you wish to do that, you can call -`AC_PREFIX_PROGRAM'. - - - Macro: AC_PREFIX_PROGRAM (PROGRAM) - If the user did not specify an installation prefix (using the - `--prefix' option), guess a value for it by looking for PROGRAM in - `PATH', the way the shell does. If PROGRAM is found, set the - prefix to the parent of the directory containing PROGRAM; - otherwise leave the prefix specified in `Makefile.in' unchanged. - For example, if PROGRAM is `gcc' and the `PATH' contains - `/usr/local/gnu/bin/gcc', set the prefix to `/usr/local/gnu'. - diff --git a/util/autoconf/autoconf.info-2 b/util/autoconf/autoconf.info-2 deleted file mode 100644 index ae8fc7b..0000000 --- a/util/autoconf/autoconf.info-2 +++ /dev/null @@ -1,1214 +0,0 @@ -This is Info file autoconf.info, produced by Makeinfo-1.55 from the -input file ./autoconf.texi. - -START-INFO-DIR-ENTRY -* Autoconf: (autoconf). Create source code configuration scripts. -END-INFO-DIR-ENTRY - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. - - Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Foundation. - - -File: autoconf.info, Node: Versions, Prev: Default Prefix, Up: Setup - -Version Numbers in `configure' -============================== - - The following macros manage version numbers for `configure' scripts. -Using them is optional. - - - Macro: AC_PREREQ (VERSION) - Ensure that a recent enough version of Autoconf is being used. If - the version of Autoconf being used to create `configure' is earlier - than VERSION, print an error message on the standard error output - and do not create `configure'. For example: - - AC_PREREQ(1.8) - - This macro is useful if your `configure.in' relies on non-obvious - behavior that changed between Autoconf releases. If it merely - needs recently added macros, then `AC_PREREQ' is less useful, - because the `autoconf' program already tells the user which macros - are not found. The same thing happens if `configure.in' is - processed by a version of Autoconf older than when `AC_PREREQ' was - added. - - - Macro: AC_REVISION (REVISION-INFO) - Copy revision stamp REVISION-INFO into the `configure' script, - with any dollar signs or double-quotes removed. This macro lets - you put a revision stamp from `configure.in' into `configure' - without RCS or CVS changing it when you check in `configure'. That - way, you can determine easily which revision of `configure.in' a - particular `configure' corresponds to. - - It is a good idea to call this macro before `AC_INIT' so that the - revision number is near the top of both `configure.in' and - `configure'. To support doing that, the `AC_REVISION' output - begins with `#!/bin/sh', like the normal start of a `configure' - script does. - - For example, this line in `configure.in': - - AC_REVISION($Revision$)dnl - - produces this in `configure': - - #!/bin/sh - # From configure.in Revision: 1.30 - - -File: autoconf.info, Node: Existing Tests, Next: Writing Tests, Prev: Setup, Up: Top - -Existing Tests -************** - - These macros test for particular system features that packages might -need or want to use. If you need to test for a kind of feature that -none of these macros check for, you can probably do it by calling -primitive test macros with appropriate arguments (*note Writing -Tests::.). - - These tests print messages telling the user which feature they're -checking for, and what they find. They cache their results for future -`configure' runs (*note Caching Results::.). - - Some of these macros set output variables. *Note Makefile -Substitutions::, for how to get their values. The phrase "define NAME" -is used below as a shorthand to mean "define C preprocessor symbol NAME -to the value 1". *Note Defining Symbols::, for how to get those symbol -definitions into your program. - -* Menu: - -* Alternative Programs:: Selecting between alternative programs. -* Libraries:: Library archives that might be missing. -* Library Functions:: C library functions that might be missing. -* Header Files:: Header files that might be missing. -* Structures:: Structures or members that might be missing. -* Typedefs:: `typedef's that might be missing. -* Compiler Characteristics:: C compiler or machine architecture features. -* System Services:: Operating system services. -* UNIX Variants:: Special kludges for specific UNIX variants. - - -File: autoconf.info, Node: Alternative Programs, Next: Libraries, Up: Existing Tests - -Alternative Programs -==================== - - These macros check for the presence or behavior of particular -programs. They are used to choose between several alternative programs -and to decide what to do once one has been chosen. If there is no -macro specifically defined to check for a program you need, and you -don't need to check for any special properties of it, then you can use -one of the general program check macros. - -* Menu: - -* Particular Programs:: Special handling to find certain programs. -* Generic Programs:: How to find other programs. - - -File: autoconf.info, Node: Particular Programs, Next: Generic Programs, Up: Alternative Programs - -Particular Program Checks -------------------------- - - These macros check for particular programs--whether they exist, and -in some cases whether they support certain features. - - - Macro: AC_DECL_YYTEXT - Define `YYTEXT_POINTER' if `yytext' is a `char *' instead of a - `char []'. Also set output variable `LEX_OUTPUT_ROOT' to the base - of the file name that the lexer generates; usually `lex.yy', but - sometimes something else. These results vary according to whether - `lex' or `flex' is being used. - - - Macro: AC_PROG_AWK - Check for `mawk', `gawk', `nawk', and `awk', in that order, and - set output variable `AWK' to the first one that it finds. It - tries `mawk' first because that is reported to be the fastest - implementation. - - - Macro: AC_PROG_CC - Determine a C compiler to use. If `CC' is not already set in the - environment, check for `gcc', and use `cc' if it's not found. Set - output variable `CC' to the name of the compiler found. - - If using the GNU C compiler, set shell variable `GCC' to `yes', - empty otherwise. If output variable `CFLAGS' was not already set, - set it to `-g -O' for the GNU C compiler (`-O' on systems where - GCC does not accept `-g'), or `-g' for other compilers. - - - Macro: AC_PROG_CC_C_O - If the C compiler does not accept the `-c' and `-o' options - simultaneously, define `NO_MINUS_C_MINUS_O'. - - - Macro: AC_PROG_CPP - Set output variable `CPP' to a command that runs the C - preprocessor. If `$CC -E' doesn't work, it uses `/lib/cpp'. It - is only portable to run `CPP' on files with a `.c' extension. - - If the current language is C (*note Language Choice::.), many of - the specific test macros use the value of `CPP' indirectly by - calling `AC_TRY_CPP', `AC_CHECK_HEADER', `AC_EGREP_HEADER', or - `AC_EGREP_CPP'. - - - Macro: AC_PROG_CXX - Determine a C++ compiler to use. Check if the environment variable - `CXX' or `CCC' (in that order) is set; if so, set output variable - `CXX' to its value. Otherwise search for a C++ compiler under - likely names (`c++', `g++', `gcc', `CC', and `cxx'). If none of - those checks succeed, as a last resort set `CXX' to `gcc'. - - If using the GNU C++ compiler, set shell variable `GXX' to `yes', - empty otherwise. If output variable `CXXFLAGS' was not already - set, set it to `-g -O' for the GNU C++ compiler (`-O' on systems - where G++ does not accept `-g'), or `-g' for other compilers. - - - Macro: AC_PROG_CXXCPP - Set output variable `CXXCPP' to a command that runs the C++ - preprocessor. If `$CXX -E' doesn't work, it uses `/lib/cpp'. It - is only portable to run `CXXCPP' on files with a `.c', `.C', or - `.cc' extension. - - If the current language is C++ (*note Language Choice::.), many of - the specific test macros use the value of `CXXCPP' indirectly by - calling `AC_TRY_CPP', `AC_CHECK_HEADER', `AC_EGREP_HEADER', or - `AC_EGREP_CPP'. - - - Macro: AC_PROG_GCC_TRADITIONAL - Add `-traditional' to output variable `CC' if using the GNU C - compiler and `ioctl' does not work properly without - `-traditional'. That usually happens when the fixed header files - have not been installed on an old system. Since recent versions - of the GNU C compiler fix the header files automatically when - installed, this is becoming a less prevalent problem. - - - Macro: AC_PROG_INSTALL - Set output variable `INSTALL' to the path of a BSD compatible - `install' program, if one is found in the current `PATH'. - Otherwise, set `INSTALL' to `DIR/install-sh -c', checking the - directories specified to `AC_CONFIG_AUX_DIR' (or its default - directories) to determine DIR (*note Output::.). Also set the - variable `INSTALL_PROGRAM' to `${INSTALL}' and `INSTALL_DATA' to - `${INSTALL} -m 644'. - - This macro screens out various instances of `install' known to not - work. It prefers to find a C program rather than a shell script, - for speed. Instead of `install-sh', it can also use `install.sh', - but that name is obsolete because some `make' programs have a rule - that creates `install' from it if there is no `Makefile'. - - A copy of `install-sh' which you may use comes with Autoconf. If - you use `AC_PROG_INSTALL', you must include either `install-sh' or - `install.sh' in your distribution, or `configure' will produce an - error message saying it can't find them--even if the system you're - on has a good `install' program. This check is a safety measure - to prevent you from accidentally leaving that file out, which - would prevent your package from installing on systems that don't - have a BSD-compatible `install' program. - - If you need to use your own installation program because it has - features not found in standard `install' programs, there is no - reason to use `AC_PROG_INSTALL'; just put the pathname of your - program into your `Makefile.in' files. - - - Macro: AC_PROG_LEX - If `flex' is found, set output variable `LEX' to `flex' and - `LEXLIB' to `-lfl', if that library is in a standard place. - Otherwise set `LEX' to `lex' and `LEXLIB' to `-ll'. - - - Macro: AC_PROG_LN_S - If `ln -s' works on the current filesystem (the operating system - and filesystem support symbolic links), set output variable `LN_S' - to `ln -s', otherwise set it to `ln'. - - - Macro: AC_PROG_RANLIB - Set output variable `RANLIB' to `ranlib' if `ranlib' is found, - otherwise to `:' (do nothing). - - - Macro: AC_PROG_YACC - If `bison' is found, set output variable `YACC' to `bison -y'. - Otherwise, if `byacc' is found, set `YACC' to `byacc'. Otherwise - set `YACC' to `yacc'. - - -File: autoconf.info, Node: Generic Programs, Prev: Particular Programs, Up: Alternative Programs - -Generic Program Checks ----------------------- - - These macros are used to find programs not covered by the particular -test macros. If you need to check the behavior of a program as well as -find out whether it is present, you have to write your own test for it -(*note Writing Tests::.). - - - Macro: AC_CHECK_PROG (VARIABLE, PROG-TO-CHECK-FOR, VALUE-IF-FOUND [, - VALUE-IF-NOT-FOUND]) - Check whether program PROG-TO-CHECK-FOR exists in `PATH'. If it - is found, set VARIABLE to VALUE-IF-FOUND, otherwise to - VALUE-IF-NOT-FOUND, if given. If VARIABLE was already set, do - nothing. Calls `AC_SUBST' for VARIABLE. - - - Macro: AC_CHECK_PROGS (VARIABLE, PROGS-TO-CHECK-FOR [, - VALUE-IF-NOT-FOUND]) - Check for each program in the whitespace-separated list - PROGS-TO-CHECK-FOR exists in `PATH'. If it is found, set VARIABLE - to the name of that program. Otherwise, continue checking the - next program in the list. If none of the programs in the list are - found, set VARIABLE to VALUE-IF-NOT-FOUND; if VALUE-IF-NOT-FOUND - is not specified, the value of VARIABLE is not changed. Calls - `AC_SUBST' for VARIABLE. - - - Macro: AC_PATH_PROG (VARIABLE, PROG-TO-CHECK-FOR [, - VALUE-IF-NOT-FOUND]) - Like `AC_CHECK_PROG', but set VARIABLE to the entire path of - PROG-TO-CHECK-FOR if found. - - - Macro: AC_PATH_PROGS (VARIABLE, PROGS-TO-CHECK-FOR [, - VALUE-IF-NOT-FOUND]) - Like `AC_CHECK_PROGS', but if any of PROGS-TO-CHECK-FOR are found, - set VARIABLE to the entire path of the program found. - - -File: autoconf.info, Node: Libraries, Next: Library Functions, Prev: Alternative Programs, Up: Existing Tests - -Library Files -============= - - The following macros check for the presence of certain C library -archive files. - - - Macro: AC_CHECK_LIB (LIBRARY, FUNCTION [, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) - Try to ensure that C function FUNCTION is available by checking - whether a test C program can be linked with the library LIBRARY to - get the function. LIBRARY is the base name of the library; e.g., - to check for `-lmp', use `mp' as the LIBRARY argument. - - ACTION-IF-FOUND is a list of shell commands to run if the link - with the library succeeds; ACTION-IF-NOT-FOUND is a list of shell - commands to run if the link fails. If ACTION-IF-FOUND and - ACTION-IF-NOT-FOUND are not specified, the default action is to - add `-lLIBRARY' to `LIBS' and define `HAVE_LIBLIBRARY' (in all - capitals). - - If linking with LIBRARY results in unresolved symbols, which would - be resolved by linking with additional libraries, give those - libraries as the OTHER-LIBRARIES argument, separated by spaces: - `-lX11 -lXt'. Otherwise this macro will fail to detect that - LIBRARY is present, because linking the test program will always - fail with unresolved symbols. - - - Macro: AC_HAVE_LIBRARY (LIBRARY, [, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) - This macro is equivalent to calling `AC_CHECK_LIB' with a FUNCTION - argument of `main'. In addition, LIBRARY can be written as any of - `foo', `-lfoo', or `libfoo.a'. In all of those cases, the - compiler is passed `-lfoo'. However, LIBRARY can not be a shell - variable; it must be a literal name. This macro is considered - obsolete. - - -File: autoconf.info, Node: Library Functions, Next: Header Files, Prev: Libraries, Up: Existing Tests - -Library Functions -================= - - The following macros check for particular C library functions. If -there is no macro specifically defined to check for a function you need, -and you don't need to check for any special properties of it, then you -can use one of the general function check macros. - -* Menu: - -* Particular Functions:: Special handling to find certain functions. -* Generic Functions:: How to find other functions. - - -File: autoconf.info, Node: Particular Functions, Next: Generic Functions, Up: Library Functions - -Particular Function Checks --------------------------- - - These macros check for particular C functions--whether they exist, -and in some cases how they respond when given certain arguments. - - - Macro: AC_FUNC_ALLOCA - Check how to get `alloca'. Tries to get a builtin version by - checking for `alloca.h' or the predefined C preprocessor macros - `__GNUC__' and `_AIX'. If this macro finds `alloca.h', it defines - `HAVE_ALLOCA_H'. - - If those attempts fail, it looks for the function in the standard C - library. If any of those methods succeed, it defines - `HAVE_ALLOCA'. Otherwise, it sets the output variable `ALLOCA' to - `alloca.o' and defines `C_ALLOCA' (so programs can periodically - call `alloca(0)' to garbage collect). This variable is separate - from `LIBOBJS' so multiple programs can share the value of - `ALLOCA' without needing to create an actual library, in case only - some of them use the code in `LIBOBJS'. - - This macro does not try to get `alloca' from the System V R3 - `libPW' or the System V R4 `libucb' because those libraries - contain some incompatible functions that cause trouble. Some - versions do not even contain `alloca' or contain a buggy version. - If you still want to use their `alloca', use `ar' to extract - `alloca.o' from them instead of compiling `alloca.c'. - - Source files that use `alloca' should start with a piece of code - like the following, to declare it properly. In some versions of - AIX, the declaration of `alloca' must precede everything else - except for comments and preprocessor directives. The `#pragma' - directive is indented so that pre-ANSI C compilers will ignore it, - rather than choke on it. - - /* AIX requires this to be the first thing in the file. */ - #ifdef __GNUC__ - # define alloca __builtin_alloca - #else - # if HAVE_ALLOCA_H - # include <alloca.h> - # else - # ifdef _AIX - #pragma alloca - # else - # ifndef alloca /* predefined by HP cc +Olibcalls */ - char *alloca (); - # endif - # endif - # endif - #endif - - - Macro: AC_FUNC_CLOSEDIR_VOID - If the `closedir' function does not return a meaningful value, - define `CLOSEDIR_VOID'. Otherwise, callers ought to check its - return value for an error indicator. - - - Macro: AC_FUNC_GETLOADAVG - Check how to get the system load averages. If the system has the - `getloadavg' function, this macro defines `HAVE_GETLOADAVG', and - adds to `LIBS' any libraries needed to get that function. - - Otherwise, it adds `getloadavg.o' to the output variable - `LIBOBJS', and possibly defines several other C preprocessor - macros and output variables: - - 1. It defines `SVR4', `DGUX', `UMAX', or `UMAX4_3' if on those - systems. - - 2. If it finds `nlist.h', it defines `NLIST_STRUCT'. - - 3. If `struct nlist' has an `n_un' member, it defines - `NLIST_NAME_UNION'. - - 4. If compiling `getloadavg.c' defines `LDAV_PRIVILEGED', - programs need to be installed specially on this system for - `getloadavg' to work, and this macro defines - `GETLOADAVG_PRIVILEGED'. - - 5. This macro sets the output variable `NEED_SETGID'. The value - is `true' if special installation is required, `false' if not. - If `NEED_SETGID' is `true', this macro sets `KMEM_GROUP' to - the name of the group that should own the installed program. - - - Macro: AC_FUNC_GETMNTENT - Check for the `getmntent' in the `sun' and `seq' libraries, for - Irix 4 and PTX, respectively. Then, if `getmntent' is available, - define `HAVE_GETMNTENT'. - - - Macro: AC_FUNC_MEMCMP - If the `memcmp' function is not available, or does not work on - 8-bit data (like the one on SunOS 4.1.3), add `memcmp.o' to output - variable `LIBOBJS'. - - - Macro: AC_FUNC_MMAP - If the `mmap' function exists and works correctly on memory mapped - files, define `HAVE_MMAP'. - - - Macro: AC_FUNC_SETVBUF_REVERSED - If `setvbuf' takes the buffering type as its second argument and - the buffer pointer as the third, instead of the other way around, - define `SETVBUF_REVERSED'. This is the case on System V before - release 3. - - - Macro: AC_FUNC_STRCOLL - If the `strcoll' function exists and works correctly, define - `HAVE_STRCOLL'. This does a bit more than - `AC_CHECK_FUNCS(strcoll)', because some systems have incorrect - definitions of `strcoll', which should not be used. - - - Macro: AC_FUNC_STRFTIME - Check for `strftime' in the `intl' library, for SCO UNIX. Then, - if `strftime' is available, define `HAVE_STRFTIME'. - - - Macro: AC_FUNC_UTIME_NULL - If `utime(FILE, NULL)' sets FILE's timestamp to the present, - define `HAVE_UTIME_NULL'. - - - Macro: AC_FUNC_VFORK - If `vfork.h' is found, define `HAVE_VFORK_H'. If a working - `vfork' is not found, define `vfork' to be `fork'. This macro - checks for several known errors in implementations of `vfork' and - considers the system to not have a working `vfork' if it detects - any of them. - - - Macro: AC_FUNC_VPRINTF - If `vprintf' is found, define `HAVE_VPRINTF'. Otherwise, if - `_doprnt' is found, define `HAVE_DOPRNT'. (If `vprintf' is - available, you may assume that `vfprintf' and `vsprintf' are also - available.) - - - Macro: AC_FUNC_WAIT3 - If `wait3' is found and fills in the contents of its third argument - (a `struct rusage *'), which HP-UX does not do, define - `HAVE_WAIT3'. - - -File: autoconf.info, Node: Generic Functions, Prev: Particular Functions, Up: Library Functions - -Generic Function Checks ------------------------ - - These macros are used to find functions not covered by the particular -test macros. If the functions might be in libraries other than the -default C library, first call `AC_CHECK_LIB' for those libraries. If -you need to check the behavior of a function as well as find out -whether it is present, you have to write your own test for it (*note -Writing Tests::.). - - - Macro: AC_CHECK_FUNC (FUNCTION, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]) - If C function FUNCTION is available, run shell commands - ACTION-IF-FOUND, otherwise ACTION-IF-NOT-FOUND. If you just want - to define a symbol if the function is available, consider using - `AC_CHECK_FUNCS' instead. This macro checks for functions with C - linkage even when `AC_LANG_CPLUSPLUS' has been called, since C++ is - more standardized than C is. (*note Language Choice::., for more - information about selecting the language for checks.) - - - Macro: AC_CHECK_FUNCS (FUNCTION... [, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]]) - For each given FUNCTION in the whitespace-separated argument list - that is available, define `HAVE_FUNCTION' (in all capitals). If - ACTION-IF-FOUND is given, it is additional shell code to execute - when one of the functions is found. You can give it a value of - `break' to break out of the loop on the first match. If - ACTION-IF-NOT-FOUND is given, it is executed when one of the - functions is not found. - - - Macro: AC_REPLACE_FUNCS (FUNCTION-NAME...) - For each given FUNCTION-NAME in the whitespace-separated argument - list that is not in the C library, add `FUNCTION-NAME.o' to the - value of the output variable `LIBOBJS'. - - -File: autoconf.info, Node: Header Files, Next: Structures, Prev: Library Functions, Up: Existing Tests - -Header Files -============ - - The following macros check for the presence of certain C header -files. If there is no macro specifically defined to check for a header -file you need, and you don't need to check for any special properties of -it, then you can use one of the general header file check macros. - -* Menu: - -* Particular Headers:: Special handling to find certain headers. -* Generic Headers:: How to find other headers. - - -File: autoconf.info, Node: Particular Headers, Next: Generic Headers, Up: Header Files - -Particular Header Checks ------------------------- - - These macros check for particular system header files--whether they -exist, and in some cases whether they declare certain symbols. - - - Macro: AC_DECL_SYS_SIGLIST - Define `SYS_SIGLIST_DECLARED' if the variable `sys_siglist' is - declared in a system header file, either `signal.h' or `unistd.h'. - - - Macro: AC_DIR_HEADER - Like calling `AC_HEADER_DIRENT' and `AC_FUNC_CLOSEDIR_VOID', but - defines a different set of C preprocessor macros to indicate which - header file is found. This macro and the names it defines are - considered obsolete. The names it defines are: - - `dirent.h' - `DIRENT' - - `sys/ndir.h' - `SYSNDIR' - - `sys/dir.h' - `SYSDIR' - - `ndir.h' - `NDIR' - - In addition, if the `closedir' function does not return a - meaningful value, define `VOID_CLOSEDIR'. - - - Macro: AC_HEADER_DIRENT - Check for the following header files, and for the first one that is - found and defines `DIR', define the listed C preprocessor macro: - - `dirent.h' - `HAVE_DIRENT_H' - - `sys/ndir.h' - `HAVE_SYS_NDIR_H' - - `sys/dir.h' - `HAVE_SYS_DIR_H' - - `ndir.h' - `HAVE_NDIR_H' - - The directory library declarations in the source code should look - something like the following: - - #if HAVE_DIRENT_H - # include <dirent.h> - # define NAMLEN(dirent) strlen((dirent)->d_name) - #else - # define dirent direct - # define NAMLEN(dirent) (dirent)->d_namlen - # if HAVE_SYS_NDIR_H - # include <sys/ndir.h> - # endif - # if HAVE_SYS_DIR_H - # include <sys/dir.h> - # endif - # if HAVE_NDIR_H - # include <ndir.h> - # endif - #endif - - Using the above declarations, the program would declare variables - to be type `struct dirent', not `struct direct', and would access - the length of a directory entry name by passing a pointer to a - `struct dirent' to the `NAMLEN' macro. - - This macro also checks for the SCO Xenix `dir' and `x' libraries. - - - Macro: AC_HEADER_MAJOR - If `sys/types.h' does not define `major', `minor', and `makedev', - but `sys/mkdev.h' does, define `MAJOR_IN_MKDEV'; otherwise, if - `sys/sysmacros.h' does, define `MAJOR_IN_SYSMACROS'. - - - Macro: AC_HEADER_STDC - Define `STDC_HEADERS' if the system has ANSI C header files. - Specifically, this macro checks for `stdlib.h', `stdarg.h', - `string.h', and `float.h'; if the system has those, it probably - has the rest of the ANSI C header files. This macro also checks - whether `string.h' declares `memchr' (and thus presumably the - other `mem' functions), whether `stdlib.h' declare `free' (and - thus presumably `malloc' and other related functions), and whether - the `ctype.h' macros work on characters with the high bit set, as - ANSI C requires. - - Use `STDC_HEADERS' instead of `__STDC__' to determine whether the - system has ANSI-compliant header files (and probably C library - functions) because many systems that have GCC do not have ANSI C - header files. - - On systems without ANSI C headers, there is so much variation that - it is probably easier to declare the functions you use than to - figure out exactly what the system header files declare. Some - systems contain a mix of functions ANSI and BSD; some are mostly - ANSI but lack `memmove'; some define the BSD functions as macros in - `string.h' or `strings.h'; some have only the BSD functions but - `string.h'; some declare the memory functions in `memory.h', some - in `string.h'; etc. It is probably sufficient to check for one - string function and one memory function; if the library has the - ANSI versions of those then it probably has most of the others. - If you put the following in `configure.in': - - AC_HEADER_STDC - AC_CHECK_FUNCS(strchr memcpy) - - then, in your code, you can put declarations like this: - - #if STDC_HEADERS - # include <string.h> - #else - # ifndef HAVE_STRCHR - # define strchr index - # define strrchr rindex - # endif - char *strchr (), *strrchr (); - # ifndef HAVE_MEMCPY - # define memcpy(d, s, n) bcopy ((s), (d), (n)) - # define memmove(d, s, n) bcopy ((s), (d), (n)) - # endif - #endif - - If you use a function like `memchr', `memset', `strtok', or - `strspn', which have no BSD equivalent, then macros won't suffice; - you must provide an implementation of each function. An easy way - to incorporate your implementations only when needed (since the - ones in system C libraries may be hand optimized) is to, taking - `memchr' for example, put it in `memchr.c' and use - `AC_REPLACE_FUNCS(memchr)'. - - - Macro: AC_HEADER_SYS_WAIT - If `sys/wait.h' exists and is compatible with POSIX.1, define - `HAVE_SYS_WAIT_H'. Incompatibility can occur if `sys/wait.h' does - not exist, or if it uses the old BSD `union wait' instead of `int' - to store a status value. If `sys/wait.h' is not POSIX.1 - compatible, then instead of including it, define the POSIX.1 - macros with their usual interpretations. Here is an example: - - #include <sys/types.h> - #if HAVE_SYS_WAIT_H - # include <sys/wait.h> - #endif - #ifndef WEXITSTATUS - # define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) - #endif - #ifndef WIFEXITED - # define WIFEXITED(stat_val) (((stat_val) & 255) == 0) - #endif - - - Macro: AC_MEMORY_H - Define `NEED_MEMORY_H' if `memcpy', `memcmp', etc. are not - declared in `string.h' and `memory.h' exists. This macro is - obsolete; instead, use `AC_CHECK_HEADERS(memory.h)'. See the - example for `AC_HEADER_STDC'. - - - Macro: AC_UNISTD_H - Define `HAVE_UNISTD_H' if the system has `unistd.h'. This macro - is obsolete; instead, use `AC_CHECK_HEADERS(unistd.h)'. - - The way to check if the system supports POSIX.1 is: - - #if HAVE_UNISTD_H - # include <sys/types.h> - # include <unistd.h> - #endif - - #ifdef _POSIX_VERSION - /* Code for POSIX.1 systems. */ - #endif - - `_POSIX_VERSION' is defined when `unistd.h' is included on POSIX.1 - systems. If there is no `unistd.h', it is definitely not a - POSIX.1 system. However, some non-POSIX.1 systems do have - `unistd.h'. - - - Macro: AC_USG - Define `USG' if the system does not have `strings.h', `rindex', - `bzero', etc. This implies that it has `string.h', `strrchr', - `memset', etc. - - The symbol `USG' is obsolete. Instead of this macro, see the - example for `AC_HEADER_STDC'. - - -File: autoconf.info, Node: Generic Headers, Prev: Particular Headers, Up: Header Files - -Generic Header Checks ---------------------- - - These macros are used to find system header files not covered by the -particular test macros. If you need to check the contents of a header -as well as find out whether it is present, you have to write your own -test for it (*note Writing Tests::.). - - - Macro: AC_CHECK_HEADER (HEADER-FILE, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]) - If the system header file HEADER-FILE exists, execute shell - commands ACTION-IF-FOUND, otherwise execute ACTION-IF-NOT-FOUND. - If you just want to define a symbol if the header file is - available, consider using `AC_CHECK_HEADERS' instead. - - - Macro: AC_CHECK_HEADERS (HEADER-FILE... [, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]]) - For each given system header file HEADER-FILE in the - whitespace-separated argument list that exists, define - `HAVE_HEADER-FILE' (in all capitals). If ACTION-IF-FOUND is - given, it is additional shell code to execute when one of the - header files is found. You can give it a value of `break' to - break out of the loop on the first match. If ACTION-IF-NOT-FOUND - is given, it is executed when one of the header files is not found. - - -File: autoconf.info, Node: Structures, Next: Typedefs, Prev: Header Files, Up: Existing Tests - -Structures -========== - - The following macros check for certain structures or structure -members. To check structures not listed here, use `AC_EGREP_CPP' -(*note Examining Declarations::.) or `AC_TRY_COMPILE' (*note Examining -Syntax::.). - - - Macro: AC_HEADER_STAT - If the macros `S_ISDIR', `S_ISREG' et al. defined in `sys/stat.h' - do not work properly (returning false positives), define - `STAT_MACROS_BROKEN'. This is the case on Tektronix UTekV, Amdahl - UTS and Motorola System V/88. - - - Macro: AC_HEADER_TIME - If a program may include both `time.h' and `sys/time.h', define - `TIME_WITH_SYS_TIME'. On some older systems, `sys/time.h' - includes `time.h', but `time.h' is not protected against multiple - inclusion, so programs should not explicitly include both files. - This macro is useful in programs that use, for example, `struct - timeval' or `struct timezone' as well as `struct tm'. It is best - used in conjunction with `HAVE_SYS_TIME_H', which can be checked - for using `AC_CHECK_HEADERS(sys/time.h)'. - - #if TIME_WITH_SYS_TIME - # include <sys/time.h> - # include <time.h> - #else - # if HAVE_SYS_TIME_H - # include <sys/time.h> - # else - # include <time.h> - # endif - #endif - - - Macro: AC_STRUCT_ST_BLKSIZE - If `struct stat' contains an `st_blksize' member, define - `HAVE_ST_BLKSIZE'. - - - Macro: AC_STRUCT_ST_BLOCKS - If `struct stat' contains an `st_blocks' member, define - `HAVE_ST_BLOCKS'. Otherwise, add `fileblocks.o' to the output - variable `LIBOBJS'. - - - Macro: AC_STRUCT_ST_RDEV - If `struct stat' contains an `st_rdev' member, define - `HAVE_ST_RDEV'. - - - Macro: AC_STRUCT_TM - If `time.h' does not define `struct tm', define `TM_IN_SYS_TIME', - which means that including `sys/time.h' had better define `struct - tm'. - - - Macro: AC_STRUCT_TIMEZONE - Figure out how to get the current timezone. If `struct tm' has a - `tm_zone' member, define `HAVE_TM_ZONE'. Otherwise, if the - external array `tzname' is found, define `HAVE_TZNAME'. - - -File: autoconf.info, Node: Typedefs, Next: Compiler Characteristics, Prev: Structures, Up: Existing Tests - -Typedefs -======== - - The following macros check for C typedefs. If there is no macro -specifically defined to check for a typedef you need, and you don't need -to check for any special properties of it, then you can use a general -typedef check macro. - -* Menu: - -* Particular Typedefs:: Special handling to find certain types. -* Generic Typedefs:: How to find other types. - - -File: autoconf.info, Node: Particular Typedefs, Next: Generic Typedefs, Up: Typedefs - -Particular Typedef Checks -------------------------- - - These macros check for particular C typedefs in `sys/types.h' and -`stdlib.h' (if it exists). - - - Macro: AC_TYPE_GETGROUPS - Define `GETGROUPS_T' to be whichever of `gid_t' or `int' is the - base type of the array argument to `getgroups'. - - - Macro: AC_TYPE_MODE_T - If `mode_t' is not defined, define `mode_t' to be `int'. - - - Macro: AC_TYPE_OFF_T - If `off_t' is not defined, define `off_t' to be `long'. - - - Macro: AC_TYPE_PID_T - If `pid_t' is not defined, define `pid_t' to be `int'. - - - Macro: AC_TYPE_SIGNAL - If `signal.h' declares `signal' as returning a pointer to a - function returning `void', define `RETSIGTYPE' to be `void'; - otherwise, define it to be `int'. - - Define signal handlers as returning type `RETSIGTYPE': - - RETSIGTYPE - hup_handler () - { - ... - } - - - Macro: AC_TYPE_SIZE_T - If `size_t' is not defined, define `size_t' to be `unsigned'. - - - Macro: AC_TYPE_UID_T - If `uid_t' is not defined, define `uid_t' to be `int' and `gid_t' - to be `int'. - - -File: autoconf.info, Node: Generic Typedefs, Prev: Particular Typedefs, Up: Typedefs - -Generic Typedef Checks ----------------------- - - This macro is used to check for typedefs not covered by the -particular test macros. - - - Macro: AC_CHECK_TYPE (TYPE, DEFAULT) - If the type TYPE is not defined in `sys/types.h' or `stdlib.h' (if - it exists), define it to be the C (or C++) builtin type DEFAULT; - e.g., `short' or `unsigned'. - - -File: autoconf.info, Node: Compiler Characteristics, Next: System Services, Prev: Typedefs, Up: Existing Tests - -Compiler Characteristics -======================== - - The following macros check for C compiler or machine architecture -features. To check for characteristics not listed here, use -`AC_TRY_COMPILE' (*note Examining Syntax::.) or `AC_TRY_RUN' (*note Run -Time::.) - - - Macro: AC_C_BIGENDIAN - If words are stored with the most significant byte first (like - Motorola and SPARC, but not Intel and VAX, CPUs), define - `WORDS_BIGENDIAN'. - - - Macro: AC_C_CONST - If the C compiler does not fully support the keyword `const', - define `const' to be empty. Some C compilers that do not define - `__STDC__' do support `const'; some compilers that define - `__STDC__' do not completely support `const'. Programs can simply - use `const' as if every C compiler supported it; for those that - don't, the `Makefile' or configuration header file will define it - as empty. - - - Macro: AC_C_INLINE - If the C compiler is a version of GCC that supports the keyword - `__inline' but not `inline' (such as some NeXT versions), define - `inline' to be `__inline'. - - - Macro: AC_C_CHAR_UNSIGNED - If the C type `char' is unsigned, define `__CHAR_UNSIGNED__', - unless the C compiler predefines it. - - - Macro: AC_C_LONG_DOUBLE - If the C compiler supports the `long double' type, define - `HAVE_LONG_DOUBLE'. Some C compilers that do not define - `__STDC__' do support the `long double' type; some compilers that - define `__STDC__' do not support `long double'. - - - Macro: AC_CHECK_SIZEOF (TYPE) - Define `SIZEOF_UCTYPE' to be the size in bytes of the C (or C++) - builtin type TYPE, e.g. `int' or `char *'. If `type' is unknown - to the compiler, it gets a size of 0. UCTYPE is TYPE, with - lowercase converted to uppercase, spaces changed to underscores, - and asterisks changed to `P'. For example, the call - AC_CHECK_SIZEOF(int *) - - defines `SIZEOF_INT_P' to be 8 on DEC Alpha AXP systems. - - - Macro: AC_INT_16_BITS - If the C type `int' is 16 bits wide, define `INT_16_BITS'. This - macro is obsolete; it is more general to use - `AC_CHECK_SIZEOF(int)' instead. - - - Macro: AC_LONG_64_BITS - If the C type `long int' is 64 bits wide, define `LONG_64_BITS'. - This macro is obsolete; it is more general to use - `AC_CHECK_SIZEOF(long)' instead. - - -File: autoconf.info, Node: System Services, Next: UNIX Variants, Prev: Compiler Characteristics, Up: Existing Tests - -System Services -=============== - - The following macros check for operating system services or -capabilities. - - - Macro: AC_SYS_INTERPRETER - Check whether the system supports starting scripts with a line of - the form `#!/bin/csh' to select the interpreter to use for the - script. After running this macro, shell code in `configure.in' - can check the variable `ac_cv_sys_interpreter'; it will be set to - `yes' if the system supports `#!', `no' if not. - - - Macro: AC_PATH_X - Try to locate the X Window System include files and libraries. If - the user gave the command line options `--x-includes=DIR' and - `--x-libraries=DIR', use those directories. If either or both - were not given, get the missing values by running `xmkmf' on a - trivial `Imakefile' and examining the `Makefile' that it produces. - If that fails (such as if `xmkmf' is not present), look for them - in several directories where they often reside. If either method - is successful, set the shell variables `x_includes' and - `x_libraries' to their locations, unless they are in directories - the compiler searches by default. - - If both methods fail, or the user gave the command line option - `--without-x', set the shell variable `no_x' to `yes'; otherwise - set it to the empty string. - - - Macro: AC_PATH_XTRA - An enhanced version of `AC_PATH_X'. Add the C compiler flags that - X needs to output variable `X_CFLAGS', and the X linker flags to - `X_LIBS'. If X is not available, add `-DX_DISPLAY_MISSING' to - `X_CFLAGS'. - - Also check for special libraries that some systems need in order to - compile X programs. Add any that the system needs to output - variable `X_EXTRA_LIBS'. And check for special X11R6 libraries - that need to be linked with before `-lX11', and add any found to - the output variable `X_PRE_LIBS'. - - - Macro: AC_SYS_LONG_FILE_NAMES - If the system supports file names longer than 14 characters, define - `HAVE_LONG_FILE_NAMES'. - - - Macro: AC_SYS_RESTARTABLE_SYSCALLS - If the system automatically restarts a system call that is - interrupted by a signal, define `HAVE_RESTARTABLE_SYSCALLS'. - - -File: autoconf.info, Node: UNIX Variants, Prev: System Services, Up: Existing Tests - -UNIX Variants -============= - - The following macros check for certain operating systems that need -special treatment for some programs, due to exceptional oddities in -their header files or libraries. These macros are warts; they will be -replaced by a more systematic approach, based on the functions they make -available or the environments they provide. - - - Macro: AC_AIX - If on AIX, define `_ALL_SOURCE'. Allows the use of some BSD - functions. Should be called before any macros that run the C - compiler. - - - Macro: AC_DYNIX_SEQ - If on Dynix/PTX (Sequent UNIX), add `-lseq' to output variable - `LIBS'. This macro is obsolete; instead, use `AC_FUNC_GETMNTENT'. - - - Macro: AC_IRIX_SUN - If on IRIX (Silicon Graphics UNIX), add `-lsun' to output variable - `LIBS'. This macro is obsolete. If you were using it to get - `getmntent', use `AC_FUNC_GETMNTENT' instead. If you used it for - the NIS versions of the password and group functions, use - `AC_CHECK_LIB(sun, getpwnam)'. - - - Macro: AC_ISC_POSIX - If on a POSIXized ISC UNIX, define `_POSIX_SOURCE' and add - `-posix' (for the GNU C compiler) or `-Xp' (for other C compilers) - to output variable `CC'. This allows the use of POSIX facilities. - Must be called after `AC_PROG_CC' and before any other macros - that run the C compiler. - - - Macro: AC_MINIX - If on Minix, define `_MINIX' and `_POSIX_SOURCE' and define - `_POSIX_1_SOURCE' to be 2. This allows the use of POSIX - facilities. Should be called before any macros that run the C - compiler. - - - Macro: AC_SCO_INTL - If on SCO UNIX, add `-lintl' to output variable `LIBS'. This - macro is obsolete; instead, use `AC_FUNC_STRFTIME'. - - - Macro: AC_XENIX_DIR - If on Xenix, add `-lx' to output variable `LIBS'. Also, if - `dirent.h' is being used, add `-ldir' to `LIBS'. This macro is - obsolete; use `AC_HEADER_DIRENT' instead. - - -File: autoconf.info, Node: Writing Tests, Next: Results, Prev: Existing Tests, Up: Top - -Writing Tests -************* - - If the existing feature tests don't do something you need, you have -to write new ones. These macros are the building blocks. They provide -ways for other macros to check whether various kinds of features are -available and report the results. - - This chapter contains some suggestions and some of the reasons why -the existing tests are written the way they are. You can also learn a -lot about how to write Autoconf tests by looking at the existing ones. -If something goes wrong in one or more of the Autoconf tests, this -information can help you understand the assumptions behind them, which -might help you figure out how to best solve the problem. - - These macros check the output of the C compiler system. They do not -cache the results of their tests for future use (*note Caching -Results::.), because they don't know enough about the information they -are checking for to generate a cache variable name. They also do not -print any messages, for the same reason. The checks for particular -kinds of C features call these macros and do cache their results and -print messages about what they're checking for. - -* Menu: - -* Examining Declarations:: Detecting header files and declarations. -* Examining Syntax:: Detecting language syntax features. -* Examining Libraries:: Detecting functions and global variables. -* Run Time:: Testing for run-time features. -* Portable Shell:: Shell script portability pitfalls. -* Testing Values and Files:: Checking strings and files. -* Multiple Cases:: Tests for several possible values. -* Language Choice:: Selecting which language to use for testing. - - -File: autoconf.info, Node: Examining Declarations, Next: Examining Syntax, Up: Writing Tests - -Examining Declarations -====================== - - The macro `AC_TRY_CPP' is used to check whether particular header -files exist. You can check for one at a time, or more than one if you -need several header files to all exist for some purpose. - - - Macro: AC_TRY_CPP (INCLUDES, ACTION-IF-TRUE [, ACTION-IF-FALSE]) - INCLUDES is C or C++ `#include' statements and declarations, on - which shell variable, backquote, and backslash substitutions are - performed. (Actually, it can be any C program, but other - statements are probably not useful.) If the preprocessor produces - no error messages while processing it, run shell commands - ACTION-IF-TRUE. Otherwise run shell commands ACTION-IF-FALSE. - - This macro uses `CPPFLAGS', but not `CFLAGS', because `-g', `-O', - etc. are not valid options to many C preprocessors. - - Here is now to find out whether a header file contains a particular -declaration, such as a typedef, a structure, a structure member, or a -function. Use `AC_EGREP_HEADER' instead of running `grep' directly on -the header file; on some systems the symbol might be defined in another -header file that the file you are checking `#include's. - - - Macro: AC_EGREP_HEADER (PATTERN, HEADER-FILE, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]) - If the output of running the preprocessor on the system header file - HEADER-FILE matches the `egrep' regular expression PATTERN, - execute shell commands ACTION-IF-FOUND, otherwise execute - ACTION-IF-NOT-FOUND. - - To check for C preprocessor symbols, either defined by header files -or predefined by the C preprocessor, use `AC_EGREP_CPP'. Here is an -example of the latter: - - AC_EGREP_CPP(yes, - [#ifdef _AIX - yes - #endif - ], is_aix=yes, is_aix=no) - - - Macro: AC_EGREP_CPP (PATTERN, PROGRAM, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]) - PROGRAM is the text of a C or C++ program, on which shell - variable, backquote, and backslash substitutions are performed. - If the output of running the preprocessor on PROGRAM matches the - `egrep' regular expression PATTERN, execute shell commands - ACTION-IF-FOUND, otherwise execute ACTION-IF-NOT-FOUND. - - This macro calls `AC_PROG_CPP' or `AC_PROG_CXXCPP' (depending on - which language is current, *note Language Choice::.), if it hasn't - been called already. - - -File: autoconf.info, Node: Examining Syntax, Next: Examining Libraries, Prev: Examining Declarations, Up: Writing Tests - -Examining Syntax -================ - - To check for a syntax feature of the C or C++ compiler, such as -whether it recognizes a certain keyword, use `AC_TRY_COMPILE' to try to -compile a small program that uses that feature. You can also use it to -check for structures and structure members that are not present on all -systems. - - - Macro: AC_TRY_COMPILE (INCLUDES, FUNCTION-BODY, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]) - Create a test C program to see whether a function whose body - consists of FUNCTION-BODY can be compiled; INCLUDES is any - `#include' statements needed by the code in FUNCTION-BODY. If the - file compiles successfully, run shell commands ACTION-IF-FOUND, - otherwise run ACTION-IF-NOT-FOUND. This macro uses `CFLAGS' or - `CXXFLAGS', and `CPPFLAGS', when compiling. It does not try to - link; use `AC_TRY_LINK' if you need to do that (*note Examining - Libraries::.). - - -File: autoconf.info, Node: Examining Libraries, Next: Run Time, Prev: Examining Syntax, Up: Writing Tests - -Examining Libraries -=================== - - To check for a library, a function, or a global variable, Autoconf -`configure' scripts try to compile and link a small program that uses -it. This is unlike Metaconfig, which by default uses `nm' or `ar' on -the C library to try to figure out which functions are available. -Trying to link with the function is usually a more reliable approach -because it avoids dealing with the variations in the options and output -formats of `nm' and `ar' and in the location of the standard libraries. -It also allows configuring for cross-compilation or checking a -function's runtime behavior if needed. On the other hand, it can be -slower than scanning the libraries once. - - A few systems have linkers that do not return a failure exit status -when there are unresolved functions in the link. This bug makes the -configuration scripts produced by Autoconf unusable on those systems. -However, some of them can be given options that make the exit status -correct. This is a problem that Autoconf does not currently handle -automatically. - - `AC_TRY_LINK' is used to compile test programs to test for functions -and global variables. It is also used (by `AC_CHECK_LIB') to check for -libraries, by adding the library being checked for to `LIBS' -temporarily and trying to link a small program. - - - Macro: AC_TRY_LINK (INCLUDES, FUNCTION-BODY, ACTION-IF-FOUND [, - ACTION-IF-NOT-FOUND]) - Create a test C program to see whether a function whose body - consists of FUNCTION-BODY can be compiled and linked; INCLUDES is - any `#include' statements needed by the code in FUNCTION-BODY. If - the file compiles and links successfully, run shell commands - ACTION-IF-FOUND, otherwise run ACTION-IF-NOT-FOUND. This macro - uses `CFLAGS' or `CXXFLAGS', `CPPFLAGS', `LDFLAGS', and `LIBS' - when compiling. - - - Macro: AC_COMPILE_CHECK (ECHO-TEXT, INCLUDES, FUNCTION-BODY, - ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]) - This is an obsolete version of `AC_TRY_LINK', with the addition - that it prints `checking for ECHO-TEXT' to the standard output - first, if ECHO-TEXT is non-empty. Use `AC_MSG_CHECKING' and - `AC_MSG_RESULT' instead to print messages (*note Printing - Messages::.). - diff --git a/util/autoconf/autoconf.info-3 b/util/autoconf/autoconf.info-3 deleted file mode 100644 index 0cbd5db..0000000 --- a/util/autoconf/autoconf.info-3 +++ /dev/null @@ -1,1198 +0,0 @@ -This is Info file autoconf.info, produced by Makeinfo-1.55 from the -input file ./autoconf.texi. - -START-INFO-DIR-ENTRY -* Autoconf: (autoconf). Create source code configuration scripts. -END-INFO-DIR-ENTRY - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. - - Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Foundation. - - -File: autoconf.info, Node: Run Time, Next: Portable Shell, Prev: Examining Libraries, Up: Writing Tests - -Checking Run Time Behavior -========================== - - Sometimes you need to find out how a system performs at run time, -such as whether a given function has a certain capability or bug. If -you can, make such checks when your program runs instead of when it is -configured. You can check for things like the machine's endianness when -your program initializes itself. - - If you really need to test for a run-time behavior while configuring, -you can write a test program to determine the result, and compile and -run it using `AC_TRY_RUN'. Avoid running test programs if possible, -because using them prevents people from configuring your package for -cross-compiling. - -* Menu: - -* Test Programs:: Running test programs. -* Guidelines:: General rules for writing test programs. -* Test Functions:: Avoiding pitfalls in test programs. - - -File: autoconf.info, Node: Test Programs, Next: Guidelines, Up: Run Time - -Running Test Programs ---------------------- - - Use the following macro if you need to test run-time behavior of the -system while configuring. - - - Macro: AC_TRY_RUN (PROGRAM, ACTION-IF-TRUE [, ACTION-IF-FALSE [, - ACTION-IF-CROSS-COMPILING]]) - PROGRAM is the text of a C program, on which shell variable and - backquote substitutions are performed. If it compiles and links - successfully and returns an exit status of 0 when executed, run - shell commands ACTION-IF-TRUE. Otherwise run shell commands - ACTION-IF-FALSE; the exit status of the program is available in - the shell variable `$?'. This macro uses `CFLAGS' or `CXXFLAGS', - `CPPFLAGS', `LDFLAGS', and `LIBS' when compiling. - - If the C compiler being used does not produce executables that run - on the system where `configure' is being run, then the test - program is not run. If the optional shell commands - ACTION-IF-CROSS-COMPILING are given, they are run instead and this - macro calls `AC_C_CROSS' if it has not already been called. - Otherwise, `configure' prints an error message and exits. - - Try to provide a pessimistic default value to use when -cross-compiling makes run-time tests impossible. You do this by -passing the optional last argument to `AC_TRY_RUN'. `autoconf' prints -a warning message when creating `configure' each time it encounters a -call to `AC_TRY_RUN' with no ACTION-IF-CROSS-COMPILING argument given. -You may ignore the warning, though users will not be able to configure -your package for cross-compiling. A few of the macros distributed with -Autoconf produce this warning message. - - To configure for cross-compiling you can also choose a value for -those parameters based on the canonical system name (*note Manual -Configuration::.). Alternatively, set up a test results cache file with -the correct values for the target system (*note Caching Results::.). - - To provide a default for calls of `AC_TRY_RUN' that are embedded in -other macros, including a few of the ones that come with Autoconf, you -can call `AC_C_CROSS' before running them. Then, if the shell variable -`cross_compiling' is set to `yes', use an alternate method to get the -results instead of calling the macros. - - - Macro: AC_C_CROSS - If the C compiler being used does not produce executables that can - run on the system where `configure' is being run, set the shell - variable `cross_compiling' to `yes', otherwise `no'. - - -File: autoconf.info, Node: Guidelines, Next: Test Functions, Prev: Test Programs, Up: Run Time - -Guidelines for Test Programs ----------------------------- - - Test programs should not write anything to the standard output. They -should return 0 if the test succeeds, nonzero otherwise, so that success -can be distinguished easily from a core dump or other failure; -segmentation violations and other failures produce a nonzero exit -status. Test programs should `exit', not `return', from `main', -because on some systems (old Suns, at least) the argument to `return' -in `main' is ignored. - - Test programs can use `#if' or `#ifdef' to check the values of -preprocessor macros defined by tests that have already run. For -example, if you call `AC_HEADER_STDC', then later on in `configure.in' -you can have a test program that includes an ANSI C header file -conditionally: - - #if STDC_HEADERS - # include <stdlib.h> - #endif - - If a test program needs to use or create a data file, give it a name -that starts with `conftest', such as `conftestdata'. The `configure' -script cleans up by running `rm -rf conftest*' after running test -programs and if the script is interrupted. - - -File: autoconf.info, Node: Test Functions, Prev: Guidelines, Up: Run Time - -Test Functions --------------- - - Function declarations in test programs should have a prototype -conditionalized for C++. In practice, though, test programs rarely need -functions that take arguments. - - #ifdef __cplusplus - foo(int i) - #else - foo(i) int i; - #endif - - Functions that test programs declare should also be conditionalized -for C++, which requires `extern "C"' prototypes. Make sure to not -include any header files containing clashing prototypes. - - #ifdef __cplusplus - extern "C" void *malloc(size_t); - #else - char *malloc(); - #endif - - If a test program calls a function with invalid parameters (just to -see whether it exists), organize the program to ensure that it never -invokes that function. You can do this by calling it in another -function that is never invoked. You can't do it by putting it after a -call to `exit', because GCC version 2 knows that `exit' never returns -and optimizes out any code that follows it in the same block. - - If you include any header files, make sure to call the functions -relevant to them with the correct number of arguments, even if they are -just 0, to avoid compilation errors due to prototypes. GCC version 2 -has internal prototypes for several functions that it automatically -inlines; for example, `memcpy'. To avoid errors when checking for -them, either pass them the correct number of arguments or redeclare them -with a different return type (such as `char'). - - -File: autoconf.info, Node: Portable Shell, Next: Testing Values and Files, Prev: Run Time, Up: Writing Tests - -Portable Shell Programming -========================== - - When writing your own checks, there are some shell script programming -techniques you should avoid in order to make your code portable. The -Bourne shell and upward-compatible shells like Bash and the Korn shell -have evolved over the years, but to prevent trouble, do not take -advantage of features that were added after UNIX version 7, circa 1977. -You should not use shell functions, aliases, negated character classes, -or other features that are not found in all Bourne-compatible shells; -restrict yourself to the lowest common denominator. Even `unset' is -not supported by all shells! - - The set of external programs you should run in a `configure' script -is fairly small. *Note Utilities in Makefiles: -(standards.info)Utilities in Makefiles, for the list. This restriction -allows users to start out with a fairly small set of programs and build -the rest, avoiding too many interdependencies between packages. - - Some of these external utilities have a portable subset of features, -as well; for example, don't rely on `ln' having a `-f' option or `cat' -having any options. `sed' scripts should not contain comments or use -branch labels longer than 8 characters. Don't use `grep -s' to -suppress output, because `grep -s' on System V does not suppress -output, only error messages. Instead, redirect the standard output and -standard error (in case the file doesn't exist) of `grep' to -`/dev/null'. Check the exit status of `grep' to determine whether it -found a match. - - -File: autoconf.info, Node: Testing Values and Files, Next: Multiple Cases, Prev: Portable Shell, Up: Writing Tests - -Testing Values and Files -======================== - - `configure' scripts need to test properties of many files and -strings. Here are some portability problems to watch out for when doing -those tests. - - The `test' program is the way to perform many file and string tests. -It is often invoked by the alternate name `[', but using that name in -Autoconf code is asking for trouble since it is an `m4' quote character. - - If you need to make multiple checks using `test', combine them with -the shell operators `&&' and `||' instead of using the `test' operators -`-a' and `-o'. On System V, the precedence of `-a' and `-o' is wrong -relative to the unary operators; consequently, POSIX does not specify -them, so using them is nonportable. If you combine `&&' and `||' in -the same statement, keep in mind that they have equal precedence. - - To enable `configure' scripts to support cross-compilation, they -shouldn't do anything that tests features of the host system instead of -the target system. But occasionally you may find it necessary to check -whether some arbitrary file exists. To do so, use `test -f' or `test --r'. Do not use `test -x', because 4.3BSD does not have it. - - Another nonportable shell programming construction is - VAR=${VAR:-VALUE} - -The intent is to set VAR to VALUE only if it is not already set, but if -VAR has any value, even the empty string, to leave it alone. Old BSD -shells, including the Ultrix `sh', don't accept the colon, and complain -and die. A portable equivalent is - : ${VAR=VALUE} - - -File: autoconf.info, Node: Multiple Cases, Next: Language Choice, Prev: Testing Values and Files, Up: Writing Tests - -Multiple Cases -============== - - Some operations are accomplished in several possible ways, depending -on the UNIX variant. Checking for them essentially requires a "case -statement". Autoconf does not directly provide one; however, it is -easy to simulate by using a shell variable to keep track of whether a -way to perform the operation has been found yet. - - Here is an example that uses the shell variable `fstype' to keep -track of whether the remaining cases need to be checked. - - AC_MSG_CHECKING(how to get filesystem type) - fstype=no - # The order of these tests is important. - AC_TRY_CPP([#include <sys/statvfs.h> - #include <sys/fstyp.h>], AC_DEFINE(FSTYPE_STATVFS) fstype=SVR4) - if test $fstype = no; then - AC_TRY_CPP([#include <sys/statfs.h> - #include <sys/fstyp.h>], AC_DEFINE(FSTYPE_USG_STATFS) fstype=SVR3) - fi - if test $fstype = no; then - AC_TRY_CPP([#include <sys/statfs.h> - #include <sys/vmount.h>], AC_DEFINE(FSTYPE_AIX_STATFS) fstype=AIX) - fi - # (more cases omitted here) - AC_MSG_RESULT($fstype) - - -File: autoconf.info, Node: Language Choice, Prev: Multiple Cases, Up: Writing Tests - -Language Choice -=============== - - Packages that use both C and C++ need to test features of both -compilers. Autoconf-generated `configure' scripts check for C features -by default. The following macros determine which language's compiler -is used in tests that follow in `configure.in'. - - - Macro: AC_LANG_C - Do compilation tests using `CC' and `CPP' and use extension `.c' - for test programs. - - - Macro: AC_LANG_CPLUSPLUS - Do compilation tests using `CXX' and `CXXCPP' and use extension - `.C' for test programs. - - - Macro: AC_LANG_SAVE - Remember the current language (as set by `AC_LANG_C' or - `AC_LANG_CPLUSPLUS') on a stack. Does not change which language is - current. Use this macro and `AC_LANG_RESTORE' in macros that need - to temporarily switch to a particular language. - - - Macro: AC_LANG_RESTORE - Select the language that is saved on the top of the stack, as set - by `AC_LANG_SAVE', and remove it from the stack. This macro is - equivalent to either `AC_LANG_C' or `AC_LANG_CPLUSPLUS', whichever - had been run most recently when `AC_LANG_SAVE' was last called. - - Do not call this macro more times than `AC_LANG_SAVE'. - - - Macro: AC_REQUIRE_CPP - Ensure that whichever preprocessor would currently be used for - tests has been found. Calls `AC_REQUIRE' (*note Prerequisite - Macros::.) with an argument of either `AC_PROG_CPP' or - `AC_PROG_CXXCPP', depending on which language is current. - - -File: autoconf.info, Node: Results, Next: Writing Macros, Prev: Writing Tests, Up: Top - -Results of Tests -**************** - - Once `configure' has determined whether a feature exists, what can -it do to record that information? There are four sorts of things it can -do: define a C preprocessor symbol, set a variable in the output files, -save the result in a cache file for future `configure' runs, and print -a message letting the user know the result of the test. - -* Menu: - -* Defining Symbols:: Defining C preprocessor symbols. -* Setting Output Variables:: Replacing variables in output files. -* Caching Results:: Speeding up subsequent `configure' runs. -* Printing Messages:: Notifying users of progress or problems. - - -File: autoconf.info, Node: Defining Symbols, Next: Setting Output Variables, Up: Results - -Defining C Preprocessor Symbols -=============================== - - A common action to take in response to a feature test is to define a -C preprocessor symbol indicating the results of the test. That is done -by calling `AC_DEFINE' or `AC_DEFINE_UNQUOTED'. - - By default, `AC_OUTPUT' places the symbols defined by these macros -into the output variable `DEFS', which contains an option -`-DSYMBOL=VALUE' for each symbol defined. Unlike in Autoconf version -1, there is no variable `DEFS' defined while `configure' is running. -To check whether Autoconf macros have already defined a certain C -preprocessor symbol, test the value of the appropriate cache variable, -as in this example: - - AC_CHECK_FUNC(vprintf, AC_DEFINE(HAVE_VPRINTF)) - if test "$ac_cv_func_vprintf" != yes; then - AC_CHECK_FUNC(_doprnt, AC_DEFINE(HAVE_DOPRNT)) - fi - - If `AC_CONFIG_HEADER' has been called, then instead of creating -`DEFS', `AC_OUTPUT' creates a header file by substituting the correct -values into `#define' statements in a template file. *Note -Configuration Headers::, for more information about this kind of output. - - - Macro: AC_DEFINE (VARIABLE [, VALUE]) - Define C preprocessor variable VARIABLE. If VALUE is given, set - VARIABLE to that value (verbatim), otherwise set it to 1. VALUE - should not contain literal newlines, and if you are not using - `AC_CONFIG_HEADER' it should not contain any `#' characters, as - `make' tends to eat them. To use a shell variable (which you need - to do in order to define a value containing the `m4' quote - characters `[' or `]'), use `AC_DEFINE_UNQUOTED' instead. The - following example defines the C preprocessor variable `EQUATION' - to be the string constant `"$a > $b"': - - AC_DEFINE(EQUATION, "$a > $b") - - - Macro: AC_DEFINE_UNQUOTED (VARIABLE [, VALUE]) - Like `AC_DEFINE', but three shell expansions are - performed--once--on VARIABLE and VALUE: variable expansion (`$'), - command substitution (``'), and backslash escaping (`\'). Single - and double quote characters in the value have no special meaning. - Use this macro instead of `AC_DEFINE' when VARIABLE or VALUE is a - shell variable. Examples: - - AC_DEFINE_UNQUOTED(config_machfile, "${machfile}") - AC_DEFINE_UNQUOTED(GETGROUPS_T, $ac_cv_type_getgroups) - AC_DEFINE_UNQUOTED(${ac_tr_hdr}) - - Due to the syntactical bizarreness of the Bourne shell, do not use -semicolons to separate `AC_DEFINE' or `AC_DEFINE_UNQUOTED' calls from -other macro calls or shell code; that can cause syntax errors in the -resulting `configure' script. Use either spaces or newlines. That is, -do this: - - AC_CHECK_HEADER(elf.h, AC_DEFINE(SVR4) LIBS="$LIBS -lelf") - -or this: - - AC_CHECK_HEADER(elf.h, - AC_DEFINE(SVR4) - LIBS="$LIBS -lelf") - -instead of this: - - AC_CHECK_HEADER(elf.h, AC_DEFINE(SVR4); LIBS="$LIBS -lelf") - - -File: autoconf.info, Node: Setting Output Variables, Next: Caching Results, Prev: Defining Symbols, Up: Results - -Setting Output Variables -======================== - - One way to record the results of tests is to set "output variables", -which are shell variables whose values are substituted into files that -`configure' outputs. The two macros below create new output variables. -*Note Preset Output Variables::, for a list of output variables that -are always available. - - - Macro: AC_SUBST (VARIABLE) - Create an output variable from a shell variable. Make `AC_OUTPUT' - substitute the variable VARIABLE into output files (typically one - or more `Makefile's). This means that `AC_OUTPUT' will replace - instances of `@VARIABLE@' in input files with the value that the - shell variable VARIABLE has when `AC_OUTPUT' is called. The value - of VARIABLE should not contain literal newlines. - - - Macro: AC_SUBST_FILE (VARIABLE) - Another way to create an output variable from a shell variable. - Make `AC_OUTPUT' insert (without substitutions) the contents of - the file named by shell variable VARIABLE into output files. This - means that `AC_OUTPUT' will replace instances of `@VARIABLE@' in - output files (such as `Makefile.in') with the contents of the file - that the shell variable VARIABLE names when `AC_OUTPUT' is called. - Set the variable to `/dev/null' for cases that do not have a file - to insert. - - This macro is useful for inserting `Makefile' fragments containing - special dependencies or other `make' directives for particular host - or target types into `Makefile's. For example, `configure.in' - could contain: - - AC_SUBST_FILE(host_frag)dnl - host_frag=$srcdir/conf/sun4.mh - - and then a `Makefile.in' could contain: - - @host_frag@ - - -File: autoconf.info, Node: Caching Results, Next: Printing Messages, Prev: Setting Output Variables, Up: Results - -Caching Results -=============== - - To avoid checking for the same features repeatedly in various -`configure' scripts (or repeated runs of one script), `configure' saves -the results of many of its checks in a "cache file". If, when a -`configure' script runs, it finds a cache file, it reads from it the -results from previous runs and avoids rerunning those checks. As a -result, `configure' can run much faster than if it had to perform all -of the checks every time. - - - Macro: AC_CACHE_VAL (CACHE-ID, COMMANDS-TO-SET-IT) - Ensure that the results of the check identified by CACHE-ID are - available. If the results of the check were in the cache file - that was read, and `configure' was not given the `--quiet' or - `--silent' option, print a message saying that the result was - cached; otherwise, run the shell commands COMMANDS-TO-SET-IT. - Those commands should have no side effects except for setting the - variable CACHE-ID. In particular, they should not call - `AC_DEFINE'; the code that follows the call to `AC_CACHE_VAL' - should do that, based on the cached value. Also, they should not - print any messages, for example with `AC_MSG_CHECKING'; do that - before calling `AC_CACHE_VAL', so the messages are printed - regardless of whether the results of the check are retrieved from - the cache or determined by running the shell commands. If the - shell commands are run to determine the value, the value will be - saved in the cache file just before `configure' creates its output - files. *Note Cache Variable Names::, for how to choose the name - of the CACHE-ID variable. - -* Menu: - -* Cache Variable Names:: Shell variables used in caches. -* Cache Files:: Files `configure' uses for caching. - - -File: autoconf.info, Node: Cache Variable Names, Next: Cache Files, Up: Caching Results - -Cache Variable Names --------------------- - - The names of cache variables should have the following format: - - PACKAGE-PREFIX_cv_VALUE-TYPE_SPECIFIC-VALUE[_ADDITIONAL-OPTIONS] - -for example, `ac_cv_header_stat_broken' or -`ac_cv_prog_gcc_traditional'. The parts of the variable name are: - -PACKAGE-PREFIX - An abbreviation for your package or organization; the same prefix - you begin local Autoconf macros with, except lowercase by - convention. For cache values used by the distributed Autoconf - macros, this value is `ac'. - -`_cv_' - Indicates that this shell variable is a cache value. - -VALUE-TYPE - A convention for classifying cache values, to produce a rational - naming system. The values used in Autoconf are listed in *Note - Macro Names::. - -SPECIFIC-VALUE - Which member of the class of cache values this test applies to. - For example, which function (`alloca'), program (`gcc'), or output - variable (`INSTALL'). - -ADDITIONAL-OPTIONS - Any particular behavior of the specific member that this test - applies to. For example, `broken' or `set'. This part of the - name may be omitted if it does not apply. - - Like their names, the values that may be assigned to cache variables -have a few restrictions. The values may not contain single quotes or -curly braces. Usually, their values will be boolean (`yes' or `no') or -the names of files or functions; so this is not an important -restriction. - - -File: autoconf.info, Node: Cache Files, Prev: Cache Variable Names, Up: Caching Results - -Cache Files ------------ - - A cache file is a shell script that caches the results of configure -tests run on one system so they can be shared between configure scripts -and configure runs. It is not useful on other systems. If its contents -are invalid for some reason, the user may delete or edit it. - - By default, configure uses `./config.cache' as the cache file, -creating it if it does not exist already. `configure' accepts the -`--cache-file=FILE' option to use a different cache file; that is what -`configure' does when it calls `configure' scripts in subdirectories, -so they share the cache. Giving `--cache-file=/dev/null' disables -caching, for debugging `configure'. *Note Subdirectories::, for -information on configuring subdirectories with the `AC_CONFIG_SUBDIRS' -macro. `config.status' only pays attention to the cache file if it is -given the `--recheck' option, which makes it rerun `configure'. - - It is wrong to try to distribute cache files for particular system -types. There is too much room for error in doing that, and too much -administrative overhead in maintaining them. For any features that -can't be guessed automatically, use the standard method of the canonical -system type and linking files (*note Manual Configuration::.). - - The cache file on a particular system will gradually accumulate -whenever someone runs a `configure' script; it will be initially -nonexistent. Running `configure' merges the new cache results with the -existing cache file. The site initialization script can specify a -site-wide cache file to use instead of the default, to make it work -transparently, as long as the same C compiler is used every time (*note -Site Defaults::.). - - -File: autoconf.info, Node: Printing Messages, Prev: Caching Results, Up: Results - -Printing Messages -================= - - `configure' scripts need to give users running them several kinds of -information. The following macros print messages in ways appropriate -for each kind. The arguments to all of them get enclosed in shell -double quotes, so the shell performs variable and backquote substitution -on them. - - These macros are all wrappers around the `echo' shell command. -`configure' scripts should rarely need to run `echo' directly to print -messages for the user. Using these macros makes it easy to change how -and when each kind of message is printed; such changes need only be -made to the macro definitions, and all of the callers change -automatically. - - - Macro: AC_MSG_CHECKING (FEATURE-DESCRIPTION) - Notify the user that `configure' is checking for a particular - feature. This macro prints a message that starts with `checking ' - and ends with `...' and no newline. It must be followed by a call - to `AC_MSG_RESULT' to print the result of the check and the - newline. The FEATURE-DESCRIPTION should be something like - `whether the Fortran compiler accepts C++ comments' or `for c89'. - - This macro prints nothing if `configure' is run with the `--quiet' - or `--silent' option. - - - Macro: AC_MSG_RESULT (RESULT-DESCRIPTION) - Notify the user of the results of a check. RESULT-DESCRIPTION is - almost always the value of the cache variable for the check, - typically `yes', `no', or a file name. This macro should follow a - call to `AC_MSG_CHECKING', and the RESULT-DESCRIPTION should be - the completion of the message printed by the call to - `AC_MSG_CHECKING'. - - This macro prints nothing if `configure' is run with the `--quiet' - or `--silent' option. - - - Macro: AC_MSG_ERROR (ERROR-DESCRIPTION) - Notify the user of an error that prevents `configure' from - completing. This macro prints an error message on the standard - error stream and exits `configure' with a nonzero status. - eRROR-DESCRIPTION should be something like `invalid value $HOME - for \$HOME'. - - - Macro: AC_MSG_WARN (PROBLEM-DESCRIPTION) - Notify the `configure' user of a possible problem. This macro - prints the message on the standard error stream; `configure' - continues running afterward, so macros that call `AC_MSG_WARN' - should provide a default (back-up) behavior for the situations - they warn about. PROBLEM-DESCRIPTION should be something like `ln - -s seems to make hard links'. - - The following two macros are an obsolete alternative to -`AC_MSG_CHECKING' and `AC_MSG_RESULT'. - - - Macro: AC_CHECKING (FEATURE-DESCRIPTION) - This macro is similar to `AC_MSG_CHECKING', except that it prints a - newline after the FEATURE-DESCRIPTION. It is useful mainly to - print a general description of the overall purpose of a group of - feature checks, e.g., - - AC_CHECKING(if stack overflow is detectable) - - - Macro: AC_VERBOSE (RESULT-DESCRIPTION) - This macro is similar to `AC_MSG_RESULT', except that it is meant - to follow a call to `AC_CHECKING' instead of `AC_MSG_CHECKING'; it - starts the message it prints with a tab. It is considered - obsolete. - - -File: autoconf.info, Node: Writing Macros, Next: Manual Configuration, Prev: Results, Up: Top - -Writing Macros -************** - - When you write a feature test that could be applicable to more than -one software package, the best thing to do is encapsulate it in a new -macro. Here are some instructions and guidelines for writing Autoconf -macros. - -* Menu: - -* Macro Definitions:: Basic format of an Autoconf macro. -* Macro Names:: What to call your new macros. -* Quoting:: Protecting macros from unwanted expansion. -* Dependencies Between Macros:: What to do when macros depend on other macros. - - -File: autoconf.info, Node: Macro Definitions, Next: Macro Names, Up: Writing Macros - -Macro Definitions -================= - - Autoconf macros are defined using the `AC_DEFUN' macro, which is -similar to the `m4' builtin `define' macro. In addition to defining a -macro, `AC_DEFUN' adds to it some code which is used to constrain the -order in which macros are called (*note Prerequisite Macros::.). - - An Autoconf macro definition looks like this: - - AC_DEFUN(MACRO-NAME, [MACRO-BODY]) - -The square brackets here do not indicate optional text: they should -literally be present in the macro definition to avoid macro expansion -problems (*note Quoting::.). You can refer to any arguments passed to -the macro as `$1', `$2', etc. - - To introduce comments in `m4', use the `m4' builtin `dnl'; it causes -`m4' to discard the text through the next newline. It is not needed -between macro definitions in `acsite.m4' and `aclocal.m4', because all -output is discarded until `AC_INIT' is called. - - *Note How to define new macros: (m4.info)Definitions, for more -complete information on writing `m4' macros. - - -File: autoconf.info, Node: Macro Names, Next: Quoting, Prev: Macro Definitions, Up: Writing Macros - -Macro Names -=========== - - All of the Autoconf macros have all-uppercase names starting with -`AC_' to prevent them from accidentally conflicting with other text. -All shell variables that they use for internal purposes have -mostly-lowercase names starting with `ac_'. To ensure that your macros -don't conflict with present or future Autoconf macros, you should -prefix your own macro names and any shell variables they use with some -other sequence. Possibilities include your initials, or an abbreviation -for the name of your organization or software package. - - Most of the Autoconf macros' names follow a structured naming -convention that indicates the kind of feature check by the name. The -macro names consist of several words, separated by underscores, going -from most general to most specific. The names of their cache -variables use the same convention (*note Cache Variable Names::., for -more information on them). - - The first word of the name after `AC_' usually tells the category of -feature being tested. Here are the categories used in Autoconf for -specific test macros, the kind of macro that you are more likely to -write. They are also used for cache variables, in all-lowercase. Use -them where applicable; where they're not, invent your own categories. - -`C' - C language builtin features. - -`DECL' - Declarations of C variables in header files. - -`FUNC' - Functions in libraries. - -`GROUP' - UNIX group owners of files. - -`HEADER' - Header files. - -`LIB' - C libraries. - -`PATH' - The full path names to files, including programs. - -`PROG' - The base names of programs. - -`STRUCT' - Definitions of C structures in header files. - -`SYS' - Operating system features. - -`TYPE' - C builtin or declared types. - -`VAR' - C variables in libraries. - - After the category comes the name of the particular feature being -tested. Any further words in the macro name indicate particular aspects -of the feature. For example, `AC_FUNC_UTIME_NULL' checks the behavior -of the `utime' function when called with a `NULL' pointer. - - A macro that is an internal subroutine of another macro should have a -name that starts with the name of that other macro, followed by one or -more words saying what the internal macro does. For example, -`AC_PATH_X' has internal macros `AC_PATH_X_XMKMF' and -`AC_PATH_X_DIRECT'. - - -File: autoconf.info, Node: Quoting, Next: Dependencies Between Macros, Prev: Macro Names, Up: Writing Macros - -Quoting -======= - - Macros that are called by other macros are evaluated by `m4' several -times; each evaluation might require another layer of quotes to prevent -unwanted expansions of macros or `m4' builtins, such as `define' and -`$1'. Quotes are also required around macro arguments that contain -commas, since commas separate the arguments from each other. It's a -good idea to quote any macro arguments that contain newlines or calls -to other macros, as well. - - Autoconf changes the `m4' quote characters from the default ``' and -`'' to `[' and `]', because many of the macros use ``' and `'', -mismatched. However, in a few places the macros need to use brackets -(usually in C program text or regular expressions). In those places, -they use the `m4' builtin command `changequote' to temporarily change -the quote characters to `<<' and `>>'. (Sometimes, if they don't need -to quote anything, they disable quoting entirely instead by setting the -quote characters to empty strings.) Here is an example: - - AC_TRY_LINK( - changequote(<<, >>)dnl - <<#include <time.h> - #ifndef tzname /* For SGI. */ - extern char *tzname[]; /* RS6000 and others reject char **tzname. */ - #endif>>, - changequote([, ])dnl - [atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no) - - When you create a `configure' script using newly written macros, -examine it carefully to check whether you need to add more quotes in -your macros. If one or more words have disappeared in the `m4' output, -you need more quotes. When in doubt, quote. - - However, it's also possible to put on too many layers of quotes. If -this happens, the resulting `configure' script will contain unexpanded -macros. The `autoconf' program checks for this problem by doing `grep -AC_ configure'. - - -File: autoconf.info, Node: Dependencies Between Macros, Prev: Quoting, Up: Writing Macros - -Dependencies Between Macros -=========================== - - Some Autoconf macros depend on other macros having been called first -in order to work correctly. Autoconf provides a way to ensure that -certain macros are called if needed and a way to warn the user if -macros are called in an order that might cause incorrect operation. - -* Menu: - -* Prerequisite Macros:: Ensuring required information. -* Suggested Ordering:: Warning about possible ordering problems. -* Obsolete Macros:: Warning about old ways of doing things. - - -File: autoconf.info, Node: Prerequisite Macros, Next: Suggested Ordering, Up: Dependencies Between Macros - -Prerequisite Macros -------------------- - - A macro that you write might need to use values that have previously -been computed by other macros. For example, `AC_DECL_YYTEXT' examines -the output of `flex' or `lex', so it depends on `AC_PROG_LEX' having -been called first to set the shell variable `LEX'. - - Rather than forcing the user of the macros to keep track of the -dependencies between them, you can use the `AC_REQUIRE' macro to do it -automatically. `AC_REQUIRE' can ensure that a macro is only called if -it is needed, and only called once. - - - Macro: AC_REQUIRE (MACRO-NAME) - If the `m4' macro MACRO-NAME has not already been called, call it - (without any arguments). Make sure to quote MACRO-NAME with - square brackets. MACRO-NAME must have been defined using - `AC_DEFUN' or else contain a call to `AC_PROVIDE' to indicate that - it has been called. - - An alternative to using `AC_DEFUN' is to use `define' and call -`AC_PROVIDE'. Because this technique does not prevent nested messages, -it is considered obsolete. - - - Macro: AC_PROVIDE (THIS-MACRO-NAME) - Record the fact that THIS-MACRO-NAME has been called. - tHIS-MACRO-NAME should be the name of the macro that is calling - `AC_PROVIDE'. An easy way to get it is from the `m4' builtin - variable `$0', like this: - - AC_PROVIDE([$0]) - - -File: autoconf.info, Node: Suggested Ordering, Next: Obsolete Macros, Prev: Prerequisite Macros, Up: Dependencies Between Macros - -Suggested Ordering ------------------- - - Some macros should be run before another macro if both are called, -but neither *requires* that the other be called. For example, a macro -that changes the behavior of the C compiler should be called before any -macros that run the C compiler. Many of these dependencies are noted in -the documentation. - - Autoconf provides the `AC_BEFORE' macro to warn users when macros -with this kind of dependency appear out of order in a `configure.in' -file. The warning occurs when creating `configure' from -`configure.in', not when running `configure'. For example, -`AC_PROG_CPP' checks whether the C compiler can run the C preprocessor -when given the `-E' option. It should therefore be called after any -macros that change which C compiler is being used, such as -`AC_PROG_CC'. So `AC_PROG_CC' contains: - - AC_BEFORE([$0], [AC_PROG_CPP])dnl - -This warns the user if a call to `AC_PROG_CPP' has already occurred -when `AC_PROG_CC' is called. - - - Macro: AC_BEFORE (THIS-MACRO-NAME, CALLED-MACRO-NAME) - Make `m4' print a warning message on the standard error output if - CALLED-MACRO-NAME has already been called. THIS-MACRO-NAME should - be the name of the macro that is calling `AC_BEFORE'. The macro - CALLED-MACRO-NAME must have been defined using `AC_DEFUN' or else - contain a call to `AC_PROVIDE' to indicate that it has been called. - - -File: autoconf.info, Node: Obsolete Macros, Prev: Suggested Ordering, Up: Dependencies Between Macros - -Obsolete Macros ---------------- - - Configuration and portability technology has evolved over the years. -Often better ways of solving a particular problem are developed, or -ad-hoc approaches are systematized. This process has occurred in many -parts of Autoconf. One result is that some of the macros are now -considered "obsolete"; they still work, but are no longer considered -the best thing to do. Autoconf provides the `AC_OBSOLETE' macro to -warn users producing `configure' scripts when they use obsolete macros, -to encourage them to modernize. A sample call is: - - AC_OBSOLETE([$0], [; use AC_CHECK_HEADERS(unistd.h) instead])dnl - - - Macro: AC_OBSOLETE (THIS-MACRO-NAME [, SUGGESTION]) - Make `m4' print a message on the standard error output warning that - THIS-MACRO-NAME is obsolete, and giving the file and line number - where it was called. THIS-MACRO-NAME should be the name of the - macro that is calling `AC_OBSOLETE'. If SUGGESTION is given, it - is printed at the end of the warning message; for example, it can - be a suggestion for what to use instead of THIS-MACRO-NAME. - - -File: autoconf.info, Node: Manual Configuration, Next: Site Configuration, Prev: Writing Macros, Up: Top - -Manual Configuration -******************** - - A few kinds of features can't be guessed automatically by running -test programs. For example, the details of the object file format, or -special options that need to be passed to the compiler or linker. It is -possible to check for such features using ad-hoc means, such as having -`configure' check the output of the `uname' program, or looking for -libraries that are unique to particular systems. However, Autoconf -provides a uniform method for handling unguessable features. - -* Menu: - -* Specifying Names:: Specifying the system type. -* Canonicalizing:: Getting the canonical system type. -* System Type Variables:: Variables containing the system type. -* Using System Type:: What to do with the system type. - - -File: autoconf.info, Node: Specifying Names, Next: Canonicalizing, Up: Manual Configuration - -Specifying the System Type -========================== - - Like other GNU `configure' scripts, Autoconf-generated `configure' -scripts can make decisions based on a canonical name for the system -type, which has the form: - - CPU-COMPANY-SYSTEM - - `configure' can usually guess the canonical name for the type of -system it's running on. To do so it runs a script called -`config.guess', which derives the name using the `uname' command or -symbols predefined by the C preprocessor. - - Alternately, the user can specify the system type with command line -arguments to `configure'. Doing so is necessary when cross-compiling. -In the most complex case of cross-compiling, three system types are -involved. The options to specify them are: - -`--build=BUILD-TYPE' - the type of system on which the package is being configured and - compiled (rarely needed); - -`--host=HOST-TYPE' - the type of system on which the package will run; - -`--target=TARGET-TYPE' - the type of system for which any compiler tools in the package will - produce code. - -If the user gives `configure' a non-option argument, it is used as the -default for the host, target, and build system types if the user does -not specify them explicitly with options. The target and build types -default to the host type if it is given and they are not. If you are -cross-compiling, you still have to specify the names of the cross-tools -you use, in particular the C compiler, on the `configure' command line, -e.g., - - CC=m68k-coff-gcc configure --target=m68k-coff - - `configure' recognizes short aliases for many system types; for -example, `decstation' can be given on the command line instead of -`mips-dec-ultrix4.2'. `configure' runs a script called `config.sub' to -canonicalize system type aliases. - - -File: autoconf.info, Node: Canonicalizing, Next: System Type Variables, Prev: Specifying Names, Up: Manual Configuration - -Getting the Canonical System Type -================================= - - The following macros make the system type available to `configure' -scripts. They run the shell script `config.guess' to determine any -values for the host, target, and build types that they need and the user -did not specify on the command line. They run `config.sub' to -canonicalize any aliases the user gave. If you use these macros, you -must distribute those two shell scripts along with your source code. -*Note Output::, for information about the `AC_CONFIG_AUX_DIR' macro -which you can use to control which directory `configure' looks for -those scripts in. If you do not use either of these macros, -`configure' ignores any `--host', `--target', and `--build' options -given to it. - - - Macro: AC_CANONICAL_SYSTEM - Determine the system type and set output variables to the names of - the canonical system types. *Note System Type Variables::, for - details about the variables this macro sets. - - - Macro: AC_CANONICAL_HOST - Perform only the subset of `AC_CANONICAL_SYSTEM' relevant to the - host type. This is all that is needed for programs that are not - part of a compiler toolchain. - - -File: autoconf.info, Node: System Type Variables, Next: Using System Type, Prev: Canonicalizing, Up: Manual Configuration - -System Type Variables -===================== - - After calling `AC_CANONICAL_SYSTEM', the following output variables -contain the system type information. After `AC_CANONICAL_HOST', only -the `host' variables below are set. - -``build', `host', `target'' - the canonical system names; - -``build_alias', `host_alias', `target_alias'' - the names the user specified, or the canonical names if - `config.guess' was used; - -``build_cpu', `build_vendor', `build_os'' -``host_cpu', `host_vendor', `host_os'' -``target_cpu', `target_vendor', `target_os'' - the individual parts of the canonical names (for convenience). - - -File: autoconf.info, Node: Using System Type, Prev: System Type Variables, Up: Manual Configuration - -Using the System Type -===================== - - How do you use a canonical system type? Usually, you use it in one -or more `case' statements in `configure.in' to select system-specific C -files. Then link those files, which have names based on the system -name, to generic names, such as `host.h' or `target.c'. The `case' -statement patterns can use shell wildcards to group several cases -together, like in this fragment: - - case "$target" in - i386-*-mach* | i386-*-gnu*) obj_format=aout emulation=mach bfd_gas=yes ;; - i960-*-bout) obj_format=bout ;; - esac - - - Macro: AC_LINK_FILES (SOURCE..., DEST...) - Make `AC_OUTPUT' link each of the existing files SOURCE to the - corresponding link name DEST. Makes a symbolic link if possible, - otherwise a hard link. The DEST and SOURCE names should be - relative to the top level source or build directory. - - For example, this call: - - AC_LINK_FILES(config/${machine}.h config/${obj_format}.h, host.h object.h) - - creates in the current directory `host.h', which is a link to - `SRCDIR/config/${machine}.h', and `object.h', which is a link to - `SRCDIR/config/${obj_format}.h'. - - -File: autoconf.info, Node: Site Configuration, Next: Invoking configure, Prev: Manual Configuration, Up: Top - -Site Configuration -****************** - - `configure' scripts support several kinds of local configuration -decisions. There are ways for users to specify where external software -packages are, include or exclude optional features, install programs -under modified names, and set default values for `configure' options. - -* Menu: - -* External Software:: Working with other optional software. -* Package Options:: Selecting optional features. -* Site Details:: Configuring site details. -* Transforming Names:: Changing program names when installing. -* Site Defaults:: Giving `configure' local defaults. - - -File: autoconf.info, Node: External Software, Next: Package Options, Up: Site Configuration - -Working With External Software -============================== - - Some packages require, or can optionally use, other software packages -which are already installed. The user can give `configure' command -line options to specify which such external software to use. The -options have one of these forms: - - --with-PACKAGE[=ARG] - --without-PACKAGE - - For example, `--with-gnu-ld' means work with the GNU linker instead -of some other linker. `--with-x11' means work with X11. - - The user can give an argument by following the package name with `=' -and the argument. Giving an argument of `no' is for packages that are -used by default; it says to *not* use the package. An argument that is -neither `yes' nor `no' could include a name or number of a version of -the other package, to specify more precisely which other package this -program is supposed to work with. If no argument is given, it defaults -to `yes'. `--without-PACKAGE' is equivalent to `--with-PACKAGE=no'. - - For each external software package that may be used, `configure.in' -should call `AC_ARG_WITH' to detect whether the `configure' user asked -to use it. Whether each package is used or not by default, and which -arguments are valid, is up to you. - - - Macro: AC_ARG_WITH (PACKAGE, HELP-STRING, ACTION-IF-TRUE [, - ACTION-IF-FALSE]) - If the user gave `configure' the option `--with-PACKAGE' or - `--without-PACKAGE', run shell commands ACTION-IF-TRUE. Otherwise - run shell commands ACTION-IF-FALSE. The name PACKAGE indicates - another software package that this program should work with. It - should consist only of alphanumeric characters and dashes. - - The option's argument is available to the shell commands - ACTION-IF-TRUE in the shell variable `withval'. - - The argument HELP-STRING is a description of the option which - looks like this: - --with-readline support fancy command line editing - - HELP-STRING may be more than one line long, if more detail is - needed. Just make sure the columns line up in `configure --help'. - Avoid tabs in the help string. You'll need to enclose it in `[' - and `]' in order to produce the leading spaces. - - - Macro: AC_WITH (PACKAGE, ACTION-IF-TRUE [, ACTION-IF-FALSE]) - This is an obsolete version of `AC_ARG_WITH' that does not support - providing a help string. - - -File: autoconf.info, Node: Package Options, Next: Site Details, Prev: External Software, Up: Site Configuration - -Choosing Package Options -======================== - - If a software package has optional compile-time features, the user -can give `configure' command line options to specify whether to compile -them. The options have one of these forms: - - --enable-FEATURE[=ARG] - --disable-FEATURE - - These options allow users to choose which optional features to build -and install. `--enable-FEATURE' options should never make a feature -behave differently or cause one feature to replace another. They -should only cause parts of the program to be built rather than left out. - - The user can give an argument by following the feature name with `=' -and the argument. Giving an argument of `no' requests that the feature -*not* be made available. A feature with an argument looks like -`--enable-debug=stabs'. If no argument is given, it defaults to `yes'. -`--disable-FEATURE' is equivalent to `--enable-FEATURE=no'. - - For each optional feature, `configure.in' should call -`AC_ARG_ENABLE' to detect whether the `configure' user asked to include -it. Whether each feature is included or not by default, and which -arguments are valid, is up to you. - - - Macro: AC_ARG_ENABLE (FEATURE, HELP-STRING, ACTION-IF-TRUE [, - ACTION-IF-FALSE]) - If the user gave `configure' the option `--enable-FEATURE' or - `--disable-FEATURE', run shell commands ACTION-IF-TRUE. Otherwise - run shell commands ACTION-IF-FALSE. The name FEATURE indicates an - optional user-level facility. It should consist only of - alphanumeric characters and dashes. - - The option's argument is available to the shell commands - ACTION-IF-TRUE in the shell variable `enableval'. The HELP-STRING - argument is like that of `AC_ARG_WITH' (*note External - Software::.). - - - Macro: AC_ENABLE (FEATURE, ACTION-IF-TRUE [, ACTION-IF-FALSE]) - This is an obsolete version of `AC_ARG_ENABLE' that does not - support providing a help string. - - -File: autoconf.info, Node: Site Details, Next: Transforming Names, Prev: Package Options, Up: Site Configuration - -Configuring Site Details -======================== - - Some software packages require complex site-specific information. -Some examples are host names to use for certain services, company -names, and email addresses to contact. Since some configuration -scripts generated by Metaconfig ask for such information interactively, -people sometimes wonder how to get that information in -Autoconf-generated configuration scripts, which aren't interactive. - - Such site configuration information should be put in a file that is -edited *only by users*, not by programs. The location of the file can -either be based on the `prefix' variable, or be a standard location -such as the user's home directory. It could even be specified by an -environment variable. The programs should examine that file at run -time, rather than at compile time. That approach is more convenient -for users and makes the configuration process simpler than getting the -information while configuring. *Note Variables for Installation -Directories: (standards)Directory Variables, for more information on -where to put data files. - diff --git a/util/autoconf/autoconf.info-4 b/util/autoconf/autoconf.info-4 deleted file mode 100644 index f296435..0000000 --- a/util/autoconf/autoconf.info-4 +++ /dev/null @@ -1,1123 +0,0 @@ -This is Info file autoconf.info, produced by Makeinfo-1.55 from the -input file ./autoconf.texi. - -START-INFO-DIR-ENTRY -* Autoconf: (autoconf). Create source code configuration scripts. -END-INFO-DIR-ENTRY - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. - - Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Foundation. - - -File: autoconf.info, Node: Transforming Names, Next: Site Defaults, Prev: Site Details, Up: Site Configuration - -Transforming Program Names When Installing -========================================== - - Autoconf supports changing the names of programs when installing -them. In order to use these transformations, `configure.in' must call -the macro `AC_ARG_PROGRAM'. - - - Macro: AC_ARG_PROGRAM - Place in output variable `program_transform_name' a sequence of - `sed' commands for changing the names of installed programs. - - If any of the options described below are given to `configure', - program names are transformed accordingly. Otherwise, if - `AC_CANONICAL_SYSTEM' has been called and a `--target' value is - given that differs from the host type (specified with `--host' or - defaulted by `config.sub'), the target type followed by a dash is - used as a prefix. Otherwise, no program name transformation is - done. - -* Menu: - -* Transformation Options:: `configure' options to transforme names. -* Transformation Examples:: Sample uses of transforming names. -* Transformation Rules:: `Makefile' uses of transforming names. - - -File: autoconf.info, Node: Transformation Options, Next: Transformation Examples, Up: Transforming Names - -Transformation Options ----------------------- - - You can specify name transformations by giving `configure' these -command line options: - -`--program-prefix=PREFIX' - prepend PREFIX to the names; - -`--program-suffix=SUFFIX' - append SUFFIX to the names; - -`--program-transform-name=EXPRESSION' - perform `sed' substitution EXPRESSION on the names. - - -File: autoconf.info, Node: Transformation Examples, Next: Transformation Rules, Prev: Transformation Options, Up: Transforming Names - -Transformation Examples ------------------------ - - These transformations are useful with programs that can be part of a -cross-compilation development environment. For example, a -cross-assembler running on a Sun 4 configured with -`--target=i960-vxworks' is normally installed as `i960-vxworks-as', -rather than `as', which could be confused with a native Sun 4 assembler. - - You can force a program name to begin with `g', if you don't want -GNU programs installed on your system to shadow other programs with the -same name. For example, if you configure GNU `diff' with -`--program-prefix=g', then when you run `make install' it is installed -as `/usr/local/bin/gdiff'. - - As a more sophistocated example, you could use - --program-transform-name='s/^/g/; s/^gg/g/; s/^gless/less/' - -to prepend `g' to most of the program names in a source tree, excepting -those like `gdb' that already have one and those like `less' and -`lesskey' that aren't GNU programs. (That is assuming that you have a -source tree containing those programs that is set up to use this -feature.) - - One way to install multiple versions of some programs simultaneously -is to append a version number to the name of one or both. For example, -if you want to keep Autoconf version 1 around for awhile, you can -configure Autoconf version 2 using `--program-suffix=2' to install the -programs as `/usr/local/bin/autoconf2', `/usr/local/bin/autoheader2', -etc. - - -File: autoconf.info, Node: Transformation Rules, Prev: Transformation Examples, Up: Transforming Names - -Transformation Rules --------------------- - - Here is how to use the variable `program_transform_name' in a -`Makefile.in': - - transform=@program_transform_name@ - install: all - $(INSTALL_PROGRAM) myprog $(bindir)/`echo myprog|sed '$(transform)'` - - uninstall: - rm -f $(bindir)/`echo myprog|sed '$(transform)'` - -If you have more than one program to install, you can do it in a loop: - - PROGRAMS=cp ls rm - install: - for p in $(PROGRAMS); do \ - $(INSTALL_PROGRAM) $$p $(bindir)/`echo $$p|sed '$(transform)'`; \ - done - - uninstall: - for p in $(PROGRAMS); do \ - rm -f $(bindir)/`echo $$p|sed '$(transform)'`; \ - done - - Whether to do the transformations on documentation files (Texinfo or -`man') is a tricky question; there seems to be no perfect answer, due -to the several reasons for name transforming. Documentation is not -usually particular to a specific architecture, and Texinfo files do not -conflict with system documentation. But they might conflict with -earlier versions of the same files, and `man' pages sometimes do -conflict with system documentation. As a compromise, it is probably -best to do name transformations on `man' pages but not on Texinfo -manuals. - - -File: autoconf.info, Node: Site Defaults, Prev: Transforming Names, Up: Site Configuration - -Setting Site Defaults -===================== - - Autoconf-generated `configure' scripts allow your site to provide -default values for some configuration values. You do this by creating -site- and system-wide initialization files. - - If the environment variable `CONFIG_SITE' is set, `configure' uses -its value as the name of a shell script to read. Otherwise, it reads -the shell script `PREFIX/share/config.site' if it exists, then -`PREFIX/etc/config.site' if it exists. Thus, settings in -machine-specific files override those in machine-independent ones in -case of conflict. - - Site files can be arbitrary shell scripts, but only certain kinds of -code are really appropriate to be in them. Because `configure' reads -any cache file after it has read any site files, a site file can define -a default cache file to be shared between all Autoconf-generated -`configure' scripts run on that system. If you set a default cache -file in a site file, it is a good idea to also set the output variable -`CC' in that site file, because the cache file is only valid for a -particular compiler, but many systems have several available. - - Site files are also good places to set default values for other -output variables, such as `CFLAGS', if you need to give them non-default -values: anything you would normally do, repetitively, on the command -line. If you use non-default values for PREFIX or EXEC_PREFIX -(wherever you locate the site file), you can set them in the site file -if you specify it with the `CONFIG_SITE' environment variable. - - You can set some cache values in the site file itself. Doing this is -useful if you are cross-compiling, so it is impossible to check features -that require running a test program. You could "prime the cache" by -setting those values correctly for that system in -`PREFIX/etc/config.site'. To find out the names of the cache variables -you need to set, look for shell variables with `_cv_' in their names in -the affected `configure' scripts, or in the Autoconf `m4' source code -for those macros. - - The cache file is careful to not override any variables set in the -site files. Similarly, you should not override command-line options in -the site files. Your code should check that variables such as `prefix' -and `cache_file' have their default values (as set near the top of -`configure') before changing them. - - Here is a sample file `/usr/share/local/gnu/share/config.site'. The -command `configure --prefix=/usr/share/local/gnu' would read this file -(if `CONFIG_SITE' is not set to a different file). - - # config.site for configure - # - # Default --prefix and --exec-prefix. - test "$prefix" = NONE && prefix=/usr/share/local/gnu - test "$exec_prefix" = NONE && exec_prefix=/usr/local/gnu - # - # Give Autoconf 2.x generated configure scripts a shared default - # cache file for feature test results, architecture-specific. - if test "$cache_file" = ./config.cache; then - cache_file="$prefix/var/config.cache" - # A cache file is only valid for one C compiler. - CC=gcc - fi - - -File: autoconf.info, Node: Invoking configure, Next: Invoking config.status, Prev: Site Configuration, Up: Top - -Running `configure' Scripts -*************************** - - Below are instructions on how to configure a package that uses a -`configure' script, suitable for inclusion as an `INSTALL' file in the -package. A plain-text version of `INSTALL' which you may use comes -with Autoconf. - -* Menu: - -* Basic Installation:: Instructions for typical cases. -* Compilers and Options:: Selecting compilers and optimization. -* Build Directory:: Configuring in a different directory. -* Installation Names:: Installing in different directories. -* Optional Features:: Selecting optional features. -* System Type:: Specifying the system type. -* Sharing Defaults:: Setting site-wide defaults for `configure'. -* Operation Controls:: Changing how `configure' runs. - - -File: autoconf.info, Node: Basic Installation, Next: Compilers and Options, Up: Invoking configure - -Basic Installation -================== - - These are generic installation instructions. - - The `configure' shell script attempts to guess correct values for -various system-dependent variables used during compilation. It uses -those values to create a `Makefile' in each directory of the package. -It may also create one or more `.h' files containing system-dependent -definitions. Finally, it creates a shell script `config.status' that -you can run in the future to recreate the current configuration, a file -`config.cache' that saves the results of its tests to speed up -reconfiguring, and a file `config.log' containing compiler output -(useful mainly for debugging `configure'). - - If you need to do unusual things to compile the package, please try -to figure out how `configure' could check whether to do them, and mail -diffs or instructions to the address given in the `README' so they can -be considered for the next release. If at some point `config.cache' -contains results you don't want to keep, you may remove or edit it. - - The file `configure.in' is used to create `configure' by a program -called `autoconf'. You only need `configure.in' if you want to change -it or regenerate `configure' using a newer version of `autoconf'. - -The simplest way to compile this package is: - - 1. `cd' to the directory containing the package's source code and type - `./configure' to configure the package for your system. If you're - using `csh' on an old version of System V, you might need to type - `sh ./configure' instead to prevent `csh' from trying to execute - `configure' itself. - - Running `configure' takes awhile. While running, it prints some - messages telling which features it is checking for. - - 2. Type `make' to compile the package. - - 3. Optionally, type `make check' to run any self-tests that come with - the package. - - 4. Type `make install' to install the programs and any data files and - documentation. - - 5. You can remove the program binaries and object files from the - source directory by typing `make clean'. To also remove the files - that `configure' created (so you can compile the package for a - different kind of computer), type `make distclean'. - - -File: autoconf.info, Node: Compilers and Options, Next: Build Directory, Prev: Basic Installation, Up: Invoking configure - -Compilers and Options -===================== - - Some systems require unusual options for compilation or linking that -the `configure' script does not know about. You can give `configure' -initial values for variables by setting them in the environment. Using -a Bourne-compatible shell, you can do that on the command line like -this: - CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure - -Or on systems that have the `env' program, you can do it like this: - env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure - - -File: autoconf.info, Node: Build Directory, Next: Installation Names, Prev: Compilers and Options, Up: Invoking configure - -Using a Different Build Directory -================================= - - You can compile the package in a different directory from the one -containing the source code. Doing so allows you to compile it on more -than one kind of computer at the same time. To do this, you must use a -version of `make' that supports the `VPATH' variable, such as GNU -`make'. `cd' to the directory where you want the object files and -executables to go and run the `configure' script. `configure' -automatically checks for the source code in the directory that -`configure' is in and in `..'. - - -File: autoconf.info, Node: Installation Names, Next: Optional Features, Prev: Build Directory, Up: Invoking configure - -Installation Names -================== - - By default, `make install' will install the package's files in -`/usr/local/bin', `/usr/local/man', etc. You can specify an -installation prefix other than `/usr/local' by giving `configure' the -option `--prefix=PATH'. - - You can specify separate installation prefixes for -architecture-specific files and architecture-independent files. If you -give `configure' the option `--exec-prefix=PATH', the package will use -PATH as the prefix for installing programs and libraries. -Documentation and other data files will still use the regular prefix. - - If the package supports it, you can cause programs to be installed -with an extra prefix or suffix on their names by giving `configure' the -option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. - - -File: autoconf.info, Node: Optional Features, Next: System Type, Prev: Installation Names, Up: Invoking configure - -Optional Features -================= - - Some packages pay attention to `--enable-FEATURE' options to -`configure', where FEATURE indicates an optional part of the package. -They may also pay attention to `--with-PACKAGE' options, where PACKAGE -is something like `gnu-as' or `x' (for the X Window System). The -`README' should mention any `--enable-' and `--with-' options that the -package recognizes. - - For packages that use the X Window System, `configure' can usually -find the X include and library files automatically, but if it doesn't, -you can use the `configure' options `--x-includes=DIR' and -`--x-libraries=DIR' to specify their locations. - - -File: autoconf.info, Node: System Type, Next: Sharing Defaults, Prev: Optional Features, Up: Invoking configure - -Specifying the System Type -========================== - - There may be some features `configure' can not figure out -automatically, but needs to determine by the type of host the package -will run on. Usually `configure' can figure that out, but if it prints -a message saying it can not guess the host type, give it the -`--host=TYPE' option. TYPE can either be a short name for the system -type, such as `sun4', or a canonical name with three fields: - CPU-COMPANY-SYSTEM - -See the file `config.sub' for the possible values of each field. If -`config.sub' isn't included in this package, then this package doesn't -need to know the host type. - - If you are building compiler tools for cross-compiling, you can also -use the `--target=TYPE' option to select the type of system they will -produce code for and the `--build=TYPE' option to select the type of -system on which you are compiling the package. - - -File: autoconf.info, Node: Sharing Defaults, Next: Operation Controls, Prev: System Type, Up: Invoking configure - -Sharing Defaults -================ - - If you want to set default values for `configure' scripts to share, -you can create a site shell script called `config.site' that gives -default values for variables like `CC', `cache_file', and `prefix'. -`configure' looks for `PREFIX/share/config.site' if it exists, then -`PREFIX/etc/config.site' if it exists. Or, you can set the -`CONFIG_SITE' environment variable to the location of the site script. -A warning: not all `configure' scripts look for a site script. - - -File: autoconf.info, Node: Operation Controls, Prev: Sharing Defaults, Up: Invoking configure - -Operation Controls -================== - - `configure' recognizes the following options to control how it -operates. - -`--cache-file=FILE' - Save the results of the tests in FILE instead of `config.cache'. - Set FILE to `/dev/null' to disable caching, for debugging - `configure'. - -`--help' - Print a summary of the options to `configure', and exit. - -`--quiet' -`--silent' -`-q' - Do not print messages saying which checks are being made. - -`--srcdir=DIR' - Look for the package's source code in directory DIR. Usually - `configure' can determine that directory automatically. - -`--version' - Print the version of Autoconf used to generate the `configure' - script, and exit. - -`configure' also accepts some other, not widely useful, options. - - -File: autoconf.info, Node: Invoking config.status, Next: Questions, Prev: Invoking configure, Up: Top - -Recreating a Configuration -************************** - - The `configure' script creates a file named `config.status' which -describes which configuration options were specified when the package -was last configured. This file is a shell script which, if run, will -recreate the same configuration. - - You can give `config.status' the `--recheck' option to update -itself. This option is useful if you change `configure', so that the -results of some tests might be different from the previous run. The -`--recheck' option re-runs `configure' with the same arguments you used -before, plus the `--no-create' option, which prevent `configure' from -running `config.status' and creating `Makefile' and other files, and -the `--no-recursion' option, which prevents `configure' from running -other `configure' scripts in subdirectories. (This is so other -`Makefile' rules can run `config.status' when it changes; *note -Automatic Remaking::., for an example). - - `config.status' also accepts the options `--help', which prints a -summary of the options to `config.status', and `--version', which -prints the version of Autoconf used to create the `configure' script -that generated `config.status'. - - `config.status' checks several optional environment variables that -can alter its behavior: - - - Variable: CONFIG_SHELL - The shell with which to run `configure' for the `--recheck' - option. It must be Bourne-compatible. The default is `/bin/sh'. - - - Variable: CONFIG_STATUS - The file name to use for the shell script that records the - configuration. The default is `./config.status'. This variable is - useful when one package uses parts of another and the `configure' - scripts shouldn't be merged because they are maintained separately. - - The following variables provide one way for separately distributed -packages to share the values computed by `configure'. Doing so can be -useful if some of the packages need a superset of the features that one -of them, perhaps a common library, does. These variables allow a -`config.status' file to create files other than the ones that its -`configure.in' specifies, so it can be used for a different package. - - - Variable: CONFIG_FILES - The files in which to perform `@VARIABLE@' substitutions. The - default is the arguments given to `AC_OUTPUT' in `configure.in'. - - - Variable: CONFIG_HEADERS - The files in which to substitute C `#define' statements. The - default is the arguments given to `AC_CONFIG_HEADER'; if that - macro was not called, `config.status' ignores this variable. - - These variables also allow you to write `Makefile' rules that -regenerate only some of the files. For example, in the dependencies -given above (*note Automatic Remaking::.), `config.status' is run twice -when `configure.in' has changed. If that bothers you, you can make -each run only regenerate the files for that rule: - - config.h: stamp-h - stamp-h: config.h.in config.status - CONFIG_FILES= CONFIG_HEADERS=config.h ./config.status - echo > stamp-h - - Makefile: Makefile.in config.status - CONFIG_FILES=Makefile CONFIG_HEADERS= ./config.status - -(If `configure.in' does not call `AC_CONFIG_HEADER', there is no need -to set `CONFIG_HEADERS' in the `make' rules.) - - -File: autoconf.info, Node: Questions, Next: Upgrading, Prev: Invoking config.status, Up: Top - -Questions About Autoconf -************************ - - Several questions about Autoconf come up occasionally. Here some of -them are addressed. - -* Menu: - -* Distributing:: Distributing `configure' scripts. -* Why GNU m4:: Why not use the standard `m4'? -* Bootstrapping:: Autoconf and GNU `m4' require each other? -* Why Not Imake:: Why GNU uses `configure' instead of Imake. - - -File: autoconf.info, Node: Distributing, Next: Why GNU m4, Up: Questions - -Distributing `configure' Scripts -================================ - - What are the restrictions on distributing `configure' - scripts that Autoconf generates? How does that affect my - programs that use them? - - There are no restrictions on how the configuration scripts that -Autoconf produces may be distributed or used. In Autoconf version 1, -they were covered by the GNU General Public License. We still -encourage software authors to distribute their work under terms like -those of the GPL, but doing so is not required to use Autoconf. - - Of the other files that might be used with `configure', -`config.h.in' is under whatever copyright you use for your -`configure.in', since it is derived from that file and from the public -domain file `acconfig.h'. `config.sub' and `config.guess' have an -exception to the GPL when they are used with an Autoconf-generated -`configure' script, which permits you to distribute them under the same -terms as the rest of your package. `install-sh' is from the X -Consortium and is not copyrighted. - - -File: autoconf.info, Node: Why GNU m4, Next: Bootstrapping, Prev: Distributing, Up: Questions - -Why Require GNU `m4'? -===================== - - Why does Autoconf require GNU `m4'? - - Many `m4' implementations have hard-coded limitations on the size -and number of macros, which Autoconf exceeds. They also lack several -builtin macros that it would be difficult to get along without in a -sophisticated application like Autoconf, including: - - builtin - indir - patsubst - __file__ - __line__ - - Since only software maintainers need to use Autoconf, and since GNU -`m4' is simple to configure and install, it seems reasonable to require -GNU `m4' to be installed also. Many maintainers of GNU and other free -software already have most of the GNU utilities installed, since they -prefer them. - - -File: autoconf.info, Node: Bootstrapping, Next: Why Not Imake, Prev: Why GNU m4, Up: Questions - -How Can I Bootstrap? -==================== - - If Autoconf requires GNU `m4' and GNU `m4' has an - Autoconf `configure' script, how do I bootstrap? It seems - like a chicken and egg problem! - - This is a misunderstanding. Although GNU `m4' does come with a -`configure' script produced by Autoconf, Autoconf is not required in -order to run the script and install GNU `m4'. Autoconf is only -required if you want to change the `m4' `configure' script, which few -people have to do (mainly its maintainer). - - -File: autoconf.info, Node: Why Not Imake, Prev: Bootstrapping, Up: Questions - -Why Not Imake? -============== - - Why not use Imake instead of `configure' scripts? - - Several people have written addressing this question, so I include -adaptations of their explanations here. - - The following answer is based on one written by Richard Pixley: - - Autoconf generated scripts frequently work on machines which it has -never been set up to handle before. That is, it does a good job of -inferring a configuration for a new system. Imake cannot do this. - - Imake uses a common database of host specific data. For X11, this -makes sense because the distribution is made as a collection of tools, -by one central authority who has control over the database. - - GNU tools are not released this way. Each GNU tool has a maintainer; -these maintainers are scattered across the world. Using a common -database would be a maintenance nightmare. Autoconf may appear to be -this kind of database, but in fact it is not. Instead of listing host -dependencies, it lists program requirements. - - Imake is special-purpose. It is directed at building the X11 -distribution. By comparison to the GNU tools, this is a simple problem. -If you view the GNU suite as a collection of native tools, then the -problems are similar. But the GNU tools are more powerful than that. -The development tools can be configured as cross tools in almost any -host+target permutation. All of these configurations can be installed -concurrently. They can even be configured to share host independent -files across hosts. Imake doesn't address these issues. - - Imake templates are a form of standardization. The GNU coding -standards address the same issues without necessarily imposing the same -restrictions. - - Here is some further explanation, written by Per Bothner: - - One of the advantages of Imake is that it easy to generate large -Makefiles using `cpp''s `#include' and macro mechanisms. However, -`cpp' is not programmable: it has limited conditional facilities, and -no looping. And `cpp' cannot inspect its environment. - - All of these problems are solved by using `sh' instead of `cpp'. -The shell is fully programmable, has macro substitution, can execute -(or source) other shell scripts, and can inspect its environment. - - Paul Eggert elaborates more: - - With Autoconf, installers need not assume that Imake itself is -already installed and working well. This may not seem like much of an -advantage to people who are accustomed to Imake. But on many hosts -Imake is not installed or the default installation is not working well, -and requiring Imake to install a package hinders the acceptance of that -package on those hosts. For example, the Imake template and -configuration files might not be installed properly on a host, or the -Imake build procedure might wrongly assume that all source files are in -one big directory tree, or the Imake configuration might assume one -compiler whereas the package or the installer needs to use another, or -there might be a version mismatch between the Imake expected by the -package and the Imake suported by the host. These problems are much -rarer with Autoconf, where each package comes with its own independent -configuration processor. - - Also, Imake often suffers from unexpected interactions between -`make' and the installer's C preprocessor. The fundamental problem -here is that the C preprocessor was designed to preprocess C programs, -not `Makefile's. This is much less of a problem with Autoconf, which -uses the general-purpose preprocessor `m4', and where the package's -author (rather than the installer) does the preprocessing in a standard -way. - - Finally, Mark Eichin notes: - - Imake isn't all that extensible, either. In order to add new -features to Imake, you need to provide you own project template, and -duplicate most of the features of the existing one. This means that -for a sophisticated project, using the vendor-provided Imake templates -fails to provide any leverage--since they don't cover anything that -your own project needs (unless it is an X11 program). - - On the other side, though: - - The one advantage that Imake has over `configure': `Imakefile's tend -to be much shorter (likewise, less redundant) than `Makefile.in's. -There is a fix to this, however--at least for the Kerberos V5 tree, -we've modified things to call in common `post.in' and `pre.in' -`Makefile' fragments for the entire tree. This means that a lot of -common things don't have to be duplicated, even though they normally -are in `configure' setups. - - -File: autoconf.info, Node: Upgrading, Next: History, Prev: Questions, Up: Top - -Upgrading From Version 1 -************************ - - Autoconf version 2 is mostly backward compatible with version 1. -However, it introduces better ways to do some things, and doesn't -support some of the ugly things in version 1. So, depending on how -sophisticated your `configure.in' files are, you might have to do some -manual work in order to upgrade to version 2. This chapter points out -some problems to watch for when upgrading. Also, perhaps your -`configure' scripts could benefit from some of the new features in -version 2; the changes are summarized in the file `NEWS' in the -Autoconf distribution. - - First, make sure you have GNU `m4' version 1.1 or higher installed, -preferably 1.3 or higher. Versions before 1.1 have bugs that prevent -them from working with Autoconf version 2. Versions 1.3 and later are -much faster than earlier versions, because as of version 1.3, GNU `m4' -has a more efficient implementation of diversions and can freeze its -internal state in a file that it can read back quickly. - -* Menu: - -* Changed File Names:: Files you might rename. -* Changed Makefiles:: New things to put in `Makefile.in'. -* Changed Macros:: Macro calls you might replace. -* Invoking autoupdate:: Replacing old macro names in `configure.in'. -* Changed Results:: Changes in how to check test results. -* Changed Macro Writing:: Better ways to write your own macros. - - -File: autoconf.info, Node: Changed File Names, Next: Changed Makefiles, Up: Upgrading - -Changed File Names -================== - - If you have an `aclocal.m4' installed with Autoconf (as opposed to -in a particular package's source directory), you must rename it to -`acsite.m4'. *Note Invoking autoconf::. - - If you distribute `install.sh' with your package, rename it to -`install-sh' so `make' builtin rules won't inadvertantly create a file -called `install' from it. `AC_PROG_INSTALL' looks for the script under -both names, but it is best to use the new name. - - If you were using `config.h.top' or `config.h.bot', you still can, -but you will have less clutter if you merge them into `acconfig.h'. -*Note Invoking autoheader::. - - -File: autoconf.info, Node: Changed Makefiles, Next: Changed Macros, Prev: Changed File Names, Up: Upgrading - -Changed Makefiles -================= - - Add `@CFLAGS@', `@CPPFLAGS@', and `@LDFLAGS@' in your `Makefile.in' -files, so they can take advantage of the values of those variables in -the environment when `configure' is run. Doing this isn't necessary, -but it's a convenience for users. - - Also add `@configure_input@' in a comment to each input file for -`AC_OUTPUT', so that the output files will contain a comment saying -they were produced by `configure'. Automatically selecting the right -comment syntax for all the kinds of files that people call `AC_OUTPUT' -on became too much work. - - Add `config.log' and `config.cache' to the list of files you remove -in `distclean' targets. - - If you have the following in `Makefile.in': - - prefix = /usr/local - exec_prefix = ${prefix} - -you must change it to: - - prefix = @prefix@ - exec_prefix = @exec_prefix@ - -The old feature of replacing those variables without `@' characters -around them has been removed. - - -File: autoconf.info, Node: Changed Macros, Next: Invoking autoupdate, Prev: Changed Makefiles, Up: Upgrading - -Changed Macros -============== - - Many of the macros were renamed in Autoconf version 2. You can still -use the old names, but the new ones are clearer, and it's easier to find -the documentation for them. *Note Old Macro Names::, for a table -showing the new names for the old macros. Use the `autoupdate' program -to convert your `configure.in' to using the new macro names. *Note -Invoking autoupdate::. - - Some macros have been superseded by similar ones that do the job -better, but are not call-compatible. If you get warnings about calling -obsolete macros while running `autoconf', you may safely ignore them, -but your `configure' script will generally work better if you follow -the advice it prints about what to replace the obsolete macros with. In -particular, the mechanism for reporting the results of tests has -changed. If you were using `echo' or `AC_VERBOSE' (perhaps via -`AC_COMPILE_CHECK'), your `configure' script's output will look better -if you switch to `AC_MSG_CHECKING' and `AC_MSG_RESULT'. *Note Printing -Messages::. Those macros work best in conjunction with cache -variables. *Note Caching Results::. - - -File: autoconf.info, Node: Invoking autoupdate, Next: Changed Results, Prev: Changed Macros, Up: Upgrading - -Using `autoupdate' to Modernize `configure' -=========================================== - - The `autoupdate' program updates a `configure.in' file that calls -Autoconf macros by their old names to use the current macro names. In -version 2 of Autoconf, most of the macros were renamed to use a more -uniform and descriptive naming scheme. *Note Macro Names::, for a -description of the new scheme. Although the old names still work -(*note Old Macro Names::., for a list of the old macro names and the -corresponding new names), you can make your `configure.in' files more -readable and make it easier to use the current Autoconf documentation -if you update them to use the new macro names. - - If given no arguments, `autoupdate' updates `configure.in', backing -up the original version with the suffix `~' (or the value of the -environment variable `SIMPLE_BACKUP_SUFFIX', if that is set). If you -give `autoupdate' an argument, it reads that file instead of -`configure.in' and writes the updated file to the standard output. - -`autoupdate' accepts the following options: - -`--help' -`-h' - Print a summary of the command line options and exit. - -`--macrodir=DIR' -`-m DIR' - Look for the Autoconf macro files in directory DIR instead of the - default installation directory. You can also set the `AC_MACRODIR' - environment variable to a directory; this option overrides the - environment variable. - -`--version' - Print the version number of `autoupdate' and exit. - - -File: autoconf.info, Node: Changed Results, Next: Changed Macro Writing, Prev: Invoking autoupdate, Up: Upgrading - -Changed Results -=============== - - If you were checking the results of previous tests by examining the -shell variable `DEFS', you need to switch to checking the values of the -cache variables for those tests. `DEFS' no longer exists while -`configure' is running; it is only created when generating output -files. This difference from version 1 is because properly quoting the -contents of that variable turned out to be too cumbersome and -inefficient to do every time `AC_DEFINE' is called. *Note Cache -Variable Names::. - - For example, here is a `configure.in' fragment written for Autoconf -version 1: - - AC_HAVE_FUNCS(syslog) - case "$DEFS" in - *-DHAVE_SYSLOG*) ;; - *) # syslog is not in the default libraries. See if it's in some other. - saved_LIBS="$LIBS" - for lib in bsd socket inet; do - AC_CHECKING(for syslog in -l$lib) - LIBS="$saved_LIBS -l$lib" - AC_HAVE_FUNCS(syslog) - case "$DEFS" in - *-DHAVE_SYSLOG*) break ;; - *) ;; - esac - LIBS="$saved_LIBS" - done ;; - esac - - Here is a way to write it for version 2: - - AC_CHECK_FUNCS(syslog) - if test $ac_cv_func_syslog = no; then - # syslog is not in the default libraries. See if it's in some other. - for lib in bsd socket inet; do - AC_CHECK_LIB($lib, syslog, [AC_DEFINE(HAVE_SYSLOG) - LIBS="$LIBS $lib"; break]) - done - fi - - If you were working around bugs in `AC_DEFINE_UNQUOTED' by adding -backslashes before quotes, you need to remove them. It now works -predictably, and does not treat quotes (except backquotes) specially. -*Note Setting Output Variables::. - - All of the boolean shell variables set by Autoconf macros now use -`yes' for the true value. Most of them use `no' for false, though for -backward compatibility some use the empty string instead. If you were -relying on a shell variable being set to something like 1 or `t' for -true, you need to change your tests. - - -File: autoconf.info, Node: Changed Macro Writing, Prev: Changed Results, Up: Upgrading - -Changed Macro Writing -===================== - - When defining your own macros, you should now use `AC_DEFUN' instead -of `define'. `AC_DEFUN' automatically calls `AC_PROVIDE' and ensures -that macros called via `AC_REQUIRE' do not interrupt other macros, to -prevent nested `checking...' messages on the screen. There's no actual -harm in continuing to use the older way, but it's less convenient and -attractive. *Note Macro Definitions::. - - You probably looked at the macros that came with Autoconf as a guide -for how to do things. It would be a good idea to take a look at the new -versions of them, as the style is somewhat improved and they take -advantage of some new features. - - If you were doing tricky things with undocumented Autoconf internals -(macros, variables, diversions), check whether you need to change -anything to account for changes that have been made. Perhaps you can -even use an officially supported technique in version 2 instead of -kludging. Or perhaps not. - - To speed up your locally written feature tests, add caching to them. -See whether any of your tests are of general enough usefulness to -encapsulate into macros that you can share. - - -File: autoconf.info, Node: History, Next: Old Macro Names, Prev: Upgrading, Up: Top - -History of Autoconf -******************* - - You may be wondering, Why was Autoconf originally written? How did -it get into its present form? (Why does it look like gorilla spit?) If -you're not wondering, then this chapter contains no information useful -to you, and you might as well skip it. If you *are* wondering, then -let there be light... - -* Menu: - -* Genesis:: Prehistory and naming of `configure'. -* Exodus:: The plagues of `m4' and Perl. -* Leviticus:: The priestly code of portability arrives. -* Numbers:: Growth and contributors. -* Deuteronomy:: Approaching the promises of easy configuration. - - -File: autoconf.info, Node: Genesis, Next: Exodus, Up: History - -Genesis -======= - - In June 1991 I was maintaining many of the GNU utilities for the Free -Software Foundation. As they were ported to more platforms and more -programs were added, the number of `-D' options that users had to -select in the `Makefile' (around 20) became burdensome. Especially for -me--I had to test each new release on a bunch of different systems. So -I wrote a little shell script to guess some of the correct settings for -the fileutils package, and released it as part of fileutils 2.0. That -`configure' script worked well enough that the next month I adapted it -(by hand) to create similar `configure' scripts for several other GNU -utilities packages. Brian Berliner also adapted one of my scripts for -his CVS revision control system. - - Later that summer, I learned that Richard Stallman and Richard Pixley -were developing similar scripts to use in the GNU compiler tools; so I -adapted my `configure' scripts to support their evolving interface: -using the file name `Makefile.in' as the templates; adding `+srcdir', -the first option (of many); and creating `config.status' files. - - -File: autoconf.info, Node: Exodus, Next: Leviticus, Prev: Genesis, Up: History - -Exodus -====== - - As I got feedback from users, I incorporated many improvements, using -Emacs to search and replace, cut and paste, similar changes in each of -the scripts. As I adapted more GNU utilities packages to use -`configure' scripts, updating them all by hand became impractical. -Rich Murphey, the maintainer of the GNU graphics utilities, sent me mail -saying that the `configure' scripts were great, and asking if I had a -tool for generating them that I could send him. No, I thought, but I -should! So I started to work out how to generate them. And the -journey from the slavery of hand-written `configure' scripts to the -abundance and ease of Autoconf began. - - Cygnus `configure', which was being developed at around that time, -is table driven; it is meant to deal mainly with a discrete number of -system types with a small number of mainly unguessable features (such as -details of the object file format). The automatic configuration system -that Brian Fox had developed for Bash takes a similar approach. For -general use, it seems to me a hopeless cause to try to maintain an -up-to-date database of which features each variant of each operating -system has. It's easier and more reliable to check for most features on -the fly--especially on hybrid systems that people have hacked on -locally or that have patches from vendors installed. - - I considered using an architecture similar to that of Cygnus -`configure', where there is a single `configure' script that reads -pieces of `configure.in' when run. But I didn't want to have to -distribute all of the feature tests with every package, so I settled on -having a different `configure' made from each `configure.in' by a -preprocessor. That approach also offered more control and flexibility. - - I looked briefly into using the Metaconfig package, by Larry Wall, -Harlan Stenn, and Raphael Manfredi, but I decided not to for several -reasons. The `Configure' scripts it produces are interactive, which I -find quite inconvenient; I didn't like the ways it checked for some -features (such as library functions); I didn't know that it was still -being maintained, and the `Configure' scripts I had seen didn't work on -many modern systems (such as System V R4 and NeXT); it wasn't very -flexible in what it could do in response to a feature's presence or -absence; I found it confusing to learn; and it was too big and complex -for my needs (I didn't realize then how much Autoconf would eventually -have to grow). - - I considered using Perl to generate my style of `configure' scripts, -but decided that `m4' was better suited to the job of simple textual -substitutions: it gets in the way less, because output is implicit. -Plus, everyone already has it. (Initially I didn't rely on the GNU -extensions to `m4'.) Also, some of my friends at the University of -Maryland had recently been putting `m4' front ends on several programs, -including `tvtwm', and I was interested in trying out a new language. - - -File: autoconf.info, Node: Leviticus, Next: Numbers, Prev: Exodus, Up: History - -Leviticus -========= - - Since my `configure' scripts determine the system's capabilities -automatically, with no interactive user intervention, I decided to call -the program that generates them Autoconfig. But with a version number -tacked on, that name would be too long for old UNIX file systems, so I -shortened it to Autoconf. - - In the fall of 1991 I called together a group of fellow questers -after the Holy Grail of portability (er, that is, alpha testers) to -give me feedback as I encapsulated pieces of my handwritten scripts in -`m4' macros and continued to add features and improve the techniques -used in the checks. Prominent among the testers were Franc,ois Pinard, -who came up with the idea of making an `autoconf' shell script to run -`m4' and check for unresolved macro calls; Richard Pixley, who -suggested running the compiler instead of searching the file system to -find include files and symbols, for more accurate results; Karl Berry, -who got Autoconf to configure TeX and added the macro index to the -documentation; and Ian Taylor, who added support for creating a C -header file as an alternative to putting `-D' options in a `Makefile', -so he could use Autoconf for his UUCP package. The alpha testers -cheerfully adjusted their files again and again as the names and -calling conventions of the Autoconf macros changed from release to -release. They all contributed many specific checks, great ideas, and -bug fixes. - - -File: autoconf.info, Node: Numbers, Next: Deuteronomy, Prev: Leviticus, Up: History - -Numbers -======= - - In July 1992, after months of alpha testing, I released Autoconf 1.0, -and converted many GNU packages to use it. I was surprised by how -positive the reaction to it was. More people started using it than I -could keep track of, including people working on software that wasn't -part of the GNU Project (such as TCL, FSP, and Kerberos V5). Autoconf -continued to improve rapidly, as many people using the `configure' -scripts reported problems they encountered. - - Autoconf turned out to be a good torture test for `m4' -implementations. UNIX `m4' started to dump core because of the length -of the macros that Autoconf defined, and several bugs showed up in GNU -`m4' as well. Eventually, we realized that we needed to use some -features that only GNU `m4' has. 4.3BSD `m4', in particular, has an -impoverished set of builtin macros; the System V version is better, but -still doesn't provide everything we need. - - More development occurred as people put Autoconf under more stresses -(and to uses I hadn't anticipated). Karl Berry added checks for X11. -david zuhn contributed C++ support. Franc,ois Pinard made it diagnose -invalid arguments. Jim Blandy bravely coerced it into configuring GNU -Emacs, laying the groundwork for several later improvements. Roland -McGrath got it to configure the GNU C Library, wrote the `autoheader' -script to automate the creation of C header file templates, and added a -`--verbose' option to `configure'. Noah Friedman added the -`--macrodir' option and `AC_MACRODIR' environment variable. (He also -coined the term "autoconfiscate" to mean "adapt a software package to -use Autoconf".) Roland and Noah improved the quoting protection in -`AC_DEFINE' and fixed many bugs, especially when I got sick of dealing -with portability problems from February through June, 1993. - - -File: autoconf.info, Node: Deuteronomy, Prev: Numbers, Up: History - -Deuteronomy -=========== - - A long wish list for major features had accumulated, and the effect -of several years of patching by various people had left some residual -cruft. In April 1994, while working for Cygnus Support, I began a major -revision of Autoconf. I added most of the features of the Cygnus -`configure' that Autoconf had lacked, largely by adapting the relevant -parts of Cygnus `configure' with the help of david zuhn and Ken -Raeburn. These features include support for using `config.sub', -`config.guess', `--host', and `--target'; making links to files; and -running `configure' scripts in subdirectories. Adding these features -enabled Ken to convert GNU `as', and Rob Savoye to convert DejaGNU, to -using Autoconf. - - I added more features in response to other peoples' requests. Many -people had asked for `configure' scripts to share the results of the -checks between runs, because (particularly when configuring a large -source tree, like Cygnus does) they were frustratingly slow. Mike -Haertel suggested adding site-specific initialization scripts. People -distributing software that had to unpack on MS-DOS asked for a way to -override the `.in' extension on the file names, which produced file -names like `config.h.in' containing two dots. Jim Avera did an -extensive examination of the problems with quoting in `AC_DEFINE' and -`AC_SUBST'; his insights led to significant improvements. Richard -Stallman asked that compiler output be sent to `config.log' instead of -`/dev/null', to help people debug the Emacs `configure' script. - - I made some other changes because of my dissatisfaction with the -quality of the program. I made the messages showing results of the -checks less ambiguous, always printing a result. I regularized the -names of the macros and cleaned up coding style inconsistencies. I -added some auxiliary utilities that I had developed to help convert -source code packages to use Autoconf. With the help of Franc,ois -Pinard, I made the macros not interrupt each others' messages. (That -feature revealed some performance bottlenecks in GNU `m4', which he -hastily corrected!) I reorganized the documentation around problems -people want to solve. And I began a testsuite, because experience had -shown that Autoconf has a pronounced tendency to regress when we change -it. - - Again, several alpha testers gave invaluable feedback, especially -Franc,ois Pinard, Jim Meyering, Karl Berry, Rob Savoye, Ken Raeburn, -and Mark Eichin. - - Finally, version 2.0 was ready. And there was much rejoicing. (And -I have free time again. I think. Yeah, right.) - diff --git a/util/autoconf/autoconf.info-5 b/util/autoconf/autoconf.info-5 deleted file mode 100644 index b18e2b3..0000000 --- a/util/autoconf/autoconf.info-5 +++ /dev/null @@ -1,607 +0,0 @@ -This is Info file autoconf.info, produced by Makeinfo-1.55 from the -input file ./autoconf.texi. - -START-INFO-DIR-ENTRY -* Autoconf: (autoconf). Create source code configuration scripts. -END-INFO-DIR-ENTRY - - This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an `m4' macro -package. - - Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Foundation. - - -File: autoconf.info, Node: Old Macro Names, Next: Environment Variable Index, Prev: History, Up: Top - -Old Macro Names -*************** - - In version 2 of Autoconf, most of the macros were renamed to use a -more uniform and descriptive naming scheme. Here are the old names of -the macros that were renamed, followed by the current names of those -macros. Although the old names are still accepted by the `autoconf' -program for backward compatibility, the old names are considered -obsolete. *Note Macro Names::, for a description of the new naming -scheme. - -`AC_ALLOCA' - `AC_FUNC_ALLOCA' - -`AC_ARG_ARRAY' - removed because of limited usefulness - -`AC_CHAR_UNSIGNED' - `AC_C_CHAR_UNSIGNED' - -`AC_CONST' - `AC_C_CONST' - -`AC_CROSS_CHECK' - `AC_C_CROSS' - -`AC_ERROR' - `AC_MSG_ERROR' - -`AC_FIND_X' - `AC_PATH_X' - -`AC_FIND_XTRA' - `AC_PATH_XTRA' - -`AC_FUNC_CHECK' - `AC_CHECK_FUNC' - -`AC_GCC_TRADITIONAL' - `AC_PROG_GCC_TRADITIONAL' - -`AC_GETGROUPS_T' - `AC_TYPE_GETGROUPS' - -`AC_GETLOADAVG' - `AC_FUNC_GETLOADAVG' - -`AC_HAVE_FUNCS' - `AC_CHECK_FUNCS' - -`AC_HAVE_HEADERS' - `AC_CHECK_HEADERS' - -`AC_HAVE_POUNDBANG' - `AC_SYS_INTERPRETER' (different calling convention) - -`AC_HEADER_CHECK' - `AC_CHECK_HEADER' - -`AC_HEADER_EGREP' - `AC_EGREP_HEADER' - -`AC_INLINE' - `AC_C_INLINE' - -`AC_LN_S' - `AC_PROG_LN_S' - -`AC_LONG_DOUBLE' - `AC_C_LONG_DOUBLE' - -`AC_LONG_FILE_NAMES' - `AC_SYS_LONG_FILE_NAMES' - -`AC_MAJOR_HEADER' - `AC_HEADER_MAJOR' - -`AC_MINUS_C_MINUS_O' - `AC_PROG_CC_C_O' - -`AC_MMAP' - `AC_FUNC_MMAP' - -`AC_MODE_T' - `AC_TYPE_MODE_T' - -`AC_OFF_T' - `AC_TYPE_OFF_T' - -`AC_PID_T' - `AC_TYPE_PID_T' - -`AC_PREFIX' - `AC_PREFIX_PROGRAM' - -`AC_PROGRAMS_CHECK' - `AC_CHECK_PROGS' - -`AC_PROGRAMS_PATH' - `AC_PATH_PROGS' - -`AC_PROGRAM_CHECK' - `AC_CHECK_PROG' - -`AC_PROGRAM_EGREP' - `AC_EGREP_CPP' - -`AC_PROGRAM_PATH' - `AC_PATH_PROG' - -`AC_REMOTE_TAPE' - removed because of limited usefulness - -`AC_RESTARTABLE_SYSCALLS' - `AC_SYS_RESTARTABLE_SYSCALLS' - -`AC_RETSIGTYPE' - `AC_TYPE_SIGNAL' - -`AC_RSH' - removed because of limited usefulness - -`AC_SETVBUF_REVERSED' - `AC_FUNC_SETVBUF_REVERSED' - -`AC_SET_MAKE' - `AC_PROG_MAKE_SET' - -`AC_SIZEOF_TYPE' - `AC_CHECK_SIZEOF' - -`AC_SIZE_T' - `AC_TYPE_SIZE_T' - -`AC_STAT_MACROS_BROKEN' - `AC_HEADER_STAT' - -`AC_STDC_HEADERS' - `AC_HEADER_STDC' - -`AC_STRCOLL' - `AC_FUNC_STRCOLL' - -`AC_ST_BLKSIZE' - `AC_STRUCT_ST_BLKSIZE' - -`AC_ST_BLOCKS' - `AC_STRUCT_ST_BLOCKS' - -`AC_ST_RDEV' - `AC_STRUCT_ST_RDEV' - -`AC_SYS_SIGLIST_DECLARED' - `AC_DECL_SYS_SIGLIST' - -`AC_TEST_CPP' - `AC_TRY_CPP' - -`AC_TEST_PROGRAM' - `AC_TRY_RUN' - -`AC_TIMEZONE' - `AC_STRUCT_TIMEZONE' - -`AC_TIME_WITH_SYS_TIME' - `AC_HEADER_TIME' - -`AC_UID_T' - `AC_TYPE_UID_T' - -`AC_UTIME_NULL' - `AC_FUNC_UTIME_NULL' - -`AC_VFORK' - `AC_FUNC_VFORK' - -`AC_VPRINTF' - `AC_FUNC_VPRINTF' - -`AC_WAIT3' - `AC_FUNC_WAIT3' - -`AC_WARN' - `AC_MSG_WARN' - -`AC_WORDS_BIGENDIAN' - `AC_C_BIGENDIAN' - -`AC_YYTEXT_POINTER' - `AC_DECL_YYTEXT' - - -File: autoconf.info, Node: Environment Variable Index, Next: Output Variable Index, Prev: Old Macro Names, Up: Top - -Environment Variable Index -************************** - - This is an alphabetical list of the environment variables that -Autoconf checks. - -* Menu: - -* AC_MACRODIR: Invoking autoupdate. -* AC_MACRODIR: Invoking autoscan. -* AC_MACRODIR: Invoking autoreconf. -* AC_MACRODIR: Invoking ifnames. -* AC_MACRODIR: Invoking autoheader. -* AC_MACRODIR: Invoking autoconf. -* CONFIG_FILES: Invoking config.status. -* CONFIG_HEADERS: Invoking config.status. -* CONFIG_SHELL: Invoking config.status. -* CONFIG_SITE: Site Defaults. -* CONFIG_STATUS: Invoking config.status. -* SIMPLE_BACKUP_SUFFIX: Invoking autoupdate. - - -File: autoconf.info, Node: Output Variable Index, Next: Preprocessor Symbol Index, Prev: Environment Variable Index, Up: Top - -Output Variable Index -********************* - - This is an alphabetical list of the variables that Autoconf can -substitute into files that it creates, typically one or more -`Makefile's. *Note Setting Output Variables::, for more information on -how this is done. - -* Menu: - -* ALLOCA: Particular Functions. -* AWK: Particular Programs. -* build: System Type Variables. -* build_alias: System Type Variables. -* build_cpu: System Type Variables. -* build_os: System Type Variables. -* build_vendor: System Type Variables. -* CC: Particular Programs. -* CC: UNIX Variants. -* CC: Particular Programs. -* CFLAGS: Preset Output Variables. -* CFLAGS: Particular Programs. -* configure_input: Preset Output Variables. -* CPP: Particular Programs. -* CPPFLAGS: Preset Output Variables. -* CXX: Particular Programs. -* CXXCPP: Particular Programs. -* CXXFLAGS: Preset Output Variables. -* CXXFLAGS: Particular Programs. -* DEFS: Preset Output Variables. -* exec_prefix: Preset Output Variables. -* host: System Type Variables. -* host_alias: System Type Variables. -* host_cpu: System Type Variables. -* host_os: System Type Variables. -* host_vendor: System Type Variables. -* INSTALL: Particular Programs. -* INSTALL_DATA: Particular Programs. -* INSTALL_PROGRAM: Particular Programs. -* KMEM_GROUP: Particular Functions. -* LDFLAGS: Preset Output Variables. -* LEX: Particular Programs. -* LEXLIB: Particular Programs. -* LEX_OUTPUT_ROOT: Particular Programs. -* LIBOBJS: Particular Functions. -* LIBOBJS: Particular Functions. -* LIBOBJS: Generic Functions. -* LIBOBJS: Structures. -* LIBS: UNIX Variants. -* LIBS: UNIX Variants. -* LIBS: Preset Output Variables. -* LN_S: Particular Programs. -* NEED_SETGID: Particular Functions. -* prefix: Preset Output Variables. -* program_transform_name: Transforming Names. -* RANLIB: Particular Programs. -* SET_MAKE: Output. -* srcdir: Preset Output Variables. -* subdirs: Subdirectories. -* target: System Type Variables. -* target_alias: System Type Variables. -* target_cpu: System Type Variables. -* target_os: System Type Variables. -* target_vendor: System Type Variables. -* top_srcdir: Preset Output Variables. -* X_CFLAGS: System Services. -* X_EXTRA_LIBS: System Services. -* X_LIBS: System Services. -* X_PRE_LIBS: System Services. -* YACC: Particular Programs. - - -File: autoconf.info, Node: Preprocessor Symbol Index, Next: Macro Index, Prev: Output Variable Index, Up: Top - -Preprocessor Symbol Index -************************* - - This is an alphabetical list of the C preprocessor symbols that the -Autoconf macros define. To work with Autoconf, C source code needs to -use these names in `#if' directives. - -* Menu: - -* CLOSEDIR_VOID: Particular Functions. -* const: Compiler Characteristics. -* C_ALLOCA: Particular Functions. -* DGUX: Particular Functions. -* DIRENT: Particular Headers. -* GETGROUPS_T: Particular Typedefs. -* GETLODAVG_PRIVILEGED: Particular Functions. -* gid_t: Particular Typedefs. -* HAVE_FUNCTION: Generic Functions. -* HAVE_HEADER: Generic Headers. -* HAVE_ALLOCA_H: Particular Functions. -* HAVE_CONFIG_H: Configuration Headers. -* HAVE_DIRENT_H: Particular Headers. -* HAVE_DOPRNT: Particular Functions. -* HAVE_GETMNTENT: Particular Functions. -* HAVE_LONG_DOUBLE: Compiler Characteristics. -* HAVE_LONG_FILE_NAMES: System Services. -* HAVE_MMAP: Particular Functions. -* HAVE_NDIR_H: Particular Headers. -* HAVE_RESTARTABLE_SYSCALLS: System Services. -* HAVE_STRCOLL: Particular Functions. -* HAVE_STRFTIME: Particular Functions. -* HAVE_ST_BLKSIZE: Structures. -* HAVE_ST_BLOCKS: Structures. -* HAVE_ST_RDEV: Structures. -* HAVE_SYS_DIR_H: Particular Headers. -* HAVE_SYS_NDIR_H: Particular Headers. -* HAVE_SYS_WAIT_H: Particular Headers. -* HAVE_TM_ZONE: Structures. -* HAVE_TZNAME: Structures. -* HAVE_UNISTD_H: Particular Headers. -* HAVE_UTIME_NULL: Particular Functions. -* HAVE_VFORK_H: Particular Functions. -* HAVE_VPRINTF: Particular Functions. -* HAVE_WAIT3: Particular Functions. -* inline: Compiler Characteristics. -* INT_16_BITS: Compiler Characteristics. -* LONG_64_BITS: Compiler Characteristics. -* MAJOR_IN_MKDEV: Particular Headers. -* MAJOR_IN_SYSMACROS: Particular Headers. -* mode_t: Particular Typedefs. -* NDIR: Particular Headers. -* NEED_MEMORY_H: Particular Headers. -* NEED_SETGID: Particular Functions. -* NLIST_NAME_UNION: Particular Functions. -* NLIST_STRUCT: Particular Functions. -* NO_MINUS_C_MINUS_O: Particular Programs. -* off_t: Particular Typedefs. -* pid_t: Particular Typedefs. -* RETSIGTYPE: Particular Typedefs. -* SETVBUF_REVERSED: Particular Functions. -* size_t: Particular Typedefs. -* STDC_HEADERS: Particular Headers. -* SVR4: Particular Functions. -* SYSDIR: Particular Headers. -* SYSNDIR: Particular Headers. -* SYS_SIGLIST_DECLARED: Particular Headers. -* TIME_WITH_SYS_TIME: Structures. -* TM_IN_SYS_TIME: Structures. -* uid_t: Particular Typedefs. -* UMAX: Particular Functions. -* UMAX4_3: Particular Functions. -* USG: Particular Headers. -* vfork: Particular Functions. -* VOID_CLOSEDIR: Particular Headers. -* WORDS_BIGENDIAN: Compiler Characteristics. -* YYTEXT_POINTER: Particular Programs. -* _ALL_SOURCE: UNIX Variants. -* _MINIX: UNIX Variants. -* _POSIX_1_SOURCE: UNIX Variants. -* _POSIX_SOURCE: UNIX Variants. -* _POSIX_SOURCE: UNIX Variants. -* _POSIX_VERSION: Particular Headers. -* __CHAR_UNSIGNED__: Compiler Characteristics. - - -File: autoconf.info, Node: Macro Index, Prev: Preprocessor Symbol Index, Up: Top - -Macro Index -*********** - - This is an alphabetical list of the Autoconf macros. To make the -list easier to use, the macros are listed without their preceding `AC_'. - -* Menu: - -* AIX: UNIX Variants. -* ALLOCA: Old Macro Names. -* ARG_ARRAY: Old Macro Names. -* ARG_ENABLE: Package Options. -* ARG_PROGRAM: Transforming Names. -* ARG_WITH: External Software. -* BEFORE: Suggested Ordering. -* CACHE_VAL: Caching Results. -* CANONICAL_HOST: Canonicalizing. -* CANONICAL_SYSTEM: Canonicalizing. -* CHAR_UNSIGNED: Old Macro Names. -* CHECKING: Printing Messages. -* CHECK_FUNC: Generic Functions. -* CHECK_FUNCS: Generic Functions. -* CHECK_HEADER: Generic Headers. -* CHECK_HEADERS: Generic Headers. -* CHECK_LIB: Libraries. -* CHECK_PROG: Generic Programs. -* CHECK_PROGS: Generic Programs. -* CHECK_SIZEOF: Compiler Characteristics. -* CHECK_TYPE: Generic Typedefs. -* COMPILE_CHECK: Examining Libraries. -* CONFIG_AUX_DIR: Input. -* CONFIG_HEADER: Configuration Headers. -* CONFIG_SUBDIRS: Subdirectories. -* CONST: Old Macro Names. -* CROSS_CHECK: Old Macro Names. -* C_BIGENDIAN: Compiler Characteristics. -* C_CHAR_UNSIGNED: Compiler Characteristics. -* C_CONST: Compiler Characteristics. -* C_CROSS: Test Programs. -* C_INLINE: Compiler Characteristics. -* C_LONG_DOUBLE: Compiler Characteristics. -* DECL_SYS_SIGLIST: Particular Headers. -* DECL_YYTEXT: Particular Programs. -* DEFINE: Defining Symbols. -* DEFINE_UNQUOTED: Defining Symbols. -* DEFUN: Macro Definitions. -* DIR_HEADER: Particular Headers. -* DYNIX_SEQ: UNIX Variants. -* EGREP_CPP: Examining Declarations. -* EGREP_HEADER: Examining Declarations. -* ENABLE: Package Options. -* ERROR: Old Macro Names. -* FIND_X: Old Macro Names. -* FIND_XTRA: Old Macro Names. -* FUNC_ALLOCA: Particular Functions. -* FUNC_CHECK: Old Macro Names. -* FUNC_CLOSEDIR_VOID: Particular Functions. -* FUNC_GETLOADAVG: Particular Functions. -* FUNC_GETMNTENT: Particular Functions. -* FUNC_MEMCMP: Particular Functions. -* FUNC_MMAP: Particular Functions. -* FUNC_SETVBUF_REVERSED: Particular Functions. -* FUNC_STRCOLL: Particular Functions. -* FUNC_STRFTIME: Particular Functions. -* FUNC_UTIME_NULL: Particular Functions. -* FUNC_VFORK: Particular Functions. -* FUNC_VPRINTF: Particular Functions. -* FUNC_WAIT3: Particular Functions. -* GCC_TRADITIONAL: Old Macro Names. -* GETGROUPS_T: Old Macro Names. -* GETLOADAVG: Old Macro Names. -* HAVE_FUNCS: Old Macro Names. -* HAVE_HEADERS: Old Macro Names. -* HAVE_LIBRARY: Libraries. -* HAVE_POUNDBANG: Old Macro Names. -* HEADER_CHECK: Old Macro Names. -* HEADER_DIRENT: Particular Headers. -* HEADER_EGREP: Old Macro Names. -* HEADER_MAJOR: Particular Headers. -* HEADER_STAT: Structures. -* HEADER_STDC: Particular Headers. -* HEADER_SYS_WAIT: Particular Headers. -* HEADER_TIME: Structures. -* INIT: Input. -* INLINE: Old Macro Names. -* INT_16_BITS: Compiler Characteristics. -* IRIX_SUN: UNIX Variants. -* ISC_POSIX: UNIX Variants. -* LANG_C: Language Choice. -* LANG_CPLUSPLUS: Language Choice. -* LANG_RESTORE: Language Choice. -* LANG_SAVE: Language Choice. -* LINK_FILES: Using System Type. -* LN_S: Old Macro Names. -* LONG_64_BITS: Compiler Characteristics. -* LONG_DOUBLE: Old Macro Names. -* LONG_FILE_NAMES: Old Macro Names. -* MAJOR_HEADER: Old Macro Names. -* MEMORY_H: Particular Headers. -* MINIX: UNIX Variants. -* MINUS_C_MINUS_O: Old Macro Names. -* MMAP: Old Macro Names. -* MODE_T: Old Macro Names. -* MSG_CHECKING: Printing Messages. -* MSG_ERROR: Printing Messages. -* MSG_RESULT: Printing Messages. -* MSG_WARN: Printing Messages. -* OBSOLETE: Obsolete Macros. -* OFF_T: Old Macro Names. -* OUTPUT: Output. -* PATH_PROG: Generic Programs. -* PATH_PROGS: Generic Programs. -* PATH_X: System Services. -* PATH_XTRA: System Services. -* PID_T: Old Macro Names. -* PREFIX: Old Macro Names. -* PREFIX_PROGRAM: Default Prefix. -* PREREQ: Versions. -* PROGRAMS_CHECK: Old Macro Names. -* PROGRAMS_PATH: Old Macro Names. -* PROGRAM_CHECK: Old Macro Names. -* PROGRAM_EGREP: Old Macro Names. -* PROGRAM_PATH: Old Macro Names. -* PROG_AWK: Particular Programs. -* PROG_CC: Particular Programs. -* PROG_CC_C_O: Particular Programs. -* PROG_CPP: Particular Programs. -* PROG_CXX: Particular Programs. -* PROG_CXXCPP: Particular Programs. -* PROG_GCC_TRADITIONAL: Particular Programs. -* PROG_INSTALL: Particular Programs. -* PROG_LEX: Particular Programs. -* PROG_LN_S: Particular Programs. -* PROG_MAKE_SET: Output. -* PROG_RANLIB: Particular Programs. -* PROG_YACC: Particular Programs. -* PROVIDE: Prerequisite Macros. -* REMOTE_TAPE: Old Macro Names. -* REPLACE_FUNCS: Generic Functions. -* REQUIRE: Prerequisite Macros. -* REQUIRE_CPP: Language Choice. -* RESTARTABLE_SYSCALLS: Old Macro Names. -* RETSIGTYPE: Old Macro Names. -* REVISION: Versions. -* RSH: Old Macro Names. -* SCO_INTL: UNIX Variants. -* SETVBUF_REVERSED: Old Macro Names. -* SET_MAKE: Old Macro Names. -* SIZEOF_TYPE: Old Macro Names. -* SIZE_T: Old Macro Names. -* STAT_MACROS_BROKEN: Structures. -* STAT_MACROS_BROKEN: Old Macro Names. -* STDC_HEADERS: Old Macro Names. -* STRCOLL: Old Macro Names. -* STRUCT_ST_BLKSIZE: Structures. -* STRUCT_ST_BLOCKS: Structures. -* STRUCT_ST_RDEV: Structures. -* STRUCT_TIMEZONE: Structures. -* STRUCT_TM: Structures. -* ST_BLKSIZE: Old Macro Names. -* ST_BLOCKS: Old Macro Names. -* ST_RDEV: Old Macro Names. -* SUBST: Setting Output Variables. -* SUBST_FILE: Setting Output Variables. -* SYS_INTERPRETER: System Services. -* SYS_LONG_FILE_NAMES: System Services. -* SYS_RESTARTABLE_SYSCALLS: System Services. -* SYS_SIGLIST_DECLARED: Old Macro Names. -* TEST_CPP: Old Macro Names. -* TEST_PROGRAM: Old Macro Names. -* TIMEZONE: Old Macro Names. -* TIME_WITH_SYS_TIME: Old Macro Names. -* TRY_COMPILE: Examining Syntax. -* TRY_CPP: Examining Declarations. -* TRY_LINK: Examining Libraries. -* TRY_RUN: Test Programs. -* TYPE_GETGROUPS: Particular Typedefs. -* TYPE_MODE_T: Particular Typedefs. -* TYPE_OFF_T: Particular Typedefs. -* TYPE_PID_T: Particular Typedefs. -* TYPE_SIGNAL: Particular Typedefs. -* TYPE_SIZE_T: Particular Typedefs. -* TYPE_UID_T: Particular Typedefs. -* UID_T: Old Macro Names. -* UNISTD_H: Particular Headers. -* USG: Particular Headers. -* UTIME_NULL: Old Macro Names. -* VERBOSE: Printing Messages. -* VFORK: Old Macro Names. -* VPRINTF: Old Macro Names. -* WAIT3: Old Macro Names. -* WARN: Old Macro Names. -* WITH: External Software. -* WORDS_BIGENDIAN: Old Macro Names. -* XENIX_DIR: UNIX Variants. -* YYTEXT_POINTER: Old Macro Names. - - diff --git a/util/autoconf/autoconf.m4 b/util/autoconf/autoconf.m4 deleted file mode 100644 index 2b17435..0000000 --- a/util/autoconf/autoconf.m4 +++ /dev/null @@ -1,27 +0,0 @@ -dnl Driver that loads the Autoconf macro files. -dnl Requires GNU m4. -dnl This file is part of Autoconf. -dnl Copyright (C) 1994 Free Software Foundation, Inc. -dnl -dnl This program is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 2, or (at your option) -dnl any later version. -dnl -dnl This program is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this program; if not, write to the Free Software -dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -dnl -dnl Written by David MacKenzie. -dnl -include(acgeneral.m4)dnl -builtin(include, acspecific.m4)dnl -builtin(include, acoldnames.m4)dnl -dnl Do not sinclude acsite.m4 here, because it may not be installed -dnl yet when Autoconf is frozen. -dnl Do not sinclude ./aclocal.m4 here, to prevent it from being frozen. diff --git a/util/autoconf/autoconf.sh b/util/autoconf/autoconf.sh deleted file mode 100755 index 5ae95c7..0000000 --- a/util/autoconf/autoconf.sh +++ /dev/null @@ -1,152 +0,0 @@ -#!/bin/sh -# autoconf -- create `configure' using m4 macros -# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# If given no args, create `configure' from template file `configure.in'. -# With one arg, create a configure script on standard output from -# the given template file. - -usage="\ -Usage: autoconf [-h] [--help] [-m dir] [--macrodir=dir] - [-l dir] [--localdir=dir] [--version] [template-file]" - -# NLS nuisances. -# Only set `LANG' and `LC_ALL' to "C" if already set. -# These must not be set unconditionally because not all systems understand -# e.g. LANG=C (notably SCO). -if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi -if test "${LANG+set}" = set; then LANG=C; export LANG; fi - -test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@ -test -z "${M4}" && M4=@M4@ -case "${M4}" in -/*) # Handle the case that m4 has moved since we were configured. - # It may have been found originally in a build directory. - test -f "${M4}" || M4=m4 ;; -esac - -tmpout=/tmp/acout.$$ -localdir= -show_version=no - -while test $# -gt 0 ; do - case "${1}" in - -h | --help | --h* ) - echo "${usage}" 1>&2; exit 0 ;; - --localdir=* | --l*=* ) - localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -l | --localdir | --l*) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - localdir="${1}" - shift ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m* ) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - AC_MACRODIR="${1}" - shift ;; - --version | --v* ) - show_version=yes; shift ;; - -- ) # Stop option processing - shift; break ;; - - ) # Use stdin as input. - break ;; - -* ) - echo "${usage}" 1>&2; exit 1 ;; - * ) - break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -case $# in - 0) infile=configure.in ;; - 1) infile="$1" ;; - *) echo "$usage" >&2; exit 1 ;; -esac - -trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15 - -tmpin=/tmp/acin.$$ # Always set this, to avoid bogus errors from some rm's. -if test z$infile = z-; then - infile=$tmpin - cat > $infile -elif test ! -r "$infile"; then - echo "autoconf: ${infile}: No such file or directory" >&2 - exit 1 -fi - -if test -n "$localdir"; then - use_localdir="-I$localdir -DAC_LOCALDIR=$localdir" -else - use_localdir= -fi - -# Use the frozen version of Autoconf if available. -r= f= -# Some non-GNU m4's don't reject the --help option, so give them /dev/null. -case `$M4 --help < /dev/null 2>&1` in -*reload-state*) test -r $AC_MACRODIR/autoconf.m4f && { r=--reload f=f; } ;; -*traditional*) ;; -*) echo Autoconf requires GNU m4 1.1 or later >&2; rm -f $tmpin; exit 1 ;; -esac - -$M4 -I$AC_MACRODIR $use_localdir $r autoconf.m4$f $infile > $tmpout || - { rm -f $tmpin $tmpout; exit 2; } - -# You could add your own prefixes to pattern if you wanted to check for -# them too, e.g. pattern="AC_\|ILT_", except that UNIX sed doesn't do -# alternation. -pattern="AC_" - -status=0 -if grep "${pattern}" $tmpout > /dev/null 2>&1; then - echo "autoconf: Undefined macros:" >&2 - grep "${pattern}" $tmpout | sed "s/.*\(${pattern}[_A-Z0-9]*\).*/\1/" | - while read name; do - grep -n $name $infile /dev/null - done | sort -u >&2 - status=1 -fi - -if test $# -eq 0; then - exec 4> configure; chmod +x configure -else - exec 4>&1 -fi - -# Put the real line numbers into configure to make config.log more helpful. -awk ' -/__oline__/ { printf "%d:", NR + 1 } - { print } -' $tmpout | sed ' -/__oline__/s/^\([0-9][0-9]*\):\(.*\)__oline__\(.*\)$/\2\1\3/ -' >&4 - -rm -f $tmpout - -exit $status diff --git a/util/autoconf/autoconf.texi b/util/autoconf/autoconf.texi deleted file mode 100644 index 3ec9655..0000000 --- a/util/autoconf/autoconf.texi +++ /dev/null @@ -1,5125 +0,0 @@ -\input texinfo @c -*-texinfo-*- -@c %**start of header -@setfilename autoconf.info -@settitle Autoconf -@c For double-sided printing, uncomment: -@c @setchapternewpage odd -@c %**end of header - -@set EDITION 2.1 -@set VERSION 2.1 -@set UPDATED November 1994 - -@iftex -@finalout -@end iftex - -@ifinfo -@format -START-INFO-DIR-ENTRY -* Autoconf: (autoconf). Create source code configuration scripts. -END-INFO-DIR-ENTRY -@end format - -This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an @code{m4} macro -package. - -Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - -Permission is granted to make and distribute verbatim copies of -this manual provided the copyright notice and this permission notice -are preserved on all copies. - -@ignore -Permission is granted to process this file through TeX and print the -results, provided the printed document carries copying permission -notice identical to this one except for the removal of this paragraph -(this paragraph not being relevant to the printed manual). - -@end ignore -Permission is granted to copy and distribute modified versions of this -manual under the conditions for verbatim copying, provided that the entire -resulting derived work is distributed under the terms of a permission -notice identical to this one. - -Permission is granted to copy and distribute translations of this manual -into another language, under the above conditions for modified versions, -except that this permission notice may be stated in a translation approved -by the Foundation. -@end ifinfo - -@titlepage -@title Autoconf -@subtitle Creating Automatic Configuration Scripts -@subtitle Edition @value{EDITION}, for Autoconf version @value{VERSION} -@subtitle @value{UPDATED} -@author by David MacKenzie -@c I think I've rewritten all of Noah and Roland's contributions by now. - -@page -@vskip 0pt plus 1filll -Copyright @copyright{} 1992, 1993, 1994 Free Software Foundation, Inc. - -Permission is granted to make and distribute verbatim copies of -this manual provided the copyright notice and this permission notice -are preserved on all copies. - -Permission is granted to copy and distribute modified versions of this -manual under the conditions for verbatim copying, provided that the entire -resulting derived work is distributed under the terms of a permission -notice identical to this one. - -Permission is granted to copy and distribute translations of this manual -into another language, under the above conditions for modified versions, -except that this permission notice may be stated in a translation approved -by the Foundation. -@end titlepage - -@c Define an environment variable index. -@defcodeindex ev -@c Define an output variable index. -@defcodeindex ov -@c Define a CPP variable index. -@defcodeindex cv -@c Define a macro index that @@defmac doesn't write to. -@defcodeindex ma - -@node Top, Introduction, , (dir) -@comment node-name, next, previous, up - -@ifinfo -This file documents the GNU Autoconf package for creating scripts to -configure source code packages using templates and an @code{m4} macro -package. This is edition @value{EDITION}, for Autoconf version @value{VERSION}. - -@end ifinfo - -@c The master menu, created with texinfo-master-menu, goes here. - -@menu -* Introduction:: Autoconf's purpose, strengths, and weaknesses. -* Making configure Scripts:: How to organize and produce Autoconf scripts. -* Setup:: Initialization and output. -* Existing Tests:: Macros that check for particular features. -* Writing Tests:: How to write new feature checks. -* Results:: What to do with results from feature checks. -* Writing Macros:: Adding new macros to Autoconf. -* Manual Configuration:: Selecting features that can't be guessed. -* Site Configuration:: Local defaults for @code{configure}. -* Invoking configure:: How to use the Autoconf output. -* Invoking config.status:: Recreating a configuration. -* Questions:: Questions about Autoconf, with answers. -* Upgrading:: Tips for upgrading from version 1. -* History:: History of Autoconf. -* Old Macro Names:: Backward compatibility macros. -* Environment Variable Index:: Index of environment variables used. -* Output Variable Index:: Index of variables set in output files. -* Preprocessor Symbol Index:: Index of C preprocessor symbols defined. -* Macro Index:: Index of Autoconf macros. - - --- The Detailed Node Listing --- - -Making @code{configure} Scripts - -* Writing configure.in:: What to put in an Autoconf input file. -* Invoking autoscan:: Semi-automatic @file{configure.in} writing. -* Invoking ifnames:: Listing the conditionals in source code. -* Invoking autoconf:: How to create configuration scripts. -* Invoking autoreconf:: Remaking multiple @code{configure} scripts. - -Initialization and Output Files - -* Input:: Where Autoconf should find files. -* Output:: Creating output files. -* Makefile Substitutions:: Using output variables in @file{Makefile}s. -* Configuration Headers:: Creating a configuration header file. -* Subdirectories:: Configuring independent packages together. -* Default Prefix:: Changing the default installation prefix. -* Versions:: Version numbers in @code{configure}. - -Substitutions in Makefiles - -* Preset Output Variables:: Output variables that are always set. -* Build Directories:: Compiling in a different directory. -* Automatic Remaking:: Makefile rules for configuring. - -Configuration Header Files - -* Header Templates:: Input for the configuration headers. -* Invoking autoheader:: How to create configuration templates. - -Existing Tests - -* Alternative Programs:: Selecting between alternative programs. -* Libraries:: Library archives that might be missing. -* Library Functions:: C library functions that might be missing. -* Header Files:: Header files that might be missing. -* Structures:: Structures or members that might be missing. -* Typedefs:: @code{typedef}s that might be missing. -* Compiler Characteristics:: C compiler or machine architecture features. -* System Services:: Operating system services. -* UNIX Variants:: Special kludges for specific UNIX variants. - -Alternative Programs - -* Particular Programs:: Special handling to find certain programs. -* Generic Programs:: How to find other programs. - -Library Functions - -* Particular Functions:: Special handling to find certain functions. -* Generic Functions:: How to find other functions. - -Header Files - -* Particular Headers:: Special handling to find certain headers. -* Generic Headers:: How to find other headers. - -Typedefs - -* Particular Typedefs:: Special handling to find certain types. -* Generic Typedefs:: How to find other types. - -Writing Tests - -* Examining Declarations:: Detecting header files and declarations. -* Examining Syntax:: Detecting language syntax features. -* Examining Libraries:: Detecting functions and global variables. -* Run Time:: Testing for run-time features. -* Portable Shell:: Shell script portability pitfalls. -* Testing Values and Files:: Checking strings and files. -* Multiple Cases:: Tests for several possible values. -* Language Choice:: Selecting which language to use for testing. - -Checking Run Time Behavior - -* Test Programs:: Running test programs. -* Guidelines:: General rules for writing test programs. -* Test Functions:: Avoiding pitfalls in test programs. - -Results of Tests - -* Defining Symbols:: Defining C preprocessor symbols. -* Setting Output Variables:: Replacing variables in output files. -* Caching Results:: Speeding up subsequent @code{configure} runs. -* Printing Messages:: Notifying users of progress or problems. - -Caching Results - -* Cache Variable Names:: Shell variables used in caches. -* Cache Files:: Files @code{configure} uses for caching. - -Writing Macros - -* Macro Definitions:: Basic format of an Autoconf macro. -* Macro Names:: What to call your new macros. -* Quoting:: Protecting macros from unwanted expansion. -* Dependencies Between Macros:: What to do when macros depend on other macros. - -Dependencies Between Macros - -* Prerequisite Macros:: Ensuring required information. -* Suggested Ordering:: Warning about possible ordering problems. -* Obsolete Macros:: Warning about old ways of doing things. - -Manual Configuration - -* Specifying Names:: Specifying the system type. -* Canonicalizing:: Getting the canonical system type. -* System Type Variables:: Variables containing the system type. -* Using System Type:: What to do with the system type. - -Site Configuration - -* External Software:: Working with other optional software. -* Package Options:: Selecting optional features. -* Site Details:: Configuring site details. -* Transforming Names:: Changing program names when installing. -* Site Defaults:: Giving @code{configure} local defaults. - -Transforming Program Names When Installing - -* Transformation Options:: @code{configure} options to transforme names. -* Transformation Examples:: Sample uses of transforming names. -* Transformation Rules:: @file{Makefile} uses of transforming names. - -Running @code{configure} Scripts - -* Basic Installation:: Instructions for typical cases. -* Compilers and Options:: Selecting compilers and optimization. -* Build Directory:: Configuring in a different directory. -* Installation Names:: Installing in different directories. -* Optional Features:: Selecting optional features. -* System Type:: Specifying the system type. -* Sharing Defaults:: Setting site-wide defaults for @code{configure}. -* Operation Controls:: Changing how @code{configure} runs. - -Questions About Autoconf - -* Distributing:: Distributing @code{configure} scripts. -* Why GNU m4:: Why not use the standard @code{m4}? -* Bootstrapping:: Autoconf and GNU @code{m4} require each other? -* Why Not Imake:: Why GNU uses @code{configure} instead of Imake. - -Upgrading From Version 1 - -* Changed File Names:: Files you might rename. -* Changed Makefiles:: New things to put in @file{Makefile.in}. -* Changed Macros:: Macro calls you might replace. -* Invoking autoupdate:: Replacing old macro names in @code{configure.in}. -* Changed Results:: Changes in how to check test results. -* Changed Macro Writing:: Better ways to write your own macros. - -History of Autoconf - -* Genesis:: Prehistory and naming of @code{configure}. -* Exodus:: The plagues of @code{m4} and Perl. -* Leviticus:: The priestly code of portability arrives. -* Numbers:: Growth and contributors. -* Deuteronomy:: Approaching the promises of easy configuration. -@end menu - -@node Introduction, Making configure Scripts, Top, Top -@chapter Introduction - -@display -A physicist, an engineer, and a computer scientist were -discussing the nature of God. Surely a Physicist, said the -physicist, because early in the Creation, God made Light; and you -know, Maxwell's equations, the dual nature of electro-magnetic -waves, the relativist consequences@dots{} An Engineer!, said the -engineer, because before making Light, God split the Chaos into -Land and Water; it takes a hell of an engineer to handle that big -amount of mud, and orderly separation of solids from -liquids@dots{} The computer scientist shouted: And the Chaos, -where do you think it was coming from, hmm? - ----Anonymous -@end display -@c (via Franc,ois Pinard) - -Autoconf is a tool for producing shell scripts that automatically -configure software source code packages to adapt to many kinds of -UNIX-like systems. The configuration scripts produced by Autoconf are -independent of Autoconf when they are run, so their users do not need to -have Autoconf. - -The configuration scripts produced by Autoconf require no manual user -intervention when run; they do not normally even need an argument -specifying the system type. Instead, they test for the presence of each -feature that the software package they are for might need individually. -(Before each check, they print a one-line message stating what they are -checking for, so the user doesn't get too bored while waiting for the -script to finish.) As a result, they deal well with systems that are -hybrids or customized from the more common UNIX variants. There is no -need to maintain files that list the features supported by each release -of each variant of UNIX. - -For each software package that Autoconf is used with, it creates a -configuration script from a template file that lists the -system features that the package needs or can use. After the shell code to -recognize and respond to a system feature has been written, -Autoconf allows it to be shared by many software packages that can -use (or need) that feature. If it later turns out that the shell code -needs adjustment for some reason, it needs to be changed in only one -place; all of the configuration scripts can be regenerated -automatically to take advantage of the updated code. - -The Metaconfig package is similar in purpose to Autoconf, but -the scripts it produces require manual user intervention, which is quite -inconvenient when configuring large source trees. Unlike Metaconfig -scripts, Autoconf scripts can support cross-compiling, if some care is -taken in writing them. - -There are several jobs related to making portable software packages -that Autoconf currently does not do. Among these are automatically -creating @file{Makefile} files with all of the standard targets, and -supplying replacements for standard library functions and header files on -systems that lack them. Work is in progress to add those features in -the future. - -Autoconf imposes some restrictions on the names of macros used with -@code{#ifdef} in C programs (@pxref{Preprocessor Symbol Index}). - -Autoconf requires GNU @code{m4} in order to generate the scripts. It -uses features that some UNIX versions of @code{m4} do not have. It also -overflows internal limits of some versions of @code{m4}, including GNU -@code{m4} 1.0. You must use version 1.1 or later of GNU @code{m4}. -Using version 1.3 or later will be much faster than 1.1 or 1.2. - -@xref{Upgrading}, for information about upgrading from version 1. -@xref{History}, for the story of Autoconf's development. -@xref{Questions}, for answers to some common questions about Autoconf. - -Mail suggestions and bug reports for Autoconf to -@code{bug-gnu-utils@@prep.ai.mit.edu}. Please include the Autoconf version -number, which you can get by running @samp{autoconf --version}. - -@node Making configure Scripts, Setup, Introduction, Top -@chapter Making @code{configure} Scripts - -The configuration scripts that Autoconf produces are by convention -called @code{configure}. When run, @code{configure} creates several -files, replacing configuration parameters in them with appropriate -values. The files that @code{configure} creates are: - -@itemize @bullet -@item -one or more @file{Makefile} files, one in each subdirectory of the -package (@pxref{Makefile Substitutions}); - -@item -optionally, a C header file, the name of which is configurable, -containing @code{#define} directives (@pxref{Configuration Headers}); - -@item -a shell script called @file{config.status} that, when run, will recreate -the files listed above (@pxref{Invoking config.status}); - -@item -a shell script called @file{config.cache} that saves the results of -running many of the tests (@pxref{Cache Files}); - -@item -a file called @file{config.log} containing any messages produced by -compilers, to help debugging if @code{configure} makes a mistake. -@end itemize - -To create a @code{configure} script with Autoconf, you need to write an -Autoconf input file @file{configure.in} and run @code{autoconf} on it. -If you write your own feature tests to supplement those that come with -Autoconf, you might also write files called @file{aclocal.m4} and -@file{acsite.m4}. If you use a C header file to contain @code{#define} -directives, you might also write @file{acconfig.h}, and you will -distribute the Autoconf-generated file @file{config.h.in} with the -package. - -Here is a diagram showing how the files that can be used in -configuration are produced. Programs that are executed are suffixed by -@samp{*}. Optional files are enclosed in square brackets (@samp{[]}). -@code{autoconf} and @code{autoheader} also read the installed Autoconf -macro files (by reading @file{autoconf.m4}). - -@noindent -Files used in preparing a software package for distribution: -@example -@group -your source files --> [autoscan*] --> [configure.scan] --> configure.in - -configure.in --. .------> autoconf* -----> configure - +---+ -[aclocal.m4] --+ `---. -[acsite.m4] ---' | - +--> [autoheader*] -> [config.h.in] -[acconfig.h] ----. | - +-----' -[config.h.top] --+ -[config.h.bot] --' - -Makefile.in -------------------------------> Makefile.in -@end group -@end example - -@noindent -Files used in configuring a software package: -@example -@group - .-------------> config.cache -configure* ------------+-------------> config.log - | -[config.h.in] -. v .-> [config.h] -. - +--> config.status* -+ +--> make* -Makefile.in ---' `-> Makefile ---' -@end group -@end example - -@menu -* Writing configure.in:: What to put in an Autoconf input file. -* Invoking autoscan:: Semi-automatic @file{configure.in} writing. -* Invoking ifnames:: Listing the conditionals in source code. -* Invoking autoconf:: How to create configuration scripts. -* Invoking autoreconf:: Remaking multiple @code{configure} scripts. -@end menu - -@node Writing configure.in, Invoking autoscan, , Making configure Scripts -@section Writing @file{configure.in} - -To produce a @code{configure} script for a software package, create a -file called @file{configure.in} that contains invocations of the -Autoconf macros that test the system features your package needs or can -use. Autoconf macros already exist to check for many features; see -@ref{Existing Tests}, for their descriptions. For most other -features, you can use Autoconf template macros to produce custom checks; -see @ref{Writing Tests}, for information about them. For especially -tricky or specialized features, @file{configure.in} might need to -contain some hand-crafted shell commands. The @code{autoscan} -program can give you a good start in writing @file{configure.in} -(@pxref{Invoking autoscan}, for more information). - -The order in which @file{configure.in} calls the Autoconf macros -is not important, with a few exceptions. Every -@file{configure.in} must contain a call to @code{AC_INIT} before -the checks, and a call to @code{AC_OUTPUT} at the end -(@pxref{Output}). Additionally, some macros rely on other macros -having been called first, because they check previously set -values of some variables to decide what to do. These macros are -noted in the individual descriptions (@pxref{Existing Tests}), -and they also warn you when creating @code{configure} if they are -called out of order. - -To encourage consistency, here is a suggested order for calling the -Autoconf macros. Generally speaking, the things near the end of this -list could depend on things earlier in it. For example, library -functions could be affected by typedefs and libraries. - -@display -@group -@code{AC_INIT(@var{file})} -checks for programs -checks for libraries -checks for header files -checks for typedefs -checks for structures -checks for compiler characteristics -checks for library functions -checks for system services -@code{AC_OUTPUT(@r{[}@var{file@dots{}}@r{]})} -@end group -@end display - -It is best to put each macro call on its own line in -@file{configure.in}. Most of the macros don't add extra newlines; they -rely on the newline after the macro call to terminate the commands. -This approach makes the generated @code{configure} script a little -easier to read by not inserting lots of blank lines. It is generally -safe to set shell variables on the same line as a macro call, because -the shell allows assignments without intervening newlines. - -When calling macros that take arguments, there must not be any blank -space between the macro name and the open parenthesis. Arguments can be -more than one line long if they are enclosed within the @code{m4} quote -characters @samp{[} and @samp{]}. If you have a long line such as a -list of file names, you can generally use a backslash at the end of a -line to continue it logically on the next line (this is implemented by -the shell, not by anything special that Autoconf does). - -Some macros handle two cases: what to do if the given condition is met, -and what to do if the condition is not met. In some places you might -want to do something if a condition is true but do nothing if it's -false, or vice versa. To omit the true case, pass an empty value for -the @var{action-if-found} argument to the macro. To omit the false -case, omit the @var{action-if-not-found} argument to the macro, -including the comma before it. - -You can include comments in @file{configure.in} files by starting them -with the @code{m4} builtin macro @code{dnl}, which discards text up -through the next newline. These comments do not appear in the generated -@code{configure} scripts. For example, it is helpful to begin -@file{configure.in} files with a line like this: - -@example -dnl Process this file with autoconf to produce a configure script. -@end example - -@node Invoking autoscan, Invoking ifnames, Writing configure.in, Making configure Scripts -@section Using @code{autoscan} to Create @file{configure.in} - -The @code{autoscan} program can help you create a @file{configure.in} -file for a software package. @code{autoscan} examines source files in -the directory tree rooted at a directory given as a command line -argument, or the current directory if none is given. It searches the -source files for common portability problems and creates a file -@file{configure.scan} which is a preliminary @file{configure.in} for -that package. - -You should manually examine @file{configure.scan} before renaming it to -@file{configure.in}; it will probably need some adjustments. -Occasionally @code{autoscan} outputs a macro in the wrong order relative -to another macro, so that @code{autoconf} produces a warning; you need -to move such macros manually. Also, if you want the package to use a -configuration header file, you must add a call to -@code{AC_CONFIG_HEADER} (@pxref{Configuration Headers}). You might also -have to change or add some @code{#if} directives to your program in -order to make it work with Autoconf (@pxref{Invoking ifnames}, for -information about a program that can help with that job). - -@code{autoscan} uses several data files, which are installed along with the -distributed Autoconf macro files, to determine which macros to output -when it finds particular symbols in a package's source files. These -files all have the same format. Each line consists of a symbol, -whitespace, and the Autoconf macro to output if that symbol is -encountered. Lines starting with @samp{#} are comments. - -@code{autoscan} is only installed if you already have Perl installed. -@code{autoscan} accepts the following options: - -@table @code -@item --help -Print a summary of the command line options and exit. - -@item --macrodir=@var{dir} -@evindex AC_MACRODIR -Look for the data files in directory @var{dir} instead of the default -installation directory. You can also set the @code{AC_MACRODIR} -environment variable to a directory; this option overrides the -environment variable. - -@item --verbose -Print the names of the files it examines and the potentially interesting -symbols it finds in them. This output can be voluminous. - -@item --version -Print the version number of Autoconf and exit. -@end table - -@node Invoking ifnames, Invoking autoconf, Invoking autoscan, Making configure Scripts -@section Using @code{ifnames} to List Conditionals - -@code{ifnames} can help when writing a @file{configure.in} for a -software package. It prints the identifiers that the package already -uses in C preprocessor conditionals. If a package has already been set -up to have some portability, this program can help you figure out what -its @code{configure} needs to check for. It may help fill in some gaps -in a @file{configure.in} generated by @code{autoscan} (@pxref{Invoking -autoscan}). - -@code{ifnames} scans all of the C source files named on the command line -(or the standard input, if none are given) and writes to the standard -output a sorted list of all the identifiers that appear in those files -in @code{#if}, @code{#elif}, @code{#ifdef}, or @code{#ifndef} -directives. It prints each identifier on a line, followed by a -space-separated list of the files in which that identifier occurs. - -@noindent -@code{ifnames} accepts the following options: - -@table @code -@item --help -@itemx -h -Print a summary of the command line options and exit. - -@item --macrodir=@var{dir} -@itemx -m @var{dir} -@evindex AC_MACRODIR -Look for the Autoconf macro files in directory @var{dir} instead of the -default installation directory. Only used to get the version number. -You can also set the @code{AC_MACRODIR} -environment variable to a directory; this option overrides the -environment variable. - -@item --version -Print the version number of Autoconf and exit. -@end table - -@node Invoking autoconf, Invoking autoreconf, Invoking ifnames, Making configure Scripts -@section Using @code{autoconf} to Create @code{configure} - -To create @code{configure} from @file{configure.in}, run the -@code{autoconf} program with no arguments. @code{autoconf} processes -@file{configure.in} with the @code{m4} macro processor, using the -Autoconf macros. If you give @code{autoconf} an argument, it reads that -file instead of @file{configure.in} and writes the configuration script -to the standard output instead of to @code{configure}. If you give -@code{autoconf} the argument @samp{-}, it reads the standard input -instead of @file{configure.in} and writes the configuration script on -the standard output. - -The Autoconf macros are defined in several files. Some of the files are -distributed with Autoconf; @code{autoconf} reads them first. Then it -looks for the optional file @file{acsite.m4} in the directory that -contains the distributed Autoconf macro files, and for the optional file -@file{aclocal.m4} in the current directory. Those files can contain -your site's or the package's own Autoconf macro definitions -(@pxref{Writing Macros}, for more information). If a macro is defined -in more than one of the files that @code{autoconf} reads, the last -definition it reads overrides the earlier ones. - -@code{autoconf} accepts the following options: - -@table @code -@item --help -@itemx -h -Print a summary of the command line options and exit. - -@item --localdir=@var{dir} -@itemx -l @var{dir} -Look for the package file @file{aclocal.m4} in directory @var{dir} -instead of in the current directory. - -@item --macrodir=@var{dir} -@itemx -m @var{dir} -@evindex AC_MACRODIR -Look for the installed macro files in directory @var{dir}. You can also -set the @code{AC_MACRODIR} environment variable to a directory; this -option overrides the environment variable. - -@item --version -Print the version number of Autoconf and exit. -@end table - -@node Invoking autoreconf, , Invoking autoconf, Making configure Scripts -@section Using @code{autoreconf} to Update @code{configure} Scripts - -If you have a lot of Autoconf-generated @code{configure} scripts, the -@code{autoreconf} program can save you some work. It runs -@code{autoconf} (and @code{autoheader}, where appropriate) repeatedly to -remake the Autoconf @code{configure} scripts and configuration header -templates in the directory tree rooted at the current directory. By -default, it only remakes those files that are older than their -@file{configure.in} or (if present) @file{aclocal.m4}. Since -@code{autoheader} does not change the timestamp of its output file if -the file wouldn't be changing, this is not necessarily the minimum -amount of work. If you install a new version of Autoconf, you can make -@code{autoreconf} remake @emph{all} of the files by giving it the -@samp{--force} option. - -If you give @code{autoreconf} the @samp{--macrodir=@var{dir}} or -@samp{--localdir=@var{dir}} options, it passes them down to -@code{autoconf} and @code{autoheader} (with relative paths adjusted -properly). - -@xref{Automatic Remaking}, for @file{Makefile} rules to automatically -remake @code{configure} scripts when their source files change. That -method handles the timestamps of configuration header templates -properly, but does not pass @samp{--macrodir=@var{dir}} or -@samp{--localdir=@var{dir}}. - -@noindent -@code{autoreconf} accepts the following options: - -@table @code -@item --help -@itemx -h -Print a summary of the command line options and exit. - -@item --force -@itemx -f -Remake even @file{configure} scripts and configuration headers that are -newer than their input files (@file{configure.in} and, if present, -@file{aclocal.m4}). - -@item --localdir=@var{dir} -@itemx -l @var{dir} -Look for the package files @file{aclocal.m4} and @file{acconfig.h} (but -not @file{@var{file}.top} and @file{@var{file}.bot}) in directory -@var{dir} instead of in the directory containing each @file{configure.in}. - -@item --macrodir=@var{dir} -@itemx -m @var{dir} -@evindex AC_MACRODIR -Look for the Autoconf macro files in directory @var{dir} instead of the -default installation directory. -You can also set the @code{AC_MACRODIR} -environment variable to a directory; this option overrides the -environment variable. - -@item --verbose -Print the name of each directory where @code{autoreconf} runs -@code{autoconf} (and @code{autoheader}, if appropriate). - -@item --version -Print the version number of Autoconf and exit. -@end table - -@node Setup, Existing Tests, Making configure Scripts, Top -@chapter Initialization and Output Files - -Autoconf-generated @code{configure} scripts need some information about -how to initialize, such as how to find the package's source files; and -about the output files to produce. The following sections describe -initialization and creating output files. - -@menu -* Input:: Where Autoconf should find files. -* Output:: Creating output files. -* Makefile Substitutions:: Using output variables in @file{Makefile}s. -* Configuration Headers:: Creating a configuration header file. -* Subdirectories:: Configuring independent packages together. -* Default Prefix:: Changing the default installation prefix. -* Versions:: Version numbers in @code{configure}. -@end menu - -@node Input, Output, , Setup -@section Finding @code{configure} Input - -Every @code{configure} script must call @code{AC_INIT} before doing -anything else. The only other required macro is @code{AC_OUTPUT} -(@pxref{Output}). - -@defmac AC_INIT (@var{unique-file-in-source-dir}) -@maindex INIT -Process any command-line arguments and find the source code directory. -@var{unique-file-in-source-dir} is some file that is in the package's -source directory; @code{configure} checks for this file's existence to -make sure that the directory that it is told contains the source code in -fact does (@pxref{Invoking configure}, for more information). -@end defmac - -Packages that do manual configuration or use the @code{install} program -might need to tell @code{configure} where to find some other shell -scripts by calling @code{AC_CONFIG_AUX_DIR}, though the default places -it looks are correct for most cases. - -@defmac AC_CONFIG_AUX_DIR(@var{dir}) -@maindex CONFIG_AUX_DIR -Use the @file{install-sh}, @file{config.sub}, @file{config.guess}, and -Cygnus @code{configure} scripts that are in directory @var{dir}. These -are auxiliary files used in configuration. @var{dir} can be either -absolute or relative to @file{@var{srcdir}}. The default is -@file{@var{srcdir}} or @file{@var{srcdir}/..} or -@file{@var{srcdir}/../..}, whichever is the first that contains -@file{install-sh}. The other files are not checked for, so that using -@code{AC_PROG_INSTALL} does not automatically require distributing the -other auxiliary files. It checks for @file{install.sh} also, but that -name is obsolete because some @code{make} programs have a rule that -creates @file{install} from it if there is no @file{Makefile}. -@end defmac - -@node Output, Makefile Substitutions, Input, Setup -@section Creating Output Files - -Every Autoconf-generated @code{configure} script must finish by calling -@code{AC_OUTPUT}. It is the macro that creates the @file{Makefile}s and -optional other files resulting from configuration. The only other -required macro is @code{AC_INIT} (@pxref{Input}). - -@defmac AC_OUTPUT (@r{[}@var{file}@dots{}@r{] [,}@var{extra-cmds}@r{] [,}@var{init-cmds}@r{]}) -@maindex OUTPUT -Create output files. The @var{file}@dots{} argument is a -whitespace-separated list of output files; it may be empty. This macro -creates each file @file{@var{file}} by copying an input file (by default -named @file{@var{file}.in}), substituting the output variable values. -@xref{Makefile Substitutions}, for more information on using output variables. -@xref{Setting Output Variables}, for more information on creating them. This -macro creates the directory that the file is in if it doesn't exist (but -not the parents of that directory). Usually, @file{Makefile}s are -created this way, but other files, such as @file{.gdbinit}, can be -specified as well. - -If @code{AC_CONFIG_HEADER}, @code{AC_LINK_FILES}, or -@code{AC_CONFIG_SUBDIRS} has been called, this macro also creates the -files named as their arguments. - -A typical call to @code{AC_OUTPUT} looks like this: -@example -AC_OUTPUT(Makefile src/Makefile man/Makefile X/Imakefile) -@end example - -You can override an input file name by appending it to @var{file}, -separated by a colon. For example, -@example -AC_OUTPUT(Makefile:templates/top.mk lib/Makefile:templates/lib.mk) -@end example - -If you pass @var{extra-cmds}, those commands will be inserted into -@file{config.status} to be run after all its other processing. If -@var{init-cmds} are given, they are inserted just before -@var{extra-cmds}, with shell variable, command, and backslash -substitutions performed on them in @code{configure}. You can use -@var{init-cmds} to pass variables from @code{configure} to the -@var{extra-cmds}. -@end defmac - -If you run @code{make} on subdirectories, you should run it using the -@code{make} variable @code{MAKE}. Most versions of @code{make} set -@code{MAKE} to the name of the @code{make} program plus any options it -was given. (But many do not include in it the values of any variables -set on the command line, so those are not passed on automatically.) -Some old versions of @code{make} do not set this variable. The -following macro allows you to use it even with those versions. - -@defmac AC_PROG_MAKE_SET -@maindex PROG_MAKE_SET -@ovindex SET_MAKE -If @code{make} predefines the variable @code{MAKE}, define output -variable @code{SET_MAKE} to be empty. Otherwise, define @code{SET_MAKE} -to contain @samp{MAKE=make}. Calls @code{AC_SUBST} for @code{SET_MAKE}. -@end defmac - -To use this macro, place a line like this in each @file{Makefile.in} -that runs @code{MAKE} on other directories: - -@example -@@SET_MAKE@@ -@end example - -@node Makefile Substitutions, Configuration Headers, Output, Setup -@section Substitutions in Makefiles - -Each subdirectory in a distribution that contains something to be -compiled or installed should come with a file @file{Makefile.in}, from -which @code{configure} will create a @file{Makefile} in that directory. -To create a @file{Makefile}, @code{configure} performs a simple variable -substitution, replacing occurrences of @samp{@@@var{variable}@@} in -@file{Makefile.in} with the value that @code{configure} has determined -for that variable. Variables that are substituted into output files in -this way are called @dfn{output variables}. They are ordinary shell -variables that are set in @code{configure}. To make @code{configure} -substitute a particular variable into the output files, the macro -@code{AC_SUBST} must be called with that variable name as an argument. -Any occurrences of @samp{@@@var{variable}@@} for other variables are -left unchanged. @xref{Setting Output Variables}, for more information on -creating output variables with @code{AC_SUBST}. - -A software package that uses a @code{configure} script should be -distributed with a file @file{Makefile.in}, but no @file{Makefile}; that -way, the user has to properly configure the package for the local system -before compiling it. - -@xref{Makefile Conventions, , Makefile Conventions, standards.info, The -GNU Coding Standards}, for more information on what to put in -@file{Makefile}s. - -@menu -* Preset Output Variables:: Output variables that are always set. -* Build Directories:: Compiling in a different directory. -* Automatic Remaking:: Makefile rules for configuring. -@end menu - -@node Preset Output Variables, Build Directories, , Makefile Substitutions -@subsection Preset Output Variables - -Some output variables are preset by the Autoconf macros. Some of the -Autoconf macros set additional output variables, which are mentioned in -the descriptions for those macros. @xref{Output Variable Index}, for a -complete list of output variables. Here is what each of the preset ones -contains. - -@defvar configure_input -@ovindex configure_input -A comment saying that the file was generated automatically by -@code{configure} and giving the name of the input file. -@code{AC_OUTPUT} adds a comment line containing this variable to the top -of every @file{Makefile} it creates. For other files, you should -reference this variable in a comment at the top of each input file. For -example, an input shell script should begin like this: - -@example -#!/bin/sh -# @@configure_input@@ -@end example - -@noindent -The presence of that line also reminds people editing the file that it -needs to be processed by @code{configure} in order to be used. -@end defvar - -@defvar exec_prefix -@ovindex exec_prefix -The installation prefix for architecture-dependent files. -@end defvar - -@defvar prefix -@ovindex prefix -The installation prefix for architecture-independent files. -@end defvar - -@defvar srcdir -@ovindex srcdir -The directory that contains the source code for that @file{Makefile}. -@end defvar - -@defvar top_srcdir -@ovindex top_srcdir -The top-level source code directory for the package. In the top-level -directory, this is the same as @code{srcdir}. -@end defvar - -@defvar CFLAGS -@ovindex CFLAGS -Debugging and optimization options for the C compiler. If it is not set -in the environment when @code{configure} runs, the default value is set -when you call @code{AC_PROG_CC} (or empty if you don't). @code{configure} -uses this variable when compiling programs to test for C features. -@end defvar - -@defvar CPPFLAGS -@ovindex CPPFLAGS -Header file search directory (@samp{-I@var{dir}}) and any other -miscellaneous options for the C preprocessor and compiler. If it is not -set in the environment when @code{configure} runs, the default value is -empty. @code{configure} uses this variable when compiling or -preprocessing programs to test for C features. -@end defvar - -@defvar CXXFLAGS -@ovindex CXXFLAGS -Debugging and optimization options for the C++ compiler. If it is not -set in the environment when @code{configure} runs, the default value is -set when you call @code{AC_PROG_CXX} (or empty if you don't). -@code{configure} uses this variable when compiling programs to test for -C++ features. -@end defvar - -@defvar DEFS -@ovindex DEFS -@samp{-D} options to pass to the C compiler. If @code{AC_CONFIG_HEADER} -is called, @code{configure} replaces @samp{@@DEFS@@} with -@samp{-DHAVE_CONFIG_H} instead (@pxref{Configuration Headers}). This -variable is not defined while @code{configure} is performing its tests, -only when creating the output files. @xref{Setting Output Variables}, for -how to check the results of previous tests. -@end defvar - -@defvar LDFLAGS -@ovindex LDFLAGS -Stripping (@samp{-s}) and any other miscellaneous options for the -linker. If it is not set in the environment when @code{configure} runs, -the default value is empty. @code{configure} uses this variable when -linking programs to test for C features. -@end defvar - -@defvar LIBS -@ovindex LIBS -@samp{-l} and @samp{-L} options to pass to the linker. -@end defvar - -@node Build Directories, Automatic Remaking, Preset Output Variables, Makefile Substitutions -@subsection Build Directories - -You might want to compile a software package in a different directory -from the one that contains the source code. Doing this allows you to -compile the package for several architectures simultaneously from the -same copy of the source code and keep multiple sets of object files on -disk. - -To support doing this, @code{make} uses the @code{VPATH} variable to -find the files that are in the source directory. GNU @code{make} and -most other recent @code{make} programs can do this. Older @code{make} -programs do not support @code{VPATH}; when using them, the source code -must be in the same directory as the object files. - -To support @code{VPATH}, each @file{Makefile.in} should contain two -lines that look like: - -@example -srcdir = @@srcdir@@ -VPATH = @@srcdir@@ -@end example - -Do not set @code{VPATH} to the value of another variable, for example -@samp{VPATH = $(srcdir)}, because some versions of @code{make} do not do -variable substitutions on the value of @code{VPATH}. - -@code{configure} substitutes in the correct value for @code{srcdir} when -it produces @file{Makefile.in}. - -Do not use the @code{make} variable @code{$<}, which expands to the -pathname of the file in the source directory (found with @code{VPATH}), -except in implicit rules. (An implicit rule is one such as @samp{.c.o}, -which tells how to create a @file{.o} file from a @file{.c} file.) Some -versions of @code{make} do not set @code{$<} in explicit rules; they -expand it to an empty value. - -Instead, @file{Makefile} command lines should always refer to source -files by prefixing them with @samp{$(srcdir)/}. For example: - -@example -time.info: time.texinfo - $(MAKEINFO) $(srcdir)/time.texinfo -@end example - -@node Automatic Remaking, , Build Directories, Makefile Substitutions -@subsection Automatic Remaking - -You can put rules like the following in the top-level @file{Makefile.in} -for a package to automatically update the configuration information when -you change the configuration files. This example includes all of the -optional files, such as @file{aclocal.m4} and those related to -configuration header files. Omit from the @file{Makefile.in} rules any -of these files that your package does not use. - -The @samp{$@{srcdir@}/} prefix is included because of limitations in the -@code{VPATH} mechanism. - -The @file{stamp-} files are necessary because the timestamps of -@file{config.h.in} and @file{config.h} will not be changed if remaking -them does not change their contents. This feature avoids unnecessary -recompilation. You should include the file @file{stamp-h.in} your -package's distribution, so @code{make} will consider @file{config.h.in} -up to date. On some old BSD systems, @code{touch} or any command that -results in an empty file does not update the timestamps, so use a -command like @code{date} as a workaround. - -@example -@group -$@{srcdir@}/configure: configure.in aclocal.m4 - cd $@{srcdir@} && autoconf - -# autoheader might not change config.h.in, so touch a stamp file. -$@{srcdir@}/config.h.in: stamp-h.in -$@{srcdir@}/stamp-h.in: configure.in aclocal.m4 acconfig.h \ - config.h.top config.h.bot - cd $@{srcdir@} && autoheader - date > $@{srcdir@}/stamp-h.in - -config.h: stamp-h -stamp-h: config.h.in config.status - ./config.status - -Makefile: Makefile.in config.status - ./config.status - -config.status: configure - ./config.status --recheck -@end group -@end example - -In addition, you should pass @samp{date > stamp-h} in the @var{extra-cmds} -argument to @code{AC_OUTPUT}, so @file{config.status} will ensure that -@file{config.h} is considered up to date. @xref{Output}, for more -information about @code{AC_OUTPUT}. - -@xref{Invoking config.status}, for more examples of handling -configuration-related dependencies. - -@node Configuration Headers, Subdirectories, Makefile Substitutions, Setup -@section Configuration Header Files - -When a package tests more than a few C preprocessor symbols, the command -lines to pass @samp{-D} options to the compiler can get quite long. -This causes two problems. One is that the @code{make} output is hard to -visually scan for errors. More seriously, the command lines can exceed -the length limits of some operating systems. As an alternative to -passing @samp{-D} options to the compiler, @code{configure} scripts can -create a C header file containing @samp{#define} directives. The -@code{AC_CONFIG_HEADER} macro selects this kind of output. It should be -called right after @code{AC_INIT}. - -The package should @samp{#include} the configuration header file before -any other header files, to prevent inconsistencies in declarations (for -example, if it redefines @code{const}). Use @samp{#include <config.h>} -instead of @samp{#include "config.h"}, and pass the C compiler a -@samp{-I.} option (or @samp{-I..}; whichever directory contains -@file{config.h}). That way, even if the source directory is configured -itself (perhaps to make a distribution), other build directories can -also be configured without finding the @file{config.h} from the source -directory. - -@defmac AC_CONFIG_HEADER (@var{header-to-create} @dots{}) -@maindex CONFIG_HEADER -@cvindex HAVE_CONFIG_H -Make @code{AC_OUTPUT} create the file(s) in the whitespace-separated -list @var{header-to-create} containing C preprocessor @code{#define} -statements, and replace @samp{@@DEFS@@} in generated files with -@samp{-DHAVE_CONFIG_H} instead of the value of @code{DEFS}. The usual -name for @var{header-to-create} is @file{config.h}. - -If @var{header-to-create} already exists and its contents are identical -to what @code{AC_OUTPUT} would put in it, it is left alone. Doing this -allows some changes in configuration without needlessly causing object -files that depend on the header file to be recompiled. - -Usually the input file is named @file{@var{header-to-create}.in}; -however, you can override the input file name by appending it to -@var{header-to-create}, separated by a colon. For example, -@example -AC_CONFIG_HEADER(defines.h:defines.hin) -@end example -@noindent -Doing this allows you to keep your filenames acceptable to MS-DOS. -@end defmac - -@menu -* Header Templates:: Input for the configuration headers. -* Invoking autoheader:: How to create configuration templates. -@end menu - -@node Header Templates, Invoking autoheader, , Configuration Headers -@subsection Configuration Header Templates - -Your distribution should contain a template file that looks as you want -the final header file to look, including comments, with default values -in the @code{#define} statements. For example, suppose your -@file{configure.in} makes these calls: - -@example -AC_CONFIG_HEADER(conf.h) -AC_CHECK_HEADERS(unistd.h) -@end example - -@noindent -Then you could have code like the following in @file{conf.h.in}. -On systems that have @file{unistd.h}, @code{configure} will change the 0 -to a 1. On other systems, it will leave the line unchanged. - -@example -@group -/* Define as 1 if you have unistd.h. */ -#define HAVE_UNISTD_H 0 -@end group -@end example - -Alternately, if your code tests for configuration options using -@code{#ifdef} instead of @code{#if}, a default value can be to -@code{#undef} the variable instead of to define it to a value. On -systems that have @file{unistd.h}, @code{configure} will change the -second line to read @samp{#define HAVE_UNISTD_H 1}. On other systems, -it will comment that line out (in case the system predefines that -symbol). - -@example -@group -/* Define if you have unistd.h. */ -#undef HAVE_UNISTD_H -@end group -@end example - -@node Invoking autoheader, , Header Templates, Configuration Headers -@subsection Using @code{autoheader} to Create @file{config.h.in} - -The @code{autoheader} program can create a template file of C -@samp{#define} statements for @code{configure} to use. If -@file{configure.in} invokes @code{AC_CONFIG_HEADER(@var{file})}, -@code{autoheader} creates @file{@var{file}.in}. Otherwise, -@code{autoheader} creates @file{config.h.in}. - -If you give @code{autoheader} an argument, it uses that file instead of -@file{configure.in} and writes the header file to the standard output -instead of to @file{config.h.in}. If you give @code{autoheader} an -argument of @samp{-}, it reads the standard input instead of -@file{configure.in} and writes the header file to the standard output. - -@code{autoheader} scans @file{configure.in} and figures out which C -preprocessor symbols it might define. It copies comments and -@code{#define} and @code{#undef} statements from a file called -@file{acconfig.h}, which comes with and is installed with Autoconf. It -also uses a file called @file{acconfig.h} in the current directory, if -present. If you @code{AC_DEFINE} any additional symbols, you must -create that file with entries for them. For symbols defined by -@code{AC_CHECK_HEADERS}, @code{AC_CHECK_FUNCS}, @code{AC_CHECK_SIZEOF}, -or @code{AC_CHECK_LIB}, @code{autoheader} generates comments and -@code{#undef} statements itself rather than copying them from a file, -since the possible symbols are effectively limitless. - -The file that @code{autoheader} creates contains mainly @code{#define} -and @code{#undef} statements and their accompanying comments. If -@file{./acconfig.h} contains the string @samp{@@TOP@@}, -@code{autoheader} copies the lines before the line containing -@samp{@@TOP@@} into the top of the file that it generates. Similarly, -if @file{./acconfig.h} contains the string @samp{@@BOTTOM@@}, -@code{autoheader} copies the lines after that line to the end of the -file it generates. Either or both of those strings may be omitted. - -An alternate way to produce the same effect is to create the files -@file{@var{file}.top} (typically @file{config.h.top}) and/or -@file{@var{file}.bot} in the current directory. If they exist, -@code{autoheader} copies them to the beginning and end, respectively, of -its output. Their use is discouraged because they have file names that -contain two periods, and so can not be stored on MS-DOS; also, they are -two more files to clutter up the directory. But if you use the -@samp{--localdir=@var{dir}} option to use an @file{acconfig.h} in another -directory, they give you a way to put custom boilerplate in each -individual @file{config.h.in}. - -@code{autoheader} accepts the following options: - -@table @code -@item --help -@itemx -h -Print a summary of the command line options and exit. - -@item --localdir=@var{dir} -@itemx -l @var{dir} -Look for the package files @file{aclocal.m4} and @file{acconfig.h} (but -not @file{@var{file}.top} and @file{@var{file}.bot}) in directory -@var{dir} instead of in the current directory. - -@item --macrodir=@var{dir} -@itemx -m @var{dir} -@evindex AC_MACRODIR -Look for the installed macro files and @file{acconfig.h} in directory -@var{dir}. You can also set the @code{AC_MACRODIR} environment variable -to a directory; this option overrides the environment variable. - -@item --version -Print the version number of Autoconf and exit. -@end table - -@node Subdirectories, Default Prefix, Configuration Headers, Setup -@section Configuring Other Packages in Subdirectories - -In most situations, calling @code{AC_OUTPUT} is sufficient to produce -@file{Makefile}s in subdirectories. However, @code{configure} scripts -that control more than one independent package can use -@code{AC_CONFIG_SUBDIRS} to run @code{configure} scripts for other -packages in subdirectories. - -@defmac AC_CONFIG_SUBDIRS (@var{dir} @dots{}) -@maindex CONFIG_SUBDIRS -@ovindex subdirs -Make @code{AC_OUTPUT} run @code{configure} in each subdirectory -@var{dir} in the given whitespace-separated list. If a given @var{dir} -is not found, no error is reported, so a @code{configure} script can -configure whichever parts of a large source tree are present. If a -given @var{dir} contains @file{configure.in} but no @code{configure}, -the Cygnus @code{configure} script found by @code{AC_CONFIG_AUXDIR} is -used. The subdirectory @code{configure} scripts are given the same -command line options that were given to this @code{configure} script, -with minor changes if needed (e.g., to adjust a relative path for the -cache file or source directory). This macro also sets the output -variable @code{subdirs} to the list of directories @samp{@var{dir} -@dots{}}. @file{Makefile} rules can use this variable to determine -which subdirectories to recurse into. -@end defmac - -@node Default Prefix, Versions, Subdirectories, Setup -@section Default Prefix - -By default, @code{configure} sets the prefix for files it installs to -@file{/usr/local}. The user of @code{configure} can select a different -prefix using the @samp{--prefix} and @samp{--exec-prefix} options. -There are two ways to change the default: when creating -@code{configure}, and when running it. - -Some software packages might want to install in a directory besides -@file{/usr/local} by default. To accomplish that, use the -@code{AC_PREFIX_DEFAULT} macro. - -@defmac AC_PREFIX_DEFAULT (@var{prefix}) -Set the default installation prefix to @var{prefix} instead of @file{/usr/local}. -@end defmac - -It may be convenient for users to have @code{configure} guess the -installation prefix from the location of a related program that they -have already installed. If you wish to do that, you can call -@code{AC_PREFIX_PROGRAM}. - -@defmac AC_PREFIX_PROGRAM (@var{program}) -@maindex PREFIX_PROGRAM -If the user did not specify an installation prefix (using the -@samp{--prefix} option), guess a value for it by looking for -@var{program} in @code{PATH}, the way the shell does. If @var{program} -is found, set the prefix to the parent of the directory containing -@var{program}; otherwise leave the prefix specified in -@file{Makefile.in} unchanged. For example, if @var{program} is -@code{gcc} and the @code{PATH} contains @file{/usr/local/gnu/bin/gcc}, -set the prefix to @file{/usr/local/gnu}. -@end defmac - -@node Versions, , Default Prefix, Setup -@section Version Numbers in @code{configure} - -The following macros manage version numbers for @code{configure} -scripts. Using them is optional. - -@defmac AC_PREREQ (@var{version}) -@maindex PREREQ -Ensure that a recent enough version of Autoconf is being used. If the -version of Autoconf being used to create @code{configure} is earlier -than @var{version}, print an error message on the standard error output -and do not create @code{configure}. For example: - -@example -AC_PREREQ(1.8) -@end example - -This macro is useful if your @file{configure.in} relies on non-obvious -behavior that changed between Autoconf releases. If it merely needs -recently added macros, then @code{AC_PREREQ} is less useful, because the -@code{autoconf} program already tells the user which macros are not -found. The same thing happens if @file{configure.in} is processed by a -version of Autoconf older than when @code{AC_PREREQ} was added. -@end defmac - -@defmac AC_REVISION (@var{revision-info}) -@maindex REVISION -Copy revision stamp @var{revision-info} into the @code{configure} -script, with any dollar signs or double-quotes removed. This macro lets -you put a revision stamp from @file{configure.in} into @code{configure} -without RCS or CVS changing it when you check in @code{configure}. That -way, you can determine easily which revision of @file{configure.in} a -particular @code{configure} corresponds to. - -It is a good idea to call this macro before @code{AC_INIT} so that the -revision number is near the top of both @file{configure.in} and -@code{configure}. To support doing that, the @code{AC_REVISION} output -begins with @samp{#!/bin/sh}, like the normal start of a -@code{configure} script does. - -For example, this line in @file{configure.in}: - -@c The asis prevents RCS from changing the example in the manual. -@example -AC_REVISION($@asis{Revision: 1.30 }$)dnl -@end example - -@noindent -produces this in @code{configure}: - -@example -#!/bin/sh -# From configure.in Revision: 1.30 -@end example -@end defmac - -@node Existing Tests, Writing Tests, Setup, Top -@chapter Existing Tests - -These macros test for particular system features that packages -might need or want to use. If you need to test for a kind of feature -that none of these macros check for, you can probably do it by calling -primitive test macros with appropriate arguments (@pxref{Writing Tests}). - -These tests print messages telling the user which feature they're -checking for, and what they find. They cache their results for future -@code{configure} runs (@pxref{Caching Results}). - -Some of these macros set output variables. @xref{Makefile -Substitutions}, for how to get their values. The phrase ``define -@var{name}'' is used below as a shorthand to mean ``define C -preprocessor symbol @var{name} to the value 1''. @xref{Defining -Symbols}, for how to get those symbol definitions into your program. - -@menu -* Alternative Programs:: Selecting between alternative programs. -* Libraries:: Library archives that might be missing. -* Library Functions:: C library functions that might be missing. -* Header Files:: Header files that might be missing. -* Structures:: Structures or members that might be missing. -* Typedefs:: @code{typedef}s that might be missing. -* Compiler Characteristics:: C compiler or machine architecture features. -* System Services:: Operating system services. -* UNIX Variants:: Special kludges for specific UNIX variants. -@end menu - -@node Alternative Programs, Libraries, , Existing Tests -@section Alternative Programs - -These macros check for the presence or behavior of particular programs. -They are used to choose between several alternative programs and to -decide what to do once one has been chosen. -If there is no macro specifically defined to check for a program you need, -and you don't need to check for any special properties of -it, then you can use one of the general program check macros. - -@menu -* Particular Programs:: Special handling to find certain programs. -* Generic Programs:: How to find other programs. -@end menu - -@node Particular Programs, Generic Programs, , Alternative Programs -@subsection Particular Program Checks - -These macros check for particular programs---whether they exist, and -in some cases whether they support certain features. - -@defmac AC_DECL_YYTEXT -@maindex DECL_YYTEXT -@cvindex YYTEXT_POINTER -@ovindex LEX_OUTPUT_ROOT -Define @code{YYTEXT_POINTER} if @code{yytext} is a @samp{char *} instead -of a @samp{char []}. Also set output variable @code{LEX_OUTPUT_ROOT} to -the base of the file name that the lexer generates; usually -@file{lex.yy}, but sometimes something else. These results vary -according to whether @code{lex} or @code{flex} is being used. -@end defmac - -@defmac AC_PROG_AWK -@maindex PROG_AWK -@ovindex AWK -Check for @code{mawk}, @code{gawk}, @code{nawk}, and @code{awk}, in that -order, and set output variable @code{AWK} to the first one that it -finds. It tries @code{mawk} first because that is reported to be the -fastest implementation. -@end defmac - -@defmac AC_PROG_CC -@maindex PROG_CC -@ovindex CC -@ovindex CFLAGS -Determine a C compiler to use. If @code{CC} is not already set in the -environment, check for @code{gcc}, and use @code{cc} if it's not found. -Set output variable @code{CC} to the name of the compiler found. - -If using the GNU C compiler, set shell variable @code{GCC} to -@samp{yes}, empty otherwise. If output variable @code{CFLAGS} was -not already set, set it to @samp{-g -O} for the GNU C compiler -(@samp{-O} on systems where GCC does not accept @samp{-g}), or @samp{-g} -for other compilers. -@end defmac - -@defmac AC_PROG_CC_C_O -@maindex PROG_CC_C_O -@cvindex NO_MINUS_C_MINUS_O -If the C compiler does not accept the @samp{-c} and @samp{-o} options -simultaneously, define @code{NO_MINUS_C_MINUS_O}. -@end defmac - -@defmac AC_PROG_CPP -@maindex PROG_CPP -@ovindex CPP -Set output variable @code{CPP} to a command that runs the -C preprocessor. If @samp{$CC -E} doesn't work, it uses @file{/lib/cpp}. -It is only portable to run @code{CPP} on files with a @file{.c} -extension. - -If the current language is C (@pxref{Language Choice}), many of the -specific test macros use the value of @code{CPP} indirectly by calling -@code{AC_TRY_CPP}, @code{AC_CHECK_HEADER}, @code{AC_EGREP_HEADER}, or -@code{AC_EGREP_CPP}. -@end defmac - -@defmac AC_PROG_CXX -@maindex PROG_CXX -@ovindex CXX -@ovindex CXXFLAGS -Determine a C++ compiler to use. Check if the environment variable -@code{CXX} or @code{CCC} (in that order) is set; if so, set output -variable @code{CXX} to its value. Otherwise search for a C++ compiler -under likely names (@code{c++}, @code{g++}, @code{gcc}, @code{CC}, and -@code{cxx}). If none of those checks succeed, as a last resort set -@code{CXX} to @code{gcc}. - -If using the GNU C++ compiler, set shell variable @code{GXX} to -@samp{yes}, empty otherwise. If output variable @code{CXXFLAGS} was -not already set, set it to @samp{-g -O} for the GNU C++ compiler -(@samp{-O} on systems where G++ does not accept @samp{-g}), or @samp{-g} -for other compilers. -@end defmac - -@defmac AC_PROG_CXXCPP -@maindex PROG_CXXCPP -@ovindex CXXCPP -Set output variable @code{CXXCPP} to a command that runs the -C++ preprocessor. If @samp{$CXX -E} doesn't work, it uses @file{/lib/cpp}. -It is only portable to run @code{CXXCPP} on files with a @file{.c}, -@file{.C}, or @file{.cc} extension. - -If the current language is C++ (@pxref{Language Choice}), many of the -specific test macros use the value of @code{CXXCPP} indirectly by -calling @code{AC_TRY_CPP}, @code{AC_CHECK_HEADER}, -@code{AC_EGREP_HEADER}, or @code{AC_EGREP_CPP}. -@end defmac - -@defmac AC_PROG_GCC_TRADITIONAL -@maindex PROG_GCC_TRADITIONAL -@ovindex CC -Add @samp{-traditional} to output variable @code{CC} if using the -GNU C compiler and @code{ioctl} does not work properly without -@samp{-traditional}. That usually happens when the fixed header files -have not been installed on an old system. Since recent versions of the -GNU C compiler fix the header files automatically when installed, this -is becoming a less prevalent problem. -@end defmac - -@defmac AC_PROG_INSTALL -@maindex PROG_INSTALL -@ovindex INSTALL -@ovindex INSTALL_PROGRAM -@ovindex INSTALL_DATA -Set output variable @code{INSTALL} to the path of a BSD compatible -@code{install} program, if one is found in the current @code{PATH}. -Otherwise, set @code{INSTALL} to @samp{@var{dir}/install-sh -c}, -checking the directories specified to @code{AC_CONFIG_AUX_DIR} (or its -default directories) to determine @var{dir} (@pxref{Output}). Also set -the variable @code{INSTALL_PROGRAM} to @samp{$@{INSTALL@}} and -@code{INSTALL_DATA} to @samp{$@{INSTALL@} -m 644}. - -This macro screens out various instances of @code{install} known to not -work. It prefers to find a C program rather than a shell script, for -speed. Instead of @file{install-sh}, it can also use @file{install.sh}, -but that name is obsolete because some @code{make} programs have a rule -that creates @file{install} from it if there is no @file{Makefile}. - -A copy of @file{install-sh} which you may use comes with Autoconf. If -you use @code{AC_PROG_INSTALL}, you must include either -@file{install-sh} or @file{install.sh} in your distribution, or -@code{configure} will produce an error message saying it can't find -them---even if the system you're on has a good @code{install} program. -This check is a safety measure to prevent you from accidentally leaving -that file out, which would prevent your package from installing on -systems that don't have a BSD-compatible @code{install} program. - -If you need to use your own installation program because it has -features not found in standard @code{install} programs, there is no -reason to use @code{AC_PROG_INSTALL}; just put the pathname of your -program into your @file{Makefile.in} files. -@end defmac - -@defmac AC_PROG_LEX -@maindex PROG_LEX -@ovindex LEX -@ovindex LEXLIB -If @code{flex} is found, set output variable @code{LEX} to -@samp{flex} and @code{LEXLIB} to @samp{-lfl}, if that library is in a -standard place. Otherwise set @code{LEX} to @samp{lex} and -@code{LEXLIB} to @samp{-ll}. -@end defmac - -@defmac AC_PROG_LN_S -@maindex PROG_LN_S -@ovindex LN_S -If @samp{ln -s} works on the current filesystem (the operating system -and filesystem support symbolic links), set output -variable @code{LN_S} to @samp{ln -s}, otherwise set it to @samp{ln}. -@end defmac - -@defmac AC_PROG_RANLIB -@maindex PROG_RANLIB -@ovindex RANLIB -Set output variable @code{RANLIB} to @samp{ranlib} if @code{ranlib} -is found, otherwise to @samp{:} (do nothing). -@end defmac - -@defmac AC_PROG_YACC -@maindex PROG_YACC -@ovindex YACC -If @code{bison} is found, set output variable @code{YACC} to -@samp{bison -y}. Otherwise, if @code{byacc} is found, set @code{YACC} -to @samp{byacc}. Otherwise set @code{YACC} to @samp{yacc}. -@end defmac - -@node Generic Programs, , Particular Programs, Alternative Programs -@subsection Generic Program Checks - -These macros are used to find programs not covered by the particular -test macros. If you need to check the behavior of a program as well as -find out whether it is present, you have to write your own test for -it (@pxref{Writing Tests}). - -@defmac AC_CHECK_PROG (@var{variable}, @var{prog-to-check-for}, @var{value-if-found} @r{[}, @var{value-if-not-found}@r{]}) -@maindex CHECK_PROG -Check whether program @var{prog-to-check-for} exists in @code{PATH}. If -it is found, set @var{variable} to @var{value-if-found}, otherwise to -@var{value-if-not-found}, if given. If @var{variable} was already set, -do nothing. Calls @code{AC_SUBST} for @var{variable}. -@end defmac - -@defmac AC_CHECK_PROGS (@var{variable}, @var{progs-to-check-for} @r{[}, @var{value-if-not-found}@r{]}) -@maindex CHECK_PROGS -Check for each program in the whitespace-separated list -@var{progs-to-check-for} exists in @code{PATH}. If it is found, set -@var{variable} to the name of that program. Otherwise, continue -checking the next program in the list. If none of the programs in the -list are found, set @var{variable} to @var{value-if-not-found}; if -@var{value-if-not-found} is not specified, the value of @var{variable} -is not changed. Calls @code{AC_SUBST} for @var{variable}. -@end defmac - -@defmac AC_PATH_PROG (@var{variable}, @var{prog-to-check-for} @r{[}, @var{value-if-not-found}@r{]}) -@maindex PATH_PROG -Like @code{AC_CHECK_PROG}, but set @var{variable} to the entire -path of @var{prog-to-check-for} if found. -@end defmac - -@defmac AC_PATH_PROGS (@var{variable}, @var{progs-to-check-for} @r{[}, @var{value-if-not-found}@r{]}) -@maindex PATH_PROGS -Like @code{AC_CHECK_PROGS}, but if any of @var{progs-to-check-for} -are found, set @var{variable} to the entire path of the program -found. -@end defmac - -@node Libraries, Library Functions, Alternative Programs, Existing Tests -@section Library Files - -The following macros check for the presence of certain C library archive -files. - -@defmac AC_CHECK_LIB (@var{library}, @var{function} @r{[}, @var{action-if-found} @r{[}, @var{action-if-not-found} @r{[}, @var{other-libraries}@r{]]]}) -@maindex CHECK_LIB -Try to ensure that C function @var{function} is available by checking -whether a test C program can be linked with the library @var{library} to -get the function. @var{library} is the base name of the library; e.g., -to check for @samp{-lmp}, use @samp{mp} as the @var{library} argument. - -@var{action-if-found} is a list of shell commands to run if the link -with the library succeeds; @var{action-if-not-found} is a list of shell -commands to run if the link fails. If @var{action-if-found} and -@var{action-if-not-found} are not specified, the default action is to -add @samp{-l@var{library}} to @code{LIBS} and define -@samp{HAVE_LIB@var{library}} (in all capitals). - -If linking with @var{library} results in unresolved symbols, which would -be resolved by linking with additional libraries, give those libraries -as the @var{other-libraries} argument, separated by spaces: @samp{-lX11 --lXt}. Otherwise this macro will fail to detect that @var{library} is -present, because linking the test program will always fail with -unresolved symbols. -@end defmac - -@defmac AC_HAVE_LIBRARY (@var{library}, @r{[}, @var{action-if-found} @r{[}, @var{action-if-not-found} @r{[}, @var{other-libraries}@r{]]]}) -@maindex HAVE_LIBRARY -This macro is equivalent to calling @code{AC_CHECK_LIB} with a -@var{function} argument of @code{main}. In addition, @var{library} can -be written as any of @samp{foo}, @samp{-lfoo}, or @samp{libfoo.a}. In -all of those cases, the compiler is passed @samp{-lfoo}. However, -@var{library} can not be a shell variable; it must be a literal name. -This macro is considered obsolete. -@end defmac - -@node Library Functions, Header Files, Libraries, Existing Tests -@section Library Functions - -The following macros check for particular C library functions. -If there is no macro specifically defined to check for a function you need, -and you don't need to check for any special properties of -it, then you can use one of the general function check macros. - -@menu -* Particular Functions:: Special handling to find certain functions. -* Generic Functions:: How to find other functions. -@end menu - -@node Particular Functions, Generic Functions, , Library Functions -@subsection Particular Function Checks - -These macros check for particular C functions---whether they exist, and -in some cases how they respond when given certain arguments. - -@defmac AC_FUNC_ALLOCA -@maindex FUNC_ALLOCA -@cvindex C_ALLOCA -@cvindex HAVE_ALLOCA_H -@ovindex ALLOCA -Check how to get @code{alloca}. Tries to get a builtin version by -checking for @file{alloca.h} or the predefined C preprocessor macros -@code{__GNUC__} and @code{_AIX}. If this macro finds @file{alloca.h}, -it defines @code{HAVE_ALLOCA_H}. - -If those attempts fail, it looks for the function in the standard C -library. If any of those methods succeed, it defines -@code{HAVE_ALLOCA}. Otherwise, it sets the output variable -@code{ALLOCA} to @samp{alloca.o} and defines @code{C_ALLOCA} (so -programs can periodically call @samp{alloca(0)} to garbage collect). -This variable is separate from @code{LIBOBJS} so multiple programs can -share the value of @code{ALLOCA} without needing to create an actual -library, in case only some of them use the code in @code{LIBOBJS}. - -This macro does not try to get @code{alloca} from the System V R3 -@file{libPW} or the System V R4 @file{libucb} because those libraries -contain some incompatible functions that cause trouble. Some versions -do not even contain @code{alloca} or contain a buggy version. If you -still want to use their @code{alloca}, use @code{ar} to extract -@file{alloca.o} from them instead of compiling @file{alloca.c}. - -Source files that use @code{alloca} should start with a piece of code -like the following, to declare it properly. In some versions -of AIX, the declaration of @code{alloca} must precede everything else -except for comments and preprocessor directives. The @code{#pragma} -directive is indented so that pre-ANSI C compilers will ignore it, -rather than choke on it. - -@example -@group -/* AIX requires this to be the first thing in the file. */ -#ifdef __GNUC__ -# define alloca __builtin_alloca -#else -# if HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - #pragma alloca -# else -# ifndef alloca /* predefined by HP cc +Olibcalls */ -char *alloca (); -# endif -# endif -# endif -#endif -@end group -@end example -@end defmac - -@defmac AC_FUNC_CLOSEDIR_VOID -@maindex FUNC_CLOSEDIR_VOID -@cvindex CLOSEDIR_VOID -If the @code{closedir} function does not return a meaningful value, -define @code{CLOSEDIR_VOID}. Otherwise, callers ought to check its -return value for an error indicator. -@end defmac - -@defmac AC_FUNC_GETLOADAVG -@maindex FUNC_GETLOADAVG -@cvindex SVR4 -@cvindex DGUX -@cvindex UMAX -@cvindex UMAX4_3 -@cvindex NLIST_STRUCT -@cvindex NLIST_NAME_UNION -@cvindex GETLODAVG_PRIVILEGED -@cvindex NEED_SETGID -@ovindex LIBOBJS -@ovindex NEED_SETGID -@ovindex KMEM_GROUP -Check how to get the system load averages. If the system has the -@code{getloadavg} function, this macro defines @code{HAVE_GETLOADAVG}, -and adds to @code{LIBS} any libraries needed to get that function. - -Otherwise, it adds @samp{getloadavg.o} to the output variable -@code{LIBOBJS}, and possibly defines several other C preprocessor -macros and output variables: - -@enumerate -@item -It defines @code{SVR4}, @code{DGUX}, @code{UMAX}, or @code{UMAX4_3} if -on those systems. - -@item -If it finds @file{nlist.h}, it defines @code{NLIST_STRUCT}. - -@item -If @samp{struct nlist} has an @samp{n_un} member, it defines -@code{NLIST_NAME_UNION}. - -@item -If compiling @file{getloadavg.c} defines @code{LDAV_PRIVILEGED}, -programs need to be installed specially on this system for -@code{getloadavg} to work, and this macro defines -@code{GETLOADAVG_PRIVILEGED}. - -@item -This macro sets the output variable @code{NEED_SETGID}. The value is -@samp{true} if special installation is required, @samp{false} if not. -If @code{NEED_SETGID} is @samp{true}, this macro sets @code{KMEM_GROUP} -to the name of the group that should own the installed program. -@end enumerate -@end defmac - -@defmac AC_FUNC_GETMNTENT -@maindex FUNC_GETMNTENT -@cvindex HAVE_GETMNTENT -Check for the @code{getmntent} in the @file{sun} and @file{seq} -libraries, for Irix 4 and PTX, respectively. Then, if @code{getmntent} is -available, define @code{HAVE_GETMNTENT}. -@end defmac - -@defmac AC_FUNC_MEMCMP -@maindex FUNC_MEMCMP -@ovindex LIBOBJS -If the @code{memcmp} function is not available, or does not work on -8-bit data (like the one on SunOS 4.1.3), add @samp{memcmp.o} to output -variable @code{LIBOBJS}. -@end defmac - -@defmac AC_FUNC_MMAP -@maindex FUNC_MMAP -@cvindex HAVE_MMAP -If the @code{mmap} function exists and works correctly on memory mapped -files, define @code{HAVE_MMAP}. -@end defmac - -@defmac AC_FUNC_SETVBUF_REVERSED -@maindex FUNC_SETVBUF_REVERSED -@cvindex SETVBUF_REVERSED -If @code{setvbuf} takes the buffering type as its second argument and -the buffer pointer as the third, instead of the other way around, define -@code{SETVBUF_REVERSED}. This is the case on System V before release 3. -@end defmac - -@defmac AC_FUNC_STRCOLL -@maindex FUNC_STRCOLL -@cvindex HAVE_STRCOLL -If the @code{strcoll} function exists and works correctly, define -@code{HAVE_STRCOLL}. This does a bit more than -@samp{AC_CHECK_FUNCS(strcoll)}, because some systems have incorrect -definitions of @code{strcoll}, which should not be used. -@end defmac - -@defmac AC_FUNC_STRFTIME -@maindex FUNC_STRFTIME -@cvindex HAVE_STRFTIME -Check for @code{strftime} in the @file{intl} library, for SCO UNIX. -Then, if @code{strftime} is available, define @code{HAVE_STRFTIME}. -@end defmac - -@defmac AC_FUNC_UTIME_NULL -@maindex FUNC_UTIME_NULL -@cvindex HAVE_UTIME_NULL -If @samp{utime(@var{file}, NULL)} sets @var{file}'s timestamp to -the present, define @code{HAVE_UTIME_NULL}. -@end defmac - -@defmac AC_FUNC_VFORK -@maindex FUNC_VFORK -@cvindex HAVE_VFORK_H -@cvindex vfork -If @file{vfork.h} is found, define @code{HAVE_VFORK_H}. If a working -@code{vfork} is not found, define @code{vfork} to be @code{fork}. This -macro checks for several known errors in implementations of @code{vfork} -and considers the system to not have a working @code{vfork} if it -detects any of them. -@end defmac - -@defmac AC_FUNC_VPRINTF -@maindex FUNC_VPRINTF -@cvindex HAVE_VPRINTF -@cvindex HAVE_DOPRNT -If @code{vprintf} is found, define @code{HAVE_VPRINTF}. Otherwise, if -@code{_doprnt} is found, define @code{HAVE_DOPRNT}. (If @code{vprintf} -is available, you may assume that @code{vfprintf} and @code{vsprintf} -are also available.) -@end defmac - -@defmac AC_FUNC_WAIT3 -@maindex FUNC_WAIT3 -@cvindex HAVE_WAIT3 -If @code{wait3} is found and fills in the contents of its third argument -(a @samp{struct rusage *}), which HP-UX does not do, define -@code{HAVE_WAIT3}. -@end defmac - -@node Generic Functions, , Particular Functions, Library Functions -@subsection Generic Function Checks - -These macros are used to find functions not covered by the particular -test macros. If the functions might be in libraries other than the -default C library, first call @code{AC_CHECK_LIB} for those libraries. -If you need to check the behavior of a function as well as find out -whether it is present, you have to write your own test for -it (@pxref{Writing Tests}). - -@defmac AC_CHECK_FUNC (@var{function}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex CHECK_FUNC -If C function @var{function} is available, run shell commands -@var{action-if-found}, otherwise @var{action-if-not-found}. If you just -want to define a symbol if the function is available, consider using -@code{AC_CHECK_FUNCS} instead. This macro checks for functions with C -linkage even when @code{AC_LANG_CPLUSPLUS} has been called, since C++ is -more standardized than C is. (@pxref{Language Choice}, for more -information about selecting the language for checks.) -@end defmac - -@defmac AC_CHECK_FUNCS (@var{function}@dots{} @r{[}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]]}) -@maindex CHECK_FUNCS -@cvindex HAVE_@var{function} -For each given @var{function} in the whitespace-separated argument list -that is available, define @code{HAVE_@var{function}} (in all capitals). If -@var{action-if-found} is given, it is additional shell code to execute -when one of the functions is found. You can give it a value of -@samp{break} to break out of the loop on the first match. If -@var{action-if-not-found} is given, it is executed when one of the -functions is not found. -@end defmac - -@defmac AC_REPLACE_FUNCS (@var{function-name}@dots{}) -@maindex REPLACE_FUNCS -@ovindex LIBOBJS -For each given @var{function-name} in the whitespace-separated argument -list that is not in the C library, add @samp{@var{function-name}.o} to -the value of the output variable @code{LIBOBJS}. -@end defmac - -@node Header Files, Structures, Library Functions, Existing Tests -@section Header Files - -The following macros check for the presence of certain C header files. -If there is no macro specifically defined to check for a header file you need, -and you don't need to check for any special properties of -it, then you can use one of the general header file check macros. - -@menu -* Particular Headers:: Special handling to find certain headers. -* Generic Headers:: How to find other headers. -@end menu - -@node Particular Headers, Generic Headers, , Header Files -@subsection Particular Header Checks - -These macros check for particular system header files---whether they -exist, and in some cases whether they declare certain symbols. - -@defmac AC_DECL_SYS_SIGLIST -@maindex DECL_SYS_SIGLIST -@cvindex SYS_SIGLIST_DECLARED -Define @code{SYS_SIGLIST_DECLARED} if the variable @code{sys_siglist} is -declared in a system header file, either @file{signal.h} or -@file{unistd.h}. -@end defmac - -@defmac AC_DIR_HEADER -@maindex DIR_HEADER -@cvindex DIRENT -@cvindex SYSDIR -@cvindex SYSNDIR -@cvindex NDIR -@cvindex VOID_CLOSEDIR -Like calling @code{AC_HEADER_DIRENT} and @code{AC_FUNC_CLOSEDIR_VOID}, -but defines a different set of C preprocessor macros to indicate which -header file is found. This macro and the names it defines are -considered obsolete. The names it defines are: - -@c The printed table looks too spaced out with blank lines between the entries. -@table @file -@item dirent.h -@code{DIRENT} -@item sys/ndir.h -@code{SYSNDIR} -@item sys/dir.h -@code{SYSDIR} -@item ndir.h -@code{NDIR} -@end table - -In addition, if the @code{closedir} function does not return a -meaningful value, define @code{VOID_CLOSEDIR}. -@end defmac - -@defmac AC_HEADER_DIRENT -@maindex HEADER_DIRENT -@cvindex HAVE_DIRENT_H -@cvindex HAVE_NDIR_H -@cvindex HAVE_SYS_DIR_H -@cvindex HAVE_SYS_NDIR_H -Check for the following header files, and for the first one that is -found and defines @samp{DIR}, define the listed C preprocessor macro: - -@c The printed table looks too spaced out with blank lines between the entries. -@table @file -@item dirent.h -@code{HAVE_DIRENT_H} -@item sys/ndir.h -@code{HAVE_SYS_NDIR_H} -@item sys/dir.h -@code{HAVE_SYS_DIR_H} -@item ndir.h -@code{HAVE_NDIR_H} -@end table - -The directory library declarations in the source code should look -something like the following: - -@example -@group -#if HAVE_DIRENT_H -# include <dirent.h> -# define NAMLEN(dirent) strlen((dirent)->d_name) -#else -# define dirent direct -# define NAMLEN(dirent) (dirent)->d_namlen -# if HAVE_SYS_NDIR_H -# include <sys/ndir.h> -# endif -# if HAVE_SYS_DIR_H -# include <sys/dir.h> -# endif -# if HAVE_NDIR_H -# include <ndir.h> -# endif -#endif -@end group -@end example - -Using the above declarations, the program would declare variables to be -type @code{struct dirent}, not @code{struct direct}, and would access -the length of a directory entry name by passing a pointer to a -@code{struct dirent} to the @code{NAMLEN} macro. - -This macro also checks for the SCO Xenix @file{dir} and @file{x} libraries. -@end defmac - -@defmac AC_HEADER_MAJOR -@maindex HEADER_MAJOR -@cvindex MAJOR_IN_MKDEV -@cvindex MAJOR_IN_SYSMACROS -If @file{sys/types.h} does not define @code{major}, @code{minor}, and -@code{makedev}, but @file{sys/mkdev.h} does, define -@code{MAJOR_IN_MKDEV}; otherwise, if @file{sys/sysmacros.h} does, define -@code{MAJOR_IN_SYSMACROS}. -@end defmac - -@defmac AC_HEADER_STDC -@maindex HEADER_STDC -@cvindex STDC_HEADERS -Define @code{STDC_HEADERS} if the system has ANSI C header files. -Specifically, this macro checks for @file{stdlib.h}, @file{stdarg.h}, -@file{string.h}, and @file{float.h}; if the system has those, it -probably has the rest of the ANSI C header files. This macro also -checks whether @file{string.h} declares @code{memchr} (and thus -presumably the other @code{mem} functions), whether @file{stdlib.h} -declare @code{free} (and thus presumably @code{malloc} and other related -functions), and whether the @file{ctype.h} macros work on characters -with the high bit set, as ANSI C requires. - -Use @code{STDC_HEADERS} instead of @code{__STDC__} to determine whether -the system has ANSI-compliant header files (and probably C library -functions) because many systems that have GCC do not have ANSI C header -files. - -On systems without ANSI C headers, there is so much variation that it is -probably easier to declare the functions you use than to figure out -exactly what the system header files declare. Some systems contain a -mix of functions ANSI and BSD; some are mostly ANSI but lack -@samp{memmove}; some define the BSD functions as macros in -@file{string.h} or @file{strings.h}; some have only the BSD functions -but @file{string.h}; some declare the memory functions in -@file{memory.h}, some in @file{string.h}; etc. It is probably -sufficient to check for one string function and one memory function; if -the library has the ANSI versions of those then it probably has most of -the others. If you put the following in @file{configure.in}: - -@example -AC_HEADER_STDC -AC_CHECK_FUNCS(strchr memcpy) -@end example - -@noindent -then, in your code, you can put declarations like this: - -@example -@group -#if STDC_HEADERS -# include <string.h> -#else -# ifndef HAVE_STRCHR -# define strchr index -# define strrchr rindex -# endif -char *strchr (), *strrchr (); -# ifndef HAVE_MEMCPY -# define memcpy(d, s, n) bcopy ((s), (d), (n)) -# define memmove(d, s, n) bcopy ((s), (d), (n)) -# endif -#endif -@end group -@end example - -@noindent -If you use a function like @code{memchr}, @code{memset}, @code{strtok}, -or @code{strspn}, which have no BSD equivalent, then macros won't -suffice; you must provide an implementation of each function. An easy -way to incorporate your implementations only when needed (since the ones -in system C libraries may be hand optimized) is to, taking @code{memchr} -for example, put it in @file{memchr.c} and use -@samp{AC_REPLACE_FUNCS(memchr)}. -@end defmac - -@defmac AC_HEADER_SYS_WAIT -@maindex HEADER_SYS_WAIT -@cvindex HAVE_SYS_WAIT_H -If @file{sys/wait.h} exists and is compatible with POSIX.1, define -@code{HAVE_SYS_WAIT_H}. Incompatibility can occur if @file{sys/wait.h} -does not exist, or if it uses the old BSD @code{union wait} instead of -@code{int} to store a status value. If @file{sys/wait.h} is not POSIX.1 -compatible, then instead of including it, define the POSIX.1 macros with -their usual interpretations. Here is an example: - -@example -@group -#include <sys/types.h> -#if HAVE_SYS_WAIT_H -# include <sys/wait.h> -#endif -#ifndef WEXITSTATUS -# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) -#endif -#ifndef WIFEXITED -# define WIFEXITED(stat_val) (((stat_val) & 255) == 0) -#endif -@end group -@end example -@end defmac - -@defmac AC_MEMORY_H -@maindex MEMORY_H -@cvindex NEED_MEMORY_H -Define @code{NEED_MEMORY_H} if @code{memcpy}, @code{memcmp}, etc. are -not declared in @file{string.h} and @file{memory.h} exists. This macro -is obsolete; instead, use @code{AC_CHECK_HEADERS(memory.h)}. See the -example for @code{AC_HEADER_STDC}. -@end defmac - -@defmac AC_UNISTD_H -@maindex UNISTD_H -@cvindex HAVE_UNISTD_H -Define @code{HAVE_UNISTD_H} if the system has @file{unistd.h}. This -macro is obsolete; instead, use @samp{AC_CHECK_HEADERS(unistd.h)}. - -The way to check if the system supports POSIX.1 is: - -@example -@group -#if HAVE_UNISTD_H -# include <sys/types.h> -# include <unistd.h> -#endif - -#ifdef _POSIX_VERSION -/* Code for POSIX.1 systems. */ -#endif -@end group -@end example - -@cvindex _POSIX_VERSION -@code{_POSIX_VERSION} is defined when @file{unistd.h} is included on -POSIX.1 systems. If there is no @file{unistd.h}, it is definitely not a -POSIX.1 system. However, some non-POSIX.1 systems do have @file{unistd.h}. -@end defmac - -@defmac AC_USG -@maindex USG -@cvindex USG -Define @code{USG} if the system does not have @file{strings.h}, -@code{rindex}, @code{bzero}, etc. This implies that it has -@file{string.h}, @code{strrchr}, @code{memset}, etc. - -The symbol @code{USG} is obsolete. Instead of this macro, see the -example for @code{AC_HEADER_STDC}. -@end defmac - -@node Generic Headers, , Particular Headers, Header Files -@subsection Generic Header Checks - -These macros are used to find system header files not covered by the -particular test macros. If you need to check the contents of a header -as well as find out whether it is present, you have to write your own -test for it (@pxref{Writing Tests}). - -@defmac AC_CHECK_HEADER (@var{header-file}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex CHECK_HEADER -If the system header file @var{header-file} exists, execute shell commands -@var{action-if-found}, otherwise execute @var{action-if-not-found}. If -you just want to define a symbol if the header file is available, -consider using @code{AC_CHECK_HEADERS} instead. -@end defmac - -@defmac AC_CHECK_HEADERS (@var{header-file}@dots{} @r{[}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]]}) -@maindex CHECK_HEADERS -@cvindex HAVE_@var{header} -For each given system header file @var{header-file} in the -whitespace-separated argument list that exists, define -@code{HAVE_@var{header-file}} (in all capitals). If @var{action-if-found} -is given, it is additional shell code to execute when one of the header -files is found. You can give it a value of @samp{break} to break out of -the loop on the first match. If @var{action-if-not-found} is given, it -is executed when one of the header files is not found. -@end defmac - -@node Structures, Typedefs, Header Files, Existing Tests -@section Structures - -The following macros check for certain structures or structure members. -To check structures not listed here, use @code{AC_EGREP_CPP} -(@pxref{Examining Declarations}) or @code{AC_TRY_COMPILE} -(@pxref{Examining Syntax}). - -@defmac AC_HEADER_STAT -@maindex HEADER_STAT -@maindex STAT_MACROS_BROKEN -If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in -@file{sys/stat.h} do not work properly (returning false positives), -define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV, -Amdahl UTS and Motorola System V/88. -@end defmac - -@defmac AC_HEADER_TIME -@maindex HEADER_TIME -@cvindex TIME_WITH_SYS_TIME -If a program may include both @file{time.h} and @file{sys/time.h}, -define @code{TIME_WITH_SYS_TIME}. On some older systems, -@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not -protected against multiple inclusion, so programs should not explicitly -include both files. This macro is useful in programs that use, for -example, @code{struct timeval} or @code{struct timezone} as well as -@code{struct tm}. It is best used in conjunction with -@code{HAVE_SYS_TIME_H}, which can be checked for using -@code{AC_CHECK_HEADERS(sys/time.h)}. - -@example -@group -#if TIME_WITH_SYS_TIME -# include <sys/time.h> -# include <time.h> -#else -# if HAVE_SYS_TIME_H -# include <sys/time.h> -# else -# include <time.h> -# endif -#endif -@end group -@end example -@end defmac - -@defmac AC_STRUCT_ST_BLKSIZE -@maindex STRUCT_ST_BLKSIZE -@cvindex HAVE_ST_BLKSIZE -If @code{struct stat} contains an @code{st_blksize} member, define -@code{HAVE_ST_BLKSIZE}. -@end defmac - -@defmac AC_STRUCT_ST_BLOCKS -@maindex STRUCT_ST_BLOCKS -@cvindex HAVE_ST_BLOCKS -@ovindex LIBOBJS -If @code{struct stat} contains an @code{st_blocks} member, define -@code{HAVE_ST_BLOCKS}. Otherwise, add @samp{fileblocks.o} to the -output variable @code{LIBOBJS}. -@end defmac - -@defmac AC_STRUCT_ST_RDEV -@maindex STRUCT_ST_RDEV -@cvindex HAVE_ST_RDEV -If @code{struct stat} contains an @code{st_rdev} member, define -@code{HAVE_ST_RDEV}. -@end defmac - -@defmac AC_STRUCT_TM -@maindex STRUCT_TM -@cvindex TM_IN_SYS_TIME -If @file{time.h} does not define @code{struct tm}, define -@code{TM_IN_SYS_TIME}, which means that including @file{sys/time.h} -had better define @code{struct tm}. -@end defmac - -@defmac AC_STRUCT_TIMEZONE -@maindex STRUCT_TIMEZONE -@cvindex HAVE_TM_ZONE -@cvindex HAVE_TZNAME -Figure out how to get the current timezone. If @code{struct tm} has a -@code{tm_zone} member, define @code{HAVE_TM_ZONE}. Otherwise, if the -external array @code{tzname} is found, define @code{HAVE_TZNAME}. -@end defmac - -@node Typedefs, Compiler Characteristics, Structures, Existing Tests -@section Typedefs - -The following macros check for C typedefs. If there is no macro -specifically defined to check for a typedef you need, and you don't need -to check for any special properties of it, then you can use a general -typedef check macro. - -@menu -* Particular Typedefs:: Special handling to find certain types. -* Generic Typedefs:: How to find other types. -@end menu - -@node Particular Typedefs, Generic Typedefs, , Typedefs -@subsection Particular Typedef Checks - -These macros check for particular C typedefs in @file{sys/types.h} and -@file{stdlib.h} (if it exists). - -@defmac AC_TYPE_GETGROUPS -@maindex TYPE_GETGROUPS -@cvindex GETGROUPS_T -Define @code{GETGROUPS_T} to be whichever of @code{gid_t} or @code{int} -is the base type of the array argument to @code{getgroups}. -@end defmac - -@defmac AC_TYPE_MODE_T -@maindex TYPE_MODE_T -@cvindex mode_t -If @code{mode_t} is not defined, define @code{mode_t} to be @code{int}. -@end defmac - -@defmac AC_TYPE_OFF_T -@maindex TYPE_OFF_T -@cvindex off_t -If @code{off_t} is not defined, define @code{off_t} to be @code{long}. -@end defmac - -@defmac AC_TYPE_PID_T -@maindex TYPE_PID_T -@cvindex pid_t -If @code{pid_t} is not defined, define @code{pid_t} to be @code{int}. -@end defmac - -@defmac AC_TYPE_SIGNAL -@maindex TYPE_SIGNAL -@cvindex RETSIGTYPE -If @file{signal.h} declares @code{signal} as returning a pointer to a -function returning @code{void}, define @code{RETSIGTYPE} to be -@code{void}; otherwise, define it to be @code{int}. - -Define signal handlers as returning type @code{RETSIGTYPE}: - -@example -@group -RETSIGTYPE -hup_handler () -@{ -@dots{} -@} -@end group -@end example -@end defmac - -@defmac AC_TYPE_SIZE_T -@maindex TYPE_SIZE_T -@cvindex size_t -If @code{size_t} is not defined, define @code{size_t} to be -@code{unsigned}. -@end defmac - -@defmac AC_TYPE_UID_T -@maindex TYPE_UID_T -@cvindex uid_t -@cvindex gid_t -If @code{uid_t} is not defined, define @code{uid_t} to be @code{int} and -@code{gid_t} to be @code{int}. -@end defmac - -@node Generic Typedefs, , Particular Typedefs, Typedefs -@subsection Generic Typedef Checks - -This macro is used to check for typedefs not covered by the particular -test macros. - -@defmac AC_CHECK_TYPE (@var{type}, @var{default}) -@maindex CHECK_TYPE -If the type @var{type} is not defined in @file{sys/types.h} or -@file{stdlib.h} (if it exists), define it to be the C (or C++) -builtin type @var{default}; e.g., @samp{short} or @samp{unsigned}. -@end defmac - -@node Compiler Characteristics, System Services, Typedefs, Existing Tests -@section Compiler Characteristics - -The following macros check for C compiler or machine architecture -features. To check for characteristics not listed here, use -@code{AC_TRY_COMPILE} (@pxref{Examining Syntax}) or @code{AC_TRY_RUN} -(@pxref{Run Time}) - -@defmac AC_C_BIGENDIAN -@maindex C_BIGENDIAN -@cvindex WORDS_BIGENDIAN -If words are stored with the most significant byte first (like Motorola -and SPARC, but not Intel and VAX, CPUs), define @code{WORDS_BIGENDIAN}. -@end defmac - -@defmac AC_C_CONST -@maindex C_CONST -@cvindex const -If the C compiler does not fully support the keyword @code{const}, -define @code{const} to be empty. Some C compilers that do not define -@code{__STDC__} do support @code{const}; some compilers that define -@code{__STDC__} do not completely support @code{const}. Programs can -simply use @code{const} as if every C compiler supported it; for those -that don't, the @file{Makefile} or configuration header file will define -it as empty. -@end defmac - -@defmac AC_C_INLINE -@maindex C_INLINE -@cvindex inline -If the C compiler is a version of GCC that supports the keyword -@code{__inline} but not @code{inline} (such as some NeXT versions), -define @code{inline} to be @code{__inline}. -@end defmac - -@defmac AC_C_CHAR_UNSIGNED -@maindex C_CHAR_UNSIGNED -@cvindex __CHAR_UNSIGNED__ -If the C type @code{char} is unsigned, define @code{__CHAR_UNSIGNED__}, -unless the C compiler predefines it. -@end defmac - -@defmac AC_C_LONG_DOUBLE -@maindex C_LONG_DOUBLE -@cvindex HAVE_LONG_DOUBLE -If the C compiler supports the @code{long double} type, define -@code{HAVE_LONG_DOUBLE}. Some C compilers that do not define -@code{__STDC__} do support the @code{long double} type; some compilers -that define @code{__STDC__} do not support @code{long double}. -@end defmac - -@defmac AC_CHECK_SIZEOF (@var{type}) -@maindex CHECK_SIZEOF -Define @code{SIZEOF_@var{uctype}} to be the size in bytes of the C (or -C++) builtin type @var{type}, e.g. @samp{int} or @samp{char *}. If -@samp{type} is unknown to the compiler, it gets a size of 0. @var{uctype} -is @var{type}, with lowercase converted to uppercase, spaces changed to -underscores, and asterisks changed to @samp{P}. For example, the call -@example -AC_CHECK_SIZEOF(int *) -@end example -@noindent -defines @code{SIZEOF_INT_P} to be 8 on DEC Alpha AXP systems. -@end defmac - -@defmac AC_INT_16_BITS -@maindex INT_16_BITS -@cvindex INT_16_BITS -If the C type @code{int} is 16 bits wide, define @code{INT_16_BITS}. -This macro is obsolete; it is more general to use -@samp{AC_CHECK_SIZEOF(int)} instead. -@end defmac - -@defmac AC_LONG_64_BITS -@maindex LONG_64_BITS -@cvindex LONG_64_BITS -If the C type @code{long int} is 64 bits wide, define -@code{LONG_64_BITS}. This macro is obsolete; it is more general to use -@samp{AC_CHECK_SIZEOF(long)} instead. -@end defmac - -@node System Services, UNIX Variants, Compiler Characteristics, Existing Tests -@section System Services - -The following macros check for operating system services or capabilities. - -@defmac AC_SYS_INTERPRETER -@maindex SYS_INTERPRETER -Check whether the system supports starting scripts with a line of the -form @samp{#!/bin/csh} to select the interpreter to use for the script. -After running this macro, shell code in @code{configure.in} can check -the variable @code{ac_cv_sys_interpreter}; it will be set to @samp{yes} -if the system supports @samp{#!}, @samp{no} if not. -@end defmac - -@defmac AC_PATH_X -@maindex PATH_X -Try to locate the X Window System include files and libraries. If the -user gave the command line options @samp{--x-includes=@var{dir}} and -@samp{--x-libraries=@var{dir}}, use those directories. If either or -both were not given, get the missing values by running @code{xmkmf} on a -trivial @file{Imakefile} and examining the @file{Makefile} that it -produces. If that fails (such as if @code{xmkmf} is not present), look -for them in several directories where they often reside. If either -method is successful, set the shell variables @code{x_includes} and -@code{x_libraries} to their locations, unless they are in directories -the compiler searches by default. - -If both methods fail, or the user gave the command line option -@samp{--without-x}, set the shell variable @code{no_x} to @samp{yes}; -otherwise set it to the empty string. -@end defmac - -@defmac AC_PATH_XTRA -@maindex PATH_XTRA -@ovindex X_CFLAGS -@ovindex X_LIBS -@ovindex X_EXTRA_LIBS -@ovindex X_PRE_LIBS -An enhanced version of @code{AC_PATH_X}. Add the C compiler flags that -X needs to output variable @code{X_CFLAGS}, and the X linker flags to -@code{X_LIBS}. If X is not available, add @samp{-DX_DISPLAY_MISSING} to -@code{X_CFLAGS}. - -Also check for special libraries that some systems need in order to -compile X programs. Add any that the system needs to output variable -@code{X_EXTRA_LIBS}. And check for special X11R6 libraries that need to -be linked with before @samp{-lX11}, and add any found to the output -variable @code{X_PRE_LIBS}. -@end defmac - -@defmac AC_SYS_LONG_FILE_NAMES -@maindex SYS_LONG_FILE_NAMES -@cvindex HAVE_LONG_FILE_NAMES -If the system supports file names longer than 14 characters, define -@code{HAVE_LONG_FILE_NAMES}. -@end defmac - -@defmac AC_SYS_RESTARTABLE_SYSCALLS -@maindex SYS_RESTARTABLE_SYSCALLS -@cvindex HAVE_RESTARTABLE_SYSCALLS -If the system automatically restarts a system call that is interrupted -by a signal, define @code{HAVE_RESTARTABLE_SYSCALLS}. -@end defmac - -@node UNIX Variants, , System Services, Existing Tests -@section UNIX Variants - -The following macros check for certain operating systems that need -special treatment for some programs, due to exceptional oddities in -their header files or libraries. These macros are warts; they will be -replaced by a more systematic approach, based on the functions they make -available or the environments they provide. - -@defmac AC_AIX -@maindex AIX -@cvindex _ALL_SOURCE -If on AIX, define @code{_ALL_SOURCE}. Allows the use of some BSD -functions. Should be called before any macros that run the C compiler. -@end defmac - -@defmac AC_DYNIX_SEQ -@maindex DYNIX_SEQ -If on Dynix/PTX (Sequent UNIX), add @samp{-lseq} to output -variable @code{LIBS}. This macro is obsolete; instead, use -@code{AC_FUNC_GETMNTENT}. -@end defmac - -@defmac AC_IRIX_SUN -@maindex IRIX_SUN -If on IRIX (Silicon Graphics UNIX), add @samp{-lsun} to output variable -@code{LIBS}. This macro is obsolete. If you were using it to get -@code{getmntent}, use @code{AC_FUNC_GETMNTENT} instead. If you used it -for the NIS versions of the password and group functions, use -@samp{AC_CHECK_LIB(sun, getpwnam)}. -@end defmac - -@defmac AC_ISC_POSIX -@maindex ISC_POSIX -@cvindex _POSIX_SOURCE -@ovindex CC -If on a POSIXized ISC UNIX, define @code{_POSIX_SOURCE} and add -@samp{-posix} (for the GNU C compiler) or @samp{-Xp} (for other C -compilers) to output variable @code{CC}. This allows the use of -POSIX facilities. Must be called after @code{AC_PROG_CC} and before -any other macros that run the C compiler. -@end defmac - -@defmac AC_MINIX -@maindex MINIX -@cvindex _MINIX -@cvindex _POSIX_SOURCE -@cvindex _POSIX_1_SOURCE -If on Minix, define @code{_MINIX} and @code{_POSIX_SOURCE} and define -@code{_POSIX_1_SOURCE} to be 2. This allows the use of POSIX -facilities. Should be called before any macros that run the C compiler. -@end defmac - -@defmac AC_SCO_INTL -@maindex SCO_INTL -@ovindex LIBS -If on SCO UNIX, add @samp{-lintl} to output variable @code{LIBS}. -This macro is obsolete; instead, use @code{AC_FUNC_STRFTIME}. -@end defmac - -@defmac AC_XENIX_DIR -@maindex XENIX_DIR -@ovindex LIBS -If on Xenix, add @samp{-lx} to output variable @code{LIBS}. Also, if -@file{dirent.h} is being used, add @samp{-ldir} to @code{LIBS}. This -macro is obsolete; use @code{AC_HEADER_DIRENT} instead. -@end defmac - -@node Writing Tests, Results, Existing Tests, Top -@chapter Writing Tests - -If the existing feature tests don't do something you need, you have to -write new ones. These macros are the building blocks. They provide -ways for other macros to check whether various kinds of features are -available and report the results. - -This chapter contains some suggestions and some of the reasons why the -existing tests are written the way they are. You can also learn a lot -about how to write Autoconf tests by looking at the existing ones. If -something goes wrong in one or more of the Autoconf tests, this -information can help you understand the assumptions behind them, which -might help you figure out how to best solve the problem. - -These macros check the output of the C compiler system. They do -not cache the results of their tests for future use (@pxref{Caching -Results}), because they don't know enough about the information they are -checking for to generate a cache variable name. They also do not print -any messages, for the same reason. The checks for particular kinds of C -features call these macros and do cache their results and print messages -about what they're checking for. - -@menu -* Examining Declarations:: Detecting header files and declarations. -* Examining Syntax:: Detecting language syntax features. -* Examining Libraries:: Detecting functions and global variables. -* Run Time:: Testing for run-time features. -* Portable Shell:: Shell script portability pitfalls. -* Testing Values and Files:: Checking strings and files. -* Multiple Cases:: Tests for several possible values. -* Language Choice:: Selecting which language to use for testing. -@end menu - -@node Examining Declarations, Examining Syntax, , Writing Tests -@section Examining Declarations - -The macro @code{AC_TRY_CPP} is used to check whether particular header -files exist. You can check for one at a time, or more than one if you -need several header files to all exist for some purpose. - -@defmac AC_TRY_CPP (@var{includes}, @var{action-if-true} @r{[}, @var{action-if-false}@r{]}) -@maindex TRY_CPP -@var{includes} is C or C++ @code{#include} statements and declarations, -on which shell variable, backquote, and backslash substitutions are -performed. (Actually, it can be any C program, but other statements are -probably not useful.) If the preprocessor produces no error messages -while processing it, run shell commands @var{action-if-true}. Otherwise -run shell commands @var{action-if-false}. - -This macro uses @code{CPPFLAGS}, but not @code{CFLAGS}, because -@samp{-g}, @samp{-O}, etc. are not valid options to many C -preprocessors. -@end defmac - -Here is now to find out whether a header file contains a particular -declaration, such as a typedef, a structure, a structure member, or a -function. Use @code{AC_EGREP_HEADER} instead of running @code{grep} -directly on the header file; on some systems the symbol might be defined -in another header file that the file you are checking @samp{#include}s. - -@defmac AC_EGREP_HEADER (@var{pattern}, @var{header-file}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex EGREP_HEADER -If the output of running the preprocessor on the system header file -@var{header-file} matches the @code{egrep} regular expression -@var{pattern}, execute shell commands @var{action-if-found}, otherwise -execute @var{action-if-not-found}. -@end defmac - -To check for C preprocessor symbols, either defined by header files or -predefined by the C preprocessor, use @code{AC_EGREP_CPP}. Here is an -example of the latter: - -@example -AC_EGREP_CPP(yes, -[#ifdef _AIX - yes -#endif -], is_aix=yes, is_aix=no) -@end example - -@defmac AC_EGREP_CPP (@var{pattern}, @var{program}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex EGREP_CPP -@var{program} is the text of a C or C++ program, on which shell -variable, backquote, and backslash substitutions are performed. If the -output of running the preprocessor on @var{program} matches the -@code{egrep} regular expression @var{pattern}, execute shell commands -@var{action-if-found}, otherwise execute @var{action-if-not-found}. - -This macro calls @code{AC_PROG_CPP} or @code{AC_PROG_CXXCPP} (depending -on which language is current, @pxref{Language Choice}), if it hasn't -been called already. -@end defmac - -@node Examining Syntax, Examining Libraries, Examining Declarations, Writing Tests -@section Examining Syntax - -To check for a syntax feature of the C or C++ compiler, such as whether -it recognizes a certain keyword, use @code{AC_TRY_COMPILE} to try to -compile a small program that uses that feature. You can also use it to -check for structures and structure members that are not present on all -systems. - -@defmac AC_TRY_COMPILE (@var{includes}, @var{function-body}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex TRY_COMPILE -Create a test C program to see whether a function whose body consists of -@var{function-body} can be compiled; @var{includes} is any -@code{#include} statements needed by the code in @var{function-body}. -If the file compiles successfully, run shell commands -@var{action-if-found}, otherwise run @var{action-if-not-found}. This -macro uses @code{CFLAGS} or @code{CXXFLAGS}, and @code{CPPFLAGS}, when -compiling. It does not try to link; use @code{AC_TRY_LINK} if you need -to do that (@pxref{Examining Libraries}). -@end defmac - -@node Examining Libraries, Run Time, Examining Syntax, Writing Tests -@section Examining Libraries - -To check for a library, a function, or a global variable, Autoconf -@code{configure} scripts try to compile and link a small program that -uses it. This is unlike Metaconfig, which by default uses @code{nm} -or @code{ar} on the C library to try to figure out which functions are -available. Trying to link with the function is usually a more reliable -approach because it avoids dealing with the variations in the options -and output formats of @code{nm} and @code{ar} and in the location of the -standard libraries. It also allows configuring for cross-compilation or -checking a function's runtime behavior if needed. On the other hand, it -can be slower than scanning the libraries once. - -A few systems have linkers that do not return a failure exit status when -there are unresolved functions in the link. This bug makes the -configuration scripts produced by Autoconf unusable on those systems. -However, some of them can be given options that make the exit status -correct. This is a problem that Autoconf does not currently handle -automatically. - -@code{AC_TRY_LINK} is used to compile test programs to test for -functions and global variables. It is also used (by -@code{AC_CHECK_LIB}) to check for libraries, by adding the library being -checked for to @code{LIBS} temporarily and trying to link a small -program. - -@defmac AC_TRY_LINK (@var{includes}, @var{function-body}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex TRY_LINK -Create a test C program to see whether a function whose body consists of -@var{function-body} can be compiled and linked; @var{includes} is any -@code{#include} statements needed by the code in @var{function-body}. -If the file compiles and links successfully, run shell commands -@var{action-if-found}, otherwise run @var{action-if-not-found}. This -macro uses @code{CFLAGS} or @code{CXXFLAGS}, @code{CPPFLAGS}, -@code{LDFLAGS}, and @code{LIBS} when compiling. -@end defmac - -@defmac AC_COMPILE_CHECK (@var{echo-text}, @var{includes}, @var{function-body}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]}) -@maindex COMPILE_CHECK -This is an obsolete version of @code{AC_TRY_LINK}, with the addition that it -prints @samp{checking for @var{echo-text}} to the standard output first, -if @var{echo-text} is non-empty. Use @code{AC_MSG_CHECKING} and -@code{AC_MSG_RESULT} instead to print messages (@pxref{Printing Messages}). -@end defmac - -@node Run Time, Portable Shell, Examining Libraries, Writing Tests -@section Checking Run Time Behavior - -Sometimes you need to find out how a system performs at run time, such -as whether a given function has a certain capability or bug. If you -can, make such checks when your program runs instead of when it is -configured. You can check for things like the machine's endianness when -your program initializes itself. - -If you really need to test for a run-time behavior while configuring, -you can write a test program to determine the result, and compile and -run it using @code{AC_TRY_RUN}. Avoid running test programs if -possible, because using them prevents people from configuring your -package for cross-compiling. - -@menu -* Test Programs:: Running test programs. -* Guidelines:: General rules for writing test programs. -* Test Functions:: Avoiding pitfalls in test programs. -@end menu - -@node Test Programs, Guidelines, , Run Time -@subsection Running Test Programs - -Use the following macro if you need to test run-time behavior of the -system while configuring. - -@defmac AC_TRY_RUN (@var{program}, @var{action-if-true} @r{[}, @var{action-if-false} @r{[}, @var{action-if-cross-compiling}@r{]]}) -@maindex TRY_RUN -@var{program} is the text of a C program, on which shell variable and -backquote substitutions are performed. If it compiles and links -successfully and returns an exit status of 0 when executed, run shell -commands @var{action-if-true}. Otherwise run shell commands -@var{action-if-false}; the exit status of the program is available in -the shell variable @samp{$?}. This macro uses @code{CFLAGS} or -@code{CXXFLAGS}, @code{CPPFLAGS}, @code{LDFLAGS}, and @code{LIBS} when -compiling. - -If the C compiler being used does not produce executables that run on -the system where @code{configure} is being run, then the test program is -not run. If the optional shell commands @var{action-if-cross-compiling} -are given, they are run instead and this macro calls @code{AC_C_CROSS} -if it has not already been called. Otherwise, @code{configure} prints -an error message and exits. -@end defmac - -Try to provide a pessimistic default value to use when cross-compiling -makes run-time tests impossible. You do this by passing the optional -last argument to @code{AC_TRY_RUN}. @code{autoconf} prints a warning -message when creating @code{configure} each time it encounters a call to -@code{AC_TRY_RUN} with no @var{action-if-cross-compiling} argument -given. You may ignore the warning, though users will not be able to -configure your package for cross-compiling. A few of the macros -distributed with Autoconf produce this warning message. - -To configure for cross-compiling you can also choose a value for those -parameters based on the canonical system name (@pxref{Manual -Configuration}). Alternatively, set up a test results cache file with -the correct values for the target system (@pxref{Caching Results}). - -To provide a default for calls of @code{AC_TRY_RUN} that are embedded in -other macros, including a few of the ones that come with Autoconf, you -can call @code{AC_C_CROSS} before running them. Then, if the shell -variable @code{cross_compiling} is set to @samp{yes}, use an alternate -method to get the results instead of calling the macros. - -@defmac AC_C_CROSS -@maindex C_CROSS -If the C compiler being used does not produce executables that can run -on the system where @code{configure} is being run, set the shell -variable @code{cross_compiling} to @samp{yes}, otherwise @samp{no}. -@end defmac - -@node Guidelines, Test Functions, Test Programs, Run Time -@subsection Guidelines for Test Programs - -Test programs should not write anything to the standard output. They -should return 0 if the test succeeds, nonzero otherwise, so that success -can be distinguished easily from a core dump or other failure; -segmentation violations and other failures produce a nonzero exit -status. Test programs should @code{exit}, not @code{return}, from -@code{main}, because on some systems (old Suns, at least) the argument -to @code{return} in @code{main} is ignored. - -Test programs can use @code{#if} or @code{#ifdef} to check the values of -preprocessor macros defined by tests that have already run. For -example, if you call @code{AC_HEADER_STDC}, then later on in -@file{configure.in} you can have a test program that includes an ANSI C -header file conditionally: - -@example -@group -#if STDC_HEADERS -# include <stdlib.h> -#endif -@end group -@end example - -If a test program needs to use or create a data file, give it a name -that starts with @file{conftest}, such as @file{conftestdata}. The -@code{configure} script cleans up by running @samp{rm -rf conftest*} -after running test programs and if the script is interrupted. - -@node Test Functions, , Guidelines, Run Time -@subsection Test Functions - -Function declarations in test programs should have a prototype -conditionalized for C++. In practice, though, test programs rarely need -functions that take arguments. - -@example -#ifdef __cplusplus -foo(int i) -#else -foo(i) int i; -#endif -@end example - -Functions that test programs declare should also be conditionalized for -C++, which requires @samp{extern "C"} prototypes. Make sure to not -include any header files containing clashing prototypes. - -@example -#ifdef __cplusplus -extern "C" void *malloc(size_t); -#else -char *malloc(); -#endif -@end example - -If a test program calls a function with invalid parameters (just to see -whether it exists), organize the program to ensure that it never invokes -that function. You can do this by calling it in another function that is -never invoked. You can't do it by putting it after a call to -@code{exit}, because GCC version 2 knows that @code{exit} never returns -and optimizes out any code that follows it in the same block. - -If you include any header files, make sure to call the functions -relevant to them with the correct number of arguments, even if they are -just 0, to avoid compilation errors due to prototypes. GCC version 2 -has internal prototypes for several functions that it automatically -inlines; for example, @code{memcpy}. To avoid errors when checking for -them, either pass them the correct number of arguments or redeclare them -with a different return type (such as @code{char}). - -@node Portable Shell, Testing Values and Files, Run Time, Writing Tests -@section Portable Shell Programming - -When writing your own checks, there are some shell script programming -techniques you should avoid in order to make your code portable. The -Bourne shell and upward-compatible shells like Bash and the Korn shell -have evolved over the years, but to prevent trouble, do not take -advantage of features that were added after UNIX version 7, circa 1977. -You should not use shell functions, aliases, negated character classes, -or other features that are not found in all Bourne-compatible shells; -restrict yourself to the lowest common denominator. Even @code{unset} -is not supported by all shells! - -The set of external programs you should run in a @code{configure} script -is fairly small. @xref{Utilities in Makefiles, , Utilities in -Makefiles, standards.info, GNU Coding Standards}, for the list. This -restriction allows users to start out with a fairly small set of -programs and build the rest, avoiding too many interdependencies between -packages. - -Some of these external utilities have a portable subset of features, as -well; for example, don't rely on @code{ln} having a @samp{-f} option or -@code{cat} having any options. @code{sed} scripts should not contain -comments or use branch labels longer than 8 characters. Don't use -@samp{grep -s} to suppress output, because @samp{grep -s} on System V -does not suppress output, only error messages. Instead, redirect the -standard output and standard error (in case the file doesn't exist) of -@code{grep} to @file{/dev/null}. Check the exit status of @code{grep} -to determine whether it found a match. - -@node Testing Values and Files, Multiple Cases, Portable Shell, Writing Tests -@section Testing Values and Files - -@code{configure} scripts need to test properties of many files and -strings. Here are some portability problems to watch out for when doing -those tests. - -The @code{test} program is the way to perform many file and string -tests. It is often invoked by the alternate name @samp{[}, but using -that name in Autoconf code is asking for trouble since it is an -@code{m4} quote character. - -If you need to make multiple checks using @code{test}, combine -them with the shell operators @samp{&&} and @samp{||} instead of using -the @code{test} operators @samp{-a} and @samp{-o}. On System V, the -precedence of @samp{-a} and @samp{-o} is wrong relative to the unary -operators; consequently, POSIX does not specify them, so using them is -nonportable. If you combine @samp{&&} and @samp{||} in the same -statement, keep in mind that they have equal precedence. - -To enable @code{configure} scripts to support cross-compilation, they -shouldn't do anything that tests features of the host system instead of -the target system. But occasionally you may find it necessary to check -whether some arbitrary file exists. To do so, use @samp{test -f} or -@samp{test -r}. Do not use @samp{test -x}, because 4.3BSD does not have -it. - -Another nonportable shell programming construction is -@example -@var{var}=$@{@var{var}:-@var{value}@} -@end example -@noindent -The intent is to set @var{var} to @var{value} only if it is not already -set, but if @var{var} has any value, even the empty string, to leave it -alone. Old BSD shells, including the Ultrix @code{sh}, don't accept -the colon, and complain and die. A portable equivalent is -@example -: $@{@var{var}=@var{value}@} -@end example - -@node Multiple Cases, Language Choice, Testing Values and Files, Writing Tests -@section Multiple Cases - -Some operations are accomplished in several possible ways, depending on -the UNIX variant. Checking for them essentially requires a ``case -statement''. Autoconf does not directly provide one; however, it is -easy to simulate by using a shell variable to keep track of whether a -way to perform the operation has been found yet. - -Here is an example that uses the shell variable @code{fstype} to keep -track of whether the remaining cases need to be checked. - -@example -@group -AC_MSG_CHECKING(how to get filesystem type) -fstype=no -# The order of these tests is important. -AC_TRY_CPP([#include <sys/statvfs.h> -#include <sys/fstyp.h>], AC_DEFINE(FSTYPE_STATVFS) fstype=SVR4) -if test $fstype = no; then -AC_TRY_CPP([#include <sys/statfs.h> -#include <sys/fstyp.h>], AC_DEFINE(FSTYPE_USG_STATFS) fstype=SVR3) -fi -if test $fstype = no; then -AC_TRY_CPP([#include <sys/statfs.h> -#include <sys/vmount.h>], AC_DEFINE(FSTYPE_AIX_STATFS) fstype=AIX) -fi -# (more cases omitted here) -AC_MSG_RESULT($fstype) -@end group -@end example - -@node Language Choice, , Multiple Cases, Writing Tests -@section Language Choice - -Packages that use both C and C++ need to test features of both -compilers. Autoconf-generated @code{configure} scripts check for C -features by default. The following macros determine which language's -compiler is used in tests that follow in @file{configure.in}. - -@defmac AC_LANG_C -@maindex LANG_C -Do compilation tests using @code{CC} and @code{CPP} and use extension -@file{.c} for test programs. -@end defmac - -@defmac AC_LANG_CPLUSPLUS -@maindex LANG_CPLUSPLUS -Do compilation tests using @code{CXX} and @code{CXXCPP} and use -extension @file{.C} for test programs. -@end defmac - -@defmac AC_LANG_SAVE -@maindex LANG_SAVE -Remember the current language (as set by @code{AC_LANG_C} or -@code{AC_LANG_CPLUSPLUS}) on a stack. Does not change which language is -current. Use this macro and @code{AC_LANG_RESTORE} in macros that need -to temporarily switch to a particular language. -@end defmac - -@defmac AC_LANG_RESTORE -@maindex LANG_RESTORE -Select the language that is saved on the top of the stack, as set by -@code{AC_LANG_SAVE}, and remove it from the stack. This macro is -equivalent to either @code{AC_LANG_C} or @code{AC_LANG_CPLUSPLUS}, -whichever had been run most recently when @code{AC_LANG_SAVE} was last -called. - -Do not call this macro more times than @code{AC_LANG_SAVE}. -@end defmac - -@defmac AC_REQUIRE_CPP -@maindex REQUIRE_CPP -Ensure that whichever preprocessor would currently be used for tests has -been found. Calls @code{AC_REQUIRE} (@pxref{Prerequisite Macros}) with an -argument of either @code{AC_PROG_CPP} or @code{AC_PROG_CXXCPP}, -depending on which language is current. -@end defmac - -@node Results, Writing Macros, Writing Tests, Top -@chapter Results of Tests - -Once @code{configure} has determined whether a feature exists, what can -it do to record that information? There are four sorts of things it can -do: define a C preprocessor symbol, set a variable in the output files, -save the result in a cache file for future @code{configure} runs, and -print a message letting the user know the result of the test. - -@menu -* Defining Symbols:: Defining C preprocessor symbols. -* Setting Output Variables:: Replacing variables in output files. -* Caching Results:: Speeding up subsequent @code{configure} runs. -* Printing Messages:: Notifying users of progress or problems. -@end menu - -@node Defining Symbols, Setting Output Variables, , Results -@section Defining C Preprocessor Symbols - -A common action to take in response to a feature test is to define a C -preprocessor symbol indicating the results of the test. That is done by -calling @code{AC_DEFINE} or @code{AC_DEFINE_UNQUOTED}. - -By default, @code{AC_OUTPUT} places the symbols defined by these macros -into the output variable @code{DEFS}, which contains an option -@samp{-D@var{symbol}=@var{value}} for each symbol defined. Unlike in -Autoconf version 1, there is no variable @code{DEFS} defined while -@code{configure} is running. To check whether Autoconf macros have -already defined a certain C preprocessor symbol, test the value of the -appropriate cache variable, as in this example: - -@example -AC_CHECK_FUNC(vprintf, AC_DEFINE(HAVE_VPRINTF)) -if test "$ac_cv_func_vprintf" != yes; then -AC_CHECK_FUNC(_doprnt, AC_DEFINE(HAVE_DOPRNT)) -fi -@end example - -If @code{AC_CONFIG_HEADER} has been called, then instead of creating -@code{DEFS}, @code{AC_OUTPUT} creates a header file by substituting the -correct values into @code{#define} statements in a template file. -@xref{Configuration Headers}, for more information about this kind of -output. - -@defmac AC_DEFINE (@var{variable} @r{[}, @var{value}@r{]}) -@maindex DEFINE -Define C preprocessor variable @var{variable}. If @var{value} is given, -set @var{variable} to that value (verbatim), otherwise set it to 1. -@var{value} should not contain literal newlines, and if you are not -using @code{AC_CONFIG_HEADER} it should not contain any @samp{#} -characters, as @code{make} tends to eat them. To use a shell variable -(which you need to do in order to define a value containing the -@code{m4} quote characters @samp{[} or @samp{]}), use -@code{AC_DEFINE_UNQUOTED} instead. The following example defines the C -preprocessor variable @code{EQUATION} to be the string constant -@samp{"$a > $b"}: - -@example -AC_DEFINE(EQUATION, "$a > $b") -@end example -@end defmac - -@defmac AC_DEFINE_UNQUOTED (@var{variable} @r{[}, @var{value}@r{]}) -@maindex DEFINE_UNQUOTED -Like @code{AC_DEFINE}, but three shell expansions are -performed---once---on @var{variable} and @var{value}: variable expansion -(@samp{$}), command substitution (@samp{`}), and backslash escaping -(@samp{\}). Single and double quote characters in the value have no -special meaning. Use this macro instead of @code{AC_DEFINE} when -@var{variable} or @var{value} is a shell variable. Examples: - -@example -AC_DEFINE_UNQUOTED(config_machfile, "$@{machfile@}") -AC_DEFINE_UNQUOTED(GETGROUPS_T, $ac_cv_type_getgroups) -AC_DEFINE_UNQUOTED($@{ac_tr_hdr@}) -@end example -@end defmac - -Due to the syntactical bizarreness of the Bourne shell, do not use -semicolons to separate @code{AC_DEFINE} or @code{AC_DEFINE_UNQUOTED} -calls from other macro calls or shell code; that can cause syntax errors -in the resulting @code{configure} script. Use either spaces or -newlines. That is, do this: - -@example -AC_CHECK_HEADER(elf.h, AC_DEFINE(SVR4) LIBS="$LIBS -lelf") -@end example - -@noindent -or this: - -@example -AC_CHECK_HEADER(elf.h, - AC_DEFINE(SVR4) - LIBS="$LIBS -lelf") -@end example - -@noindent -instead of this: - -@example -AC_CHECK_HEADER(elf.h, AC_DEFINE(SVR4); LIBS="$LIBS -lelf") -@end example - -@node Setting Output Variables, Caching Results, Defining Symbols, Results -@section Setting Output Variables - -One way to record the results of tests is to set @dfn{output variables}, -which are shell variables whose values are substituted into files that -@code{configure} outputs. The two macros below create new output -variables. @xref{Preset Output Variables}, for a list of output -variables that are always available. - -@defmac AC_SUBST (@var{variable}) -@maindex SUBST -Create an output variable from a shell variable. Make @code{AC_OUTPUT} -substitute the variable @var{variable} into output files (typically one -or more @file{Makefile}s). This means that @code{AC_OUTPUT} will -replace instances of @samp{@@@var{variable}@@} in input files with the -value that the shell variable @var{variable} has when @code{AC_OUTPUT} -is called. The value of @var{variable} should not contain literal -newlines. -@end defmac - -@defmac AC_SUBST_FILE (@var{variable}) -@maindex SUBST_FILE -Another way to create an output variable from a shell variable. Make -@code{AC_OUTPUT} insert (without substitutions) the contents of the file -named by shell variable @var{variable} into output files. This means -that @code{AC_OUTPUT} will replace instances of -@samp{@@@var{variable}@@} in output files (such as @file{Makefile.in}) -with the contents of the file that the shell variable @var{variable} -names when @code{AC_OUTPUT} is called. Set the variable to -@file{/dev/null} for cases that do not have a file to insert. - -This macro is useful for inserting @file{Makefile} fragments containing -special dependencies or other @code{make} directives for particular host -or target types into @file{Makefile}s. For example, @file{configure.in} -could contain: - -@example -AC_SUBST_FILE(host_frag)dnl -host_frag=$srcdir/conf/sun4.mh -@end example - -@noindent -and then a @file{Makefile.in} could contain: - -@example -@@host_frag@@ -@end example -@end defmac - -@node Caching Results, Printing Messages, Setting Output Variables, Results -@section Caching Results - -To avoid checking for the same features repeatedly in various -@code{configure} scripts (or repeated runs of one script), -@code{configure} saves the results of many of its checks in a @dfn{cache -file}. If, when a @code{configure} script runs, it finds a cache file, -it reads from it the results from previous runs and avoids rerunning -those checks. As a result, @code{configure} can run much faster than if -it had to perform all of the checks every time. - -@defmac AC_CACHE_VAL (@var{cache-id}, @var{commands-to-set-it}) -@maindex CACHE_VAL -Ensure that the results of the check identified by @var{cache-id} are -available. If the results of the check were in the cache file that was -read, and @code{configure} was not given the @samp{--quiet} or -@samp{--silent} option, print a message saying that the result was -cached; otherwise, run the shell commands @var{commands-to-set-it}. -Those commands should have no side effects except for setting the -variable @var{cache-id}. In particular, they should not call -@code{AC_DEFINE}; the code that follows the call to @code{AC_CACHE_VAL} -should do that, based on the cached value. Also, they should not print -any messages, for example with @code{AC_MSG_CHECKING}; do that before -calling @code{AC_CACHE_VAL}, so the messages are printed regardless of -whether the results of the check are retrieved from the cache or -determined by running the shell commands. If the shell commands are run -to determine the value, the value will be saved in the cache file just -before @code{configure} creates its output files. @xref{Cache -Variable Names}, for how to choose the name of the @var{cache-id} variable. -@end defmac - -@menu -* Cache Variable Names:: Shell variables used in caches. -* Cache Files:: Files @code{configure} uses for caching. -@end menu - -@node Cache Variable Names, Cache Files, , Caching Results -@subsection Cache Variable Names - -The names of cache variables should have the following format: - -@example -@var{package-prefix}_cv_@var{value-type}_@var{specific-value}@r{[}_@var{additional-options}@r{]} -@end example - -@noindent -for example, @samp{ac_cv_header_stat_broken} or -@samp{ac_cv_prog_gcc_traditional}. The parts of the variable name are: - -@table @asis -@item @var{package-prefix} -An abbreviation for your package or organization; the same prefix you -begin local Autoconf macros with, except lowercase by convention. -For cache values used by the distributed Autoconf macros, this value is -@samp{ac}. - -@item @code{_cv_} -Indicates that this shell variable is a cache value. - -@item @var{value-type} -A convention for classifying cache values, to produce a rational naming -system. The values used in Autoconf are listed in @ref{Macro Names}. - -@item @var{specific-value} -Which member of the class of cache values this test applies to. -For example, which function (@samp{alloca}), program (@samp{gcc}), or -output variable (@samp{INSTALL}). - -@item @var{additional-options} -Any particular behavior of the specific member that this test applies to. -For example, @samp{broken} or @samp{set}. This part of the name may -be omitted if it does not apply. -@end table - -Like their names, the values that may be assigned to cache variables -have a few restrictions. The values may not contain single quotes or -curly braces. Usually, their values will be boolean (@samp{yes} or -@samp{no}) or the names of files or functions; so this is not an -important restriction. - -@node Cache Files, , Cache Variable Names, Caching Results -@subsection Cache Files - -A cache file is a shell script that caches the results of configure -tests run on one system so they can be shared between configure scripts -and configure runs. It is not useful on other systems. If its contents -are invalid for some reason, the user may delete or edit it. - -By default, configure uses @file{./config.cache} as the cache file, -creating it if it does not exist already. @code{configure} accepts the -@samp{--cache-file=@var{file}} option to use a different cache file; -that is what @code{configure} does when it calls @code{configure} -scripts in subdirectories, so they share the cache. Giving -@samp{--cache-file=/dev/null} disables caching, for debugging -@code{configure}. @xref{Subdirectories}, for information on configuring -subdirectories with the @code{AC_CONFIG_SUBDIRS} macro. -@file{config.status} only pays attention to the cache file if it is -given the @samp{--recheck} option, which makes it rerun -@code{configure}. - -It is wrong to try to distribute cache files for particular system types. -There is too much room for error in doing that, and too much -administrative overhead in maintaining them. For any features that -can't be guessed automatically, use the standard method of the canonical -system type and linking files (@pxref{Manual Configuration}). - -The cache file on a particular system will gradually accumulate whenever -someone runs a @code{configure} script; it will be initially -nonexistent. Running @code{configure} merges the new cache results with -the existing cache file. The site initialization script can specify a -site-wide cache file to use instead of the default, to make it work -transparently, as long as the same C compiler is used every time -(@pxref{Site Defaults}). - -@node Printing Messages, , Caching Results, Results -@section Printing Messages - -@code{configure} scripts need to give users running them several kinds -of information. The following macros print messages in ways appropriate -for each kind. The arguments to all of them get enclosed in shell -double quotes, so the shell performs variable and backquote substitution -on them. - -These macros are all wrappers around the @code{echo} shell command. -@code{configure} scripts should rarely need to run @code{echo} directly -to print messages for the user. Using these macros makes it easy to -change how and when each kind of message is printed; such changes need -only be made to the macro definitions, and all of the callers change -automatically. - -@defmac AC_MSG_CHECKING (@var{feature-description}) -@maindex MSG_CHECKING -Notify the user that @code{configure} is checking for a particular -feature. This macro prints a message that starts with @samp{checking } -and ends with @samp{...} and no newline. It must be followed by a call -to @code{AC_MSG_RESULT} to print the result of the check and the -newline. The @var{feature-description} should be something like -@samp{whether the Fortran compiler accepts C++ comments} or @samp{for -c89}. - -This macro prints nothing if @code{configure} is run with the -@samp{--quiet} or @samp{--silent} option. -@end defmac - -@defmac AC_MSG_RESULT (@var{result-description}) -@maindex MSG_RESULT -Notify the user of the results of a check. @var{result-description} is -almost always the value of the cache variable for the check, typically -@samp{yes}, @samp{no}, or a file name. This macro should follow a call -to @code{AC_MSG_CHECKING}, and the @var{result-description} should be -the completion of the message printed by the call to -@code{AC_MSG_CHECKING}. - -This macro prints nothing if @code{configure} is run with the -@samp{--quiet} or @samp{--silent} option. -@end defmac - -@defmac AC_MSG_ERROR (@var{error-description}) -@maindex MSG_ERROR -Notify the user of an error that prevents @code{configure} from -completing. This macro prints an error message on the standard error -stream and exits @code{configure} with a nonzero status. -@var{error-description} should be something like @samp{invalid value -$HOME for \$HOME}. -@end defmac - -@defmac AC_MSG_WARN (@var{problem-description}) -@maindex MSG_WARN -Notify the @code{configure} user of a possible problem. This macro -prints the message on the standard error stream; @code{configure} -continues running afterward, so macros that call @code{AC_MSG_WARN} should -provide a default (back-up) behavior for the situations they warn about. -@var{problem-description} should be something like @samp{ln -s seems to -make hard links}. -@end defmac - -The following two macros are an obsolete alternative to -@code{AC_MSG_CHECKING} and @code{AC_MSG_RESULT}. - -@defmac AC_CHECKING (@var{feature-description}) -@maindex CHECKING -This macro is similar to @code{AC_MSG_CHECKING}, except that it prints a -newline after the @var{feature-description}. It is useful mainly to -print a general description of the overall purpose of a group of feature -checks, e.g., - -@example -AC_CHECKING(if stack overflow is detectable) -@end example -@end defmac - -@defmac AC_VERBOSE (@var{result-description}) -@maindex VERBOSE -This macro is similar to @code{AC_MSG_RESULT}, except that it is meant -to follow a call to @code{AC_CHECKING} instead of -@code{AC_MSG_CHECKING}; it starts the message it prints with a tab. It -is considered obsolete. -@end defmac - -@node Writing Macros, Manual Configuration, Results, Top -@chapter Writing Macros - -When you write a feature test that could be applicable to more than one -software package, the best thing to do is encapsulate it in a new macro. -Here are some instructions and guidelines for writing Autoconf macros. - -@menu -* Macro Definitions:: Basic format of an Autoconf macro. -* Macro Names:: What to call your new macros. -* Quoting:: Protecting macros from unwanted expansion. -* Dependencies Between Macros:: What to do when macros depend on other macros. -@end menu - -@node Macro Definitions, Macro Names, , Writing Macros -@section Macro Definitions - -@maindex DEFUN -Autoconf macros are defined using the @code{AC_DEFUN} macro, which is -similar to the @code{m4} builtin @code{define} macro. In addition to -defining a macro, @code{AC_DEFUN} adds to it some code which is used to -constrain the order in which macros are called (@pxref{Prerequisite -Macros}). - -An Autoconf macro definition looks like this: - -@example -AC_DEFUN(@var{macro-name}, [@var{macro-body}]) -@end example - -@noindent -The square brackets here do not indicate optional text: they should -literally be present in the macro definition to avoid macro expansion -problems (@pxref{Quoting}). You can refer to any arguments passed to -the macro as @samp{$1}, @samp{$2}, etc. - -To introduce comments in @code{m4}, use the @code{m4} builtin -@code{dnl}; it causes @code{m4} to discard the text through the next -newline. It is not needed between macro definitions in @file{acsite.m4} -and @file{aclocal.m4}, because all output is discarded until -@code{AC_INIT} is called. - -@xref{Definitions, , How to define new macros, m4.info, GNU m4}, for -more complete information on writing @code{m4} macros. - -@node Macro Names, Quoting, Macro Definitions, Writing Macros -@section Macro Names - -All of the Autoconf macros have all-uppercase names starting with -@samp{AC_} to prevent them from accidentally conflicting with other -text. All shell variables that they use for internal purposes have -mostly-lowercase names starting with @samp{ac_}. To ensure that your -macros don't conflict with present or future Autoconf macros, you should -prefix your own macro names and any shell variables they use with some -other sequence. Possibilities include your initials, or an abbreviation -for the name of your organization or software package. - -Most of the Autoconf macros' names follow a structured naming convention -that indicates the kind of feature check by the name. The macro names -consist of several words, separated by underscores, going from most -general to most specific. The names of their cache variables use the -same convention (@pxref{Cache Variable Names}, for more information on them). - -The first word of the name after @samp{AC_} usually tells the category -of feature being tested. Here are the categories used in Autoconf for -specific test macros, the kind of macro that you are more likely to -write. They are also used for cache variables, in all-lowercase. Use -them where applicable; where they're not, invent your own categories. - -@table @code -@item C -C language builtin features. -@item DECL -Declarations of C variables in header files. -@item FUNC -Functions in libraries. -@item GROUP -UNIX group owners of files. -@item HEADER -Header files. -@item LIB -C libraries. -@item PATH -The full path names to files, including programs. -@item PROG -The base names of programs. -@item STRUCT -Definitions of C structures in header files. -@item SYS -Operating system features. -@item TYPE -C builtin or declared types. -@item VAR -C variables in libraries. -@end table - -After the category comes the name of the particular feature being -tested. Any further words in the macro name indicate particular aspects -of the feature. For example, @code{AC_FUNC_UTIME_NULL} checks the -behavior of the @code{utime} function when called with a @code{NULL} -pointer. - -A macro that is an internal subroutine of another macro should have a -name that starts with the name of that other macro, followed by one or -more words saying what the internal macro does. For example, -@code{AC_PATH_X} has internal macros @code{AC_PATH_X_XMKMF} and -@code{AC_PATH_X_DIRECT}. - -@node Quoting, Dependencies Between Macros, Macro Names, Writing Macros -@section Quoting - -Macros that are called by other macros are evaluated by @code{m4} -several times; each evaluation might require another layer of quotes to -prevent unwanted expansions of macros or @code{m4} builtins, such as -@samp{define} and @samp{$1}. Quotes are also required around macro -arguments that contain commas, since commas separate the arguments from -each other. It's a good idea to quote any macro arguments that contain -newlines or calls to other macros, as well. - -Autoconf changes the @code{m4} quote characters -from the default @samp{`} and @samp{'} to @samp{[} and @samp{]}, because -many of the macros use @samp{`} and @samp{'}, mismatched. However, in a -few places the macros need to use brackets (usually in C program text or -regular expressions). In those places, they use the @code{m4} builtin -command @code{changequote} to temporarily change the quote characters to -@samp{<<} and @samp{>>}. (Sometimes, if they don't need to quote -anything, they disable quoting entirely instead by setting the quote -characters to empty strings.) Here is an example: - -@example -AC_TRY_LINK( -changequote(<<, >>)dnl -<<#include <time.h> -#ifndef tzname /* For SGI. */ -extern char *tzname[]; /* RS6000 and others reject char **tzname. */ -#endif>>, -changequote([, ])dnl -[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no) -@end example - -When you create a @code{configure} script using newly written macros, -examine it carefully to check whether you need to add more quotes in -your macros. If one or more words have disappeared in the @code{m4} -output, you need more quotes. When in doubt, quote. - -However, it's also possible to put on too many layers of quotes. If -this happens, the resulting @code{configure} script will contain -unexpanded macros. The @code{autoconf} program checks for this problem -by doing @samp{grep AC_ configure}. - -@node Dependencies Between Macros, , Quoting, Writing Macros -@section Dependencies Between Macros - -Some Autoconf macros depend on other macros having been called first in -order to work correctly. Autoconf provides a way to ensure that certain -macros are called if needed and a way to warn the user if macros are -called in an order that might cause incorrect operation. - -@menu -* Prerequisite Macros:: Ensuring required information. -* Suggested Ordering:: Warning about possible ordering problems. -* Obsolete Macros:: Warning about old ways of doing things. -@end menu - -@node Prerequisite Macros, Suggested Ordering, , Dependencies Between Macros -@subsection Prerequisite Macros - -A macro that you write might need to use values that have previously -been computed by other macros. For example, @code{AC_DECL_YYTEXT} -examines the output of @code{flex} or @code{lex}, so it depends on -@code{AC_PROG_LEX} having been called first to set the shell variable -@code{LEX}. - -Rather than forcing the user of the macros to keep track of the -dependencies between them, you can use the @code{AC_REQUIRE} macro to do -it automatically. @code{AC_REQUIRE} can ensure that a macro is only -called if it is needed, and only called once. - -@defmac AC_REQUIRE (@var{macro-name}) -@maindex REQUIRE -If the @code{m4} macro @var{macro-name} has not already been called, -call it (without any arguments). Make sure to quote @var{macro-name} -with square brackets. @var{macro-name} must have been defined using -@code{AC_DEFUN} or else contain a call to @code{AC_PROVIDE} to indicate -that it has been called. -@end defmac - -An alternative to using @code{AC_DEFUN} is to use @code{define} and call -@code{AC_PROVIDE}. Because this technique does not prevent nested -messages, it is considered obsolete. - -@defmac AC_PROVIDE (@var{this-macro-name}) -@maindex PROVIDE -Record the fact that @var{this-macro-name} has been called. -@var{this-macro-name} should be the name of the macro that is calling -@code{AC_PROVIDE}. An easy way to get it is from the @code{m4} builtin -variable @code{$0}, like this: - -@example -AC_PROVIDE([$0]) -@end example -@end defmac - -@node Suggested Ordering, Obsolete Macros, Prerequisite Macros, Dependencies Between Macros -@subsection Suggested Ordering - -Some macros should be run before another macro if both are called, but -neither @emph{requires} that the other be called. For example, a macro -that changes the behavior of the C compiler should be called before any -macros that run the C compiler. Many of these dependencies are noted in -the documentation. - -Autoconf provides the @code{AC_BEFORE} macro to warn users when macros -with this kind of dependency appear out of order in a -@file{configure.in} file. The warning occurs when creating -@code{configure} from @file{configure.in}, not when running -@code{configure}. -For example, @code{AC_PROG_CPP} checks whether the C compiler -can run the C preprocessor when given the @samp{-E} option. It should -therefore be called after any macros that change which C compiler is -being used, such as @code{AC_PROG_CC}. So @code{AC_PROG_CC} contains: - -@example -AC_BEFORE([$0], [AC_PROG_CPP])dnl -@end example - -@noindent -This warns the user if a call to @code{AC_PROG_CPP} has already occurred -when @code{AC_PROG_CC} is called. - -@defmac AC_BEFORE (@var{this-macro-name}, @var{called-macro-name}) -@maindex BEFORE -Make @code{m4} print a warning message on the standard error output if -@var{called-macro-name} has already been called. @var{this-macro-name} -should be the name of the macro that is calling @code{AC_BEFORE}. The -macro @var{called-macro-name} must have been defined using -@code{AC_DEFUN} or else contain a call to @code{AC_PROVIDE} to indicate -that it has been called. -@end defmac - -@node Obsolete Macros, , Suggested Ordering, Dependencies Between Macros -@subsection Obsolete Macros - -Configuration and portability technology has evolved over the years. -Often better ways of solving a particular problem are developed, or -ad-hoc approaches are systematized. This process has occurred in many -parts of Autoconf. One result is that some of the macros are now -considered @dfn{obsolete}; they still work, but are no longer considered -the best thing to do. Autoconf provides the @code{AC_OBSOLETE} macro to -warn users producing @code{configure} scripts when they use obsolete -macros, to encourage them to modernize. A sample call is: - -@example -AC_OBSOLETE([$0], [; use AC_CHECK_HEADERS(unistd.h) instead])dnl -@end example - -@defmac AC_OBSOLETE (@var{this-macro-name} @r{[}, @var{suggestion}@r{]}) -@maindex OBSOLETE -Make @code{m4} print a message on the standard error output warning that -@var{this-macro-name} is obsolete, and giving the file and line number -where it was called. @var{this-macro-name} should be the name of the -macro that is calling @code{AC_OBSOLETE}. If @var{suggestion} is given, -it is printed at the end of the warning message; for example, it can be -a suggestion for what to use instead of @var{this-macro-name}. -@end defmac - -@node Manual Configuration, Site Configuration, Writing Macros, Top -@chapter Manual Configuration - -A few kinds of features can't be guessed automatically by running test -programs. For example, the details of the object file format, or -special options that need to be passed to the compiler or linker. It is -possible to check for such features using ad-hoc means, such as having -@code{configure} check the output of the @code{uname} program, or -looking for libraries that are unique to particular systems. However, -Autoconf provides a uniform method for handling unguessable features. - -@menu -* Specifying Names:: Specifying the system type. -* Canonicalizing:: Getting the canonical system type. -* System Type Variables:: Variables containing the system type. -* Using System Type:: What to do with the system type. -@end menu - -@node Specifying Names, Canonicalizing, , Manual Configuration -@section Specifying the System Type - -Like other GNU @code{configure} scripts, Autoconf-generated -@code{configure} scripts can make decisions based on a canonical name -for the system type, which has the form: - -@example -@var{cpu}-@var{company}-@var{system} -@end example - -@code{configure} can usually guess the canonical name for the type of -system it's running on. To do so it runs a script called -@code{config.guess}, which derives the name using the @code{uname} -command or symbols predefined by the C preprocessor. - -Alternately, the user can specify the system type with command line -arguments to @code{configure}. Doing so is necessary when -cross-compiling. In the most complex case of cross-compiling, three -system types are involved. The options to specify them are: - -@table @code -@item --build=@var{build-type} -the type of system on which the package is being configured and -compiled (rarely needed); - -@item --host=@var{host-type} -the type of system on which the package will run; - -@item --target=@var{target-type} -the type of system for which any compiler tools in the package will -produce code. -@end table - -@noindent -If the user gives @code{configure} a non-option argument, it is used as -the default for the host, target, and build system types if the user -does not specify them explicitly with options. The target and build -types default to the host type if it is given and they are not. If you -are cross-compiling, you still have to specify the names of the -cross-tools you use, in particular the C compiler, on the -@code{configure} command line, e.g., - -@example -CC=m68k-coff-gcc configure --target=m68k-coff -@end example - -@code{configure} recognizes short aliases for many system types; for -example, @samp{decstation} can be given on the command line instead of -@samp{mips-dec-ultrix4.2}. @code{configure} runs a script called -@code{config.sub} to canonicalize system type aliases. - -@node Canonicalizing, System Type Variables, Specifying Names, Manual Configuration -@section Getting the Canonical System Type - -The following macros make the system type available to @code{configure} -scripts. They run the shell script @code{config.guess} to determine any -values for the host, target, and build types that they need and the user -did not specify on the command line. They run @code{config.sub} to -canonicalize any aliases the user gave. If you use these macros, you -must distribute those two shell scripts along with your source code. -@xref{Output}, for information about the @code{AC_CONFIG_AUX_DIR} macro -which you can use to control which directory @code{configure} looks for -those scripts in. If you do not use either of these macros, -@code{configure} ignores any @samp{--host}, @samp{--target}, and -@samp{--build} options given to it. - -@defmac AC_CANONICAL_SYSTEM -@maindex CANONICAL_SYSTEM -Determine the system type and set output variables to the names of the -canonical system types. @xref{System Type Variables}, for details about -the variables this macro sets. -@end defmac - -@defmac AC_CANONICAL_HOST -@maindex CANONICAL_HOST -Perform only the subset of @code{AC_CANONICAL_SYSTEM} relevant to the -host type. This is all that is needed for programs that are not part of -a compiler toolchain. -@end defmac - -@node System Type Variables, Using System Type, Canonicalizing, Manual Configuration -@section System Type Variables - -After calling @code{AC_CANONICAL_SYSTEM}, the following output variables -contain the system type information. After @code{AC_CANONICAL_HOST}, -only the @code{host} variables below are set. - -@table @code -@ovindex build -@ovindex host -@ovindex target -@item @code{build}, @code{host}, @code{target} -the canonical system names; - -@item @code{build_alias}, @code{host_alias}, @code{target_alias} -@ovindex build_alias -@ovindex host_alias -@ovindex target_alias -the names the user specified, or the canonical names if -@code{config.guess} was used; - -@item @code{build_cpu}, @code{build_vendor}, @code{build_os} -@itemx @code{host_cpu}, @code{host_vendor}, @code{host_os} -@itemx @code{target_cpu}, @code{target_vendor}, @code{target_os} -@ovindex build_cpu -@ovindex host_cpu -@ovindex target_cpu -@ovindex build_vendor -@ovindex host_vendor -@ovindex target_vendor -@ovindex build_os -@ovindex host_os -@ovindex target_os -the individual parts of the canonical names (for convenience). -@end table - -@node Using System Type, , System Type Variables, Manual Configuration -@section Using the System Type - -How do you use a canonical system type? Usually, you use it in one or -more @code{case} statements in @file{configure.in} to select -system-specific C files. Then link those files, which have names based -on the system name, to generic names, such as @file{host.h} or -@file{target.c}. The @code{case} statement patterns can use shell -wildcards to group several cases together, like in this fragment: - -@example -case "$target" in -i386-*-mach* | i386-*-gnu*) obj_format=aout emulation=mach bfd_gas=yes ;; -i960-*-bout) obj_format=bout ;; -esac -@end example - -@defmac AC_LINK_FILES (@var{source}@dots{}, @var{dest}@dots{}) -@maindex LINK_FILES -Make @code{AC_OUTPUT} link each of the existing files @var{source} to -the corresponding link name @var{dest}. Makes a symbolic link if -possible, otherwise a hard link. The @var{dest} and @var{source} names -should be relative to the top level source or build directory. - -For example, this call: - -@example -AC_LINK_FILES(config/$@{machine@}.h config/$@{obj_format@}.h, host.h object.h) -@end example - -@noindent -creates in the current directory @file{host.h}, which is a link to -@file{@var{srcdir}/config/$@{machine@}.h}, and @file{object.h}, which is a link -to @file{@var{srcdir}/config/$@{obj_format@}.h}. -@end defmac - -@node Site Configuration, Invoking configure, Manual Configuration, Top -@chapter Site Configuration - -@code{configure} scripts support several kinds of local configuration -decisions. There are ways for users to specify where external software -packages are, include or exclude optional features, install programs -under modified names, and set default values for @code{configure} -options. - -@menu -* External Software:: Working with other optional software. -* Package Options:: Selecting optional features. -* Site Details:: Configuring site details. -* Transforming Names:: Changing program names when installing. -* Site Defaults:: Giving @code{configure} local defaults. -@end menu - -@node External Software, Package Options, , Site Configuration -@section Working With External Software - -Some packages require, or can optionally use, other software packages -which are already installed. The user can give @code{configure} -command line options to specify which such external software to use. -The options have one of these forms: - -@example ---with-@var{package}@r{[}=@var{arg}@r{]} ---without-@var{package} -@end example - -For example, @samp{--with-gnu-ld} means work with the GNU linker instead -of some other linker. @samp{--with-x11} means work with X11. - -The user can give an argument by following the package name with -@samp{=} and the argument. Giving an argument of @samp{no} is for -packages that are used by default; it says to @emph{not} use the -package. An argument that is neither @samp{yes} nor @samp{no} could -include a name or number of a version of the other package, to specify -more precisely which other package this program is supposed to work -with. If no argument is given, it defaults to @samp{yes}. -@samp{--without-@var{package}} is equivalent to -@samp{--with-@var{package}=no}. - -For each external software package that may be used, @file{configure.in} -should call @code{AC_ARG_WITH} to detect whether the @code{configure} -user asked to use it. Whether each package is used or not by -default, and which arguments are valid, is up to you. - -@defmac AC_ARG_WITH (@var{package}, @var{help-string}, @var{action-if-true} @r{[}, @var{action-if-false}@r{]}) -@maindex ARG_WITH -If the user gave @code{configure} the option @samp{--with-@var{package}} -or @samp{--without-@var{package}}, run shell commands -@var{action-if-true}. Otherwise run shell commands -@var{action-if-false}. The name @var{package} indicates another -software package that this program should work with. It should consist -only of alphanumeric characters and dashes. - -The option's argument is available to the shell commands -@var{action-if-true} in the shell variable @code{withval}. - -The argument @var{help-string} is a description of the option which -looks like this: -@example - --with-readline support fancy command line editing -@end example -@noindent -@var{help-string} may be more than one line long, if more detail is -needed. Just make sure the columns line up in @samp{configure --help}. -Avoid tabs in the help string. You'll need to enclose it in @samp{[} -and @samp{]} in order to produce the leading spaces. -@end defmac - -@defmac AC_WITH (@var{package}, @var{action-if-true} @r{[}, @var{action-if-false}@r{]}) -@maindex WITH -This is an obsolete version of @code{AC_ARG_WITH} that does not -support providing a help string. -@end defmac - -@node Package Options, Site Details, External Software, Site Configuration -@section Choosing Package Options - -If a software package has optional compile-time features, the user can -give @code{configure} command line options to specify whether to -compile them. The options have one of these forms: - -@example ---enable-@var{feature}@r{[}=@var{arg}@r{]} ---disable-@var{feature} -@end example - -These options allow users to choose which optional features to build and -install. @samp{--enable-@var{feature}} options should never make a -feature behave differently or cause one feature to replace another. -They should only cause parts of the program to be built rather than left -out. - -The user can give an argument by following the feature name with -@samp{=} and the argument. Giving an argument of @samp{no} requests -that the feature @emph{not} be made available. A feature with an -argument looks like @samp{--enable-debug=stabs}. If no argument is -given, it defaults to @samp{yes}. @samp{--disable-@var{feature}} is -equivalent to @samp{--enable-@var{feature}=no}. - -For each optional feature, @file{configure.in} should call -@code{AC_ARG_ENABLE} to detect whether the @code{configure} user asked -to include it. Whether each feature is included or not by default, and -which arguments are valid, is up to you. - -@defmac AC_ARG_ENABLE (@var{feature}, @var{help-string}, @var{action-if-true} @r{[}, @var{action-if-false}@r{]}) -@maindex ARG_ENABLE -If the user gave @code{configure} the option -@samp{--enable-@var{feature}} or @samp{--disable-@var{feature}}, run -shell commands @var{action-if-true}. Otherwise run shell commands -@var{action-if-false}. The name @var{feature} indicates an optional -user-level facility. It should consist only of alphanumeric characters -and dashes. - -The option's argument is available to the shell commands -@var{action-if-true} in the shell variable @code{enableval}. -The @var{help-string} argument is like that of @code{AC_ARG_WITH} -(@pxref{External Software}). -@end defmac - -@defmac AC_ENABLE (@var{feature}, @var{action-if-true} @r{[}, @var{action-if-false}@r{]}) -@maindex ENABLE -This is an obsolete version of @code{AC_ARG_ENABLE} that does not -support providing a help string. -@end defmac - -@node Site Details, Transforming Names, Package Options, Site Configuration -@section Configuring Site Details - -Some software packages require complex site-specific information. Some -examples are host names to use for certain services, company names, and -email addresses to contact. Since some configuration scripts generated -by Metaconfig ask for such information interactively, people sometimes -wonder how to get that information in Autoconf-generated configuration -scripts, which aren't interactive. - -Such site configuration information should be put in a file that is -edited @emph{only by users}, not by programs. The location of the file -can either be based on the @code{prefix} variable, or be a standard -location such as the user's home directory. It could even be specified -by an environment variable. The programs should examine that file at -run time, rather than at compile time. That approach is more convenient -for users and makes the configuration process simpler than getting the -information while configuring. @xref{Directory Variables, , Variables -for Installation Directories, standards, GNU Coding Standards}, for more -information on where to put data files. - -@node Transforming Names, Site Defaults, Site Details, Site Configuration -@section Transforming Program Names When Installing - -Autoconf supports changing the names of programs when installing them. -In order to use these transformations, @file{configure.in} must call the -macro @code{AC_ARG_PROGRAM}. - -@defmac AC_ARG_PROGRAM -@maindex ARG_PROGRAM -@ovindex program_transform_name -Place in output variable @code{program_transform_name} a sequence of -@code{sed} commands for changing the names of installed programs. - -If any of the options described below are given to @code{configure}, -program names are transformed accordingly. Otherwise, if -@code{AC_CANONICAL_SYSTEM} has been called and a @samp{--target} value -is given that differs from the host type (specified with @samp{--host} -or defaulted by @code{config.sub}), the target type followed by a dash -is used as a prefix. Otherwise, no program name transformation is done. -@end defmac - -@menu -* Transformation Options:: @code{configure} options to transforme names. -* Transformation Examples:: Sample uses of transforming names. -* Transformation Rules:: @file{Makefile} uses of transforming names. -@end menu - -@node Transformation Options, Transformation Examples, , Transforming Names -@subsection Transformation Options - -You can specify name transformations by giving @code{configure} these -command line options: - -@table @code -@item --program-prefix=@var{prefix} -prepend @var{prefix} to the names; - -@item --program-suffix=@var{suffix} -append @var{suffix} to the names; - -@item --program-transform-name=@var{expression} -perform @code{sed} substitution @var{expression} on the names. -@end table - -@node Transformation Examples, Transformation Rules, Transformation Options, Transforming Names -@subsection Transformation Examples - -These transformations are useful with programs that can be part of a -cross-compilation development environment. For example, a -cross-assembler running on a Sun 4 configured with -@samp{--target=i960-vxworks} is normally installed as -@file{i960-vxworks-as}, rather than @file{as}, which could be confused -with a native Sun 4 assembler. - -You can force a program name to begin with @file{g}, if you don't want -GNU programs installed on your system to shadow other programs with the -same name. For example, if you configure GNU @code{diff} with -@samp{--program-prefix=g}, then when you run @samp{make install} it is -installed as @file{/usr/local/bin/gdiff}. - -As a more sophistocated example, you could use -@example ---program-transform-name='s/^/g/; s/^gg/g/; s/^gless/less/' -@end example -@noindent -to prepend @samp{g} to most of the program names in a source tree, -excepting those like @code{gdb} that already have one and those like -@code{less} and @code{lesskey} that aren't GNU programs. (That is -assuming that you have a source tree containing those programs that is -set up to use this feature.) - -One way to install multiple versions of some programs simultaneously is -to append a version number to the name of one or both. For example, if -you want to keep Autoconf version 1 around for awhile, you can configure -Autoconf version 2 using @samp{--program-suffix=2} to install the -programs as @file{/usr/local/bin/autoconf2}, -@file{/usr/local/bin/autoheader2}, etc. - -@node Transformation Rules, , Transformation Examples, Transforming Names -@subsection Transformation Rules - -Here is how to use the variable @code{program_transform_name} in a -@file{Makefile.in}: - -@example -transform=@@program_transform_name@@ -install: all - $(INSTALL_PROGRAM) myprog $(bindir)/`echo myprog|sed '$(transform)'` - -uninstall: - rm -f $(bindir)/`echo myprog|sed '$(transform)'` -@end example - -@noindent -If you have more than one program to install, you can do it in a loop: - -@example -PROGRAMS=cp ls rm -install: - for p in $(PROGRAMS); do \ - $(INSTALL_PROGRAM) $$p $(bindir)/`echo $$p|sed '$(transform)'`; \ - done - -uninstall: - for p in $(PROGRAMS); do \ - rm -f $(bindir)/`echo $$p|sed '$(transform)'`; \ - done -@end example - -Whether to do the transformations on documentation files (Texinfo or -@code{man}) is a tricky question; there seems to be no perfect answer, -due to the several reasons for name transforming. Documentation is not -usually particular to a specific architecture, and Texinfo files do not -conflict with system documentation. But they might conflict with -earlier versions of the same files, and @code{man} pages sometimes do -conflict with system documentation. As a compromise, it is probably -best to do name transformations on @code{man} pages but not on Texinfo -manuals. - -@node Site Defaults, , Transforming Names, Site Configuration -@section Setting Site Defaults - -Autoconf-generated @code{configure} scripts allow your site to provide -default values for some configuration values. You do this by creating -site- and system-wide initialization files. - -@evindex CONFIG_SITE -If the environment variable @code{CONFIG_SITE} is set, @code{configure} -uses its value as the name of a shell script to read. Otherwise, it -reads the shell script @file{@var{prefix}/share/config.site} if it exists, -then @file{@var{prefix}/etc/config.site} if it exists. Thus, -settings in machine-specific files override those in machine-independent -ones in case of conflict. - -Site files can be arbitrary shell scripts, but only certain kinds of -code are really appropriate to be in them. Because @code{configure} -reads any cache file after it has read any site files, a site file can -define a default cache file to be shared between all Autoconf-generated -@code{configure} scripts run on that system. If you set a default cache -file in a site file, it is a good idea to also set the output variable -@code{CC} in that site file, because the cache file is only valid for a -particular compiler, but many systems have several available. - -Site files are also good places to set default values for other output -variables, such as @code{CFLAGS}, if you need to give them non-default -values: anything you would normally do, repetitively, on the command -line. If you use non-default values for @var{prefix} or -@var{exec_prefix} (wherever you locate the site file), you can set them -in the site file if you specify it with the @code{CONFIG_SITE} -environment variable. - -You can set some cache values in the site file itself. Doing this is -useful if you are cross-compiling, so it is impossible to check features -that require running a test program. You could ``prime the cache'' by -setting those values correctly for that system in -@file{@var{prefix}/etc/config.site}. To find out the names of the cache -variables you need to set, look for shell variables with @samp{_cv_} in -their names in the affected @code{configure} scripts, or in the Autoconf -@code{m4} source code for those macros. - -The cache file is careful to not override any variables set in the site -files. Similarly, you should not override command-line options in the -site files. Your code should check that variables such as @code{prefix} -and @code{cache_file} have their default values (as set near the top of -@code{configure}) before changing them. - -Here is a sample file @file{/usr/share/local/gnu/share/config.site}. The -command @samp{configure --prefix=/usr/share/local/gnu} would read this -file (if @code{CONFIG_SITE} is not set to a different file). - -@example -# config.site for configure -# -# Default --prefix and --exec-prefix. -test "$prefix" = NONE && prefix=/usr/share/local/gnu -test "$exec_prefix" = NONE && exec_prefix=/usr/local/gnu -# -# Give Autoconf 2.x generated configure scripts a shared default -# cache file for feature test results, architecture-specific. -if test "$cache_file" = ./config.cache; then - cache_file="$prefix/var/config.cache" - # A cache file is only valid for one C compiler. - CC=gcc -fi -@end example - -@node Invoking configure, Invoking config.status, Site Configuration, Top -@chapter Running @code{configure} Scripts - -Below are instructions on how to configure a package that uses a -@code{configure} script, suitable for inclusion as an @file{INSTALL} -file in the package. A plain-text version of @file{INSTALL} which you -may use comes with Autoconf. - -@menu -* Basic Installation:: Instructions for typical cases. -* Compilers and Options:: Selecting compilers and optimization. -* Build Directory:: Configuring in a different directory. -* Installation Names:: Installing in different directories. -* Optional Features:: Selecting optional features. -* System Type:: Specifying the system type. -* Sharing Defaults:: Setting site-wide defaults for @code{configure}. -* Operation Controls:: Changing how @code{configure} runs. -@end menu - -@include install.texi - -@node Invoking config.status, Questions, Invoking configure, Top -@chapter Recreating a Configuration - -The @code{configure} script creates a file named @file{config.status} -which describes which configuration options were specified when the -package was last configured. This file is a shell script which, -if run, will recreate the same configuration. - -You can give @file{config.status} the @samp{--recheck} option to update -itself. This option is useful if you change @code{configure}, so that -the results of some tests might be different from the previous run. The -@samp{--recheck} option re-runs @code{configure} with the same arguments -you used before, plus the @samp{--no-create} option, which prevent -@code{configure} from running @file{config.status} and creating -@file{Makefile} and other files, and the @samp{--no-recursion} option, -which prevents @code{configure} from running other @code{configure} -scripts in subdirectories. (This is so other @file{Makefile} rules can -run @file{config.status} when it changes; @pxref{Automatic Remaking}, -for an example). - -@file{config.status} also accepts the options @samp{--help}, which -prints a summary of the options to @file{config.status}, and -@samp{--version}, which prints the version of Autoconf used to create -the @code{configure} script that generated @file{config.status}. - -@file{config.status} checks several optional environment variables that -can alter its behavior: - -@defvar CONFIG_SHELL -@evindex CONFIG_SHELL -The shell with which to run @code{configure} for the @samp{--recheck} -option. It must be Bourne-compatible. The default is @file{/bin/sh}. -@end defvar - -@defvar CONFIG_STATUS -@evindex CONFIG_STATUS -The file name to use for the shell script that records the -configuration. The default is @file{./config.status}. This variable is -useful when one package uses parts of another and the @code{configure} -scripts shouldn't be merged because they are maintained separately. -@end defvar - -The following variables provide one way for separately distributed -packages to share the values computed by @code{configure}. Doing so can -be useful if some of the packages need a superset of the features that -one of them, perhaps a common library, does. These variables allow a -@file{config.status} file to create files other than the ones that its -@file{configure.in} specifies, so it can be used for a different package. - -@defvar CONFIG_FILES -@evindex CONFIG_FILES -The files in which to perform @samp{@@@var{variable}@@} substitutions. -The default is the arguments given to @code{AC_OUTPUT} in @file{configure.in}. -@end defvar - -@defvar CONFIG_HEADERS -@evindex CONFIG_HEADERS -The files in which to substitute C @code{#define} statements. -The default is the arguments given to @code{AC_CONFIG_HEADER}; if that -macro was not called, @file{config.status} ignores this variable. -@end defvar - -These variables also allow you to write @file{Makefile} rules that -regenerate only some of the files. For example, in the dependencies -given above (@pxref{Automatic Remaking}), @file{config.status} is run -twice when @file{configure.in} has changed. If that bothers you, you -can make each run only regenerate the files for that rule: - -@example -@group -config.h: stamp-h -stamp-h: config.h.in config.status - CONFIG_FILES= CONFIG_HEADERS=config.h ./config.status - echo > stamp-h - -Makefile: Makefile.in config.status - CONFIG_FILES=Makefile CONFIG_HEADERS= ./config.status -@end group -@end example - -@noindent -(If @file{configure.in} does not call @code{AC_CONFIG_HEADER}, there is -no need to set @code{CONFIG_HEADERS} in the @code{make} rules.) - -@node Questions, Upgrading, Invoking config.status, Top -@chapter Questions About Autoconf - -Several questions about Autoconf come up occasionally. Here some of them -are addressed. - -@menu -* Distributing:: Distributing @code{configure} scripts. -* Why GNU m4:: Why not use the standard @code{m4}? -* Bootstrapping:: Autoconf and GNU @code{m4} require each other? -* Why Not Imake:: Why GNU uses @code{configure} instead of Imake. -@end menu - -@node Distributing, Why GNU m4, , Questions -@section Distributing @code{configure} Scripts - -@display -What are the restrictions on distributing @code{configure} -scripts that Autoconf generates? How does that affect my -programs that use them? -@end display - -There are no restrictions on how the configuration scripts that Autoconf -produces may be distributed or used. In Autoconf version 1, they were -covered by the GNU General Public License. We still encourage software -authors to distribute their work under terms like those of the GPL, but -doing so is not required to use Autoconf. - -Of the other files that might be used with @code{configure}, -@file{config.h.in} is under whatever copyright you use for your -@file{configure.in}, since it is derived from that file and from the -public domain file @file{acconfig.h}. @file{config.sub} and -@file{config.guess} have an exception to the GPL when they are used with -an Autoconf-generated @code{configure} script, which permits you to -distribute them under the same terms as the rest of your package. -@file{install-sh} is from the X Consortium and is not copyrighted. - -@node Why GNU m4, Bootstrapping, Distributing, Questions -@section Why Require GNU @code{m4}? - -@display -Why does Autoconf require GNU @code{m4}? -@end display - -Many @code{m4} implementations have hard-coded limitations on the size -and number of macros, which Autoconf exceeds. They also lack several -builtin macros that it would be difficult to get along without in a -sophisticated application like Autoconf, including: - -@example -builtin -indir -patsubst -__file__ -__line__ -@end example - -Since only software maintainers need to use Autoconf, and since GNU -@code{m4} is simple to configure and install, it seems reasonable to -require GNU @code{m4} to be installed also. Many maintainers of GNU and -other free software already have most of the GNU utilities installed, -since they prefer them. - -@node Bootstrapping, Why Not Imake, Why GNU m4, Questions -@section How Can I Bootstrap? - -@display -If Autoconf requires GNU @code{m4} and GNU @code{m4} has an -Autoconf @code{configure} script, how do I bootstrap? It seems -like a chicken and egg problem! -@end display - -This is a misunderstanding. Although GNU @code{m4} does come with a -@code{configure} script produced by Autoconf, Autoconf is not required -in order to run the script and install GNU @code{m4}. Autoconf is only -required if you want to change the @code{m4} @code{configure} script, -which few people have to do (mainly its maintainer). - -@node Why Not Imake, , Bootstrapping, Questions -@section Why Not Imake? - -@display -Why not use Imake instead of @code{configure} scripts? -@end display - -Several people have written addressing this question, so I include -adaptations of their explanations here. - -The following answer is based on one written by Richard Pixley: - -Autoconf generated scripts frequently work on machines which it has -never been set up to handle before. That is, it does a good job of -inferring a configuration for a new system. Imake cannot do this. - -Imake uses a common database of host specific data. For X11, this makes -sense because the distribution is made as a collection of tools, by one -central authority who has control over the database. - -GNU tools are not released this way. Each GNU tool has a maintainer; -these maintainers are scattered across the world. Using a common -database would be a maintenance nightmare. Autoconf may appear to be -this kind of database, but in fact it is not. Instead of listing host -dependencies, it lists program requirements. - -Imake is special-purpose. It is directed at building the X11 -distribution. By comparison to the GNU tools, this is a simple problem. -If you view the GNU suite as a collection of native tools, then the -problems are similar. But the GNU tools are more powerful than that. -The development tools can be configured as cross tools in almost any -host+target permutation. All of these configurations can be installed -concurrently. They can even be configured to share host independent -files across hosts. Imake doesn't address these issues. - -Imake templates are a form of standardization. The GNU coding standards -address the same issues without necessarily imposing the same -restrictions. - -Here is some further explanation, written by Per Bothner: - -One of the advantages of Imake is that it easy to generate large -Makefiles using @code{cpp}'s @samp{#include} and macro mechanisms. -However, @code{cpp} is not programmable: it has limited conditional -facilities, and no looping. And @code{cpp} cannot inspect its -environment. - -All of these problems are solved by using @code{sh} instead of -@code{cpp}. The shell is fully programmable, has macro substitution, -can execute (or source) other shell scripts, and can inspect its -environment. - -Paul Eggert elaborates more: - -With Autoconf, installers need not assume that Imake itself is already -installed and working well. This may not seem like much of an advantage -to people who are accustomed to Imake. But on many hosts Imake is not -installed or the default installation is not working well, and requiring -Imake to install a package hinders the acceptance of that package on -those hosts. For example, the Imake template and configuration files -might not be installed properly on a host, or the Imake build procedure -might wrongly assume that all source files are in one big directory -tree, or the Imake configuration might assume one compiler whereas the -package or the installer needs to use another, or there might be a -version mismatch between the Imake expected by the package and the Imake -suported by the host. These problems are much rarer with Autoconf, -where each package comes with its own independent configuration -processor. - -Also, Imake often suffers from unexpected interactions between -@code{make} and the installer's C preprocessor. The fundamental problem -here is that the C preprocessor was designed to preprocess C programs, -not @file{Makefile}s. This is much less of a problem with Autoconf, -which uses the general-purpose preprocessor @code{m4}, and where the -package's author (rather than the installer) does the preprocessing in a -standard way. - -Finally, Mark Eichin notes: - -Imake isn't all that extensible, either. In order to add new features to -Imake, you need to provide you own project template, and duplicate most -of the features of the existing one. This means that for a sophisticated -project, using the vendor-provided Imake templates fails to provide any -leverage---since they don't cover anything that your own project needs -(unless it is an X11 program). - -On the other side, though: - -The one advantage that Imake has over @code{configure}: -@file{Imakefile}s tend to be much shorter (likewise, less redundant) -than @file{Makefile.in}s. There is a fix to this, however---at least -for the Kerberos V5 tree, we've modified things to call in common -@file{post.in} and @file{pre.in} @file{Makefile} fragments for the -entire tree. This means that a lot of common things don't have to be -duplicated, even though they normally are in @code{configure} setups. - -@node Upgrading, History, Questions, Top -@chapter Upgrading From Version 1 - -Autoconf version 2 is mostly backward compatible with version 1. -However, it introduces better ways to do some things, and doesn't -support some of the ugly things in version 1. So, depending on how -sophisticated your @file{configure.in} files are, you might have to do -some manual work in order to upgrade to version 2. This chapter points -out some problems to watch for when upgrading. Also, perhaps your -@code{configure} scripts could benefit from some of the new features in -version 2; the changes are summarized in the file @file{NEWS} in the -Autoconf distribution. - -First, make sure you have GNU @code{m4} version 1.1 or higher installed, -preferably 1.3 or higher. Versions before 1.1 have bugs that prevent -them from working with Autoconf version 2. Versions 1.3 and later are -much faster than earlier versions, because as of version 1.3, GNU -@code{m4} has a more efficient implementation of diversions and can -freeze its internal state in a file that it can read back quickly. - -@menu -* Changed File Names:: Files you might rename. -* Changed Makefiles:: New things to put in @file{Makefile.in}. -* Changed Macros:: Macro calls you might replace. -* Invoking autoupdate:: Replacing old macro names in @code{configure.in}. -* Changed Results:: Changes in how to check test results. -* Changed Macro Writing:: Better ways to write your own macros. -@end menu - -@node Changed File Names, Changed Makefiles, , Upgrading -@section Changed File Names - -If you have an @file{aclocal.m4} installed with Autoconf (as opposed to -in a particular package's source directory), you must rename it to -@file{acsite.m4}. @xref{Invoking autoconf}. - -If you distribute @file{install.sh} with your package, rename it to -@file{install-sh} so @code{make} builtin rules won't inadvertantly -create a file called @file{install} from it. @code{AC_PROG_INSTALL} -looks for the script under both names, but it is best to use the new name. - -If you were using @file{config.h.top} or @file{config.h.bot}, you still -can, but you will have less clutter if you merge them into -@file{acconfig.h}. @xref{Invoking autoheader}. - -@node Changed Makefiles, Changed Macros, Changed File Names, Upgrading -@section Changed Makefiles - -Add @samp{@@CFLAGS@@}, @samp{@@CPPFLAGS@@}, and @samp{@@LDFLAGS@@} in -your @file{Makefile.in} files, so they can take advantage of the values -of those variables in the environment when @code{configure} is run. -Doing this isn't necessary, but it's a convenience for users. - -Also add @samp{@@configure_input@@} in a comment to each input file for -@code{AC_OUTPUT}, so that the output files will contain a comment saying -they were produced by @code{configure}. Automatically selecting the -right comment syntax for all the kinds of files that people call -@code{AC_OUTPUT} on became too much work. - -Add @file{config.log} and @file{config.cache} to the list of files you -remove in @code{distclean} targets. - -If you have the following in @file{Makefile.in}: - -@example -prefix = /usr/local -exec_prefix = $@{prefix@} -@end example - -@noindent -you must change it to: - -@example -prefix = @@prefix@@ -exec_prefix = @@exec_prefix@@ -@end example - -@noindent -The old feature of replacing those variables without @samp{@@} -characters around them has been removed. - -@node Changed Macros, Invoking autoupdate, Changed Makefiles, Upgrading -@section Changed Macros - -Many of the macros were renamed in Autoconf version 2. You can still -use the old names, but the new ones are clearer, and it's easier to find -the documentation for them. @xref{Old Macro Names}, for a table showing -the new names for the old macros. Use the @code{autoupdate} program to -convert your @file{configure.in} to using the new macro names. -@xref{Invoking autoupdate}. - -Some macros have been superseded by similar ones that do the job better, -but are not call-compatible. If you get warnings about calling obsolete -macros while running @code{autoconf}, you may safely ignore them, but -your @code{configure} script will generally work better if you follow -the advice it prints about what to replace the obsolete macros with. In -particular, the mechanism for reporting the results of tests has -changed. If you were using @code{echo} or @code{AC_VERBOSE} (perhaps -via @code{AC_COMPILE_CHECK}), your @code{configure} script's output will -look better if you switch to @code{AC_MSG_CHECKING} and -@code{AC_MSG_RESULT}. @xref{Printing Messages}. Those macros work best -in conjunction with cache variables. @xref{Caching Results}. - -@node Invoking autoupdate, Changed Results, Changed Macros, Upgrading -@section Using @code{autoupdate} to Modernize @code{configure} - -The @code{autoupdate} program updates a @file{configure.in} file that -calls Autoconf macros by their old names to use the current macro names. -In version 2 of Autoconf, most of the macros were renamed to use a more -uniform and descriptive naming scheme. @xref{Macro Names}, for a -description of the new scheme. Although the old names still work -(@pxref{Old Macro Names}, for a list of the old macro names and the -corresponding new names), you can make your @file{configure.in} files -more readable and make it easier to use the current Autoconf -documentation if you update them to use the new macro names. - -@evindex SIMPLE_BACKUP_SUFFIX -If given no arguments, @code{autoupdate} updates @file{configure.in}, -backing up the original version with the suffix @file{~} (or the value -of the environment variable @code{SIMPLE_BACKUP_SUFFIX}, if that is -set). If you give @code{autoupdate} an argument, it reads that file -instead of @file{configure.in} and writes the updated file to the -standard output. - -@noindent -@code{autoupdate} accepts the following options: - -@table @code -@item --help -@itemx -h -Print a summary of the command line options and exit. - -@item --macrodir=@var{dir} -@itemx -m @var{dir} -@evindex AC_MACRODIR -Look for the Autoconf macro files in directory @var{dir} instead of the -default installation directory. -You can also set the @code{AC_MACRODIR} -environment variable to a directory; this option overrides the -environment variable. - -@item --version -Print the version number of @code{autoupdate} and exit. -@end table - -@node Changed Results, Changed Macro Writing, Invoking autoupdate, Upgrading -@section Changed Results - -If you were checking the results of previous tests by examining the -shell variable @code{DEFS}, you need to switch to checking the values of -the cache variables for those tests. @code{DEFS} no longer exists while -@code{configure} is running; it is only created when generating output -files. This difference from version 1 is because properly quoting the -contents of that variable turned out to be too cumbersome and -inefficient to do every time @code{AC_DEFINE} is called. @xref{Cache -Variable Names}. - -For example, here is a @file{configure.in} fragment written for Autoconf -version 1: - -@example -AC_HAVE_FUNCS(syslog) -case "$DEFS" in -*-DHAVE_SYSLOG*) ;; -*) # syslog is not in the default libraries. See if it's in some other. - saved_LIBS="$LIBS" - for lib in bsd socket inet; do - AC_CHECKING(for syslog in -l$lib) - LIBS="$saved_LIBS -l$lib" - AC_HAVE_FUNCS(syslog) - case "$DEFS" in - *-DHAVE_SYSLOG*) break ;; - *) ;; - esac - LIBS="$saved_LIBS" - done ;; -esac -@end example - -Here is a way to write it for version 2: - -@example -AC_CHECK_FUNCS(syslog) -if test $ac_cv_func_syslog = no; then - # syslog is not in the default libraries. See if it's in some other. - for lib in bsd socket inet; do - AC_CHECK_LIB($lib, syslog, [AC_DEFINE(HAVE_SYSLOG) - LIBS="$LIBS $lib"; break]) - done -fi -@end example - -If you were working around bugs in @code{AC_DEFINE_UNQUOTED} by adding -backslashes before quotes, you need to remove them. It now works -predictably, and does not treat quotes (except backquotes) specially. -@xref{Setting Output Variables}. - -All of the boolean shell variables set by Autoconf macros now use -@samp{yes} for the true value. Most of them use @samp{no} for false, -though for backward compatibility some use the empty string instead. If -you were relying on a shell variable being set to something like 1 or -@samp{t} for true, you need to change your tests. - -@node Changed Macro Writing, , Changed Results, Upgrading -@section Changed Macro Writing - -When defining your own macros, you should now use @code{AC_DEFUN} -instead of @code{define}. @code{AC_DEFUN} automatically calls -@code{AC_PROVIDE} and ensures that macros called via @code{AC_REQUIRE} -do not interrupt other macros, to prevent nested @samp{checking@dots{}} -messages on the screen. There's no actual harm in continuing to use the -older way, but it's less convenient and attractive. @xref{Macro -Definitions}. - -You probably looked at the macros that came with Autoconf as a guide for -how to do things. It would be a good idea to take a look at the new -versions of them, as the style is somewhat improved and they take -advantage of some new features. - -If you were doing tricky things with undocumented Autoconf internals -(macros, variables, diversions), check whether you need to change -anything to account for changes that have been made. Perhaps you can -even use an officially supported technique in version 2 instead of -kludging. Or perhaps not. - -To speed up your locally written feature tests, add caching to them. -See whether any of your tests are of general enough usefulness to -encapsulate into macros that you can share. - -@node History, Old Macro Names, Upgrading, Top -@chapter History of Autoconf - -You may be wondering, Why was Autoconf originally written? How did it -get into its present form? (Why does it look like gorilla spit?) If -you're not wondering, then this chapter contains no information useful -to you, and you might as well skip it. If you @emph{are} wondering, -then let there be light@dots{} - -@menu -* Genesis:: Prehistory and naming of @code{configure}. -* Exodus:: The plagues of @code{m4} and Perl. -* Leviticus:: The priestly code of portability arrives. -* Numbers:: Growth and contributors. -* Deuteronomy:: Approaching the promises of easy configuration. -@end menu - -@node Genesis, Exodus, , History -@section Genesis - -In June 1991 I was maintaining many of the GNU utilities for the Free -Software Foundation. As they were ported to more platforms and more -programs were added, the number of @samp{-D} options that users had to -select in the @file{Makefile} (around 20) became burdensome. Especially -for me---I had to test each new release on a bunch of different systems. -So I wrote a little shell script to guess some of the correct settings -for the fileutils package, and released it as part of fileutils 2.0. -That @code{configure} script worked well enough that the next month I -adapted it (by hand) to create similar @code{configure} scripts for -several other GNU utilities packages. Brian Berliner also adapted one -of my scripts for his CVS revision control system. - -Later that summer, I learned that Richard Stallman and Richard Pixley -were developing similar scripts to use in the GNU compiler tools; so I -adapted my @code{configure} scripts to support their evolving interface: -using the file name @file{Makefile.in} as the templates; adding -@samp{+srcdir}, the first option (of many); and creating -@file{config.status} files. - -@node Exodus, Leviticus, Genesis, History -@section Exodus - -As I got feedback from users, I incorporated many improvements, using -Emacs to search and replace, cut and paste, similar changes in each of -the scripts. As I adapted more GNU utilities packages to use -@code{configure} scripts, updating them all by hand became impractical. -Rich Murphey, the maintainer of the GNU graphics utilities, sent me mail -saying that the @code{configure} scripts were great, and asking if I had -a tool for generating them that I could send him. No, I thought, but -I should! So I started to work out how to generate them. And the -journey from the slavery of hand-written @code{configure} scripts to the -abundance and ease of Autoconf began. - -Cygnus @code{configure}, which was being developed at around that time, -is table driven; it is meant to deal mainly with a discrete number of -system types with a small number of mainly unguessable features (such as -details of the object file format). The automatic configuration system -that Brian Fox had developed for Bash takes a similar approach. For -general use, it seems to me a hopeless cause to try to maintain an -up-to-date database of which features each variant of each operating -system has. It's easier and more reliable to check for most features on -the fly---especially on hybrid systems that people have hacked on -locally or that have patches from vendors installed. - -I considered using an architecture similar to that of Cygnus -@code{configure}, where there is a single @code{configure} script that -reads pieces of @file{configure.in} when run. But I didn't want to have -to distribute all of the feature tests with every package, so I settled -on having a different @code{configure} made from each -@file{configure.in} by a preprocessor. That approach also offered more -control and flexibility. - -I looked briefly into using the Metaconfig package, by Larry Wall, -Harlan Stenn, and Raphael Manfredi, but I decided not to for several -reasons. The @code{Configure} scripts it produces are interactive, -which I find quite inconvenient; I didn't like the ways it checked for -some features (such as library functions); I didn't know that it was -still being maintained, and the @code{Configure} scripts I had -seen didn't work on many modern systems (such as System V R4 and NeXT); -it wasn't very flexible in what it could do in response to a feature's -presence or absence; I found it confusing to learn; and it was too big -and complex for my needs (I didn't realize then how much Autoconf would -eventually have to grow). - -I considered using Perl to generate my style of @code{configure} scripts, -but decided that @code{m4} was better suited to the job of simple -textual substitutions: it gets in the way less, because output is -implicit. Plus, everyone already has it. (Initially I didn't rely on -the GNU extensions to @code{m4}.) Also, some of my friends at the -University of Maryland had recently been putting @code{m4} front ends on -several programs, including @code{tvtwm}, and I was interested in trying -out a new language. - -@node Leviticus, Numbers, Exodus, History -@section Leviticus - -Since my @code{configure} scripts determine the system's capabilities -automatically, with no interactive user intervention, I decided to call -the program that generates them Autoconfig. But with a version number -tacked on, that name would be too long for old UNIX file systems, so -I shortened it to Autoconf. - -In the fall of 1991 I called together a group of fellow questers after -the Holy Grail of portability (er, that is, alpha testers) to give me -feedback as I encapsulated pieces of my handwritten scripts in @code{m4} -macros and continued to add features and improve the techniques used in -the checks. Prominent among the testers were -@ifinfo -Franc,ois -@end ifinfo -@tex -Fran\c cois -@end tex -Pinard, who came up with the idea of making an @file{autoconf} shell -script to run @code{m4} and check for unresolved macro calls; Richard -Pixley, who suggested running the compiler instead of searching the file -system to find include files and symbols, for more accurate results; -Karl Berry, who got Autoconf to configure @TeX{} and added the -macro index to the documentation; and Ian Taylor, who added support for -creating a C header file as an alternative to putting @samp{-D} options -in a @file{Makefile}, so he could use Autoconf for his UUCP package. The -alpha testers cheerfully adjusted their files again and again as the -names and calling conventions of the Autoconf macros changed from -release to release. They all contributed many specific checks, great -ideas, and bug fixes. - -@node Numbers, Deuteronomy, Leviticus, History -@section Numbers - -In July 1992, after months of alpha testing, I released Autoconf 1.0, -and converted many GNU packages to use it. I was surprised by how -positive the reaction to it was. More people started using it than I -could keep track of, including people working on software that wasn't -part of the GNU Project (such as TCL, FSP, and Kerberos V5). -Autoconf continued to improve rapidly, as many people using the -@code{configure} scripts reported problems they encountered. - -Autoconf turned out to be a good torture test for @code{m4} -implementations. UNIX @code{m4} started to dump core because of the -length of the macros that Autoconf defined, and several bugs showed up -in GNU @code{m4} as well. Eventually, we realized that we needed to use -some features that only GNU @code{m4} has. 4.3BSD @code{m4}, in -particular, has an impoverished set of builtin macros; the System V -version is better, but still doesn't provide everything we need. - -More development occurred as people put Autoconf under more stresses -(and to uses I hadn't anticipated). Karl Berry added checks for X11. -david zuhn contributed C++ support. -@ifinfo -Franc,ois -@end ifinfo -@tex -Fran\c cois -@end tex -Pinard made it diagnose invalid arguments. Jim Blandy bravely coerced -it into configuring GNU Emacs, laying the groundwork for several later -improvements. Roland McGrath got it to configure the GNU C Library, -wrote the @code{autoheader} script to automate the creation of C header -file templates, and added a @samp{--verbose} option to @code{configure}. -Noah Friedman added the @samp{--macrodir} option and @code{AC_MACRODIR} -environment variable. (He also coined the term @dfn{autoconfiscate} to -mean ``adapt a software package to use Autoconf''.) Roland and Noah -improved the quoting protection in @code{AC_DEFINE} and fixed many bugs, -especially when I got sick of dealing with portability problems from -February through June, 1993. - -@node Deuteronomy, , Numbers, History -@section Deuteronomy - -A long wish list for major features had accumulated, and the effect of -several years of patching by various people had left some residual -cruft. In April 1994, while working for Cygnus Support, I began a major -revision of Autoconf. I added most of the features of the Cygnus -@code{configure} that Autoconf had lacked, largely by adapting the -relevant parts of Cygnus @code{configure} with the help of david zuhn -and Ken Raeburn. These features include support for using -@file{config.sub}, @file{config.guess}, @samp{--host}, and -@samp{--target}; making links to files; and running @code{configure} -scripts in subdirectories. Adding these features enabled Ken to convert -GNU @code{as}, and Rob Savoye to convert DejaGNU, to using Autoconf. - -I added more features in response to other peoples' requests. Many -people had asked for @code{configure} scripts to share the results of -the checks between runs, because (particularly when configuring a large -source tree, like Cygnus does) they were frustratingly slow. Mike -Haertel suggested adding site-specific initialization scripts. People -distributing software that had to unpack on MS-DOS asked for a way to -override the @file{.in} extension on the file names, which produced file -names like @file{config.h.in} containing two dots. Jim Avera did an -extensive examination of the problems with quoting in @code{AC_DEFINE} -and @code{AC_SUBST}; his insights led to significant improvements. -Richard Stallman asked that compiler output be sent to @file{config.log} -instead of @file{/dev/null}, to help people debug the Emacs -@code{configure} script. - -I made some other changes because of my dissatisfaction with the quality -of the program. I made the messages showing results of the checks less -ambiguous, always printing a result. I regularized the names of the -macros and cleaned up coding style inconsistencies. I added some -auxiliary utilities that I had developed to help convert source code -packages to use Autoconf. With the help of -@ifinfo -Franc,ois -@end ifinfo -@tex -Fran\c cois -@end tex -Pinard, I made the macros not interrupt each others' messages. -(That feature revealed some performance bottlenecks in GNU @code{m4}, -which he hastily corrected!) -I reorganized the documentation around problems people want to solve. -And I began a testsuite, because experience -had shown that Autoconf has a pronounced tendency to regress when we -change it. - -Again, several alpha testers gave invaluable feedback, especially -@ifinfo -Franc,ois -@end ifinfo -@tex -Fran\c cois -@end tex -Pinard, Jim Meyering, Karl Berry, Rob Savoye, Ken Raeburn, and Mark Eichin. - -Finally, version 2.0 was ready. And there was much rejoicing. -(And I have free time again. I think. Yeah, right.) - -@node Old Macro Names, Environment Variable Index, History, Top -@chapter Old Macro Names - -In version 2 of Autoconf, most of the macros were renamed to use a more -uniform and descriptive naming scheme. Here are the old names of the -macros that were renamed, followed by the current names of those macros. -Although the old names are still accepted by the @code{autoconf} program -for backward compatibility, the old names are considered obsolete. -@xref{Macro Names}, for a description of the new naming scheme. - -@table @code -@item AC_ALLOCA -@maindex ALLOCA -@code{AC_FUNC_ALLOCA} -@item AC_ARG_ARRAY -@maindex ARG_ARRAY -removed because of limited usefulness -@item AC_CHAR_UNSIGNED -@maindex CHAR_UNSIGNED -@code{AC_C_CHAR_UNSIGNED} -@item AC_CONST -@maindex CONST -@code{AC_C_CONST} -@item AC_CROSS_CHECK -@maindex CROSS_CHECK -@code{AC_C_CROSS} -@item AC_ERROR -@maindex ERROR -@code{AC_MSG_ERROR} -@item AC_FIND_X -@maindex FIND_X -@code{AC_PATH_X} -@item AC_FIND_XTRA -@maindex FIND_XTRA -@code{AC_PATH_XTRA} -@item AC_FUNC_CHECK -@maindex FUNC_CHECK -@code{AC_CHECK_FUNC} -@item AC_GCC_TRADITIONAL -@maindex GCC_TRADITIONAL -@code{AC_PROG_GCC_TRADITIONAL} -@item AC_GETGROUPS_T -@maindex GETGROUPS_T -@code{AC_TYPE_GETGROUPS} -@item AC_GETLOADAVG -@maindex GETLOADAVG -@code{AC_FUNC_GETLOADAVG} -@item AC_HAVE_FUNCS -@maindex HAVE_FUNCS -@code{AC_CHECK_FUNCS} -@item AC_HAVE_HEADERS -@maindex HAVE_HEADERS -@code{AC_CHECK_HEADERS} -@item AC_HAVE_POUNDBANG -@maindex HAVE_POUNDBANG -@code{AC_SYS_INTERPRETER} (different calling convention) -@item AC_HEADER_CHECK -@maindex HEADER_CHECK -@code{AC_CHECK_HEADER} -@item AC_HEADER_EGREP -@maindex HEADER_EGREP -@code{AC_EGREP_HEADER} -@item AC_INLINE -@maindex INLINE -@code{AC_C_INLINE} -@item AC_LN_S -@maindex LN_S -@code{AC_PROG_LN_S} -@item AC_LONG_DOUBLE -@maindex LONG_DOUBLE -@code{AC_C_LONG_DOUBLE} -@item AC_LONG_FILE_NAMES -@maindex LONG_FILE_NAMES -@code{AC_SYS_LONG_FILE_NAMES} -@item AC_MAJOR_HEADER -@maindex MAJOR_HEADER -@code{AC_HEADER_MAJOR} -@item AC_MINUS_C_MINUS_O -@maindex MINUS_C_MINUS_O -@code{AC_PROG_CC_C_O} -@item AC_MMAP -@maindex MMAP -@code{AC_FUNC_MMAP} -@item AC_MODE_T -@maindex MODE_T -@code{AC_TYPE_MODE_T} -@item AC_OFF_T -@maindex OFF_T -@code{AC_TYPE_OFF_T} -@item AC_PID_T -@maindex PID_T -@code{AC_TYPE_PID_T} -@item AC_PREFIX -@maindex PREFIX -@code{AC_PREFIX_PROGRAM} -@item AC_PROGRAMS_CHECK -@maindex PROGRAMS_CHECK -@code{AC_CHECK_PROGS} -@item AC_PROGRAMS_PATH -@maindex PROGRAMS_PATH -@code{AC_PATH_PROGS} -@item AC_PROGRAM_CHECK -@maindex PROGRAM_CHECK -@code{AC_CHECK_PROG} -@item AC_PROGRAM_EGREP -@maindex PROGRAM_EGREP -@code{AC_EGREP_CPP} -@item AC_PROGRAM_PATH -@maindex PROGRAM_PATH -@code{AC_PATH_PROG} -@item AC_REMOTE_TAPE -@maindex REMOTE_TAPE -removed because of limited usefulness -@item AC_RESTARTABLE_SYSCALLS -@maindex RESTARTABLE_SYSCALLS -@code{AC_SYS_RESTARTABLE_SYSCALLS} -@item AC_RETSIGTYPE -@maindex RETSIGTYPE -@code{AC_TYPE_SIGNAL} -@item AC_RSH -@maindex RSH -removed because of limited usefulness -@item AC_SETVBUF_REVERSED -@maindex SETVBUF_REVERSED -@code{AC_FUNC_SETVBUF_REVERSED} -@item AC_SET_MAKE -@maindex SET_MAKE -@code{AC_PROG_MAKE_SET} -@item AC_SIZEOF_TYPE -@maindex SIZEOF_TYPE -@code{AC_CHECK_SIZEOF} -@item AC_SIZE_T -@maindex SIZE_T -@code{AC_TYPE_SIZE_T} -@item AC_STAT_MACROS_BROKEN -@maindex STAT_MACROS_BROKEN -@code{AC_HEADER_STAT} -@item AC_STDC_HEADERS -@maindex STDC_HEADERS -@code{AC_HEADER_STDC} -@item AC_STRCOLL -@maindex STRCOLL -@code{AC_FUNC_STRCOLL} -@item AC_ST_BLKSIZE -@maindex ST_BLKSIZE -@code{AC_STRUCT_ST_BLKSIZE} -@item AC_ST_BLOCKS -@maindex ST_BLOCKS -@code{AC_STRUCT_ST_BLOCKS} -@item AC_ST_RDEV -@maindex ST_RDEV -@code{AC_STRUCT_ST_RDEV} -@item AC_SYS_SIGLIST_DECLARED -@maindex SYS_SIGLIST_DECLARED -@code{AC_DECL_SYS_SIGLIST} -@item AC_TEST_CPP -@maindex TEST_CPP -@code{AC_TRY_CPP} -@item AC_TEST_PROGRAM -@maindex TEST_PROGRAM -@code{AC_TRY_RUN} -@item AC_TIMEZONE -@maindex TIMEZONE -@code{AC_STRUCT_TIMEZONE} -@item AC_TIME_WITH_SYS_TIME -@maindex TIME_WITH_SYS_TIME -@code{AC_HEADER_TIME} -@item AC_UID_T -@maindex UID_T -@code{AC_TYPE_UID_T} -@item AC_UTIME_NULL -@maindex UTIME_NULL -@code{AC_FUNC_UTIME_NULL} -@item AC_VFORK -@maindex VFORK -@code{AC_FUNC_VFORK} -@item AC_VPRINTF -@maindex VPRINTF -@code{AC_FUNC_VPRINTF} -@item AC_WAIT3 -@maindex WAIT3 -@code{AC_FUNC_WAIT3} -@item AC_WARN -@maindex WARN -@code{AC_MSG_WARN} -@item AC_WORDS_BIGENDIAN -@maindex WORDS_BIGENDIAN -@code{AC_C_BIGENDIAN} -@item AC_YYTEXT_POINTER -@maindex YYTEXT_POINTER -@code{AC_DECL_YYTEXT} -@end table - -@node Environment Variable Index, Output Variable Index, Old Macro Names, Top -@unnumbered Environment Variable Index - -This is an alphabetical list of the environment variables that Autoconf -checks. - -@printindex ev - -@node Output Variable Index, Preprocessor Symbol Index, Environment Variable Index, Top -@unnumbered Output Variable Index - -This is an alphabetical list of the variables that Autoconf can -substitute into files that it creates, typically one or more -@file{Makefile}s. @xref{Setting Output Variables}, for more information on how -this is done. - -@printindex ov - -@node Preprocessor Symbol Index, Macro Index, Output Variable Index, Top -@unnumbered Preprocessor Symbol Index - -This is an alphabetical list of the C preprocessor symbols that the -Autoconf macros define. To work with Autoconf, C source code needs to -use these names in @code{#if} directives. - -@printindex cv - -@node Macro Index, , Preprocessor Symbol Index, Top -@unnumbered Macro Index - -This is an alphabetical list of the Autoconf macros. To make the list -easier to use, the macros are listed without their preceding @samp{AC_}. - -@printindex ma - -@contents -@bye diff --git a/util/autoconf/autoheader b/util/autoconf/autoheader deleted file mode 100755 index 54b68d9..0000000 --- a/util/autoconf/autoheader +++ /dev/null @@ -1,250 +0,0 @@ -#!/bin/sh -# autoheader -- create `config.h.in' from `configure.in' -# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# Written by Roland McGrath. - -# If given no args, create `config.h.in' from template file `configure.in'. -# With one arg, create a header file on standard output from -# the given template file. - -usage="\ -Usage: autoheader [-h] [--help] [-m dir] [--macrodir=dir] - [-l dir] [--localdir=dir] [--version] [template-file]" - -# NLS nuisances. -# Only set `LANG' and `LC_ALL' to "C" if already set. -# These must not be set unconditionally because not all systems understand -# e.g. LANG=C (notably SCO). -if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi -if test "${LANG+set}" = set; then LANG=C; export LANG; fi - -test -z "${AC_MACRODIR}" && AC_MACRODIR=/usr/local/share/autoconf -test -z "${M4}" && M4=/mit/gnu/rsaixbin/gm4 -case "${M4}" in -/*) # Handle the case that m4 has moved since we were configured. - # It may have been found originally in a build directory. - test -f "${M4}" || M4=m4 ;; -esac - -localdir=. -show_version=no - -while test $# -gt 0 ; do - case "${1}" in - -h | --help | --h* ) - echo "${usage}"; exit 0 ;; - --localdir=* | --l*=* ) - localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -l | --localdir | --l*) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - localdir="${1}" - shift ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m* ) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - AC_MACRODIR="${1}" - shift ;; - --version | --v* ) - show_version=yes; shift ;; - -- ) # Stop option processing - shift; break ;; - - ) # Use stdin as input. - break ;; - -* ) - echo "${usage}" 1>&2; exit 1 ;; - * ) - break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -TEMPLATES="${AC_MACRODIR}/acconfig.h" -test -r $localdir/acconfig.h && TEMPLATES="${TEMPLATES} $localdir/acconfig.h" - -case $# in - 0) infile=configure.in ;; - 1) infile=$1 ;; - *) echo "$usage" >&2; exit 1 ;; -esac - -config_h=config.h -syms= -types= -funcs= -headers= -libs= - -if test "$localdir" != .; then - use_localdir="-I$localdir -DAC_LOCALDIR=$localdir" -else - use_localdir= -fi - -# Use the frozen version of Autoconf if available. -r= f= -# Some non-GNU m4's don't reject the --help option, so give them /dev/null. -case `$M4 --help < /dev/null 2>&1` in -*reload-state*) test -r $AC_MACRODIR/autoheader.m4f && { r=--reload f=f; } ;; -*traditional*) ;; -*) echo Autoconf requires GNU m4 1.1 or later >&2; exit 1 ;; -esac - -# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the -# modified autoconf processing of the input file. The sed hair is -# necessary to win for multi-line macro invocations. -eval "`$M4 -I$AC_MACRODIR $use_localdir $r autoheader.m4$f $infile | - sed -n -e ' - : again - /^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p - /^@@@/{ - s/^@@@//p - n - s/^/@@@/ - b again - }'`" - -# Make SYMS newline-separated rather than blank-separated, and remove dups. -# Start each symbol with a blank (to match the blank after "#undef") -# to reduce the possibility of mistakenly matching another symbol that -# is a substring of it. -syms="`for sym in $syms; do echo $sym; done | sort | uniq | sed 's@^@ @'`" - -if test $# -eq 0; then - tmpout=autoh$$ - trap "rm -f $tmpout; exit 1" 1 2 15 - exec > $tmpout -fi - -# Support "outfile[:infile]", defaulting infile="outfile.in". -case "$config_h" in -*:*) config_h_in=`echo "$config_h"|sed 's%.*:%%'` - config_h=`echo "$config_h"|sed 's%:.*%%'` ;; -*) config_h_in="${config_h}.in" ;; -esac - -# Don't write "do not edit" -- it will get copied into the -# config.h, which it's ok to edit. -echo "/* ${config_h_in}. Generated automatically from $infile by autoheader. */" - -test -r ${config_h}.top && cat ${config_h}.top -test -r $localdir/acconfig.h && - grep @TOP@ $localdir/acconfig.h >/dev/null && - sed '/@TOP@/,$d' $localdir/acconfig.h - -# This puts each template paragraph on its own line, separated by @s. -if test -n "$syms"; then - # Make sure the boundary of template files is also the boundary - # of the paragraph. Extra newlines don't hurt since they will - # be removed. - for t in $TEMPLATES; do cat $t; echo; echo; done | - # The sed script is suboptimal because it has to take care of - # some broken seds (e.g. AIX) that remove '\n' from the - # pattern/hold space if the line is empty. (junio@twinsun.com). - sed -n -e ' - /^[ ]*$/{ - x - s/\n/@/g - p - s/.*/@/ - x - } - H' | sed -e 's/@@*/@/g' | - # Select each paragraph that refers to a symbol we picked out above. - fgrep "$syms" | - tr @ \\012 -fi - -echo "$types" | tr , \\012 | sort | uniq | while read ctype; do - test -z "$ctype" && continue - # Solaris 2.3 tr rejects noncontiguous characters in character classes. - sym="`echo "${ctype}" | tr '[a-z] *' '[A-Z]_P'`" - echo " -/* The number of bytes in a ${ctype}. */ -#undef SIZEOF_${sym}" -done - -# /bin/sh on the Alpha gives `for' a random value if $funcs is empty. -if test -n "$funcs"; then - for func in `for x in $funcs; do echo $x; done | sort | uniq`; do - sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`" - echo " -/* Define if you have the ${func} function. */ -#undef HAVE_${sym}" - done -fi - -if test -n "$headers"; then - for header in `for x in $headers; do echo $x; done | sort | uniq`; do - sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`" - echo " -/* Define if you have the <${header}> header file. */ -#undef HAVE_${sym}" - done -fi - -if test -n "$libs"; then - for lib in `for x in $libs; do echo $x; done | sort | uniq`; do - sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`" - echo " -/* Define if you have the ${lib} library (-l${lib}). */ -#undef HAVE_LIB${sym}" - done -fi - -test -r $localdir/acconfig.h && - grep @BOTTOM@ $localdir/acconfig.h >/dev/null && - sed '1,/@BOTTOM@/d' $localdir/acconfig.h -test -f ${config_h}.bot && cat ${config_h}.bot - -status=0 - -if test -n "$syms"; then - for sym in $syms; do - if fgrep $sym $TEMPLATES >/dev/null; then - : # All is well. - else - echo "$0: Symbol \`${sym}' is not covered by $TEMPLATES" >&2 - status=1 - fi - done -fi - -if test $# -eq 0; then - if test $status -eq 0; then - if cmp -s $tmpout ${config_h_in}; then - rm -f $tmpout - else - mv -f $tmpout ${config_h_in} - fi - else - rm -f $tmpout - fi -fi - -exit $status diff --git a/util/autoconf/autoheader.m4 b/util/autoconf/autoheader.m4 deleted file mode 100644 index 62427d9..0000000 --- a/util/autoconf/autoheader.m4 +++ /dev/null @@ -1,84 +0,0 @@ -dnl Driver and redefinitions of some Autoconf macros for autoheader. -dnl This file is part of Autoconf. -dnl Copyright (C) 1994 Free Software Foundation, Inc. -dnl -dnl This program is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 2, or (at your option) -dnl any later version. -dnl -dnl This program is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this program; if not, write to the Free Software -dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -dnl -dnl Written by Roland McGrath. -dnl -include(acgeneral.m4)dnl -builtin(include, acspecific.m4)dnl -builtin(include, acoldnames.m4)dnl - -dnl These are alternate definitions of some macros, which produce -dnl strings in the output marked with "@@@" so we can easily extract -dnl the information we want. The `#' at the end of the first line of -dnl each definition seems to be necessary to prevent m4 from eating -dnl the newline, which makes the @@@ not always be at the beginning of -dnl a line. - -define([AC_CHECK_FUNCS], [# -@@@funcs="$funcs $1"@@@ -]) - -define([AC_CHECK_HEADERS], [# -@@@headers="$headers $1"@@@ -]) - -define([AC_CHECK_HEADERS_DIRENT], [# -@@@headers="$headers $1"@@@ -]) - -define([AC_CHECK_LIB], [# - ifelse([$3], , [ -@@@libs="$libs $1"@@@ -], [ -# If it was found, we do: -$3 -# If it was not found, we do: -$4 -]) -]) - -define([AC_HAVE_LIBRARY], [# -changequote(<<, >>)dnl -define(<<AC_LIB_NAME>>, dnl -patsubst(patsubst($1, <<lib\([^\.]*\)\.a>>, <<\1>>), <<-l>>, <<>>))dnl -changequote([, ])dnl - ifelse([$2], , [ -@@@libs="$libs AC_LIB_NAME"@@@ -], [ -# If it was found, we do: -$2 -# If it was not found, we do: -$3 -]) -]) - -define([AC_CHECK_SIZEOF], [# -@@@types="$types,$1"@@@ -]) - -define([AC_CONFIG_HEADER], [# -@@@config_h=$1@@@ -]) - -define([AC_DEFINE], [# -@@@syms="$syms $1"@@@ -]) - -define([AC_DEFINE_UNQUOTED], [# -@@@syms="$syms $1"@@@ -]) diff --git a/util/autoconf/autoheader.sh b/util/autoconf/autoheader.sh deleted file mode 100755 index 354d4d0..0000000 --- a/util/autoconf/autoheader.sh +++ /dev/null @@ -1,250 +0,0 @@ -#!/bin/sh -# autoheader -- create `config.h.in' from `configure.in' -# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# Written by Roland McGrath. - -# If given no args, create `config.h.in' from template file `configure.in'. -# With one arg, create a header file on standard output from -# the given template file. - -usage="\ -Usage: autoheader [-h] [--help] [-m dir] [--macrodir=dir] - [-l dir] [--localdir=dir] [--version] [template-file]" - -# NLS nuisances. -# Only set `LANG' and `LC_ALL' to "C" if already set. -# These must not be set unconditionally because not all systems understand -# e.g. LANG=C (notably SCO). -if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi -if test "${LANG+set}" = set; then LANG=C; export LANG; fi - -test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@ -test -z "${M4}" && M4=@M4@ -case "${M4}" in -/*) # Handle the case that m4 has moved since we were configured. - # It may have been found originally in a build directory. - test -f "${M4}" || M4=m4 ;; -esac - -localdir=. -show_version=no - -while test $# -gt 0 ; do - case "${1}" in - -h | --help | --h* ) - echo "${usage}"; exit 0 ;; - --localdir=* | --l*=* ) - localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -l | --localdir | --l*) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - localdir="${1}" - shift ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m* ) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - AC_MACRODIR="${1}" - shift ;; - --version | --v* ) - show_version=yes; shift ;; - -- ) # Stop option processing - shift; break ;; - - ) # Use stdin as input. - break ;; - -* ) - echo "${usage}" 1>&2; exit 1 ;; - * ) - break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -TEMPLATES="${AC_MACRODIR}/acconfig.h" -test -r $localdir/acconfig.h && TEMPLATES="${TEMPLATES} $localdir/acconfig.h" - -case $# in - 0) infile=configure.in ;; - 1) infile=$1 ;; - *) echo "$usage" >&2; exit 1 ;; -esac - -config_h=config.h -syms= -types= -funcs= -headers= -libs= - -if test "$localdir" != .; then - use_localdir="-I$localdir -DAC_LOCALDIR=$localdir" -else - use_localdir= -fi - -# Use the frozen version of Autoconf if available. -r= f= -# Some non-GNU m4's don't reject the --help option, so give them /dev/null. -case `$M4 --help < /dev/null 2>&1` in -*reload-state*) test -r $AC_MACRODIR/autoheader.m4f && { r=--reload f=f; } ;; -*traditional*) ;; -*) echo Autoconf requires GNU m4 1.1 or later >&2; exit 1 ;; -esac - -# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the -# modified autoconf processing of the input file. The sed hair is -# necessary to win for multi-line macro invocations. -eval "`$M4 -I$AC_MACRODIR $use_localdir $r autoheader.m4$f $infile | - sed -n -e ' - : again - /^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p - /^@@@/{ - s/^@@@//p - n - s/^/@@@/ - b again - }'`" - -# Make SYMS newline-separated rather than blank-separated, and remove dups. -# Start each symbol with a blank (to match the blank after "#undef") -# to reduce the possibility of mistakenly matching another symbol that -# is a substring of it. -syms="`for sym in $syms; do echo $sym; done | sort | uniq | sed 's@^@ @'`" - -if test $# -eq 0; then - tmpout=autoh$$ - trap "rm -f $tmpout; exit 1" 1 2 15 - exec > $tmpout -fi - -# Support "outfile[:infile]", defaulting infile="outfile.in". -case "$config_h" in -*:*) config_h_in=`echo "$config_h"|sed 's%.*:%%'` - config_h=`echo "$config_h"|sed 's%:.*%%'` ;; -*) config_h_in="${config_h}.in" ;; -esac - -# Don't write "do not edit" -- it will get copied into the -# config.h, which it's ok to edit. -echo "/* ${config_h_in}. Generated automatically from $infile by autoheader. */" - -test -r ${config_h}.top && cat ${config_h}.top -test -r $localdir/acconfig.h && - grep @TOP@ $localdir/acconfig.h >/dev/null && - sed '/@TOP@/,$d' $localdir/acconfig.h - -# This puts each template paragraph on its own line, separated by @s. -if test -n "$syms"; then - # Make sure the boundary of template files is also the boundary - # of the paragraph. Extra newlines don't hurt since they will - # be removed. - for t in $TEMPLATES; do cat $t; echo; echo; done | - # The sed script is suboptimal because it has to take care of - # some broken seds (e.g. AIX) that remove '\n' from the - # pattern/hold space if the line is empty. (junio@twinsun.com). - sed -n -e ' - /^[ ]*$/{ - x - s/\n/@/g - p - s/.*/@/ - x - } - H' | sed -e 's/@@*/@/g' | - # Select each paragraph that refers to a symbol we picked out above. - fgrep "$syms" | - tr @ \\012 -fi - -echo "$types" | tr , \\012 | sort | uniq | while read ctype; do - test -z "$ctype" && continue - # Solaris 2.3 tr rejects noncontiguous characters in character classes. - sym="`echo "${ctype}" | tr '[a-z] *' '[A-Z]_P'`" - echo " -/* The number of bytes in a ${ctype}. */ -#undef SIZEOF_${sym}" -done - -# /bin/sh on the Alpha gives `for' a random value if $funcs is empty. -if test -n "$funcs"; then - for func in `for x in $funcs; do echo $x; done | sort | uniq`; do - sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`" - echo " -/* Define if you have the ${func} function. */ -#undef HAVE_${sym}" - done -fi - -if test -n "$headers"; then - for header in `for x in $headers; do echo $x; done | sort | uniq`; do - sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`" - echo " -/* Define if you have the <${header}> header file. */ -#undef HAVE_${sym}" - done -fi - -if test -n "$libs"; then - for lib in `for x in $libs; do echo $x; done | sort | uniq`; do - sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`" - echo " -/* Define if you have the ${lib} library (-l${lib}). */ -#undef HAVE_LIB${sym}" - done -fi - -test -r $localdir/acconfig.h && - grep @BOTTOM@ $localdir/acconfig.h >/dev/null && - sed '1,/@BOTTOM@/d' $localdir/acconfig.h -test -f ${config_h}.bot && cat ${config_h}.bot - -status=0 - -if test -n "$syms"; then - for sym in $syms; do - if fgrep $sym $TEMPLATES >/dev/null; then - : # All is well. - else - echo "$0: Symbol \`${sym}' is not covered by $TEMPLATES" >&2 - status=1 - fi - done -fi - -if test $# -eq 0; then - if test $status -eq 0; then - if cmp -s $tmpout ${config_h_in}; then - rm -f $tmpout - else - mv -f $tmpout ${config_h_in} - fi - else - rm -f $tmpout - fi -fi - -exit $status diff --git a/util/autoconf/autoreconf b/util/autoconf/autoreconf deleted file mode 100755 index bc2d61b..0000000 --- a/util/autoconf/autoreconf +++ /dev/null @@ -1,127 +0,0 @@ -#!/bin/sh -# autoreconf - remake all Autoconf configure scripts in a directory tree -# Copyright (C) 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -usage="\ -Usage: autoreconf [-h] [--help] [-m dir] [--macrodir=dir] - [-l dir] [--localdir=dir] [--verbose] [--version]" - -localdir= -verbose=no -show_version=no - -test -z "$AC_MACRODIR" && AC_MACRODIR=/usr/local/share/autoconf - -while test $# -gt 0; do - case "$1" in - -h | --help | --h*) - echo "$usage"; exit 0 ;; - --localdir=* | --l*=* ) - localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -l | --localdir | --l*) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - localdir="${1}" - shift ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"$1\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m*) - shift - test $# -eq 0 && { echo "$usage" 1>&2; exit 1; } - AC_MACRODIR="$1" - shift ;; - --verbose | --verb*) - verbose=yes; shift ;; - --version | --vers*) - show_version=yes; shift ;; - --) # Stop option processing. - shift; break ;; - -*) echo "$usage" 1>&2; exit 1 ;; - *) break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -if test $# -ne 0; then - echo "$usage" 1>&2; exit 1 -fi - -top_autoconf=`echo $0|sed s%autoreconf%autoconf%` -top_autoheader=`echo $0|sed s%autoreconf%autoheader%` - -# The xargs grep filters out Cygnus configure.in files. -find . -name configure.in -print | -xargs grep -l AC_OUTPUT | -sed 's%/configure\.in$%%; s%^./%%' | -while read dir; do - ( - cd $dir || continue - - case "$dir" in - .) dots= ;; - *) # A "../" for each directory in /$dir. - dots=`echo /$dir|sed 's%/[^/]*%../%g'` ;; - esac - - case "$0" in - /*) autoconf=$top_autoconf; autoheader=$top_autoheader ;; - */*) autoconf=$dots$top_autoconf; autoheader=$dots$top_autoheader ;; - *) autoconf=$top_autoconf; autoheader=$top_autoheader ;; - esac - - case "$AC_MACRODIR" in - /*) macrodir_opt="--macrodir=$AC_MACRODIR" ;; - *) macrodir_opt="--macrodir=$dots$AC_MACRODIR" ;; - esac - - case "$localdir" in - "") localdir_opt= ;; - /*) localdir_opt="--localdir=$localdir" ;; - *) localdir_opt="--localdir=$dots$localdir" ;; - esac - - test $verbose = yes && echo running autoconf in $dir - $autoconf $macrodir_opt $localdir_opt - - if grep AC_CONFIG_HEADER configure.in >/dev/null; then - template=`sed -n '/AC_CONFIG_HEADER/{ -s%[^#]*AC_CONFIG_HEADER(\([^)]*\).*%\1% -t here -: here -s%.*:%% -t colon -s%$%.in% -: colon -p -q -}' configure.in` - if test ! -f $template || grep autoheader $template >/dev/null; then - test $verbose = yes && echo running autoheader in $dir - $autoheader $macrodir_opt $localdir_opt - fi - fi - ) -done - diff --git a/util/autoconf/autoreconf.sh b/util/autoconf/autoreconf.sh deleted file mode 100644 index 4b83f80..0000000 --- a/util/autoconf/autoreconf.sh +++ /dev/null @@ -1,149 +0,0 @@ -#!/bin/sh -# autoreconf - remake all Autoconf configure scripts in a directory tree -# Copyright (C) 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -usage="\ -Usage: autoreconf [-f] [-h] [--help] [-m dir] [--macrodir=dir] - [-l dir] [--localdir=dir] [--force] [--verbose] [--version]" - -localdir= -verbose=no -show_version=no -force=no - -test -z "$AC_MACRODIR" && AC_MACRODIR=@datadir@ - -while test $# -gt 0; do - case "$1" in - -h | --help | --h*) - echo "$usage"; exit 0 ;; - --localdir=* | --l*=* ) - localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -l | --localdir | --l*) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - localdir="${1}" - shift ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"$1\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m*) - shift - test $# -eq 0 && { echo "$usage" 1>&2; exit 1; } - AC_MACRODIR="$1" - shift ;; - --verbose | --verb*) - verbose=yes; shift ;; - -f | --force) - force=yes; shift ;; - --version | --vers*) - show_version=yes; shift ;; - --) # Stop option processing. - shift; break ;; - -*) echo "$usage" 1>&2; exit 1 ;; - *) break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -if test $# -ne 0; then - echo "$usage" 1>&2; exit 1 -fi - -top_autoconf=`echo $0|sed s%autoreconf%autoconf%` -top_autoheader=`echo $0|sed s%autoreconf%autoheader%` - -# The xargs grep filters out Cygnus configure.in files. -find . -name configure.in -print | -xargs grep -l AC_OUTPUT | -sed 's%/configure\.in$%%; s%^./%%' | -while read dir; do - ( - cd $dir || continue - - case "$dir" in - .) dots= ;; - *) # A "../" for each directory in /$dir. - dots=`echo /$dir|sed 's%/[^/]*%../%g'` ;; - esac - - case "$0" in - /*) autoconf=$top_autoconf; autoheader=$top_autoheader ;; - */*) autoconf=$dots$top_autoconf; autoheader=$dots$top_autoheader ;; - *) autoconf=$top_autoconf; autoheader=$top_autoheader ;; - esac - - case "$AC_MACRODIR" in - /*) macrodir_opt="--macrodir=$AC_MACRODIR" ;; - *) macrodir_opt="--macrodir=$dots$AC_MACRODIR" ;; - esac - - case "$localdir" in - "") localdir_opt= - aclocal=aclocal.m4 ;; - /*) localdir_opt="--localdir=$localdir" - aclocal=$localdir/aclocal.m4 ;; - *) localdir_opt="--localdir=$dots$localdir" - aclocal=$dots$localdir/aclocal.m4 ;; - esac - - test ! -f $aclocal && aclocal= - - if test $force = no && test -f configure && - ls -lt configure configure.in $aclocal | sed 1q | - grep 'configure$' > /dev/null - then - : - else - test $verbose = yes && echo running autoconf in $dir - $autoconf $macrodir_opt $localdir_opt - fi - - if grep AC_CONFIG_HEADER configure.in >/dev/null; then - template=`sed -n '/AC_CONFIG_HEADER/{ -s%[^#]*AC_CONFIG_HEADER(\([^)]*\).*%\1% -t here -: here -s%.*:%% -t colon -s%$%.in% -: colon -p -q -}' configure.in` - if test ! -f $template || grep autoheader $template >/dev/null; then - if test $force = no && test -f $template && - ls -lt $template configure.in $aclocal | sed 1q | - grep "$template$" > /dev/null - then - : - else - test $verbose = yes && echo running autoheader in $dir - $autoheader $macrodir_opt $localdir_opt - fi - fi - fi - ) -done - diff --git a/util/autoconf/autoscan b/util/autoconf/autoscan deleted file mode 100755 index 74debe5..0000000 --- a/util/autoconf/autoscan +++ /dev/null @@ -1,393 +0,0 @@ -#!/usr/athena/bin/perl -# autoscan - Create configure.scan (a preliminary configure.in) for a package. -# Copyright (C) 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# Written by David MacKenzie <djm@gnu.ai.mit.edu>. - -require "find.pl"; - -$datadir = $ENV{"AC_MACRODIR"} || "/usr/local/share/autoconf"; -$verbose = 0; -# Reference these variables to pacify perl -w. -undef %identifiers_macros; -undef %makevars_macros; -undef %programs_macros; - -&parse_args; -&init_tables; -&find('.'); -&scan_files; -&output; - -exit 0; - -# Process any command line arguments. -sub parse_args -{ - local ($usage) = - "Usage: autoscan [--macrodir=dir] [--help] [--verbose] [--version] [srcdir]\n"; - - foreach $_ (@ARGV) { - if (/^--m[a-z]*=(.*)/) { - $datadir = $1; - } elsif (/^--h/) { - print "$usage"; - exit 0; - } elsif (/^--verb/) { - $verbose = 1; - } elsif (/^--vers/) { - &version; - } elsif (/^[^-]/) { - die "$usage" if defined($srcdir); - # Top level directory of the package being autoscanned. - $srcdir = $_; - } else { - die "$usage"; - } - } - - $srcdir="." if !defined($srcdir); - - print "srcdir=$srcdir\n" if $verbose; - chdir $srcdir || die "$0: cannot cd to $srcdir: $!\n"; - - open(CONF, ">configure.scan") || - die "$0: cannot create configure.scan: $!\n"; -} - -# Print the version number and exit. -sub version -{ - open(ACG, "<$datadir/acgeneral.m4") || - die "$0: cannot open $datadir/acgeneral.m4: $!\n"; - while (<ACG>) { - if (/define.AC_ACVERSION.\s*([0-9.]+)/) { - print "Autoconf version $1\n"; - exit 0; - } - } - die "Autoconf version unknown\n"; -} - -# Put values in the tables of what to do with each token. -sub init_tables -{ - local($kind, $word, $macro); - - # Initialize a table of C keywords (to ignore). - # Taken from K&R 1st edition p. 180. - # ANSI C, GNU C, and C++ keywords can introduce portability problems, - # so don't ignore them. - foreach $word ('int', 'char', 'float', 'double', 'struct', 'union', - 'long', 'short', 'unsigned', 'auto', 'extern', 'register', - 'typedef', 'static', 'goto', 'return', 'sizeof', 'break', - 'continue', 'if', 'else', 'for', 'do', 'while', 'switch', - 'case', 'default') { - $c_keywords{$word} = 0; - } - - # The data file format supports only one line of macros per function. - # If more than that is required for a common portability problem, - # a new Autoconf macro should probably be written for that case, - # instead of duplicating the code in lots of configure.in files. - - foreach $kind ('functions', 'headers', 'identifiers', 'programs', - 'makevars') { - open(TABLE, "<$datadir/ac$kind") || - die "$0: cannot open $datadir/ac$kind: $!\n"; - while (<TABLE>) { - next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments. - ($word, $macro) = split; - eval "\$$kind" . "_macros{\$word} = \$macro"; - } - close(TABLE); - } -} - -# Collect names of various kinds of files in the package. -# Called by &find on each file. -sub wanted -{ - if (/^.*\.[chlymC]$/ || /^.*\.cc$/) { - $name =~ s?^\./??; push(@cfiles, $name); - } - elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) { - $name =~ s?^\./??; push(@makefiles, $name); - } - elsif (/^.*\.sh$/) { - $name =~ s?^\./??; push(@shfiles, $name); - } -} - -# Read through the files and collect lists of tokens in them -# that might create nonportabilities. -sub scan_files -{ - $initfile = $cfiles[0]; # Pick one at random. - - if ($verbose) { - print "cfiles:", join(" ", @cfiles), "\n"; - print "makefiles:", join(" ", @makefiles), "\n"; - print "shfiles:", join(" ", @shfiles), "\n"; - } - - foreach $file (@cfiles) { - &scan_c_file($file); - } - - foreach $file (@makefiles) { - &scan_makefile($file); - } - - foreach $file (@shfiles) { - &scan_sh_file($file); - } -} - -sub scan_c_file -{ - local($file) = @_; - local($in_comment) = 0; # Nonzero if in a multiline comment. - - open(CFILE, "<$file") || die "$0: cannot open $file: $!\n"; - while (<CFILE>) { - # Strip out comments, approximately. - # Ending on this line. - if ($in_comment && m,\*/,) { - s,.*\*/,,; - $in_comment = 0; - } - # All on one line. - s,/\*.*\*/,,g; - # Starting on this line. - if (m,/\*,) { - $in_comment = 1; - } - # Continuing on this line. - next if $in_comment; - - # Preprocessor directives. - if (/^\s*#\s*include\s*<([^>]*)>/) { - $headers{$1}++; - } - # Ignore other preprocessor directives. - next if /^\s*#/; - - # Remove string and character constants. - s,\"[^\"]*\",,g; - s,\'[^\']*\',,g; - - # Tokens in the code. - # Maybe we should ignore function definitions (in column 0)? - while (s/\W([a-zA-Z_]\w*)\s*\(/ /) { - $functions{$1}++ if !defined($c_keywords{$1}); - } - while (s/\W([a-zA-Z_]\w*)\W/ /) { - $identifiers{$1}++ if !defined($c_keywords{$1}); - } - } - close(CFILE); - - if ($verbose) { - local($word); - - print "\n$file functions:\n"; - foreach $word (sort keys %functions) { - print "$word $functions{$word}\n"; - } - - print "\n$file identifiers:\n"; - foreach $word (sort keys %identifiers) { - print "$word $identifiers{$word}\n"; - } - - print "\n$file headers:\n"; - foreach $word (sort keys %headers) { - print "$word $headers{$word}\n"; - } - } -} - -sub scan_makefile -{ - local($file) = @_; - - open(MFILE, "<$file") || die "$0: cannot open $file: $!\n"; - while (<MFILE>) { - # Strip out comments and variable references. - s/#.*//; - s/\$\([^\)]*\)//g; - s/\${[^\}]*}//g; - s/@[^@]*@//g; - - # Variable assignments. - while (s/\W([a-zA-Z_]\w*)\s*=/ /) { - $makevars{$1}++; - } - # Libraries. - while (s/\W-l([a-zA-Z_]\w*)\W/ /) { - $libraries{$1}++; - } - # Tokens in the code. - while (s/\W([a-zA-Z_]\w*)\W/ /) { - $programs{$1}++; - } - } - close(MFILE); - - if ($verbose) { - local($word); - - print "\n$file makevars:\n"; - foreach $word (sort keys %makevars) { - print "$word $makevars{$word}\n"; - } - - print "\n$file libraries:\n"; - foreach $word (sort keys %libraries) { - print "$word $libraries{$word}\n"; - } - - print "\n$file programs:\n"; - foreach $word (sort keys %programs) { - print "$word $programs{$word}\n"; - } - } -} - -sub scan_sh_file -{ - local($file) = @_; - - open(MFILE, "<$file") || die "$0: cannot open $file: $!\n"; - while (<MFILE>) { - # Strip out comments and variable references. - s/#.*//; - s/\${[^\}]*}//g; - s/@[^@]*@//g; - - # Tokens in the code. - while (s/\W([a-zA-Z_]\w*)\W/ /) { - $programs{$1}++; - } - } - close(MFILE); - - if ($verbose) { - local($word); - - print "\n$file programs:\n"; - foreach $word (sort keys %programs) { - print "$word $programs{$word}\n"; - } - } -} - -# Print a configure.in. -sub output -{ - local (%unique_makefiles); - - print CONF "dnl Process this file with autoconf to produce a configure script.\n"; - print CONF "AC_INIT($initfile)\n"; - - &output_programs; - &output_headers; - &output_identifiers; - &output_functions; - - # Change DIR/Makefile.in to DIR/Makefile. - foreach $_ (@makefiles) { - s/\.in$//; - $unique_makefiles{$_}++; - } - print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n"; - - close CONF; -} - -# Print Autoconf macro $1 if it's not undef and hasn't been printed already. -sub print_unique -{ - local($macro) = @_; - - if (defined($macro) && !defined($printed{$macro})) { - print CONF "$macro\n"; - $printed{$macro} = 1; - } -} - -sub output_programs -{ - local ($word); - - print CONF "\ndnl Checks for programs.\n"; - foreach $word (sort keys %programs) { - &print_unique($programs_macros{$word}); - } - foreach $word (sort keys %makevars) { - &print_unique($makevars_macros{$word}); - } - print CONF "\ndnl Checks for libraries.\n"; - foreach $word (sort keys %libraries) { - print CONF "AC_HAVE_LIBRARY($word)\n"; - } -} - -sub output_headers -{ - local ($word); - - print CONF "\ndnl Checks for header files.\n"; - foreach $word (sort keys %headers) { - if (defined($headers_macros{$word}) && - $headers_macros{$word} eq 'AC_CHECK_HEADERS') { - push(@have_headers, $word); - } else { - &print_unique($headers_macros{$word}); - } - } - print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n" - if defined(@have_headers); -} - -sub output_identifiers -{ - local ($word); - - print CONF "\ndnl Checks for typedefs, structures, and compiler characteristics.\n"; - foreach $word (sort keys %identifiers) { - &print_unique($identifiers_macros{$word}); - } -} - -sub output_functions -{ - local ($word); - - print CONF "\ndnl Checks for library functions.\n"; - foreach $word (sort keys %functions) { - if (defined($functions_macros{$word}) && - $functions_macros{$word} eq 'AC_CHECK_FUNCS') { - push(@have_funcs, $word); - } else { - &print_unique($functions_macros{$word}); - } - } - print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n" - if defined(@have_funcs); -} diff --git a/util/autoconf/autoscan.pl b/util/autoconf/autoscan.pl deleted file mode 100644 index 9f26bfb..0000000 --- a/util/autoconf/autoscan.pl +++ /dev/null @@ -1,394 +0,0 @@ -#!@PERL@ -# autoscan - Create configure.scan (a preliminary configure.in) for a package. -# Copyright (C) 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# Written by David MacKenzie <djm@gnu.ai.mit.edu>. - -require "find.pl"; - -$datadir = $ENV{"AC_MACRODIR"} || "@datadir@"; -$verbose = 0; -# Reference these variables to pacify perl -w. -undef %identifiers_macros; -undef %makevars_macros; -undef %programs_macros; - -&parse_args; -&init_tables; -&find('.'); -&scan_files; -&output; - -exit 0; - -# Process any command line arguments. -sub parse_args -{ - local ($usage) = - "Usage: autoscan [--macrodir=dir] [--help] [--verbose] [--version] [srcdir]\n"; - - foreach $_ (@ARGV) { - if (/^--m[a-z]*=(.*)/) { - $datadir = $1; - } elsif (/^--h/) { - print "$usage"; - exit 0; - } elsif (/^--verb/) { - $verbose = 1; - } elsif (/^--vers/) { - &version; - } elsif (/^[^-]/) { - die "$usage" if defined($srcdir); - # Top level directory of the package being autoscanned. - $srcdir = $_; - } else { - die "$usage"; - } - } - - $srcdir="." if !defined($srcdir); - - print "srcdir=$srcdir\n" if $verbose; - chdir $srcdir || die "$0: cannot cd to $srcdir: $!\n"; - - open(CONF, ">configure.scan") || - die "$0: cannot create configure.scan: $!\n"; -} - -# Print the version number and exit. -sub version -{ - open(ACG, "<$datadir/acgeneral.m4") || - die "$0: cannot open $datadir/acgeneral.m4: $!\n"; - while (<ACG>) { - if (/define.AC_ACVERSION.\s*([0-9.]+)/) { - print "Autoconf version $1\n"; - exit 0; - } - } - die "Autoconf version unknown\n"; -} - -# Put values in the tables of what to do with each token. -sub init_tables -{ - local($kind, $word, $macro); - - # Initialize a table of C keywords (to ignore). - # Taken from K&R 1st edition p. 180. - # ANSI C, GNU C, and C++ keywords can introduce portability problems, - # so don't ignore them. - foreach $word ('int', 'char', 'float', 'double', 'struct', 'union', - 'long', 'short', 'unsigned', 'auto', 'extern', 'register', - 'typedef', 'static', 'goto', 'return', 'sizeof', 'break', - 'continue', 'if', 'else', 'for', 'do', 'while', 'switch', - 'case', 'default') { - $c_keywords{$word} = 0; - } - - # The data file format supports only one line of macros per function. - # If more than that is required for a common portability problem, - # a new Autoconf macro should probably be written for that case, - # instead of duplicating the code in lots of configure.in files. - - foreach $kind ('functions', 'headers', 'identifiers', 'programs', - 'makevars') { - open(TABLE, "<$datadir/ac$kind") || - die "$0: cannot open $datadir/ac$kind: $!\n"; - while (<TABLE>) { - next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments. - ($word, $macro) = split; - eval "\$$kind" . "_macros{\$word} = \$macro"; - } - close(TABLE); - } -} - -# Collect names of various kinds of files in the package. -# Called by &find on each file. -sub wanted -{ - if (/^.*\.[chlymC]$/ || /^.*\.cc$/) { - $name =~ s?^\./??; push(@cfiles, $name); - } - elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) { - $name =~ s?^\./??; push(@makefiles, $name); - } - elsif (/^.*\.sh$/) { - $name =~ s?^\./??; push(@shfiles, $name); - } -} - -# Read through the files and collect lists of tokens in them -# that might create nonportabilities. -sub scan_files -{ - $initfile = $cfiles[0]; # Pick one at random. - - if ($verbose) { - print "cfiles:", join(" ", @cfiles), "\n"; - print "makefiles:", join(" ", @makefiles), "\n"; - print "shfiles:", join(" ", @shfiles), "\n"; - } - - foreach $file (@cfiles) { - &scan_c_file($file); - } - - foreach $file (@makefiles) { - &scan_makefile($file); - } - - foreach $file (@shfiles) { - &scan_sh_file($file); - } -} - -sub scan_c_file -{ - local($file) = @_; - local($in_comment) = 0; # Nonzero if in a multiline comment. - - open(CFILE, "<$file") || die "$0: cannot open $file: $!\n"; - while (<CFILE>) { - # Strip out comments, approximately. - # Ending on this line. - if ($in_comment && m,\*/,) { - s,.*\*/,,; - $in_comment = 0; - } - # All on one line. - s,/\*.*\*/,,g; - # Starting on this line. - if (m,/\*,) { - $in_comment = 1; - } - # Continuing on this line. - next if $in_comment; - - # Preprocessor directives. - if (/^\s*#\s*include\s*<([^>]*)>/) { - $headers{$1}++; - } - # Ignore other preprocessor directives. - next if /^\s*#/; - - # Remove string and character constants. - s,\"[^\"]*\",,g; - s,\'[^\']*\',,g; - - # Tokens in the code. - # Maybe we should ignore function definitions (in column 0)? - while (s/\W([a-zA-Z_]\w*)\s*\(/ /) { - $functions{$1}++ if !defined($c_keywords{$1}); - } - while (s/\W([a-zA-Z_]\w*)\W/ /) { - $identifiers{$1}++ if !defined($c_keywords{$1}); - } - } - close(CFILE); - - if ($verbose) { - local($word); - - print "\n$file functions:\n"; - foreach $word (sort keys %functions) { - print "$word $functions{$word}\n"; - } - - print "\n$file identifiers:\n"; - foreach $word (sort keys %identifiers) { - print "$word $identifiers{$word}\n"; - } - - print "\n$file headers:\n"; - foreach $word (sort keys %headers) { - print "$word $headers{$word}\n"; - } - } -} - -sub scan_makefile -{ - local($file) = @_; - - open(MFILE, "<$file") || die "$0: cannot open $file: $!\n"; - while (<MFILE>) { - # Strip out comments and variable references. - s/#.*//; - s/\$\([^\)]*\)//g; - s/\${[^\}]*}//g; - s/@[^@]*@//g; - - # Variable assignments. - while (s/\W([a-zA-Z_]\w*)\s*=/ /) { - $makevars{$1}++; - } - # Libraries. - while (s/\W-l([a-zA-Z_]\w*)\W/ /) { - $libraries{$1}++; - } - # Tokens in the code. - while (s/\W([a-zA-Z_]\w*)\W/ /) { - $programs{$1}++; - } - } - close(MFILE); - - if ($verbose) { - local($word); - - print "\n$file makevars:\n"; - foreach $word (sort keys %makevars) { - print "$word $makevars{$word}\n"; - } - - print "\n$file libraries:\n"; - foreach $word (sort keys %libraries) { - print "$word $libraries{$word}\n"; - } - - print "\n$file programs:\n"; - foreach $word (sort keys %programs) { - print "$word $programs{$word}\n"; - } - } -} - -sub scan_sh_file -{ - local($file) = @_; - - open(MFILE, "<$file") || die "$0: cannot open $file: $!\n"; - while (<MFILE>) { - # Strip out comments and variable references. - s/#.*//; - s/\${[^\}]*}//g; - s/@[^@]*@//g; - - # Tokens in the code. - while (s/\W([a-zA-Z_]\w*)\W/ /) { - $programs{$1}++; - } - } - close(MFILE); - - if ($verbose) { - local($word); - - print "\n$file programs:\n"; - foreach $word (sort keys %programs) { - print "$word $programs{$word}\n"; - } - } -} - -# Print a configure.in. -sub output -{ - local (%unique_makefiles); - - print CONF "dnl Process this file with autoconf to produce a configure script.\n"; - print CONF "AC_INIT($initfile)\n"; - - &output_programs; - &output_headers; - &output_identifiers; - &output_functions; - - # Change DIR/Makefile.in to DIR/Makefile. - foreach $_ (@makefiles) { - s/\.in$//; - $unique_makefiles{$_}++; - } - print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n"; - - close CONF; -} - -# Print Autoconf macro $1 if it's not undef and hasn't been printed already. -sub print_unique -{ - local($macro) = @_; - - if (defined($macro) && !defined($printed{$macro})) { - print CONF "$macro\n"; - $printed{$macro} = 1; - } -} - -sub output_programs -{ - local ($word); - - print CONF "\ndnl Checks for programs.\n"; - foreach $word (sort keys %programs) { - &print_unique($programs_macros{$word}); - } - foreach $word (sort keys %makevars) { - &print_unique($makevars_macros{$word}); - } - print CONF "\ndnl Checks for libraries.\n"; - foreach $word (sort keys %libraries) { - print CONF "dnl Replace `\main\' with a function in -l$word:\n"; - print CONF "AC_CHECK_LIB($word, main)\n"; - } -} - -sub output_headers -{ - local ($word); - - print CONF "\ndnl Checks for header files.\n"; - foreach $word (sort keys %headers) { - if (defined($headers_macros{$word}) && - $headers_macros{$word} eq 'AC_CHECK_HEADERS') { - push(@have_headers, $word); - } else { - &print_unique($headers_macros{$word}); - } - } - print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n" - if defined(@have_headers); -} - -sub output_identifiers -{ - local ($word); - - print CONF "\ndnl Checks for typedefs, structures, and compiler characteristics.\n"; - foreach $word (sort keys %identifiers) { - &print_unique($identifiers_macros{$word}); - } -} - -sub output_functions -{ - local ($word); - - print CONF "\ndnl Checks for library functions.\n"; - foreach $word (sort keys %functions) { - if (defined($functions_macros{$word}) && - $functions_macros{$word} eq 'AC_CHECK_FUNCS') { - push(@have_funcs, $word); - } else { - &print_unique($functions_macros{$word}); - } - } - print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n" - if defined(@have_funcs); -} diff --git a/util/autoconf/autoupdate b/util/autoconf/autoupdate deleted file mode 100755 index b69f61b..0000000 --- a/util/autoconf/autoupdate +++ /dev/null @@ -1,112 +0,0 @@ -#!/bin/sh -# autoupdate - modernize a configure.in -# Copyright (C) 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# If given no args, update `configure.in'; -# With one arg, write on the standard output from the given template file. -# -# Written by David MacKenzie <djm@gnu.ai.mit.edu> - -usage="\ -Usage: autoupdate [-h] [--help] [-m dir] [--macrodir=dir] - [--version] [template-file]" - -sedtmp=/tmp/acups.$$ -# For debugging. -#sedtmp=/tmp/acups -show_version=no -test -z "${AC_MACRODIR}" && AC_MACRODIR=/usr/local/share/autoconf - -while test $# -gt 0 ; do - case "${1}" in - -h | --help | --h* ) - echo "${usage}" 1>&2; exit 0 ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m* ) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - AC_MACRODIR="${1}" - shift ;; - --version | --versio | --versi | --vers) - show_version=yes; shift ;; - -- ) # Stop option processing - shift; break ;; - - ) # Use stdin as input. - break ;; - -* ) - echo "${usage}" 1>&2; exit 1 ;; - * ) - break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -: ${SIMPLE_BACKUP_SUFFIX='~'} - -tmpout=acupo.$$ -trap 'rm -f $sedtmp $tmpout; exit 1' 1 2 15 -case $# in - 0) infile=configure.in; out="> $tmpout" - # Make sure $infile can be read, and $tmpout has the same permissions. - cp $infile $tmpout || exit - - # Make sure $infile can be written. - if test ! -w $infile; then - rm -f $tmpout - echo "$0: $infile: cannot write" >&2 - exit 1 - fi - ;; - 1) infile="$1"; out= ;; - *) echo "$usage" >&2; exit 1 ;; -esac - -# Turn the m4 macro file into a sed script. -# For each old macro name, make one substitution command to replace it -# at the end of a line, and one when followed by ( or whitespace. -# That is easier than splitting the macros up into those that take -# arguments and those that don't. -sed -n -e ' -/^AC_DEFUN(/ { - s//s%/ - s/, *\[indir(\[/$%/ - s/\].*/%/ - p - s/\$// - s/%/^/ - s/%/\\([( ]\\)^/ - s/%/\\1^/ - s/\^/%/g - p -}' ${AC_MACRODIR}/acoldnames.m4 > $sedtmp -eval sed -f $sedtmp $infile $out - -case $# in - 0) mv configure.in configure.in${SIMPLE_BACKUP_SUFFIX} && - mv $tmpout configure.in ;; -esac - -rm -f $sedtmp $tmpout -exit 0 diff --git a/util/autoconf/autoupdate.sh b/util/autoconf/autoupdate.sh deleted file mode 100644 index 8fd1442..0000000 --- a/util/autoconf/autoupdate.sh +++ /dev/null @@ -1,112 +0,0 @@ -#!/bin/sh -# autoupdate - modernize a configure.in -# Copyright (C) 1994 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# If given no args, update `configure.in'; -# With one arg, write on the standard output from the given template file. -# -# Written by David MacKenzie <djm@gnu.ai.mit.edu> - -usage="\ -Usage: autoupdate [-h] [--help] [-m dir] [--macrodir=dir] - [--version] [template-file]" - -sedtmp=/tmp/acups.$$ -# For debugging. -#sedtmp=/tmp/acups -show_version=no -test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@ - -while test $# -gt 0 ; do - case "${1}" in - -h | --help | --h* ) - echo "${usage}" 1>&2; exit 0 ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m* ) - shift - test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } - AC_MACRODIR="${1}" - shift ;; - --version | --versio | --versi | --vers) - show_version=yes; shift ;; - -- ) # Stop option processing - shift; break ;; - - ) # Use stdin as input. - break ;; - -* ) - echo "${usage}" 1>&2; exit 1 ;; - * ) - break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -: ${SIMPLE_BACKUP_SUFFIX='~'} - -tmpout=acupo.$$ -trap 'rm -f $sedtmp $tmpout; exit 1' 1 2 15 -case $# in - 0) infile=configure.in; out="> $tmpout" - # Make sure $infile can be read, and $tmpout has the same permissions. - cp $infile $tmpout || exit - - # Make sure $infile can be written. - if test ! -w $infile; then - rm -f $tmpout - echo "$0: $infile: cannot write" >&2 - exit 1 - fi - ;; - 1) infile="$1"; out= ;; - *) echo "$usage" >&2; exit 1 ;; -esac - -# Turn the m4 macro file into a sed script. -# For each old macro name, make one substitution command to replace it -# at the end of a line, and one when followed by ( or whitespace. -# That is easier than splitting the macros up into those that take -# arguments and those that don't. -sed -n -e ' -/^AC_DEFUN(/ { - s//s%/ - s/, *\[indir(\[/$%/ - s/\].*/%/ - p - s/\$// - s/%/^/ - s/%/\\([( ]\\)^/ - s/%/\\1^/ - s/\^/%/g - p -}' ${AC_MACRODIR}/acoldnames.m4 > $sedtmp -eval sed -f $sedtmp $infile $out - -case $# in - 0) mv configure.in configure.in${SIMPLE_BACKUP_SUFFIX} && - mv $tmpout configure.in ;; -esac - -rm -f $sedtmp $tmpout -exit 0 diff --git a/util/autoconf/config.cache b/util/autoconf/config.cache deleted file mode 100644 index 4f62b19..0000000 --- a/util/autoconf/config.cache +++ /dev/null @@ -1,17 +0,0 @@ -# This file is a shell script that caches the results of configure -# tests run on this system so they can be shared between configure -# scripts and configure runs. It is not useful on other systems. -# If it contains results you don't want to keep, you may remove or edit it. -# -# By default, configure uses ./config.cache as the cache file, -# creating it if it does not exist already. You can give configure -# the --cache-file=FILE option to use a different cache file; that is -# what configure does when it calls configure scripts in -# subdirectories, so they share the cache. -# Giving --cache-file=/dev/null disables caching, for debugging configure. -# config.status only pays attention to the cache file if you give it the -# --recheck option to rerun configure. -# -: ${ac_cv_path_M4='/mit/gnu/rsaixbin/gm4'} -: ${ac_cv_path_PERL='/usr/athena/bin/perl'} -: ${ac_cv_path_install='/usr/athena/bin/install -c'} diff --git a/util/autoconf/config.guess b/util/autoconf/config.guess deleted file mode 100755 index bc2cbcb..0000000 --- a/util/autoconf/config.guess +++ /dev/null @@ -1,470 +0,0 @@ -#!/bin/sh -# Attempt to guess a canonical system name. -# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. -# -# This file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Written by Per Bothner <bothner@cygnus.com>. -# The master version of this file is at the FSF in /home/gd/gnu/lib. -# -# This script attempts to guess a canonical system name similar to -# config.sub. If it succeeds, it prints the system name on stdout, and -# exits with 0. Otherwise, it exits with 1. -# -# The plan is that this can be called by configure scripts if you -# don't specify an explicit system type (host/target name). -# -# Only a few systems have been added to this list; please add others -# (but try to keep the structure clean). -# - -# This is needed to find uname on a Pyramid OSx when run in the BSD universe. -# (ghazi@noc.rutgers.edu 8/24/94.) -if (test -f /.attbin/uname) >/dev/null 2>&1 ; then - PATH=$PATH:/.attbin ; export PATH -fi - -UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown -UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown -UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown -UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown - -trap 'rm -f dummy.c dummy.o dummy; exit 1' 1 2 15 - -# Note: order is significant - the case branches are not exclusive. - -case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in - alpha:OSF1:V*:*) - # After 1.2, OSF1 uses "V1.3" for uname -r. - echo alpha-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^V//'` - exit 0 ;; - alpha:OSF1:*:*) - # 1.2 uses "1.2" for uname -r. - echo alpha-dec-osf${UNAME_RELEASE} - exit 0 ;; - arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) - echo arm-acorn-riscix${UNAME_RELEASE} - exit 0;; - Pyramid*:OSx*:*:*) - if test "`(/bin/universe) 2>/dev/null`" = att ; then - echo pyramid-pyramid-sysv3 - else - echo pyramid-pyramid-bsd - fi - exit 0 ;; - sun4*:SunOS:5.*:*) - echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit 0 ;; - sun4*:SunOS:6*:*) - # According to config.sub, this is the proper way to canonicalize - # SunOS6. Hard to guess exactly what SunOS6 will be like, but - # it's likely to be more like Solaris than SunOS4. - echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit 0 ;; - sun4*:SunOS:*:*) - # Japanese Language versions have a version number like `4.1.3-JL'. - echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` - exit 0 ;; - sun3*:SunOS:*:*) - echo m68k-sun-sunos${UNAME_RELEASE} - exit 0 ;; - RISC*:ULTRIX:*:*) - echo mips-dec-ultrix${UNAME_RELEASE} - exit 0 ;; - VAX*:ULTRIX*:*:*) - echo vax-dec-ultrix${UNAME_RELEASE} - exit 0 ;; - mips:*:5*:RISCos) - echo mips-mips-riscos${UNAME_RELEASE} - exit 0 ;; - m88k:CX/UX:7*:*) - echo m88k-harris-cxux7 - exit 0 ;; - m88k:*:4*:R4*) - echo m88k-motorola-sysv4 - exit 0 ;; - m88k:*:3*:R3*) - echo m88k-motorola-sysv3 - exit 0 ;; - AViiON:dgux:*:*) - if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx \ - -o ${TARGET_BINARY_INTERFACE}x = x ] ; then - echo m88k-dg-dgux${UNAME_RELEASE} - else - echo m88k-dg-dguxbcs${UNAME_RELEASE} - fi - exit 0 ;; - M88*:DolphinOS:*:*) # DolphinOS (SVR3) - echo m88k-dolphin-sysv3 - exit 0 ;; - M88*:*:R3*:*) - # Delta 88k system running SVR3 - echo m88k-motorola-sysv3 - exit 0 ;; - XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) - echo m88k-tektronix-sysv3 - exit 0 ;; - Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) - echo m68k-tektronix-bsd - exit 0 ;; - *:IRIX:*:*) - echo mips-sgi-irix${UNAME_RELEASE} - exit 0 ;; - i[34]86:AIX:*:*) - echo i386-ibm-aix - exit 0 ;; - *:AIX:2:3) - if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then - sed 's/^ //' << EOF >dummy.c - #include <sys/systemcfg.h> - - main() - { - if (!__power_pc()) - exit(1); - puts("powerpc-ibm-aix3.2.5"); - exit(0); - } -EOF - ${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0 - rm -f dummy.c dummy - echo rs6000-ibm-aix3.2.5 - elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then - echo rs6000-ibm-aix3.2.4 - else - echo rs6000-ibm-aix3.2 - fi - exit 0 ;; - *:AIX:*:4) - if /usr/sbin/lsattr -EHl proc0 | grep POWER >/dev/null 2>&1; then - IBM_ARCH=rs6000 - else - IBM_ARCH=powerpc - fi - if grep bos410 /usr/include/stdio.h >/dev/null 2>&1; then - IBM_REV=4.1 - elif grep bos411 /usr/include/stdio.h >/dev/null 2>&1; then - IBM_REV=4.1.1 - else - IBM_REV=4.${UNAME_RELEASE} - fi - echo ${IBM_ARCH}-ibm-aix${IBM_REV} - exit 0 ;; - *:AIX:*:*) - echo rs6000-ibm-aix - exit 0 ;; - *:BOSX:*:*) - echo rs6000-bull-bosx - exit 0 ;; - DPX/2?00:B.O.S.:*:*) - echo m68k-bull-sysv3 - exit 0 ;; - 9000/[34]??:4.3bsd:1.*:*) - echo m68k-hp-bsd - exit 0 ;; - hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) - echo m68k-hp-bsd4.4 - exit 0 ;; - 9000/[3478]??:HP-UX:*:*) - case "${UNAME_MACHINE}" in - 9000/31? ) HP_ARCH=m68000 ;; - 9000/[34]?? ) HP_ARCH=m68k ;; - 9000/7?? | 9000/8?7 ) HP_ARCH=hppa1.1 ;; - 9000/8?? ) HP_ARCH=hppa1.0 ;; - esac - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - echo ${HP_ARCH}-hp-hpux${HPUX_REV} - exit 0 ;; - 3050*:HI-UX:*:*) - sed 's/^ //' << EOF >dummy.c - #include <unistd.h> - int - main () - { - long cpu = sysconf (_SC_CPU_VERSION); - /* The order matters, because CPU_IS_HP_MC68K erroneously returns - true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - ${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0 - rm -f dummy.c dummy - echo unknown-hitachi-hiuxwe2 - exit 0 ;; - 9000/7??:4.3bsd:*:* | 9000/8?7:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit 0 ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit 0 ;; - hp7??:OSF1:*:* | hp8?7:OSF1:*:* ) - echo hppa1.1-hp-osf - exit 0 ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit 0 ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit 0 ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit 0 ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit 0 ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit 0 ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit 0 ;; - CRAY*X-MP:UNICOS:*:*) - echo xmp-cray-unicos - exit 0 ;; - CRAY*Y-MP:UNICOS:*:*) - echo ymp-cray-unicos - exit 0 ;; - CRAY-2:UNICOS:*:*) - echo cray2-cray-unicos - exit 0 ;; - hp3[0-9][05]:NetBSD:*:*) - echo m68k-hp-netbsd${UNAME_RELEASE} - exit 0 ;; - i[34]86:BSD/386:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit 0 ;; - *:FreeBSD:*:*) - echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` - exit 0 ;; - *:NetBSD:*:*) - echo ${UNAME_MACHINE}-unknown-netbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'` - exit 0 ;; - *:GNU:*:*) - echo `echo ${UNAME_MACHINE}|sed -e 's,/.*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` - exit 0 ;; - *:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux - exit 0 ;; -# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. earlier versions -# are messed up and put the nodename in both sysname and nodename. - i[34]86:DYNIX/ptx:4*:*) - echo i386-sequent-sysv4 - exit 0 ;; - i[34]86:*:4.*:* | i[34]86:SYSTEM_V:4.*:*) - if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then - echo ${UNAME_MACHINE}-univel-sysv${UNAME_RELEASE} - else - echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE} - fi - exit 0 ;; - i[34]86:*:3.2:*) - if /bin/uname -X 2>/dev/null >/dev/null ; then - UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')` - (/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486 - echo ${UNAME_MACHINE}-unknown-sco$UNAME_REL - elif test -f /usr/options/cb.name; then - UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name` - echo ${UNAME_MACHINE}-unknown-isc$UNAME_REL - else - echo ${UNAME_MACHINE}-unknown-sysv32 - fi - exit 0 ;; - Intel:Mach:3*:*) - echo i386-unknown-mach3 - exit 0 ;; - i860:*:4.*:*) # i860-SVR4 - if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then - echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 - else # Add other i860-SVR4 vendors below as they are discovered. - echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 - fi - exit 0 ;; - mini*:CTIX:SYS*5:*) - # "miniframe" - echo m68010-convergent-sysv - exit 0 ;; - M680[234]0:*:R3V[567]*:*) - test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;; - 3[34]??:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0) - uname -p 2>/dev/null | grep 86 >/dev/null \ - && echo i486-ncr-sysv4.3 && exit 0 ;; - 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) - uname -p 2>/dev/null | grep 86 >/dev/null \ - && echo i486-ncr-sysv4 && exit 0 ;; - m680[234]0:LynxOS:2.2*:*) - echo m68k-lynx-lynxos${UNAME_RELEASE} - exit 0 ;; - mc68030:UNIX_System_V:4.*:*) - echo m68k-atari-sysv4 - exit 0 ;; - i[34]86:LynxOS:2.2*:*) - echo i386-lynx-lynxos${UNAME_RELEASE} - exit 0 ;; - TSUNAMI:LynxOS:2.2*:*) - echo sparc-lynx-lynxos${UNAME_RELEASE} - exit 0 ;; - rs6000:LynxOS:2.2*:*) - echo rs6000-lynx-lynxos${UNAME_RELEASE} - exit 0 ;; - RM*:SINIX-*:*:*) - echo mips-sni-sysv4 - exit 0 ;; - *:SINIX-*:*:*) - if uname -p 2>/dev/null >/dev/null ; then - UNAME_MACHINE=`(uname -p) 2>/dev/null` - echo ${UNAME_MACHINE}-sni-sysv4 - else - echo ns32k-sni-sysv - fi - exit 0 ;; -esac - -#echo '(No uname command or uname output not recognized.)' 1>&2 -#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 - -cat >dummy.c <<EOF -main () -{ -#if defined (sony) -#if defined (MIPSEB) - /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, - I don't know.... */ - printf ("mips-sony-bsd\n"); exit (0); -#else - printf ("m68k-sony-newsos\n"); exit (0); -#endif -#endif - -#if defined (__arm) && defined (__acorn) && defined (__unix) - printf ("arm-acorn-riscix"); exit (0); -#endif - -#if defined (hp300) && !defined (hpux) - printf ("m68k-hp-bsd\n"); exit (0); -#endif - -#if defined (NeXT) -#if !defined (__ARCHITECTURE__) -#define __ARCHITECTURE__ "m68k" -#endif - int version; - version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; - printf ("%s-next-nextstep%s\n", __ARCHITECTURE__, version==2 ? "2" : "3"); - exit (0); -#endif - -#if defined (MULTIMAX) || defined (n16) -#if defined (UMAXV) - printf ("ns32k-encore-sysv\n"); exit (0); -#else -#if defined (CMU) - printf ("ns32k-encore-mach\n"); exit (0); -#else - printf ("ns32k-encore-bsd\n"); exit (0); -#endif -#endif -#endif - -#if defined (__386BSD__) - printf ("i386-unknown-bsd\n"); exit (0); -#endif - -#if defined (sequent) -#if defined (i386) - printf ("i386-sequent-dynix\n"); exit (0); -#endif -#if defined (ns32000) - printf ("ns32k-sequent-dynix\n"); exit (0); -#endif -#endif - -#if defined (_SEQUENT_) - printf ("i386-sequent-ptx\n"); exit (0); -#endif - -#if defined (vax) -#if !defined (ultrix) - printf ("vax-dec-bsd\n"); exit (0); -#else - printf ("vax-dec-ultrix\n"); exit (0); -#endif -#endif - -#if defined (alliant) && defined (i860) - printf ("i860-alliant-bsd\n"); exit (0); -#endif - - exit (1); -} -EOF - -${CC-cc} dummy.c -o dummy 2>/dev/null && ./dummy && rm dummy.c dummy && exit 0 -rm -f dummy.c dummy - -# Apollos put the system type in the environment. - -test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; } - -# Convex versions that predate uname can use getsysinfo(1) - -if [ -x /usr/convex/getsysinfo ] -then - case `getsysinfo -f cpu_type` in - c1*) - echo c1-convex-bsd - exit 0 ;; - c2*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit 0 ;; - c34*) - echo c34-convex-bsd - exit 0 ;; - c38*) - echo c38-convex-bsd - exit 0 ;; - c4*) - echo c4-convex-bsd - exit 0 ;; - esac -fi - -#echo '(Unable to guess system type)' 1>&2 - -exit 1 diff --git a/util/autoconf/config.log b/util/autoconf/config.log deleted file mode 100644 index fb9038e..0000000 --- a/util/autoconf/config.log +++ /dev/null @@ -1,3 +0,0 @@ -This file contains any messages produced by compilers while -running configure, to aid debugging if configure makes a mistake. - diff --git a/util/autoconf/config.status b/util/autoconf/config.status deleted file mode 100755 index 4cfaf21..0000000 --- a/util/autoconf/config.status +++ /dev/null @@ -1,113 +0,0 @@ -#!/bin/sh -# Generated automatically by configure. -# Run this file to recreate the current configuration. -# This directory was configured as follows, -# on host tardis: -# -# ./configure -# -# Compiler output produced by configure, useful for debugging -# configure, is in ./config.log if it exists. - -ac_cs_usage="Usage: ./config.status [--recheck] [--version] [--help]" -for ac_option -do - case "$ac_option" in - -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) - echo "running ${CONFIG_SHELL-/bin/sh} ./configure --no-create --no-recursion" - exec ${CONFIG_SHELL-/bin/sh} ./configure --no-create --no-recursion ;; - -version | --version | --versio | --versi | --vers | --ver | --ve | --v) - echo "./config.status generated by autoconf version 2.0" - exit 0 ;; - -help | --help | --hel | --he | --h) - echo "$ac_cs_usage"; exit 0 ;; - *) echo "$ac_cs_usage"; exit 1 ;; - esac -done - -ac_given_srcdir=. -ac_given_INSTALL="/usr/athena/bin/install -c" - -trap 'rm -f Makefile testsuite/Makefile; exit 1' 1 2 15 - -# Protect against being on the right side of a sed subst in config.status. -sed 's/%@/@@/; s/@%/@@/; s/%g$/@g/; /@g$/s/[\\&%]/\\&/g; - s/@@/%@/; s/@@/@%/; s/@g$/%g/' > conftest.subs <<\CEOF -/^[ ]*VPATH[ ]*=[^:]*$/d - -s%@CFLAGS@%%g -s%@CPPFLAGS@%%g -s%@CXXFLAGS@%%g -s%@DEFS@% %g -s%@LDFLAGS@%%g -s%@LIBS@%%g -s%@exec_prefix@%${prefix}%g -s%@prefix@%/usr/local%g -s%@program_transform_name@%s,x,x,%g -s%@M4@%/mit/gnu/rsaixbin/gm4%g -s%@PERL@%/usr/athena/bin/perl%g -s%@SCRIPTS@%autoscan%g -s%@INSTALL_PROGRAM@%${INSTALL}%g -s%@INSTALL_DATA@%${INSTALL} -m 644%g -s%@standards_info@%standards.info%g -s%@standards_dvi@%standards.dvi%g - -CEOF - -CONFIG_FILES=${CONFIG_FILES-"Makefile testsuite/Makefile"} -for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then - # Support "outfile[:infile]", defaulting infile="outfile.in". - case "$ac_file" in - *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'` - ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; - *) ac_file_in="${ac_file}.in" ;; - esac - - # Adjust relative srcdir, etc. for subdirectories. - - # Remove last slash and all that follows it. 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See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Configuration subroutine to validate and canonicalize a configuration type. -# Supply the specified configuration type as an argument. -# If it is invalid, we print an error message on stderr and exit with code 1. -# Otherwise, we print the canonical config type on stdout and succeed. - -# This file is supposed to be the same for all GNU packages -# and recognize all the CPU types, system types and aliases -# that are meaningful with *any* GNU software. -# Each package is responsible for reporting which valid configurations -# it does not support. 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See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -# Reads from stdin if no files are given. -# Writes to stdout. - -# Written by David MacKenzie <djm@gnu.ai.mit.edu> - -usage="\ -Usage: ifnames [-h] [--help] [-m dir] [--macrodir=dir] [--version] [file...]" -show_version=no - -test -z "$AC_MACRODIR" && AC_MACRODIR=/usr/local/share/autoconf - -while test $# -gt 0; do - case "$1" in - -h | --help | --h* ) - echo "$usage"; exit 0 ;; - --macrodir=* | --m*=* ) - AC_MACRODIR="`echo \"$1\" | sed -e 's/^[^=]*=//'`" - shift ;; - -m | --macrodir | --m* ) - shift - test $# -eq 0 && { echo "$usage" 1>&2; exit 1; } - AC_MACRODIR="$1" - shift ;; - --version | --versio | --versi | --vers) - show_version=yes; shift ;; - --) # Stop option processing. - shift; break ;; - -*) echo "$usage" 1>&2; exit 1 ;; - *) break ;; - esac -done - -if test $show_version = yes; then - version=`sed -n 's/define.AC_ACVERSION.[ ]*\([0-9.]*\).*/\1/p' \ - $AC_MACRODIR/acgeneral.m4` - echo "Autoconf version $version" - exit 0 -fi - -if test $# -eq 0; then - cat > stdin - set stdin - trap 'rm -f stdin' 0 - trap 'rm -f stdin; exit 1' 1 3 15 -fi - -for arg -do -# The first two substitutions remove comments. 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-d "$dstdir" ]; then -defaultIFS=' -' -IFS="${IFS-${defaultIFS}}" - -oIFS="${IFS}" -# Some sh's can't handle IFS=/ for some reason. -IFS='%' -set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` -IFS="${oIFS}" - -pathcomp='' - -while [ $# -ne 0 ] ; do - pathcomp="${pathcomp}${1}" - shift - - if [ ! -d "${pathcomp}" ] ; - then - $mkdirprog "${pathcomp}" - else - true - fi - - pathcomp="${pathcomp}/" -done -fi - -if [ x"$dir_arg" != x ] -then - $doit $instcmd $dst && - - if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && - if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && - if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && - if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi -else - -# If we're going to rename the final executable, determine the name now. - - if [ x"$transformarg" = x ] - then - dstfile=`basename $dst` - else - dstfile=`basename $dst $transformbasename | - sed $transformarg`$transformbasename - fi - -# don't allow the sed command to completely eliminate the filename - - if [ x"$dstfile" = x ] - then - dstfile=`basename $dst` - else - true - fi - -# Make a temp file name in the proper directory. - - dsttmp=$dstdir/#inst.$$# - -# Move or copy the file name to the temp name - - $doit $instcmd $src $dsttmp && - - trap "rm -f ${dsttmp}" 0 && - -# and set any options; do chmod last to preserve setuid bits - -# If any of these fail, we abort the whole thing. If we want to -# ignore errors from any of these, just make sure not to ignore -# errors from the above "$doit $instcmd $src $dsttmp" command. - - if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && - if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && - if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && - if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && - -# Now rename the file to the real destination. - - $doit $rmcmd -f $dstdir/$dstfile && - $doit $mvcmd $dsttmp $dstdir/$dstfile - -fi && - - -exit 0 diff --git a/util/autoconf/install.texi b/util/autoconf/install.texi deleted file mode 100644 index bff0738..0000000 --- a/util/autoconf/install.texi +++ /dev/null @@ -1,193 +0,0 @@ -@c This file is included by autoconf.texi and is used to produce -@c the INSTALL file. - -@node Basic Installation -@section Basic Installation - -These are generic installation instructions. - -The @code{configure} shell script attempts to guess correct values for -various system-dependent variables used during compilation. It uses -those values to create a @file{Makefile} in each directory of the -package. It may also create one or more @file{.h} files containing -system-dependent definitions. Finally, it creates a shell script -@file{config.status} that you can run in the future to recreate the -current configuration, a file @file{config.cache} that saves the results -of its tests to speed up reconfiguring, and a file @file{config.log} -containing compiler output (useful mainly for debugging -@code{configure}). - -If you need to do unusual things to compile the package, please try to -figure out how @code{configure} could check whether to do them, and mail -diffs or instructions to the address given in the @file{README} so they -can be considered for the next release. If at some point -@file{config.cache} contains results you don't want to keep, you may -remove or edit it. - -The file @file{configure.in} is used to create @file{configure} by a -program called @code{autoconf}. You only need @file{configure.in} if -you want to change it or regenerate @file{configure} using a newer -version of @code{autoconf}. - -@noindent -The simplest way to compile this package is: - -@enumerate -@item -@code{cd} to the directory containing the package's source code and type -@samp{./configure} to configure the package for your system. If you're -using @code{csh} on an old version of System V, you might need to type -@samp{sh ./configure} instead to prevent @code{csh} from trying to -execute @code{configure} itself. - -Running @code{configure} takes awhile. While running, it prints some -messages telling which features it is checking for. - -@item -Type @samp{make} to compile the package. - -@item -Optionally, type @samp{make check} to run any self-tests that come with -the package. - -@item -Type @samp{make install} to install the programs and any data files and -documentation. - -@item -You can remove the program binaries and object files from the source -directory by typing @samp{make clean}. To also remove the files that -@code{configure} created (so you can compile the package for a different -kind of computer), type @samp{make distclean}. -@end enumerate - -@node Compilers and Options -@section Compilers and Options - -Some systems require unusual options for compilation or linking that -the @code{configure} script does not know about. You can give -@code{configure} initial values for variables by setting them in the -environment. Using a Bourne-compatible shell, you can do that on the -command line like this: -@example -CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure -@end example - -@noindent -Or on systems that have the @code{env} program, you can do it like this: -@example -env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure -@end example - -@node Build Directory -@section Using a Different Build Directory - -You can compile the package in a different directory from the one -containing the source code. Doing so allows you to compile it on more -than one kind of computer at the same time. To do this, you must use a -version of @code{make} that supports the @code{VPATH} variable, such as -GNU @code{make}. @code{cd} to the directory where you want the object -files and executables to go and run the @code{configure} script. -@code{configure} automatically checks for the source code in the -directory that @code{configure} is in and in @file{..}. - -@node Installation Names -@section Installation Names - -By default, @samp{make install} will install the package's files in -@file{/usr/local/bin}, @file{/usr/local/man}, etc. You can specify an -installation prefix other than @file{/usr/local} by giving -@code{configure} the option @samp{--prefix=@var{path}}. - -You can specify separate installation prefixes for architecture-specific -files and architecture-independent files. If you give @code{configure} -the option @samp{--exec-prefix=@var{path}}, the package will use -@var{path} as the prefix for installing programs and libraries. -Documentation and other data files will still use the regular prefix. - -If the package supports it, you can cause programs to be installed with -an extra prefix or suffix on their names by giving @code{configure} the -option @samp{--program-prefix=@var{PREFIX}} or -@samp{--program-suffix=@var{SUFFIX}}. - -@node Optional Features -@section Optional Features - -Some packages pay attention to @samp{--enable-@var{feature}} options to -@code{configure}, where @var{feature} indicates an optional part of the -package. They may also pay attention to @samp{--with-@var{package}} -options, where @var{package} is something like @samp{gnu-as} or @samp{x} -(for the X Window System). The @file{README} should mention any -@samp{--enable-} and @samp{--with-} options that the package recognizes. - -For packages that use the X Window System, @code{configure} can usually -find the X include and library files automatically, but if it doesn't, -you can use the @code{configure} options @samp{--x-includes=@var{dir}} -and @samp{--x-libraries=@var{dir}} to specify their locations. - -@node System Type -@section Specifying the System Type - -There may be some features @code{configure} can not figure out -automatically, but needs to determine by the type of host the package -will run on. Usually @code{configure} can figure that out, but if it -prints a message saying it can not guess the host type, give it the -@samp{--host=@var{type}} option. @var{type} can either be a short name -for the system type, such as @samp{sun4}, or a canonical name with three -fields: -@example -@var{cpu}-@var{company}-@var{system} -@end example -@noindent -See the file @file{config.sub} for the possible values of each field. -If @file{config.sub} isn't included in this package, then this package -doesn't need to know the host type. - -If you are building compiler tools for cross-compiling, you can also use -the @samp{--target=@var{type}} option to select the type of system -they will produce code for and the @samp{--build=@var{type}} option -to select the type of system on which you are compiling the package. - -@node Sharing Defaults -@section Sharing Defaults - -If you want to set default values for @code{configure} scripts to share, -you can create a site shell script called @file{config.site} that gives -default values for variables like @code{CC}, @code{cache_file}, and -@code{prefix}. @code{configure} looks for -@file{@var{prefix}/share/config.site} if it exists, then -@file{@var{prefix}/etc/config.site} if it exists. Or, you can set -the @code{CONFIG_SITE} environment variable to the location of the site -script. A warning: not all @code{configure} scripts look for a site script. - -@node Operation Controls -@section Operation Controls - -@code{configure} recognizes the following options to control how it -operates. - -@table @code -@item --cache-file=@var{file} -Save the results of the tests in @var{file} instead of -@file{config.cache}. Set @var{file} to @file{/dev/null} to disable -caching, for debugging @code{configure}. - -@item --help -Print a summary of the options to @code{configure}, and exit. - -@item --quiet -@itemx --silent -@itemx -q -Do not print messages saying which checks are being made. - -@item --srcdir=@var{dir} -Look for the package's source code in directory @var{dir}. Usually -@code{configure} can determine that directory automatically. - -@item --version -Print the version of Autoconf used to generate the @code{configure} -script, and exit. -@end table - -@noindent -@code{configure} also accepts some other, not widely useful, options. diff --git a/util/autoconf/make-stds.texi b/util/autoconf/make-stds.texi deleted file mode 100644 index 95a42ec..0000000 --- a/util/autoconf/make-stds.texi +++ /dev/null @@ -1,625 +0,0 @@ -@comment This file is included by both standards.texi and make.texinfo. -@comment It was broken out of standards.texi on 1/6/93 by roland. - -@node Makefile Conventions -@chapter Makefile Conventions -@comment standards.texi does not print an index, but make.texinfo does. -@cindex makefile, conventions for -@cindex conventions for makefiles -@cindex standards for makefiles - -This chapter describes conventions for writing the Makefiles for GNU programs. - -@menu -* Makefile Basics:: -* Utilities in Makefiles:: -* Standard Targets:: -* Command Variables:: -* Directory Variables:: -@end menu - -@node Makefile Basics -@section General Conventions for Makefiles - -Every Makefile should contain this line: - -@example -SHELL = /bin/sh -@end example - -@noindent -to avoid trouble on systems where the @code{SHELL} variable might be -inherited from the environment. (This is never a problem with GNU -@code{make}.) - -Different @code{make} programs have incompatible suffix lists and -implicit rules, and this sometimes creates confusion or misbehavior. So -it is a good idea to set the suffix list explicitly using only the -suffixes you need in the particular Makefile, like this: - -@example -.SUFFIXES: -.SUFFIXES: .c .o -@end example - -@noindent -The first line clears out the suffix list, the second introduces all -suffixes which may be subject to implicit rules in this Makefile. - -Don't assume that @file{.} is in the path for command execution. When -you need to run programs that are a part of your package during the -make, please make sure that it uses @file{./} if the program is built as -part of the make or @file{$(srcdir)/} if the file is an unchanging part -of the source code. Without one of these prefixes, the current search -path is used. - -The distinction between @file{./} and @file{$(srcdir)/} is important -when using the @samp{--srcdir} option to @file{configure}. A rule of -the form: - -@smallexample -foo.1 : foo.man sedscript - sed -e sedscript foo.man > foo.1 -@end smallexample - -@noindent -will fail when the current directory is not the source directory, -because @file{foo.man} and @file{sedscript} are not in the current -directory. - -When using GNU @code{make}, relying on @samp{VPATH} to find the source -file will work in the case where there is a single dependency file, -since the @file{make} automatic variable @samp{$<} will represent the -source file wherever it is. (Many versions of @code{make} set @samp{$<} -only in implicit rules.) A makefile target like - -@smallexample -foo.o : bar.c - $(CC) -I. -I$(srcdir) $(CFLAGS) -c bar.c -o foo.o -@end smallexample - -@noindent -should instead be written as - -@smallexample -foo.o : bar.c - $(CC) -I. -I$(srcdir) $(CFLAGS) -c $< -o $@@ -@end smallexample - -@noindent -in order to allow @samp{VPATH} to work correctly. When the target has -multiple dependencies, using an explicit @samp{$(srcdir)} is the easiest -way to make the rule work well. For example, the target above for -@file{foo.1} is best written as: - -@smallexample -foo.1 : foo.man sedscript - sed -e $(srcdir)/sedscript $(srcdir)/foo.man > $@@ -@end smallexample - -@node Utilities in Makefiles -@section Utilities in Makefiles - -Write the Makefile commands (and any shell scripts, such as -@code{configure}) to run in @code{sh}, not in @code{csh}. Don't use any -special features of @code{ksh} or @code{bash}. - -The @code{configure} script and the Makefile rules for building and -installation should not use any utilities directly except these: - -@example -cat cmp cp echo egrep expr grep -ln mkdir mv pwd rm rmdir sed test touch -@end example - -Stick to the generally supported options for these programs. For -example, don't use @samp{mkdir -p}, convenient as it may be, because -most systems don't support it. - -The Makefile rules for building and installation can also use compilers -and related programs, but should do so via @code{make} variables so that the -user can substitute alternatives. Here are some of the programs we -mean: - -@example -ar bison cc flex install ld lex -make makeinfo ranlib texi2dvi yacc -@end example - -Use the following @code{make} variables: - -@example -$(AR) $(BISON) $(CC) $(FLEX) $(INSTALL) $(LD) $(LEX) -$(MAKE) $(MAKEINFO) $(RANLIB) $(TEXI2DVI) $(YACC) -@end example - -When you use @code{ranlib}, you should make sure nothing bad happens if -the system does not have @code{ranlib}. Arrange to ignore an error -from that command, and print a message before the command to tell the -user that failure of the @code{ranlib} command does not mean a problem. - -If you use symbolic links, you should implement a fallback for systems -that don't have symbolic links. - -It is ok to use other utilities in Makefile portions (or scripts) -intended only for particular systems where you know those utilities to -exist. - -@node Standard Targets -@section Standard Targets for Users - -All GNU programs should have the following targets in their Makefiles: - -@table @samp -@item all -Compile the entire program. This should be the default target. This -target need not rebuild any documentation files; Info files should -normally be included in the distribution, and DVI files should be made -only when explicitly asked for. - -@item install -Compile the program and copy the executables, libraries, and so on to -the file names where they should reside for actual use. If there is a -simple test to verify that a program is properly installed, this target -should run that test. - -The commands should create all the directories in which files are to be -installed, if they don't already exist. This includes the directories -specified as the values of the variables @code{prefix} and -@code{exec_prefix}, as well as all subdirectories that are needed. -One way to do this is by means of an @code{installdirs} target -as described below. - -Use @samp{-} before any command for installing a man page, so that -@code{make} will ignore any errors. This is in case there are systems -that don't have the Unix man page documentation system installed. - -The way to install Info files is to copy them into @file{$(infodir)} -with @code{$(INSTALL_DATA)} (@pxref{Command Variables}), and then run -the @code{install-info} program if it is present. @code{install-info} -is a script that edits the Info @file{dir} file to add or update the -menu entry for the given Info file; it will be part of the Texinfo package. -Here is a sample rule to install an Info file: - -@comment This example has been carefully formatted for the Make manual. -@comment Please do not reformat it without talking to roland@gnu.ai.mit.edu. -@smallexample -$(infodir)/foo.info: foo.info -# There may be a newer info file in . than in srcdir. - -if test -f foo.info; then d=.; \ - else d=$(srcdir); fi; \ - $(INSTALL_DATA) $$d/foo.info $@@; \ -# Run install-info only if it exists. -# Use `if' instead of just prepending `-' to the -# line so we notice real errors from install-info. -# We use `$(SHELL) -c' because some shells do not -# fail gracefully when there is an unknown command. - if $(SHELL) -c 'install-info --version' \ - >/dev/null 2>&1; then \ - install-info --infodir=$(infodir) $$d/foo.info; \ - else true; fi -@end smallexample - -@item uninstall -Delete all the installed files that the @samp{install} target would -create (but not the noninstalled files such as @samp{make all} would -create). - -@comment The gratuitous blank line here is to make the table look better -@comment in the printed Make manual. Please leave it in. -@item clean - -Delete all files from the current directory that are normally created by -building the program. Don't delete the files that record the -configuration. Also preserve files that could be made by building, but -normally aren't because the distribution comes with them. - -Delete @file{.dvi} files here if they are not part of the distribution. - -@item distclean -Delete all files from the current directory that are created by -configuring or building the program. If you have unpacked the source -and built the program without creating any other files, @samp{make -distclean} should leave only the files that were in the distribution. - -@item mostlyclean -Like @samp{clean}, but may refrain from deleting a few files that people -normally don't want to recompile. For example, the @samp{mostlyclean} -target for GCC does not delete @file{libgcc.a}, because recompiling it -is rarely necessary and takes a lot of time. - -@item realclean -Delete everything from the current directory that can be reconstructed -with this Makefile. This typically includes everything deleted by -@code{distclean}, plus more: C source files produced by Bison, tags tables, -Info files, and so on. - -One exception, however: @samp{make realclean} should not delete -@file{configure} even if @file{configure} can be remade using a rule in -the Makefile. More generally, @samp{make realclean} should not delete -anything that needs to exist in order to run @file{configure} -and then begin to build the program. - -@item TAGS -Update a tags table for this program. - -@item info -Generate any Info files needed. The best way to write the rules is as -follows: - -@smallexample -info: foo.info - -foo.info: foo.texi chap1.texi chap2.texi - $(MAKEINFO) $(srcdir)/foo.texi -@end smallexample - -@noindent -You must define the variable @code{MAKEINFO} in the Makefile. It should -run the @code{makeinfo} program, which is part of the Texinfo -distribution. - -@item dvi -Generate DVI files for all TeXinfo documentation. -For example: - -@smallexample -dvi: foo.dvi - -foo.dvi: foo.texi chap1.texi chap2.texi - $(TEXI2DVI) $(srcdir)/foo.texi -@end smallexample - -@noindent -You must define the variable @code{TEXI2DVI} in the Makefile. It should -run the program @code{texi2dvi}, which is part of the Texinfo -distribution. Alternatively, write just the dependencies, and allow GNU -Make to provide the command. - -@item dist -Create a distribution tar file for this program. The tar file should be -set up so that the file names in the tar file start with a subdirectory -name which is the name of the package it is a distribution for. This -name can include the version number. - -For example, the distribution tar file of GCC version 1.40 unpacks into -a subdirectory named @file{gcc-1.40}. - -The easiest way to do this is to create a subdirectory appropriately -named, use @code{ln} or @code{cp} to install the proper files in it, and -then @code{tar} that subdirectory. - -The @code{dist} target should explicitly depend on all non-source files -that are in the distribution, to make sure they are up to date in the -distribution. -@xref{Releases, , Making Releases, standards, GNU Coding Standards}. - -@item check -Perform self-tests (if any). The user must build the program before -running the tests, but need not install the program; you should write -the self-tests so that they work when the program is built but not -installed. -@end table - -The following targets are suggested as conventional names, for programs -in which they are useful. - -@table @code -@item installcheck -Perform installation tests (if any). The user must build and install -the program before running the tests. You should not assume that -@file{$(bindir)} is in the search path. - -@item installdirs -It's useful to add a target named @samp{installdirs} to create the -directories where files are installed, and their parent directories. -There is a script called @file{mkinstalldirs} which is convenient for -this; find it in the Texinfo package.@c It's in /gd/gnu/lib/mkinstalldirs. -You can use a rule like this: - -@comment This has been carefully formatted to look decent in the Make manual. -@comment Please be sure not to make it extend any further to the right.--roland -@smallexample -# Make sure all installation directories (e.g. $(bindir)) -# actually exist by making them if necessary. -installdirs: mkinstalldirs - $(srcdir)/mkinstalldirs $(bindir) $(datadir) \ - $(libdir) $(infodir) \ - $(mandir) -@end smallexample -@end table - -@node Command Variables -@section Variables for Specifying Commands - -Makefiles should provide variables for overriding certain commands, options, -and so on. - -In particular, you should run most utility programs via variables. -Thus, if you use Bison, have a variable named @code{BISON} whose default -value is set with @samp{BISON = bison}, and refer to it with -@code{$(BISON)} whenever you need to use Bison. - -File management utilities such as @code{ln}, @code{rm}, @code{mv}, and -so on, need not be referred to through variables in this way, since users -don't need to replace them with other programs. - -Each program-name variable should come with an options variable that is -used to supply options to the program. Append @samp{FLAGS} to the -program-name variable name to get the options variable name---for -example, @code{BISONFLAGS}. (The name @code{CFLAGS} is an exception to -this rule, but we keep it because it is standard.) Use @code{CPPFLAGS} -in any compilation command that runs the preprocessor, and use -@code{LDFLAGS} in any compilation command that does linking as well as -in any direct use of @code{ld}. - -If there are C compiler options that @emph{must} be used for proper -compilation of certain files, do not include them in @code{CFLAGS}. -Users expect to be able to specify @code{CFLAGS} freely themselves. -Instead, arrange to pass the necessary options to the C compiler -independently of @code{CFLAGS}, by writing them explicitly in the -compilation commands or by defining an implicit rule, like this: - -@smallexample -CFLAGS = -g -ALL_CFLAGS = -I. $(CFLAGS) -.c.o: - $(CC) -c $(CPPFLAGS) $(ALL_CFLAGS) $< -@end smallexample - -Do include the @samp{-g} option in @code{CFLAGS}, because that is not -@emph{required} for proper compilation. You can consider it a default -that is only recommended. If the package is set up so that it is -compiled with GCC by default, then you might as well include @samp{-O} -in the default value of @code{CFLAGS} as well. - -Put @code{CFLAGS} last in the compilation command, after other variables -containing compiler options, so the user can use @code{CFLAGS} to -override the others. - -Every Makefile should define the variable @code{INSTALL}, which is the -basic command for installing a file into the system. - -Every Makefile should also define the variables @code{INSTALL_PROGRAM} -and @code{INSTALL_DATA}. (The default for each of these should be -@code{$(INSTALL)}.) Then it should use those variables as the commands -for actual installation, for executables and nonexecutables -respectively. Use these variables as follows: - -@example -$(INSTALL_PROGRAM) foo $(bindir)/foo -$(INSTALL_DATA) libfoo.a $(libdir)/libfoo.a -@end example - -@noindent -Always use a file name, not a directory name, as the second argument of -the installation commands. Use a separate command for each file to be -installed. - -@node Directory Variables -@section Variables for Installation Directories - -Installation directories should always be named by variables, so it is -easy to install in a nonstandard place. The standard names for these -variables are as follows. - -These two variables set the root for the installation. All the other -installation directories should be subdirectories of one of these two, -and nothing should be directly installed into these two directories. - -@table @samp -@item prefix -A prefix used in constructing the default values of the variables listed -below. The default value of @code{prefix} should be @file{/usr/local} -(at least for now). - -@item exec_prefix -A prefix used in constructing the default values of some of the -variables listed below. The default value of @code{exec_prefix} should -be @code{$(prefix)}. - -Generally, @code{$(exec_prefix)} is used for directories that contain -machine-specific files (such as executables and subroutine libraries), -while @code{$(prefix)} is used directly for other directories. -@end table - -Executable programs are installed in one of the following directories. - -@table @samp -@item bindir -The directory for installing executable programs that users can run. -This should normally be @file{/usr/local/bin}, but write it as -@file{$(exec_prefix)/bin}. - -@item sbindir -The directory for installing executable programs that can be run from -the shell, but are only generally useful to system administrators. This -should normally be @file{/usr/local/sbin}, but write it as -@file{$(exec_prefix)/sbin}. - -@item libexecdir -@comment This paragraph adjusted to avoid overfull hbox --roland 5jul94 -The directory for installing executable programs to be run by other -programs rather than by users. This directory should normally be -@file{/usr/local/libexec}, but write it as @file{$(exec_prefix)/libexec}. -@end table - -Data files used by the program during its execution are divided into -categories in two ways. - -@itemize @bullet -@item -Some files are normally modified by programs; others are never normally -modified (though users may edit some of these). - -@item -Some files are architecture-independent and can be shared by all -machines at a site; some are architecture-dependent and can be shared -only by machines of the same kind and operating system; others may never -be shared between two machines. -@end itemize - -This makes for six different possibilities. However, we want to -discourage the use of architecture-dependent files, aside from of object -files and libraries. It is much cleaner to make other data files -architecture-independent, and it is generally not hard. - -Therefore, here are the variables makefiles should use to specify -directories: - -@table @samp -@item datadir -The directory for installing read-only architecture independent data -files. This should normally be @file{/usr/local/share}, but write it as -@file{$(prefix)/share}. As a special exception, see @file{$(infodir)} -and @file{$(includedir)} below. - -@item sysconfdir -The directory for installing read-only data files that pertain to a -single machine--that is to say, files for configuring a host. Mailer -and network configuration files, @file{/etc/passwd}, and so forth belong -here. All the files in this directory should be ordinary ASCII text -files. This directory should normally be @file{/usr/local/etc}, but -write it as @file{$(prefix)/etc}. - -@c rewritten to avoid overfull hbox --tower -Do not install executables -@c here -in this directory (they probably -belong in @file{$(libexecdir)} or @file{$(sbindir))}. Also do not -install files that are modified in the normal course of their use -(programs whose purpose is to change the configuration of the system -excluded). Those probably belong in @file{$(localstatedir)}. - -@item sharedstatedir -The directory for installing architecture-independent data files which -the programs modify while they run. This should normally be -@file{/usr/local/com}, but write it as @file{$(prefix)/com}. - -@item localstatedir -The directory for installing data files which the programs modify while -they run, and that pertain to one specific machine. Users should never -need to modify files in this directory to configure the package's -operation; put such configuration information in separate files that go -in @file{datadir} or @file{$(sysconfdir)}. @file{$(localstatedir)} -should normally be @file{/usr/local/var}, but write it as -@file{$(prefix)/var}. - -@item libdir -The directory for object files and libraries of object code. Do not -install executables here, they probably belong in @file{$(libexecdir)} -instead. The value of @code{libdir} should normally be -@file{/usr/local/lib}, but write it as @file{$(exec_prefix)/lib}. - -@item infodir -The directory for installing the Info files for this package. By -default, it should be @file{/usr/local/info}, but it should be written -as @file{$(prefix)/info}. - -@item includedir -@c rewritten to avoid overfull hbox --roland -The directory for installing header files to be included by user -programs with the C @samp{#include} preprocessor directive. This -should normally be @file{/usr/local/include}, but write it as -@file{$(prefix)/include}. - -Most compilers other than GCC do not look for header files in -@file{/usr/local/include}. So installing the header files this way is -only useful with GCC. Sometimes this is not a problem because some -libraries are only really intended to work with GCC. But some libraries -are intended to work with other compilers. They should install their -header files in two places, one specified by @code{includedir} and one -specified by @code{oldincludedir}. - -@item oldincludedir -The directory for installing @samp{#include} header files for use with -compilers other than GCC. This should normally be @file{/usr/include}. - -The Makefile commands should check whether the value of -@code{oldincludedir} is empty. If it is, they should not try to use -it; they should cancel the second installation of the header files. - -A package should not replace an existing header in this directory unless -the header came from the same package. Thus, if your Foo package -provides a header file @file{foo.h}, then it should install the header -file in the @code{oldincludedir} directory if either (1) there is no -@file{foo.h} there or (2) the @file{foo.h} that exists came from the Foo -package. - -To tell whether @file{foo.h} came from the Foo package, put a magic -string in the file---part of a comment---and grep for that string. -@end table - -Unix-style man pages are installed in one of the following: - -@table @samp -@item mandir -The directory for installing the man pages (if any) for this package. -It should include the suffix for the proper section of the -manual---usually @samp{1} for a utility. It will normally be -@file{/usr/local/man/man1}, but you should write it as -@file{$(prefix)/man/man1}. - -@item man1dir -The directory for installing section 1 man pages. -@item man2dir -The directory for installing section 2 man pages. -@item @dots{} -Use these names instead of @samp{mandir} if the package needs to install man -pages in more than one section of the manual. - -@strong{Don't make the primary documentation for any GNU software be a -man page. Write a manual in Texinfo instead. Man pages are just for -the sake of people running GNU software on Unix, which is a secondary -application only.} - -@item manext -The file name extension for the installed man page. This should contain -a period followed by the appropriate digit; it should normally be @samp{.1}. - -@item man1ext -The file name extension for installed section 1 man pages. -@item man2ext -The file name extension for installed section 2 man pages. -@item @dots{} -Use these names instead of @samp{manext} if the package needs to install man -pages in more than one section of the manual. -@end table - -And finally, you should set the following variable: - -@table @samp -@item srcdir -The directory for the sources being compiled. The value of this -variable is normally inserted by the @code{configure} shell script. -@end table - -For example: - -@smallexample -@c I have changed some of the comments here slightly to fix an overfull -@c hbox, so the make manual can format correctly. --roland -# Common prefix for installation directories. -# NOTE: This directory must exist when you start the install. -prefix = /usr/local -exec_prefix = $(prefix) -# Where to put the executable for the command `gcc'. -bindir = $(exec_prefix)/bin -# Where to put the directories used by the compiler. -libexecdir = $(exec_prefix)/libexec -# Where to put the Info files. -infodir = $(prefix)/info -@end smallexample - -If your program installs a large number of files into one of the -standard user-specified directories, it might be useful to group them -into a subdirectory particular to that program. If you do this, you -should write the @code{install} rule to create these subdirectories. - -Do not expect the user to include the subdirectory name in the value of -any of the variables listed above. The idea of having a uniform set of -variable names for installation directories is to enable the user to -specify the exact same values for several different GNU packages. In -order for this to be useful, all the packages must be designed so that -they will work sensibly when the user does so. - diff --git a/util/autoconf/mkinstalldirs b/util/autoconf/mkinstalldirs deleted file mode 100755 index 91f6d04..0000000 --- a/util/autoconf/mkinstalldirs +++ /dev/null @@ -1,32 +0,0 @@ -#!/bin/sh -# mkinstalldirs --- make directory hierarchy -# Author: Noah Friedman <friedman@prep.ai.mit.edu> -# Created: 1993-05-16 -# Last modified: 1994-03-25 -# Public domain - -errstatus=0 - -for file in ${1+"$@"} ; do - set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` - shift - - pathcomp= - for d in ${1+"$@"} ; do - pathcomp="$pathcomp$d" - case "$pathcomp" in - -* ) pathcomp=./$pathcomp ;; - esac - - if test ! -d "$pathcomp"; then - echo "mkdir $pathcomp" 1>&2 - mkdir "$pathcomp" || errstatus=$? - fi - - pathcomp="$pathcomp/" - done -done - -exit $errstatus - -# mkinstalldirs ends here diff --git a/util/autoconf/standards.info b/util/autoconf/standards.info deleted file mode 100644 index 7f3dda8..0000000 --- a/util/autoconf/standards.info +++ /dev/null @@ -1,60 +0,0 @@ -This is Info file ../standards.info, produced by Makeinfo-1.55 from the -input file ../standards.texi. - -START-INFO-DIR-ENTRY -* Standards: (standards). GNU coding standards. -END-INFO-DIR-ENTRY - - GNU Coding Standards Copyright (C) 1992, 1993, 1994 Free Software -Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Free Software Foundation. - - -Indirect: -standards.info-1: 960 -standards.info-2: 49450 - -Tag Table: -(Indirect) -Node: Top960 -Node: Preface2096 -Node: Reading Non-Free Code3138 -Node: Contributions4868 -Node: Change Logs6466 -Node: Compatibility10182 -Node: Makefile Conventions11821 -Node: Makefile Basics12178 -Node: Utilities in Makefiles14522 -Node: Standard Targets16219 -Node: Command Variables23328 -Node: Directory Variables26158 -Node: Configuration35220 -Node: Source Language42244 -Node: Formatting43374 -Node: Comments46664 -Node: Syntactic Conventions49450 -Node: Names52342 -Node: Using Extensions53632 -Node: System Functions55373 -Node: Semantics60176 -Node: Errors63464 -Node: Libraries64667 -Node: Portability65891 -Node: User Interfaces69178 -Node: Documentation85106 -Node: Releases89040 - -End Tag Table diff --git a/util/autoconf/standards.info-1 b/util/autoconf/standards.info-1 deleted file mode 100644 index 05178a0..0000000 --- a/util/autoconf/standards.info-1 +++ /dev/null @@ -1,1188 +0,0 @@ -This is Info file ../standards.info, produced by Makeinfo-1.55 from the -input file ../standards.texi. - -START-INFO-DIR-ENTRY -* Standards: (standards). GNU coding standards. -END-INFO-DIR-ENTRY - - GNU Coding Standards Copyright (C) 1992, 1993, 1994 Free Software -Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Free Software Foundation. - - -File: standards.info, Node: Top, Next: Preface, Prev: (dir), Up: (dir) - -Version -******* - - Last updated 21 September 1994. - -* Menu: - -* Preface:: About the GNU Coding Standards -* Reading Non-Free Code:: Referring to Proprietary Programs -* Contributions:: Accepting Contributions -* Change Logs:: Recording Changes -* Compatibility:: Compatibility with Other Implementations -* Makefile Conventions:: Makefile Conventions -* Configuration:: How Configuration Should Work -* Source Language:: Using Languages Other Than C -* Formatting:: Formatting Your Source Code -* Comments:: Commenting Your Work -* Syntactic Conventions:: Clean Use of C Constructs -* Names:: Naming Variables and Functions -* Using Extensions:: Using Non-standard Features -* System Functions:: Portability and "standard" library functions -* Semantics:: Program Behavior for All Programs -* Errors:: Formatting Error Messages -* Libraries:: Library Behavior -* Portability:: Portability As It Applies to GNU -* User Interfaces:: Standards for Command Line Interfaces -* Documentation:: Documenting Programs -* Releases:: Making Releases - - -File: standards.info, Node: Preface, Next: Reading Non-Free Code, Prev: Top, Up: Top - -About the GNU Coding Standards -****************************** - - The GNU Coding Standards were written by Richard Stallman and other -GNU Project volunteers. Their purpose is to make the GNU system clean, -consistent, and easy to install. This document can also be read as a -guide to write portable, robust and reliable programs. It focuses on -programs written in C, but many of the rules and principles are useful -even if you write in another programming language. The rules often -state reasons for writing in a certain way. - - Corrections or suggestions regarding this document should be sent to -`gnu@prep.ai.mit.edu'. If you make a suggestion, please include a -suggested new wording for it; our time is limited. We prefer a context -diff to the `standards.texi' or `make-stds.texi' files, but if you -don't have those files, please mail your suggestion anyway. - - This release of the GNU Coding Standards was last updated 21 -September 1994. - - -File: standards.info, Node: Reading Non-Free Code, Next: Contributions, Prev: Preface, Up: Top - -Referring to Proprietary Programs -********************************* - - Don't in any circumstances refer to Unix source code for or during -your work on GNU! (Or to any other proprietary programs.) - - If you have a vague recollection of the internals of a Unix program, -this does not absolutely mean you can't write an imitation of it, but -do try to organize the imitation internally along different lines, -because this is likely to make the details of the Unix version -irrelevant and dissimilar to your results. - - For example, Unix utilities were generally optimized to minimize -memory use; if you go for speed instead, your program will be very -different. You could keep the entire input file in core and scan it -there instead of using stdio. Use a smarter algorithm discovered more -recently than the Unix program. Eliminate use of temporary files. Do -it in one pass instead of two (we did this in the assembler). - - Or, on the contrary, emphasize simplicity instead of speed. For some -applications, the speed of today's computers makes simpler algorithms -adequate. - - Or go for generality. For example, Unix programs often have static -tables or fixed-size strings, which make for arbitrary limits; use -dynamic allocation instead. Make sure your program handles NULs and -other funny characters in the input files. Add a programming language -for extensibility and write part of the program in that language. - - Or turn some parts of the program into independently usable -libraries. Or use a simple garbage collector instead of tracking -precisely when to free memory, or use a new GNU facility such as -obstacks. - - -File: standards.info, Node: Contributions, Next: Change Logs, Prev: Reading Non-Free Code, Up: Top - -Accepting Contributions -*********************** - - If someone else sends you a piece of code to add to the program you -are working on, we need legal papers to use it--the same sort of legal -papers we will need to get from you. *Each* significant contributor to -a program must sign some sort of legal papers in order for us to have -clear title to the program. The main author alone is not enough. - - So, before adding in any contributions from other people, tell us so -we can arrange to get the papers. Then wait until we tell you that we -have received the signed papers, before you actually use the -contribution. - - This applies both before you release the program and afterward. If -you receive diffs to fix a bug, and they make significant change, we -need legal papers for it. - - You don't need papers for changes of a few lines here or there, since -they are not significant for copyright purposes. Also, you don't need -papers if all you get from the suggestion is some ideas, not actual code -which you use. For example, if you write a different solution to the -problem, you don't need to get papers. - - I know this is frustrating; it's frustrating for us as well. But if -you don't wait, you are going out on a limb--for example, what if the -contributor's employer won't sign a disclaimer? You might have to take -that code out again! - - The very worst thing is if you forget to tell us about the other -contributor. We could be very embarrassed in court some day as a -result. - - -File: standards.info, Node: Change Logs, Next: Compatibility, Prev: Contributions, Up: Top - -Change Logs -*********** - - Keep a change log for each directory, describing the changes made to -source files in that directory. The purpose of this is so that people -investigating bugs in the future will know about the changes that might -have introduced the bug. Often a new bug can be found by looking at -what was recently changed. More importantly, change logs can help -eliminate conceptual inconsistencies between different parts of a -program; they can give you a history of how the conflicting concepts -arose. - - Use the Emacs command `M-x add-change' to start a new entry in the -change log. An entry should have an asterisk, the name of the changed -file, and then in parentheses the name of the changed functions, -variables or whatever, followed by a colon. Then describe the changes -you made to that function or variable. - - Separate unrelated entries with blank lines. When two entries -represent parts of the same change, so that they work together, then -don't put blank lines between them. Then you can omit the file name -and the asterisk when successive entries are in the same file. - - Here are some examples: - - * register.el (insert-register): Return nil. - (jump-to-register): Likewise. - - * sort.el (sort-subr): Return nil. - - * tex-mode.el (tex-bibtex-file, tex-file, tex-region): - Restart the tex shell if process is gone or stopped. - (tex-shell-running): New function. - - * expr.c (store_one_arg): Round size up for move_block_to_reg. - (expand_call): Round up when emitting USE insns. - * stmt.c (assign_parms): Round size up for move_block_from_reg. - - It's important to name the changed function or variable in full. -Don't abbreviate them; don't combine them. Subsequent maintainers will -often search for a function name to find all the change log entries that -pertain to it; if you abbreviate the name, they won't find it when they -search. For example, some people are tempted to abbreviate groups of -function names by writing `* register.el ({insert,jump-to}-register)'; -this is not a good idea, since searching for `jump-to-register' or -`insert-register' would not find the entry. - - There's no need to describe the full purpose of the changes or how -they work together. It is better to put such explanations in comments -in the code. That's why just "New function" is enough; there is a -comment with the function in the source to explain what it does. - - However, sometimes it is useful to write one line to describe the -overall purpose of a large batch of changes. - - You can think of the change log as a conceptual "undo list" which -explains how earlier versions were different from the current version. -People can see the current version; they don't need the change log to -tell them what is in it. What they want from a change log is a clear -explanation of how the earlier version differed. - - When you change the calling sequence of a function in a simple -fashion, and you change all the callers of the function, there is no -need to make individual entries for all the callers. Just write in the -entry for the function being called, "All callers changed." - - When you change just comments or doc strings, it is enough to write -an entry for the file, without mentioning the functions. Write just, -"Doc fix." There's no need to keep a change log for documentation -files. This is because documentation is not susceptible to bugs that -are hard to fix. Documentation does not consist of parts that must -interact in a precisely engineered fashion; to correct an error, you -need not know the history of the erroneous passage. - - -File: standards.info, Node: Compatibility, Next: Makefile Conventions, Prev: Change Logs, Up: Top - -Compatibility with Other Implementations -**************************************** - - With certain exceptions, utility programs and libraries for GNU -should be upward compatible with those in Berkeley Unix, and upward -compatible with ANSI C if ANSI C specifies their behavior, and upward -compatible with POSIX if POSIX specifies their behavior. - - When these standards conflict, it is useful to offer compatibility -modes for each of them. - - ANSI C and POSIX prohibit many kinds of extensions. Feel free to -make the extensions anyway, and include a `--ansi' or `--compatible' -option to turn them off. However, if the extension has a significant -chance of breaking any real programs or scripts, then it is not really -upward compatible. Try to redesign its interface. - - Many GNU programs suppress extensions that conflict with POSIX if the -environment variable `POSIXLY_CORRECT' is defined (even if it is -defined with a null value). Please make your program recognize this -variable if appropriate. - - When a feature is used only by users (not by programs or command -files), and it is done poorly in Unix, feel free to replace it -completely with something totally different and better. (For example, -vi is replaced with Emacs.) But it is nice to offer a compatible -feature as well. (There is a free vi clone, so we offer it.) - - Additional useful features not in Berkeley Unix are welcome. -Additional programs with no counterpart in Unix may be useful, but our -first priority is usually to duplicate what Unix already has. - - -File: standards.info, Node: Makefile Conventions, Next: Configuration, Prev: Compatibility, Up: Top - -Makefile Conventions -******************** - - This chapter describes conventions for writing the Makefiles for GNU -programs. - -* Menu: - -* Makefile Basics:: -* Utilities in Makefiles:: -* Standard Targets:: -* Command Variables:: -* Directory Variables:: - - -File: standards.info, Node: Makefile Basics, Next: Utilities in Makefiles, Up: Makefile Conventions - -General Conventions for Makefiles -================================= - - Every Makefile should contain this line: - - SHELL = /bin/sh - -to avoid trouble on systems where the `SHELL' variable might be -inherited from the environment. (This is never a problem with GNU -`make'.) - - Different `make' programs have incompatible suffix lists and -implicit rules, and this sometimes creates confusion or misbehavior. So -it is a good idea to set the suffix list explicitly using only the -suffixes you need in the particular Makefile, like this: - - .SUFFIXES: - .SUFFIXES: .c .o - -The first line clears out the suffix list, the second introduces all -suffixes which may be subject to implicit rules in this Makefile. - - Don't assume that `.' is in the path for command execution. When -you need to run programs that are a part of your package during the -make, please make sure that it uses `./' if the program is built as -part of the make or `$(srcdir)/' if the file is an unchanging part of -the source code. Without one of these prefixes, the current search -path is used. - - The distinction between `./' and `$(srcdir)/' is important when -using the `--srcdir' option to `configure'. A rule of the form: - - foo.1 : foo.man sedscript - sed -e sedscript foo.man > foo.1 - -will fail when the current directory is not the source directory, -because `foo.man' and `sedscript' are not in the current directory. - - When using GNU `make', relying on `VPATH' to find the source file -will work in the case where there is a single dependency file, since -the `make' automatic variable `$<' will represent the source file -wherever it is. (Many versions of `make' set `$<' only in implicit -rules.) A makefile target like - - foo.o : bar.c - $(CC) -I. -I$(srcdir) $(CFLAGS) -c bar.c -o foo.o - -should instead be written as - - foo.o : bar.c - $(CC) -I. -I$(srcdir) $(CFLAGS) -c $< -o $@ - -in order to allow `VPATH' to work correctly. When the target has -multiple dependencies, using an explicit `$(srcdir)' is the easiest way -to make the rule work well. For example, the target above for `foo.1' -is best written as: - - foo.1 : foo.man sedscript - sed -e $(srcdir)/sedscript $(srcdir)/foo.man > $@ - - -File: standards.info, Node: Utilities in Makefiles, Next: Standard Targets, Prev: Makefile Basics, Up: Makefile Conventions - -Utilities in Makefiles -====================== - - Write the Makefile commands (and any shell scripts, such as -`configure') to run in `sh', not in `csh'. Don't use any special -features of `ksh' or `bash'. - - The `configure' script and the Makefile rules for building and -installation should not use any utilities directly except these: - - cat cmp cp echo egrep expr grep - ln mkdir mv pwd rm rmdir sed test touch - - Stick to the generally supported options for these programs. For -example, don't use `mkdir -p', convenient as it may be, because most -systems don't support it. - - The Makefile rules for building and installation can also use -compilers and related programs, but should do so via `make' variables -so that the user can substitute alternatives. Here are some of the -programs we mean: - - ar bison cc flex install ld lex - make makeinfo ranlib texi2dvi yacc - - Use the following `make' variables: - - $(AR) $(BISON) $(CC) $(FLEX) $(INSTALL) $(LD) $(LEX) - $(MAKE) $(MAKEINFO) $(RANLIB) $(TEXI2DVI) $(YACC) - - When you use `ranlib', you should make sure nothing bad happens if -the system does not have `ranlib'. Arrange to ignore an error from -that command, and print a message before the command to tell the user -that failure of the `ranlib' command does not mean a problem. - - If you use symbolic links, you should implement a fallback for -systems that don't have symbolic links. - - It is ok to use other utilities in Makefile portions (or scripts) -intended only for particular systems where you know those utilities to -exist. - - -File: standards.info, Node: Standard Targets, Next: Command Variables, Prev: Utilities in Makefiles, Up: Makefile Conventions - -Standard Targets for Users -========================== - - All GNU programs should have the following targets in their -Makefiles: - -`all' - Compile the entire program. This should be the default target. - This target need not rebuild any documentation files; Info files - should normally be included in the distribution, and DVI files - should be made only when explicitly asked for. - -`install' - Compile the program and copy the executables, libraries, and so on - to the file names where they should reside for actual use. If - there is a simple test to verify that a program is properly - installed, this target should run that test. - - The commands should create all the directories in which files are - to be installed, if they don't already exist. This includes the - directories specified as the values of the variables `prefix' and - `exec_prefix', as well as all subdirectories that are needed. One - way to do this is by means of an `installdirs' target as described - below. - - Use `-' before any command for installing a man page, so that - `make' will ignore any errors. This is in case there are systems - that don't have the Unix man page documentation system installed. - - The way to install Info files is to copy them into `$(infodir)' - with `$(INSTALL_DATA)' (*note Command Variables::.), and then run - the `install-info' program if it is present. `install-info' is a - script that edits the Info `dir' file to add or update the menu - entry for the given Info file; it will be part of the Texinfo - package. Here is a sample rule to install an Info file: - - $(infodir)/foo.info: foo.info - # There may be a newer info file in . than in srcdir. - -if test -f foo.info; then d=.; \ - else d=$(srcdir); fi; \ - $(INSTALL_DATA) $$d/foo.info $@; \ - # Run install-info only if it exists. - # Use `if' instead of just prepending `-' to the - # line so we notice real errors from install-info. - # We use `$(SHELL) -c' because some shells do not - # fail gracefully when there is an unknown command. - if $(SHELL) -c 'install-info --version' \ - >/dev/null 2>&1; then \ - install-info --infodir=$(infodir) $$d/foo.info; \ - else true; fi - -`uninstall' - Delete all the installed files that the `install' target would - create (but not the noninstalled files such as `make all' would - create). - -`clean' - Delete all files from the current directory that are normally - created by building the program. Don't delete the files that - record the configuration. Also preserve files that could be made - by building, but normally aren't because the distribution comes - with them. - - Delete `.dvi' files here if they are not part of the distribution. - -`distclean' - Delete all files from the current directory that are created by - configuring or building the program. If you have unpacked the - source and built the program without creating any other files, - `make distclean' should leave only the files that were in the - distribution. - -`mostlyclean' - Like `clean', but may refrain from deleting a few files that people - normally don't want to recompile. For example, the `mostlyclean' - target for GCC does not delete `libgcc.a', because recompiling it - is rarely necessary and takes a lot of time. - -`realclean' - Delete everything from the current directory that can be - reconstructed with this Makefile. This typically includes - everything deleted by `distclean', plus more: C source files - produced by Bison, tags tables, Info files, and so on. - - One exception, however: `make realclean' should not delete - `configure' even if `configure' can be remade using a rule in the - Makefile. More generally, `make realclean' should not delete - anything that needs to exist in order to run `configure' and then - begin to build the program. - -`TAGS' - Update a tags table for this program. - -`info' - Generate any Info files needed. The best way to write the rules - is as follows: - - info: foo.info - - foo.info: foo.texi chap1.texi chap2.texi - $(MAKEINFO) $(srcdir)/foo.texi - - You must define the variable `MAKEINFO' in the Makefile. It should - run the `makeinfo' program, which is part of the Texinfo - distribution. - -`dvi' - Generate DVI files for all TeXinfo documentation. For example: - - dvi: foo.dvi - - foo.dvi: foo.texi chap1.texi chap2.texi - $(TEXI2DVI) $(srcdir)/foo.texi - - You must define the variable `TEXI2DVI' in the Makefile. It should - run the program `texi2dvi', which is part of the Texinfo - distribution. Alternatively, write just the dependencies, and - allow GNU Make to provide the command. - -`dist' - Create a distribution tar file for this program. The tar file - should be set up so that the file names in the tar file start with - a subdirectory name which is the name of the package it is a - distribution for. This name can include the version number. - - For example, the distribution tar file of GCC version 1.40 unpacks - into a subdirectory named `gcc-1.40'. - - The easiest way to do this is to create a subdirectory - appropriately named, use `ln' or `cp' to install the proper files - in it, and then `tar' that subdirectory. - - The `dist' target should explicitly depend on all non-source files - that are in the distribution, to make sure they are up to date in - the distribution. *Note Making Releases: (standards)Releases. - -`check' - Perform self-tests (if any). The user must build the program - before running the tests, but need not install the program; you - should write the self-tests so that they work when the program is - built but not installed. - - The following targets are suggested as conventional names, for -programs in which they are useful. - -`installcheck' - Perform installation tests (if any). The user must build and - install the program before running the tests. You should not - assume that `$(bindir)' is in the search path. - -`installdirs' - It's useful to add a target named `installdirs' to create the - directories where files are installed, and their parent - directories. There is a script called `mkinstalldirs' which is - convenient for this; find it in the Texinfo package.You can use a - rule like this: - - # Make sure all installation directories (e.g. $(bindir)) - # actually exist by making them if necessary. - installdirs: mkinstalldirs - $(srcdir)/mkinstalldirs $(bindir) $(datadir) \ - $(libdir) $(infodir) \ - $(mandir) - - -File: standards.info, Node: Command Variables, Next: Directory Variables, Prev: Standard Targets, Up: Makefile Conventions - -Variables for Specifying Commands -================================= - - Makefiles should provide variables for overriding certain commands, -options, and so on. - - In particular, you should run most utility programs via variables. -Thus, if you use Bison, have a variable named `BISON' whose default -value is set with `BISON = bison', and refer to it with `$(BISON)' -whenever you need to use Bison. - - File management utilities such as `ln', `rm', `mv', and so on, need -not be referred to through variables in this way, since users don't -need to replace them with other programs. - - Each program-name variable should come with an options variable that -is used to supply options to the program. Append `FLAGS' to the -program-name variable name to get the options variable name--for -example, `BISONFLAGS'. (The name `CFLAGS' is an exception to this -rule, but we keep it because it is standard.) Use `CPPFLAGS' in any -compilation command that runs the preprocessor, and use `LDFLAGS' in -any compilation command that does linking as well as in any direct use -of `ld'. - - If there are C compiler options that *must* be used for proper -compilation of certain files, do not include them in `CFLAGS'. Users -expect to be able to specify `CFLAGS' freely themselves. Instead, -arrange to pass the necessary options to the C compiler independently -of `CFLAGS', by writing them explicitly in the compilation commands or -by defining an implicit rule, like this: - - CFLAGS = -g - ALL_CFLAGS = -I. $(CFLAGS) - .c.o: - $(CC) -c $(CPPFLAGS) $(ALL_CFLAGS) $< - - Do include the `-g' option in `CFLAGS', because that is not -*required* for proper compilation. You can consider it a default that -is only recommended. If the package is set up so that it is compiled -with GCC by default, then you might as well include `-O' in the default -value of `CFLAGS' as well. - - Put `CFLAGS' last in the compilation command, after other variables -containing compiler options, so the user can use `CFLAGS' to override -the others. - - Every Makefile should define the variable `INSTALL', which is the -basic command for installing a file into the system. - - Every Makefile should also define the variables `INSTALL_PROGRAM' -and `INSTALL_DATA'. (The default for each of these should be -`$(INSTALL)'.) Then it should use those variables as the commands for -actual installation, for executables and nonexecutables respectively. -Use these variables as follows: - - $(INSTALL_PROGRAM) foo $(bindir)/foo - $(INSTALL_DATA) libfoo.a $(libdir)/libfoo.a - -Always use a file name, not a directory name, as the second argument of -the installation commands. Use a separate command for each file to be -installed. - - -File: standards.info, Node: Directory Variables, Prev: Command Variables, Up: Makefile Conventions - -Variables for Installation Directories -====================================== - - Installation directories should always be named by variables, so it -is easy to install in a nonstandard place. The standard names for these -variables are as follows. - - These two variables set the root for the installation. All the other -installation directories should be subdirectories of one of these two, -and nothing should be directly installed into these two directories. - -`prefix' - A prefix used in constructing the default values of the variables - listed below. The default value of `prefix' should be `/usr/local' - (at least for now). - -`exec_prefix' - A prefix used in constructing the default values of some of the - variables listed below. The default value of `exec_prefix' should - be `$(prefix)'. - - Generally, `$(exec_prefix)' is used for directories that contain - machine-specific files (such as executables and subroutine - libraries), while `$(prefix)' is used directly for other - directories. - - Executable programs are installed in one of the following -directories. - -`bindir' - The directory for installing executable programs that users can - run. This should normally be `/usr/local/bin', but write it as - `$(exec_prefix)/bin'. - -`sbindir' - The directory for installing executable programs that can be run - from the shell, but are only generally useful to system - administrators. This should normally be `/usr/local/sbin', but - write it as `$(exec_prefix)/sbin'. - -`libexecdir' - The directory for installing executable programs to be run by other - programs rather than by users. This directory should normally be - `/usr/local/libexec', but write it as `$(exec_prefix)/libexec'. - - Data files used by the program during its execution are divided into -categories in two ways. - - * Some files are normally modified by programs; others are never - normally modified (though users may edit some of these). - - * Some files are architecture-independent and can be shared by all - machines at a site; some are architecture-dependent and can be - shared only by machines of the same kind and operating system; - others may never be shared between two machines. - - This makes for six different possibilities. However, we want to -discourage the use of architecture-dependent files, aside from of object -files and libraries. It is much cleaner to make other data files -architecture-independent, and it is generally not hard. - - Therefore, here are the variables makefiles should use to specify -directories: - -`datadir' - The directory for installing read-only architecture independent - data files. This should normally be `/usr/local/share', but write - it as `$(prefix)/share'. As a special exception, see `$(infodir)' - and `$(includedir)' below. - -`sysconfdir' - The directory for installing read-only data files that pertain to a - single machine-that is to say, files for configuring a host. - Mailer and network configuration files, `/etc/passwd', and so - forth belong here. All the files in this directory should be - ordinary ASCII text files. This directory should normally be - `/usr/local/etc', but write it as `$(prefix)/etc'. - - Do not install executables in this directory (they probably belong - in `$(libexecdir)' or `$(sbindir))'. Also do not install files - that are modified in the normal course of their use (programs - whose purpose is to change the configuration of the system - excluded). Those probably belong in `$(localstatedir)'. - -`sharedstatedir' - The directory for installing architecture-independent data files - which the programs modify while they run. This should normally be - `/usr/local/com', but write it as `$(prefix)/com'. - -`localstatedir' - The directory for installing data files which the programs modify - while they run, and that pertain to one specific machine. Users - should never need to modify files in this directory to configure - the package's operation; put such configuration information in - separate files that go in `datadir' or `$(sysconfdir)'. - `$(localstatedir)' should normally be `/usr/local/var', but write - it as `$(prefix)/var'. - -`libdir' - The directory for object files and libraries of object code. Do - not install executables here, they probably belong in - `$(libexecdir)' instead. The value of `libdir' should normally be - `/usr/local/lib', but write it as `$(exec_prefix)/lib'. - -`infodir' - The directory for installing the Info files for this package. By - default, it should be `/usr/local/info', but it should be written - as `$(prefix)/info'. - -`includedir' - The directory for installing header files to be included by user - programs with the C `#include' preprocessor directive. This - should normally be `/usr/local/include', but write it as - `$(prefix)/include'. - - Most compilers other than GCC do not look for header files in - `/usr/local/include'. So installing the header files this way is - only useful with GCC. Sometimes this is not a problem because some - libraries are only really intended to work with GCC. But some - libraries are intended to work with other compilers. They should - install their header files in two places, one specified by - `includedir' and one specified by `oldincludedir'. - -`oldincludedir' - The directory for installing `#include' header files for use with - compilers other than GCC. This should normally be `/usr/include'. - - The Makefile commands should check whether the value of - `oldincludedir' is empty. If it is, they should not try to use - it; they should cancel the second installation of the header files. - - A package should not replace an existing header in this directory - unless the header came from the same package. Thus, if your Foo - package provides a header file `foo.h', then it should install the - header file in the `oldincludedir' directory if either (1) there - is no `foo.h' there or (2) the `foo.h' that exists came from the - Foo package. - - To tell whether `foo.h' came from the Foo package, put a magic - string in the file--part of a comment--and grep for that string. - - Unix-style man pages are installed in one of the following: - -`mandir' - The directory for installing the man pages (if any) for this - package. It should include the suffix for the proper section of - the manual--usually `1' for a utility. It will normally be - `/usr/local/man/man1', but you should write it as - `$(prefix)/man/man1'. - -`man1dir' - The directory for installing section 1 man pages. - -`man2dir' - The directory for installing section 2 man pages. - -`...' - Use these names instead of `mandir' if the package needs to - install man pages in more than one section of the manual. - - *Don't make the primary documentation for any GNU software be a - man page. Write a manual in Texinfo instead. Man pages are just - for the sake of people running GNU software on Unix, which is a - secondary application only.* - -`manext' - The file name extension for the installed man page. This should - contain a period followed by the appropriate digit; it should - normally be `.1'. - -`man1ext' - The file name extension for installed section 1 man pages. - -`man2ext' - The file name extension for installed section 2 man pages. - -`...' - Use these names instead of `manext' if the package needs to - install man pages in more than one section of the manual. - - And finally, you should set the following variable: - -`srcdir' - The directory for the sources being compiled. The value of this - variable is normally inserted by the `configure' shell script. - - For example: - - # Common prefix for installation directories. - # NOTE: This directory must exist when you start the install. - prefix = /usr/local - exec_prefix = $(prefix) - # Where to put the executable for the command `gcc'. - bindir = $(exec_prefix)/bin - # Where to put the directories used by the compiler. - libexecdir = $(exec_prefix)/libexec - # Where to put the Info files. - infodir = $(prefix)/info - - If your program installs a large number of files into one of the -standard user-specified directories, it might be useful to group them -into a subdirectory particular to that program. If you do this, you -should write the `install' rule to create these subdirectories. - - Do not expect the user to include the subdirectory name in the value -of any of the variables listed above. The idea of having a uniform set -of variable names for installation directories is to enable the user to -specify the exact same values for several different GNU packages. In -order for this to be useful, all the packages must be designed so that -they will work sensibly when the user does so. - - -File: standards.info, Node: Configuration, Next: Source Language, Prev: Makefile Conventions, Up: Top - -How Configuration Should Work -***************************** - - Each GNU distribution should come with a shell script named -`configure'. This script is given arguments which describe the kind of -machine and system you want to compile the program for. - - The `configure' script must record the configuration options so that -they affect compilation. - - One way to do this is to make a link from a standard name such as -`config.h' to the proper configuration file for the chosen system. If -you use this technique, the distribution should *not* contain a file -named `config.h'. This is so that people won't be able to build the -program without configuring it first. - - Another thing that `configure' can do is to edit the Makefile. If -you do this, the distribution should *not* contain a file named -`Makefile'. Instead, include a file `Makefile.in' which contains the -input used for editing. Once again, this is so that people won't be -able to build the program without configuring it first. - - If `configure' does write the `Makefile', then `Makefile' should -have a target named `Makefile' which causes `configure' to be rerun, -setting up the same configuration that was set up last time. The files -that `configure' reads should be listed as dependencies of `Makefile'. - - All the files which are output from the `configure' script should -have comments at the beginning explaining that they were generated -automatically using `configure'. This is so that users won't think of -trying to edit them by hand. - - The `configure' script should write a file named `config.status' -which describes which configuration options were specified when the -program was last configured. This file should be a shell script which, -if run, will recreate the same configuration. - - The `configure' script should accept an option of the form -`--srcdir=DIRNAME' to specify the directory where sources are found (if -it is not the current directory). This makes it possible to build the -program in a separate directory, so that the actual source directory is -not modified. - - If the user does not specify `--srcdir', then `configure' should -check both `.' and `..' to see if it can find the sources. If it finds -the sources in one of these places, it should use them from there. -Otherwise, it should report that it cannot find the sources, and should -exit with nonzero status. - - Usually the easy way to support `--srcdir' is by editing a -definition of `VPATH' into the Makefile. Some rules may need to refer -explicitly to the specified source directory. To make this possible, -`configure' can add to the Makefile a variable named `srcdir' whose -value is precisely the specified directory. - - The `configure' script should also take an argument which specifies -the type of system to build the program for. This argument should look -like this: - - CPU-COMPANY-SYSTEM - - For example, a Sun 3 might be `m68k-sun-sunos4.1'. - - The `configure' script needs to be able to decode all plausible -alternatives for how to describe a machine. Thus, `sun3-sunos4.1' -would be a valid alias. So would `sun3-bsd4.2', since SunOS is -basically BSD and no other BSD system is used on a Sun. For many -programs, `vax-dec-ultrix' would be an alias for `vax-dec-bsd', simply -because the differences between Ultrix and BSD are rarely noticeable, -but a few programs might need to distinguish them. - - There is a shell script called `config.sub' that you can use as a -subroutine to validate system types and canonicalize aliases. - - Other options are permitted to specify in more detail the software -or hardware present on the machine, and include or exclude optional -parts of the package: - -`--enable-FEATURE[=PARAMETER]' - Configure the package to build and install an optional user-level - facility called FEATURE. This allows users to choose which - optional features to include. Giving an optional PARAMETER of - `no' should omit FEATURE, if it is built by default. - - No `--enable' option should *ever* cause one feature to replace - another. No `--enable' option should ever substitute one useful - behavior for another useful behavior. The only proper use for - `--enable' is for questions of whether to build part of the program - or exclude it. - -`--with-PACKAGE' - The package PACKAGE will be installed, so configure this package - to work with PACKAGE. - - Possible values of PACKAGE include `x', `x-toolkit', `gnu-as' (or - `gas'), `gnu-ld', `gnu-libc', and `gdb'. - - Do not use a `--with' option to specify the file name to use to - find certain files. That is outside the scope of what `--with' - options are for. - -`--nfp' - The target machine has no floating point processor. - -`--gas' - The target machine assembler is GAS, the GNU assembler. This is - obsolete; users should use `--with-gnu-as' instead. - -`--x' - The target machine has the X Window System installed. This is - obsolete; users should use `--with-x' instead. - - All `configure' scripts should accept all of these "detail" options, -whether or not they make any difference to the particular package at -hand. In particular, they should accept any option that starts with -`--with-' or `--enable-'. This is so users will be able to configure -an entire GNU source tree at once with a single set of options. - - You will note that the categories `--with-' and `--enable-' are -narrow: they *do not* provide a place for any sort of option you might -think of. That is deliberate. We want to limit the possible -configuration options in GNU software. We do not want GNU programs to -have idiosyncratic configuration options. - - Packages that perform part of compilation may support -cross-compilation. In such a case, the host and target machines for -the program may be different. The `configure' script should normally -treat the specified type of system as both the host and the target, -thus producing a program which works for the same type of machine that -it runs on. - - The way to build a cross-compiler, cross-assembler, or what have -you, is to specify the option `--host=HOSTTYPE' when running -`configure'. This specifies the host system without changing the type -of target system. The syntax for HOSTTYPE is the same as described -above. - - Bootstrapping a cross-compiler requires compiling it on a machine -other than the host it will run on. Compilation packages accept a -configuration option `--build=HOSTTYPE' for specifying the -configuration on which you will compile them, in case that is different -from the host. - - Programs for which cross-operation is not meaningful need not accept -the `--host' option, because configuring an entire operating system for -cross-operation is not a meaningful thing. - - Some programs have ways of configuring themselves automatically. If -your program is set up to do this, your `configure' script can simply -ignore most of its arguments. - - -File: standards.info, Node: Source Language, Next: Formatting, Prev: Configuration, Up: Top - -Using Languages Other Than C -**************************** - - Using a language other than C is like using a non-standard feature: -it will cause trouble for users. Even if GCC supports the other -language, users may find it inconvenient to have to install the -compiler for that other language in order to build your program. So -please write in C. - - There are three exceptions for this rule: - - * It is okay to use a special language if the same program contains - an interpreter for that language. - - Thus, it is not a problem that GNU Emacs contains code written in - Emacs Lisp, because it comes with a Lisp interpreter. - - * It is okay to use another language in a tool specifically intended - for use with that language. - - This is okay because the only people who want to build the tool - will be those who have installed the other language anyway. - - * If an application is not of extremely widespread interest, then - perhaps it's not important if the application is inconvenient to - install. - - -File: standards.info, Node: Formatting, Next: Comments, Prev: Source Language, Up: Top - -Formatting Your Source Code -*************************** - - It is important to put the open-brace that starts the body of a C -function in column zero, and avoid putting any other open-brace or -open-parenthesis or open-bracket in column zero. Several tools look -for open-braces in column zero to find the beginnings of C functions. -These tools will not work on code not formatted that way. - - It is also important for function definitions to start the name of -the function in column zero. This helps people to search for function -definitions, and may also help certain tools recognize them. Thus, the -proper format is this: - - static char * - concat (s1, s2) /* Name starts in column zero here */ - char *s1, *s2; - { /* Open brace in column zero here */ - ... - } - -or, if you want to use ANSI C, format the definition like this: - - static char * - concat (char *s1, char *s2) - { - ... - } - - In ANSI C, if the arguments don't fit nicely on one line, split it -like this: - - int - lots_of_args (int an_integer, long a_long, short a_short, - double a_double, float a_float) - ... - - For the body of the function, we prefer code formatted like this: - - if (x < foo (y, z)) - haha = bar[4] + 5; - else - { - while (z) - { - haha += foo (z, z); - z--; - } - return ++x + bar (); - } - - We find it easier to read a program when it has spaces before the -open-parentheses and after the commas. Especially after the commas. - - When you split an expression into multiple lines, split it before an -operator, not after one. Here is the right way: - - if (foo_this_is_long && bar > win (x, y, z) - && remaining_condition) - - Try to avoid having two operators of different precedence at the same -level of indentation. For example, don't write this: - - mode = (inmode[j] == VOIDmode - || GET_MODE_SIZE (outmode[j]) > GET_MODE_SIZE (inmode[j]) - ? outmode[j] : inmode[j]); - - Instead, use extra parentheses so that the indentation shows the -nesting: - - mode = ((inmode[j] == VOIDmode - || (GET_MODE_SIZE (outmode[j]) > GET_MODE_SIZE (inmode[j]))) - ? outmode[j] : inmode[j]); - - Insert extra parentheses so that Emacs will indent the code properly. -For example, the following indentation looks nice if you do it by hand, -but Emacs would mess it up: - - v = rup->ru_utime.tv_sec*1000 + rup->ru_utime.tv_usec/1000 - + rup->ru_stime.tv_sec*1000 + rup->ru_stime.tv_usec/1000; - - But adding a set of parentheses solves the problem: - - v = (rup->ru_utime.tv_sec*1000 + rup->ru_utime.tv_usec/1000 - + rup->ru_stime.tv_sec*1000 + rup->ru_stime.tv_usec/1000); - - Format do-while statements like this: - - do - { - a = foo (a); - } - while (a > 0); - - Please use formfeed characters (control-L) to divide the program into -pages at logical places (but not within a function). It does not matter -just how long the pages are, since they do not have to fit on a printed -page. The formfeeds should appear alone on lines by themselves. - - -File: standards.info, Node: Comments, Next: Syntactic Conventions, Prev: Formatting, Up: Top - -Commenting Your Work -******************** - - Every program should start with a comment saying briefly what it is -for. Example: `fmt - filter for simple filling of text'. - - Please put a comment on each function saying what the function does, -what sorts of arguments it gets, and what the possible values of -arguments mean and are used for. It is not necessary to duplicate in -words the meaning of the C argument declarations, if a C type is being -used in its customary fashion. If there is anything nonstandard about -its use (such as an argument of type `char *' which is really the -address of the second character of a string, not the first), or any -possible values that would not work the way one would expect (such as, -that strings containing newlines are not guaranteed to work), be sure -to say so. - - Also explain the significance of the return value, if there is one. - - Please put two spaces after the end of a sentence in your comments, -so that the Emacs sentence commands will work. Also, please write -complete sentences and capitalize the first word. If a lower-case -identifer comes at the beginning of a sentence, don't capitalize it! -Changing the spelling makes it a different identifier. If you don't -like starting a sentence with a lower case letter, write the sentence -differently (e.g., "The identifier lower-case is ..."). - - The comment on a function is much clearer if you use the argument -names to speak about the argument values. The variable name itself -should be lower case, but write it in upper case when you are speaking -about the value rather than the variable itself. Thus, "the inode -number NODE_NUM" rather than "an inode". - - There is usually no purpose in restating the name of the function in -the comment before it, because the reader can see that for himself. -There might be an exception when the comment is so long that the -function itself would be off the bottom of the screen. - - There should be a comment on each static variable as well, like this: - - /* Nonzero means truncate lines in the display; - zero means continue them. */ - int truncate_lines; - - Every `#endif' should have a comment, except in the case of short -conditionals (just a few lines) that are not nested. The comment should -state the condition of the conditional that is ending, *including its -sense*. `#else' should have a comment describing the condition *and -sense* of the code that follows. For example: - - #ifdef foo - ... - #else /* not foo */ - ... - #endif /* not foo */ - -but, by contrast, write the comments this way for a `#ifndef': - - #ifndef foo - ... - #else /* foo */ - ... - #endif /* foo */ - diff --git a/util/autoconf/standards.info-2 b/util/autoconf/standards.info-2 deleted file mode 100644 index 25570a0..0000000 --- a/util/autoconf/standards.info-2 +++ /dev/null @@ -1,1691 +0,0 @@ -This is Info file ../standards.info, produced by Makeinfo-1.55 from the -input file ../standards.texi. - -START-INFO-DIR-ENTRY -* Standards: (standards). GNU coding standards. -END-INFO-DIR-ENTRY - - GNU Coding Standards Copyright (C) 1992, 1993, 1994 Free Software -Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice are -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Free Software Foundation. - - -File: standards.info, Node: Syntactic Conventions, Next: Names, Prev: Comments, Up: Top - -Clean Use of C Constructs -************************* - - Please explicitly declare all arguments to functions. Don't omit -them just because they are `int's. - - Declarations of external functions and functions to appear later in -the source file should all go in one place near the beginning of the -file (somewhere before the first function definition in the file), or -else should go in a header file. Don't put `extern' declarations inside -functions. - - It used to be common practice to use the same local variables (with -names like `tem') over and over for different values within one -function. Instead of doing this, it is better declare a separate local -variable for each distinct purpose, and give it a name which is -meaningful. This not only makes programs easier to understand, it also -facilitates optimization by good compilers. You can also move the -declaration of each local variable into the smallest scope that includes -all its uses. This makes the program even cleaner. - - Don't use local variables or parameters that shadow global -identifiers. - - Don't declare multiple variables in one declaration that spans lines. -Start a new declaration on each line, instead. For example, instead of -this: - - int foo, - bar; - -write either this: - - int foo, bar; - -or this: - - int foo; - int bar; - -(If they are global variables, each should have a comment preceding it -anyway.) - - When you have an `if'-`else' statement nested in another `if' -statement, always put braces around the `if'-`else'. Thus, never write -like this: - - if (foo) - if (bar) - win (); - else - lose (); - -always like this: - - if (foo) - { - if (bar) - win (); - else - lose (); - } - - If you have an `if' statement nested inside of an `else' statement, -either write `else if' on one line, like this, - - if (foo) - ... - else if (bar) - ... - -with its `then'-part indented like the preceding `then'-part, or write -the nested `if' within braces like this: - - if (foo) - ... - else - { - if (bar) - ... - } - - Don't declare both a structure tag and variables or typedefs in the -same declaration. Instead, declare the structure tag separately and -then use it to declare the variables or typedefs. - - Try to avoid assignments inside `if'-conditions. For example, don't -write this: - - if ((foo = (char *) malloc (sizeof *foo)) == 0) - fatal ("virtual memory exhausted"); - -instead, write this: - - foo = (char *) malloc (sizeof *foo); - if (foo == 0) - fatal ("virtual memory exhausted"); - - Don't make the program ugly to placate `lint'. Please don't insert -any casts to `void'. Zero without a cast is perfectly fine as a null -pointer constant. - - -File: standards.info, Node: Names, Next: Using Extensions, Prev: Syntactic Conventions, Up: Top - -Naming Variables and Functions -****************************** - - Please use underscores to separate words in a name, so that the Emacs -word commands can be useful within them. Stick to lower case; reserve -upper case for macros and `enum' constants, and for name-prefixes that -follow a uniform convention. - - For example, you should use names like `ignore_space_change_flag'; -don't use names like `iCantReadThis'. - - Variables that indicate whether command-line options have been -specified should be named after the meaning of the option, not after -the option-letter. A comment should state both the exact meaning of -the option and its letter. For example, - - /* Ignore changes in horizontal whitespace (-b). */ - int ignore_space_change_flag; - - When you want to define names with constant integer values, use -`enum' rather than `#define'. GDB knows about enumeration constants. - - Use file names of 14 characters or less, to avoid creating gratuitous -problems on System V. You can use the program `doschk' to test for -this. `doschk' also tests for potential name conflicts if the files -were loaded onto an MS-DOS file system--something you may or may not -care about. - - -File: standards.info, Node: Using Extensions, Next: System Functions, Prev: Names, Up: Top - -Using Non-standard Features -*************************** - - Many GNU facilities that already exist support a number of convenient -extensions over the comparable Unix facilities. Whether to use these -extensions in implementing your program is a difficult question. - - On the one hand, using the extensions can make a cleaner program. -On the other hand, people will not be able to build the program unless -the other GNU tools are available. This might cause the program to -work on fewer kinds of machines. - - With some extensions, it might be easy to provide both alternatives. -For example, you can define functions with a "keyword" `INLINE' and -define that as a macro to expand into either `inline' or nothing, -depending on the compiler. - - In general, perhaps it is best not to use the extensions if you can -straightforwardly do without them, but to use the extensions if they -are a big improvement. - - An exception to this rule are the large, established programs (such -as Emacs) which run on a great variety of systems. Such programs would -be broken by use of GNU extensions. - - Another exception is for programs that are used as part of -compilation: anything that must be compiled with other compilers in -order to bootstrap the GNU compilation facilities. If these require -the GNU compiler, then no one can compile them without having them -installed already. That would be no good. - - Since most computer systems do not yet implement ANSI C, using the -ANSI C features is effectively using a GNU extension, so the same -considerations apply. (Except for ANSI features that we discourage, -such as trigraphs--don't ever use them.) - - -File: standards.info, Node: System Functions, Next: Semantics, Prev: Using Extensions, Up: Top - -Calling System Functions -************************ - - C implementations differ substantially. ANSI C reduces but does not -eliminate the incompatibilities; meanwhile, many users wish to compile -GNU software with pre-ANSI compilers. This chapter gives -recommendations for how to use the more or less standard C library -functions to avoid unnecessary loss of portability. - - * Don't use the value of `sprintf'. It returns the number of - characters written on some systems, but not on all systems. - - * Don't declare system functions explicitly. - - Almost any declaration for a system function is wrong on some - system. To minimize conflicts, leave it to the system header - files to declare system functions. If the headers don't declare a - function, let it remain undeclared. - - While it may seem unclean to use a function without declaring it, - in practice this works fine for most system library functions on - the systems where this really happens. The problem is only - theoretical. By contrast, actual declarations have frequently - caused actual conflicts. - - * If you must declare a system function, don't specify the argument - types. Use an old-style declaration, not an ANSI prototype. The - more you specify about the function, the more likely a conflict. - - * In particular, don't unconditionally declare `malloc' or `realloc'. - - Most GNU programs use those functions just once, in functions - conventionally named `xmalloc' and `xrealloc'. These functions - call `malloc' and `realloc', respectively, and check the results. - - Because `xmalloc' and `xrealloc' are defined in your program, you - can declare them in other files without any risk of type conflict. - - On most systems, `int' is the same length as a pointer; thus, the - calls to `malloc' and `realloc' work fine. For the few - exceptional systems (mostly 64-bit machines), you can use - *conditionalized* declarations of `malloc' and `realloc'--or put - these declarations in configuration files specific to those - systems. - - * The string functions require special treatment. Some Unix systems - have a header file `string.h'; other have `strings.h'. Neither - file name is portable. There are two things you can do: use - Autoconf to figure out which file to include, or don't include - either file. - - * If you don't include either strings file, you can't get - declarations for the string functions from the header file in the - usual way. - - That causes less of a problem than you might think. The newer ANSI - string functions are off-limits anyway because many systems still - don't support them. The string functions you can use are these: - - strcpy strncpy strcat strncat - strlen strcmp strncmp - strchr strrchr - - The copy and concatenate functions work fine without a declaration - as long as you don't use their values. Using their values without - a declaration fails on systems where the width of a pointer - differs from the width of `int', and perhaps in other cases. It - is trivial to avoid using their values, so do that. - - The compare functions and `strlen' work fine without a declaration - on most systems, possibly all the ones that GNU software runs on. - You may find it necessary to declare them *conditionally* on a few - systems. - - The search functions must be declared to return `char *'. Luckily, - there is no variation in the data type they return. But there is - variation in their names. Some systems give these functions the - names `index' and `rindex'; other systems use the names `strchr' - and `strrchr'. Some systems support both pairs of names, but - neither pair works on all systems. - - You should pick a single pair of names and use it throughout your - program. (Nowadays, it is better to choose `strchr' and - `strrchr'.) Declare both of those names as functions returning - `char *'. On systems which don't support those names, define them - as macros in terms of the other pair. For example, here is what - to put at the beginning of your file (or in a header) if you want - to use the names `strchr' and `strrchr' throughout: - - #ifndef HAVE_STRCHR - #define strchr index - #endif - #ifndef HAVE_STRRCHR - #define strrchr rindex - #endif - - char *strchr (); - char *strrchr (); - - Here we assume that `HAVE_STRCHR' and `HAVE_STRRCHR' are macros -defined in systems where the corresponding functions exist. One way to -get them properly defined is to use Autoconf. - - -File: standards.info, Node: Semantics, Next: Errors, Prev: System Functions, Up: Top - -Program Behavior for All Programs -********************************* - - Avoid arbitrary limits on the length or number of *any* data -structure, including filenames, lines, files, and symbols, by allocating -all data structures dynamically. In most Unix utilities, "long lines -are silently truncated". This is not acceptable in a GNU utility. - - Utilities reading files should not drop NUL characters, or any other -nonprinting characters *including those with codes above 0177*. The -only sensible exceptions would be utilities specifically intended for -interface to certain types of printers that can't handle those -characters. - - Check every system call for an error return, unless you know you -wish to ignore errors. Include the system error text (from `perror' or -equivalent) in *every* error message resulting from a failing system -call, as well as the name of the file if any and the name of the -utility. Just "cannot open foo.c" or "stat failed" is not sufficient. - - Check every call to `malloc' or `realloc' to see if it returned -zero. Check `realloc' even if you are making the block smaller; in a -system that rounds block sizes to a power of 2, `realloc' may get a -different block if you ask for less space. - - In Unix, `realloc' can destroy the storage block if it returns zero. -GNU `realloc' does not have this bug: if it fails, the original block -is unchanged. Feel free to assume the bug is fixed. If you wish to -run your program on Unix, and wish to avoid lossage in this case, you -can use the GNU `malloc'. - - You must expect `free' to alter the contents of the block that was -freed. Anything you want to fetch from the block, you must fetch before -calling `free'. - - If `malloc' fails in a noninteractive program, make that a fatal -error. In an interactive program (one that reads commands from the -user), it is better to abort the command and return to the command -reader loop. This allows the user to kill other processes to free up -virtual memory, and then try the command again. - - Use `getopt_long' to decode arguments, unless the argument syntax -makes this unreasonable. - - When static storage is to be written in during program execution, use -explicit C code to initialize it. Reserve C initialized declarations -for data that will not be changed. - - Try to avoid low-level interfaces to obscure Unix data structures -(such as file directories, utmp, or the layout of kernel memory), since -these are less likely to work compatibly. If you need to find all the -files in a directory, use `readdir' or some other high-level interface. -These will be supported compatibly by GNU. - - By default, the GNU system will provide the signal handling -functions of BSD and of POSIX. So GNU software should be written to use -these. - - In error checks that detect "impossible" conditions, just abort. -There is usually no point in printing any message. These checks -indicate the existence of bugs. Whoever wants to fix the bugs will have -to read the source code and run a debugger. So explain the problem with -comments in the source. The relevant data will be in variables, which -are easy to examine with the debugger, so there is no point moving them -elsewhere. - - -File: standards.info, Node: Errors, Next: Libraries, Prev: Semantics, Up: Top - -Formatting Error Messages -************************* - - Error messages from compilers should look like this: - - SOURCE-FILE-NAME:LINENO: MESSAGE - - Error messages from other noninteractive programs should look like -this: - - PROGRAM:SOURCE-FILE-NAME:LINENO: MESSAGE - -when there is an appropriate source file, or like this: - - PROGRAM: MESSAGE - -when there is no relevant source file. - - In an interactive program (one that is reading commands from a -terminal), it is better not to include the program name in an error -message. The place to indicate which program is running is in the -prompt or with the screen layout. (When the same program runs with -input from a source other than a terminal, it is not interactive and -would do best to print error messages using the noninteractive style.) - - The string MESSAGE should not begin with a capital letter when it -follows a program name and/or filename. Also, it should not end with a -period. - - Error messages from interactive programs, and other messages such as -usage messages, should start with a capital letter. But they should not -end with a period. - - -File: standards.info, Node: Libraries, Next: Portability, Prev: Errors, Up: Top - -Library Behavior -**************** - - Try to make library functions reentrant. If they need to do dynamic -storage allocation, at least try to avoid any nonreentrancy aside from -that of `malloc' itself. - - Here are certain name conventions for libraries, to avoid name -conflicts. - - Choose a name prefix for the library, more than two characters long. -All external function and variable names should start with this prefix. -In addition, there should only be one of these in any given library -member. This usually means putting each one in a separate source file. - - An exception can be made when two external symbols are always used -together, so that no reasonable program could use one without the -other; then they can both go in the same file. - - External symbols that are not documented entry points for the user -should have names beginning with `_'. They should also contain the -chosen name prefix for the library, to prevent collisions with other -libraries. These can go in the same files with user entry points if -you like. - - Static functions and variables can be used as you like and need not -fit any naming convention. - - -File: standards.info, Node: Portability, Next: User Interfaces, Prev: Libraries, Up: Top - -Portability As It Applies to GNU -******************************** - - Much of what is called "portability" in the Unix world refers to -porting to different Unix versions. This is a secondary consideration -for GNU software, because its primary purpose is to run on top of one -and only one kernel, the GNU kernel, compiled with one and only one C -compiler, the GNU C compiler. The amount and kinds of variation among -GNU systems on different cpu's will be like the variation among Berkeley -4.3 systems on different cpu's. - - All users today run GNU software on non-GNU systems. So supporting a -variety of non-GNU systems is desirable; simply not paramount. The -easiest way to achieve portability to a reasonable range of systems is -to use Autoconf. It's unlikely that your program needs to know more -information about the host machine than Autoconf can provide, simply -because most of the programs that need such knowledge have already been -written. - - It is difficult to be sure exactly what facilities the GNU kernel -will provide, since it isn't finished yet. Therefore, assume you can -use anything in 4.3; just avoid using the format of semi-internal data -bases (e.g., directories) when there is a higher-level alternative -(`readdir'). - - You can freely assume any reasonably standard facilities in the C -language, libraries or kernel, because we will find it necessary to -support these facilities in the full GNU system, whether or not we have -already done so. The fact that there may exist kernels or C compilers -that lack these facilities is irrelevant as long as the GNU kernel and -C compiler support them. - - It remains necessary to worry about differences among cpu types, such -as the difference in byte ordering and alignment restrictions. It's -unlikely that 16-bit machines will ever be supported by GNU, so there -is no point in spending any time to consider the possibility that an -int will be less than 32 bits. - - You can assume that all pointers have the same format, regardless of -the type they point to, and that this is really an integer. There are -some weird machines where this isn't true, but they aren't important; -don't waste time catering to them. Besides, eventually we will put -function prototypes into all GNU programs, and that will probably make -your program work even on weird machines. - - Since some important machines (including the 68000) are big-endian, -it is important not to assume that the address of an `int' object is -also the address of its least-significant byte. Thus, don't make the -following mistake: - - int c; - ... - while ((c = getchar()) != EOF) - write(file_descriptor, &c, 1); - - You can assume that it is reasonable to use a meg of memory. Don't -strain to reduce memory usage unless it can get to that level. If your -program creates complicated data structures, just make them in core and -give a fatal error if malloc returns zero. - - If a program works by lines and could be applied to arbitrary -user-supplied input files, it should keep only a line in memory, because -this is not very hard and users will want to be able to operate on input -files that are bigger than will fit in core all at once. - - -File: standards.info, Node: User Interfaces, Next: Documentation, Prev: Portability, Up: Top - -Standards for Command Line Interfaces -************************************* - - Please don't make the behavior of a utility depend on the name used -to invoke it. It is useful sometimes to make a link to a utility with -a different name, and that should not change what it does. - - Instead, use a run time option or a compilation switch or both to -select among the alternate behaviors. - - Likewise, please don't make the behavior of the program depend on the -type of output device it is used with. Device independence is an -important principle of the system's design; do not compromise it merely -to save someone from typing an option now and then. - - If you think one behavior is most useful when the output is to a -terminal, and another is most useful when the output is a file or a -pipe, then it is usually best to make the default behavior the one that -is useful with output to a terminal, and have an option for the other -behavior. - - Compatibility requires certain programs to depend on the type of -output device. It would be disastrous if `ls' or `sh' did not do so in -the way all users expect. In some of these cases, we supplement the -program with a preferred alternate version that does not depend on the -output device type. For example, we provide a `dir' program much like -`ls' except that its default output format is always multi-column -format. - - It is a good idea to follow the POSIX guidelines for the -command-line options of a program. The easiest way to do this is to use -`getopt' to parse them. Note that the GNU version of `getopt' will -normally permit options anywhere among the arguments unless the special -argument `--' is used. This is not what POSIX specifies; it is a GNU -extension. - - Please define long-named options that are equivalent to the -single-letter Unix-style options. We hope to make GNU more user -friendly this way. This is easy to do with the GNU function -`getopt_long'. - - One of the advantages of long-named options is that they can be -consistent from program to program. For example, users should be able -to expect the "verbose" option of any GNU program which has one, to be -spelled precisely `--verbose'. To achieve this uniformity, look at the -table of common long-option names when you choose the option names for -your program. The table appears below. - - If you use names not already in the table, please send -`gnu@prep.ai.mit.edu' a list of them, with their meanings, so we can -update the table. - - It is usually a good idea for file names given as ordinary arguments -to be input files only; any output files would be specified using -options (preferably `-o'). Even if you allow an output file name as an -ordinary argument for compatibility, try to provide a suitable option -as well. This will lead to more consistency among GNU utilities, so -that there are fewer idiosyncracies for users to remember. - - Programs should support an option `--version' which prints the -program's version number on standard output and exits successfully, and -an option `--help' which prints option usage information on standard -output and exits successfully. These options should inhibit the normal -function of the command; they should do nothing except print the -requested information. - -`auto-check' - `-a' in `recode'. - -`auto-reference' - `-A' in `ptx'. - -`after-date' - `-N' in `tar'. - -`all' - `-a' in `du', `ls', `nm', `stty', `uname', and `unexpand'. - -`all-text' - `-a' in `diff'. - -`almost-all' - `-A' in `ls'. - -`append' - `-a' in `etags', `tee', `time'; `-r' in `tar'. - -`archive' - `-a' in `cp'. - -`archive-name' - `-n' in `shar'. - -`arglength' - `-l' in `m4'. - -`ascii' - `-a' in `diff'. - -`assume-new' - `-W' in Make. - -`assume-old' - `-o' in Make. - -`backward-search' - `-B' in etags. - -`basename' - `-f' in `shar'. - -`batch' - Used in GDB. - -`baud' - Used in GDB. - -`before' - `-b' in `tac'. - -`binary' - `-b' in `cpio' and `diff'. - -`bits-per-code' - `-b' in `shar'. - -`block-size' - Used in `cpio' and `tar'. - -`blocks' - `-b' in `head' and `tail'. - -`break-file' - `-b' in `ptx'. - -`brief' - Used in various programs to make output shorter. - -`bytes' - `-c' in `head', `split', and `tail'. - -`c++' - `-C' in `etags'. - -`catenate' - `-A' in `tar'. - -`cd' - Used in various programs to specify the directory to use. - -`changes' - `-c' in `chgrp' and `chown'. - -`classify' - `-F' in `ls'. - -`colons' - `-c' in `recode'. - -`command' - `-c' in `su'; `-x' in GDB. - -`compare' - `-d' in `tar'. - -`compress' - `-Z' in `tar' and `shar'. - -`concatenate' - `-A' in `tar'. - -`confirmation' - `-w' in `tar'. - -`context' - Used in `diff'. - -`copyright' - `-C' in `ptx' and `recode'. - -`core' - Used in GDB. - -`count' - `-q' in `who'. - -`count-links' - `-l' in `du'. - -`create' - Used in `tar' and `cpio'. - -`cut-mark' - `-c' in `shar'. - -`cxref' - `-x' in `etags'. - -`date' - `-d' in `touch'. - -`debug' - `-d' in Make and `m4'; `-t' in Bison. - -`define' - `-D' in `m4'. - -`defines' - `-d' in Bison and `etags'. - -`delete' - `-D' in `tar'. - -`dereference' - `-L' in `chgrp', `chown', `cpio', `du', `ls', and `tar'. - -`dereference-args' - `-D' in `du'. - -`diacritics' - `-d' in `recode'. - -`dictionary-order' - `-d' in `look'. - -`diff' - `-d' in `tar'. - -`digits' - `-n' in `csplit'. - -`directory' - Specify the directory to use, in various programs. In `ls', it - means to show directories themselves rather than their contents. - In `rm' and `ln', it means to not treat links to directories - specially. - -`discard-all' - `-x' in `strip'. - -`discard-locals' - `-X' in `strip'. - -`diversions' - `-N' in `m4'. - -`dry-run' - `-n' in Make. - -`ed' - `-e' in `diff'. - -`elide-empty-files' - `-z' in `csplit'. - -`entire-new-file' - `-N' in `diff'. - -`environment-overrides' - `-e' in Make. - -`eof' - `-e' in `xargs'. - -`epoch' - Used in GDB. - -`error-limit' - Used in Makeinfo. - -`error-output' - `-o' in `m4'. - -`escape' - `-b' in `ls'. - -`exclude-from' - `-X' in `tar'. - -`exec' - Used in GDB. - -`exit' - `-x' in `xargs'. - -`exit-0' - `-e' in `unshar'. - -`expand-tabs' - `-t' in `diff'. - -`expression' - `-e' in `sed'. - -`extern-only' - `-g' in `nm'. - -`extract' - `-i' in `cpio'; `-x' in `tar'. - -`faces' - `-f' in `finger'. - -`fast' - `-f' in `su'. - -`fatal-warnings' - `-E' in `m4'. - -`file' - `-f' in `info', Make, `mt', and `tar'; `-n' in `sed'; `-r' in - `touch'. - -`file-prefix' - `-b' in Bison. - -`file-type' - `-F' in `ls'. - -`files-from' - `-T' in `tar'. - -`fill-column' - Used in Makeinfo. - -`flag-truncation' - `-F' in `ptx'. - -`fixed-output-files' - `-y' in Bison. - -`follow' - `-f' in `tail'. - -`footnote-style' - Used in Makeinfo. - -`force' - `-f' in `cp', `ln', `mv', and `rm'. - -`force-prefix' - `-F' in `shar'. - -`format' - Used in `ls', `time', and `ptx'. - -`forward-search' - `-F' in `etags'. - -`fullname' - Used in GDB. - -`gap-size' - `-g' in `ptx'. - -`get' - `-x' in `tar'. - -`graphic' - `-i' in `ul'. - -`graphics' - `-g' in `recode'. - -`group' - `-g' in `install'. - -`gzip' - `-z' in `tar' and `shar'. - -`hashsize' - `-H' in `m4'. - -`header' - `-h' in `objdump' and `recode' - -`heading' - `-H' in `who'. - -`help' - Used to ask for brief usage information. - -`here-delimiter' - `-d' in `shar'. - -`hide-control-chars' - `-q' in `ls'. - -`idle' - `-u' in `who'. - -`ifdef' - `-D' in `diff'. - -`ignore' - `-I' in `ls'; `-x' in `recode'. - -`ignore-all-space' - `-w' in `diff'. - -`ignore-backups' - `-B' in `ls'. - -`ignore-blank-lines' - `-B' in `diff'. - -`ignore-case' - `-f' in `look' and `ptx'; `-i' in `diff'. - -`ignore-errors' - `-i' in Make. - -`ignore-file' - `-i' in `ptx'. - -`ignore-indentation' - `-S' in `etags'. - -`ignore-init-file' - `-f' in Oleo. - -`ignore-interrupts' - `-i' in `tee'. - -`ignore-matching-lines' - `-I' in `diff'. - -`ignore-space-change' - `-b' in `diff'. - -`ignore-zeros' - `-i' in `tar'. - -`include' - `-i' in `etags'; `-I' in `m4'. - -`include-dir' - `-I' in Make. - -`incremental' - `-G' in `tar'. - -`info' - `-i', `-l', and `-m' in Finger. - -`initial' - `-i' in `expand'. - -`initial-tab' - `-T' in `diff'. - -`inode' - `-i' in `ls'. - -`interactive' - `-i' in `cp', `ln', `mv', `rm'; `-e' in `m4'; `-p' in `xargs'; - `-w' in `tar'. - -`intermix-type' - `-p' in `shar'. - -`jobs' - `-j' in Make. - -`just-print' - `-n' in Make. - -`keep-going' - `-k' in Make. - -`keep-files' - `-k' in `csplit'. - -`kilobytes' - `-k' in `du' and `ls'. - -`level-for-gzip' - `-g' in `shar'. - -`line-bytes' - `-C' in `split'. - -`lines' - Used in `split', `head', and `tail'. - -`link' - `-l' in `cpio'. - -`list' - `-t' in `cpio'; `-l' in `recode'. - -`list' - `-t' in `tar'. - -`literal' - `-N' in `ls'. - -`load-average' - `-l' in Make. - -`login' - Used in `su'. - -`machine' - No listing of which programs already use this; someone should - check to see if any actually do and tell `gnu@prep.ai.mit.edu'. - -`macro-name' - `-M' in `ptx'. - -`mail' - `-m' in `hello' and `uname'. - -`make-directories' - `-d' in `cpio'. - -`makefile' - `-f' in Make. - -`mapped' - Used in GDB. - -`max-args' - `-n' in `xargs'. - -`max-chars' - `-n' in `xargs'. - -`max-lines' - `-l' in `xargs'. - -`max-load' - `-l' in Make. - -`max-procs' - `-P' in `xargs'. - -`mesg' - `-T' in `who'. - -`message' - `-T' in `who'. - -`minimal' - `-d' in `diff'. - -`mixed-uuencode' - `-M' in `shar'. - -`mode' - `-m' in `install', `mkdir', and `mkfifo'. - -`modification-time' - `-m' in `tar'. - -`multi-volume' - `-M' in `tar'. - -`name-prefix' - `-a' in Bison. - -`nesting-limit' - `-L' in `m4'. - -`net-headers' - `-a' in `shar'. - -`new-file' - `-W' in Make. - -`no-builtin-rules' - `-r' in Make. - -`no-character-count' - `-w' in `shar'. - -`no-check-existing' - `-x' in `shar'. - -`no-create' - `-c' in `touch'. - -`no-defines' - `-D' in `etags'. - -`no-dereference' - `-d' in `cp'. - -`no-keep-going' - `-S' in Make. - -`no-lines' - `-l' in Bison. - -`no-piping' - `-P' in `shar'. - -`no-prof' - `-e' in `gprof'. - -`no-sort' - `-p' in `nm'. - -`no-split' - Used in Makeinfo. - -`no-static' - `-a' in `gprof'. - -`no-time' - `-E' in `gprof'. - -`no-timestamp' - `-m' in `shar'. - -`no-validate' - Used in Makeinfo. - -`no-verbose' - `-v' in `shar'. - -`no-warn' - Used in various programs to inhibit warnings. - -`node' - `-n' in `info'. - -`nodename' - `-n' in `uname'. - -`nonmatching' - `-f' in `cpio'. - -`nstuff' - `-n' in `objdump'. - -`null' - `-0' in `xargs'. - -`number' - `-n' in `cat'. - -`number-nonblank' - `-b' in `cat'. - -`numeric-sort' - `-n' in `nm'. - -`numeric-uid-gid' - `-n' in `cpio' and `ls'. - -`nx' - Used in GDB. - -`old-archive' - `-o' in `tar'. - -`old-file' - `-o' in Make. - -`one-file-system' - `-l' in `tar', `cp', and `du'. - -`only-file' - `-o' in `ptx'. - -`only-prof' - `-f' in `gprof'. - -`only-time' - `-F' in `gprof'. - -`output' - In various programs, specify the output file name. - -`output-prefix' - `-o' in `shar'. - -`override' - `-o' in `rm'. - -`overwrite' - `-c' in `unshar'. - -`owner' - `-o' in `install'. - -`paginate' - `-l' in `diff'. - -`paragraph-indent' - Used in Makeinfo. - -`parents' - `-p' in `mkdir' and `rmdir'. - -`pass-all' - `-p' in `ul'. - -`pass-through' - `-p' in `cpio'. - -`port' - `-P' in `finger'. - -`portability' - `-c' in `cpio' and `tar'. - -`prefix-builtins' - `-P' in `m4'. - -`prefix' - `-f' in `csplit'. - -`preserve' - Used in `tar' and `cp'. - -`preserve-environment' - `-p' in `su'. - -`preserve-modification-time' - `-m' in `cpio'. - -`preserve-order' - `-s' in `tar'. - -`preserve-permissions' - `-p' in `tar'. - -`print' - `-l' in `diff'. - -`print-chars' - `-L' in `cmp'. - -`print-data-base' - `-p' in Make. - -`print-directory' - `-w' in Make. - -`print-file-name' - `-o' in `nm'. - -`print-symdefs' - `-s' in `nm'. - -`query-user' - `-X' in `shar'. - -`question' - `-q' in Make. - -`quiet' - Used in many programs to inhibit the usual output. *Note:* every - program accepting `--quiet' should accept `--silent' as a synonym. - -`quote-name' - `-Q' in `ls'. - -`rcs' - `-n' in `diff'. - -`read-full-blocks' - `-B' in `tar'. - -`readnow' - Used in GDB. - -`recon' - `-n' in Make. - -`record-number' - `-R' in `tar'. - -`recursive' - Used in `chgrp', `chown', `cp', `ls', `diff', and `rm'. - -`reference-limit' - Used in Makeinfo. - -`references' - `-r' in `ptx'. - -`regex' - `-r' in `tac'. - -`release' - `-r' in `uname'. - -`relocation' - `-r' in `objdump'. - -`rename' - `-r' in `cpio'. - -`replace' - `-i' in `xargs'. - -`report-identical-files' - `-s' in `diff'. - -`reset-access-time' - `-a' in `cpio'. - -`reverse' - `-r' in `ls' and `nm'. - -`reversed-ed' - `-f' in `diff'. - -`right-side-defs' - `-R' in `ptx'. - -`same-order' - `-s' in `tar'. - -`same-permissions' - `-p' in `tar'. - -`save' - `-g' in `stty'. - -`se' - Used in GDB. - -`sentence-regexp' - `-S' in `ptx'. - -`separate-dirs' - `-S' in `du'. - -`separator' - `-s' in `tac'. - -`sequence' - Used by `recode' to chose files or pipes for sequencing passes. - -`shell' - `-s' in `su'. - -`show-all' - `-A' in `cat'. - -`show-c-function' - `-p' in `diff'. - -`show-ends' - `-E' in `cat'. - -`show-function-line' - `-F' in `diff'. - -`show-tabs' - `-T' in `cat'. - -`silent' - Used in many programs to inhibit the usual output. *Note:* every - program accepting `--silent' should accept `--quiet' as a synonym. - -`size' - `-s' in `ls'. - -`sort' - Used in `ls'. - -`sparse' - `-S' in `tar'. - -`speed-large-files' - `-H' in `diff'. - -`split-at' - `-E' in `unshar'. - -`split-size-limit' - `-L' in `shar'. - -`squeeze-blank' - `-s' in `cat'. - -`starting-file' - Used in `tar' and `diff' to specify which file within a directory - to start processing with. - -`stdin-file-list' - `-S' in `shar'. - -`stop' - `-S' in Make. - -`strict' - `-s' in `recode'. - -`strip' - `-s' in `install'. - -`strip-all' - `-s' in `strip'. - -`strip-debug' - `-S' in `strip'. - -`submitter' - `-s' in `shar'. - -`suffix' - `-S' in `cp', `ln', `mv'. - -`suffix-format' - `-b' in `csplit'. - -`sum' - `-s' in `gprof'. - -`summarize' - `-s' in `du'. - -`symbolic' - `-s' in `ln'. - -`symbols' - Used in GDB and `objdump'. - -`synclines' - `-s' in `m4'. - -`sysname' - `-s' in `uname'. - -`tabs' - `-t' in `expand' and `unexpand'. - -`tabsize' - `-T' in `ls'. - -`terminal' - `-T' in `tput' and `ul'. - -`text' - `-a' in `diff'. - -`text-files' - `-T' in `shar'. - -`time' - Used in `ls' and `touch'. - -`to-stdout' - `-O' in `tar'. - -`total' - `-c' in `du'. - -`touch' - `-t' in Make, `ranlib', and `recode'. - -`trace' - `-t' in `m4'. - -`traditional' - `-t' in `hello'; `-G' in `m4' and `ptx'. - -`tty' - Used in GDB. - -`typedefs' - `-t' in `etags'. - -`typedefs-and-c++' - `-T' in `etags'. - -`typeset-mode' - `-t' in `ptx'. - -`uncompress' - `-z' in `tar'. - -`unconditional' - `-u' in `cpio'. - -`undefine' - `-U' in `m4'. - -`undefined-only' - `-u' in `nm'. - -`update' - `-u' in `cp', `etags', `mv', `tar'. - -`uuencode' - `-B' in `shar'. - -`vanilla-operation' - `-V' in `shar'. - -`verbose' - Print more information about progress. Many programs support this. - -`verify' - `-W' in `tar'. - -`version' - Print the version number. - -`version-control' - `-V' in `cp', `ln', `mv'. - -`vgrind' - `-v' in `etags'. - -`volume' - `-V' in `tar'. - -`what-if' - `-W' in Make. - -`whole-size-limit' - `-l' in `shar'. - -`width' - `-w' in `ls' and `ptx'. - -`word-regexp' - `-W' in `ptx'. - -`writable' - `-T' in `who'. - -`zeros' - `-z' in `gprof'. - - -File: standards.info, Node: Documentation, Next: Releases, Prev: User Interfaces, Up: Top - -Documenting Programs -******************** - - Please use Texinfo for documenting GNU programs. See the Texinfo -manual, either the hardcopy or the version in the GNU Emacs Info -subsystem (`C-h i'). See existing GNU Texinfo files (e.g., those under -the `man/' directory in the GNU Emacs distribution) for examples. - - The title page of the manual should state the version of the program -which the manual applies to. The Top node of the manual should also -contain this information. If the manual is changing more frequently -than or independent of the program, also state a version number for the -manual in both of these places. - - The manual should document all command-line arguments and all -commands. It should give examples of their use. But don't organize -the manual as a list of features. Instead, organize it by the concepts -a user will have before reaching that point in the manual. Address the -goals that a user will have in mind, and explain how to accomplish -them. Don't use Unix man pages as a model for how to write GNU -documentation; they are a bad example to follow. - - The manual should have a node named `PROGRAM Invocation' or -`Invoking PROGRAM', where PROGRAM stands for the name of the program -being described, as you would type it in the shell to run the program. -This node (together with its subnodes, if any) should describe the -program's command line arguments and how to run it (the sort of -information people would look in a man page for). Start with an -`@example' containing a template for all the options and arguments that -the program uses. - - Alternatively, put a menu item in some menu whose item name fits one -of the above patterns. This identifies the node which that item points -to as the node for this purpose, regardless of the node's actual name. - - There will be automatic features for specifying a program name and -quickly reading just this part of its manual. - - If one manual describes several programs, it should have such a node -for each program described. - - In addition to its manual, the package should have a file named -`NEWS' which contains a list of user-visible changes worth mentioning. -In each new release, add items to the front of the file and identify -the version they pertain to. Don't discard old items; leave them in -the file after the newer items. This way, a user upgrading from any -previous version can see what is new. - - If the `NEWS' file gets very long, move some of the older items into -a file named `ONEWS' and put a note at the end referring the user to -that file. - - Please do not use the term "pathname" that is used in Unix -documentation; use "file name" (two words) instead. We use the term -"path" only for search paths, which are lists of file names. - - It is ok to supply a man page for the program as well as a Texinfo -manual if you wish to. But keep in mind that supporting a man page -requires continual effort, each time the program is changed. Any time -you spend on the man page is time taken away from more useful things you -could contribute. - - Thus, even if a user volunteers to donate a man page, you may find -this gift costly to accept. Unless you have time on your hands, it may -be better to refuse the man page unless the same volunteer agrees to -take full responsibility for maintaining it--so that you can wash your -hands of it entirely. If the volunteer ceases to do the job, then -don't feel obliged to pick it up yourself; it may be better to withdraw -the man page until another volunteer offers to carry on with it. - - Alternatively, if you expect the discrepancies to be small enough -that the man page remains useful, put a prominent note near the -beginning of the man page explaining that you don't maintain it and -that the Texinfo manual is more authoritative, and describing how to -access the Texinfo documentation. - - -File: standards.info, Node: Releases, Prev: Documentation, Up: Top - -Making Releases -*************** - - Package the distribution of Foo version 69.96 in a gzipped tar file -named `foo-69.96.tar.gz'. It should unpack into a subdirectory named -`foo-69.96'. - - Building and installing the program should never modify any of the -files contained in the distribution. This means that all the files -that form part of the program in any way must be classified into "source -files" and "non-source files". Source files are written by humans and -never changed automatically; non-source files are produced from source -files by programs under the control of the Makefile. - - Naturally, all the source files must be in the distribution. It is -okay to include non-source files in the distribution, provided they are -up-to-date and machine-independent, so that building the distribution -normally will never modify them. We commonly include non-source files -produced by Bison, Lex, TeX, and Makeinfo; this helps avoid unnecessary -dependencies between our distributions, so that users can install -whichever packages they want to install. - - Non-source files that might actually be modified by building and -installing the program should *never* be included in the distribution. -So if you do distribute non-source files, always make sure they are up -to date when you make a new distribution. - - Make sure that the directory into which the distribution unpacks (as -well as any subdirectories) are all world-writable (octal mode 777). -This is so that old versions of `tar' which preserve the ownership and -permissions of the files from the tar archive will be able to extract -all the files even if the user is unprivileged. - - Make sure that all the files in the distribution are world-readable. - - Make sure that no file name in the distribution is more than 14 -characters long. Likewise, no file created by building the program -should have a name longer than 14 characters. The reason for this is -that some systems adhere to a foolish interpretation of the POSIX -standard, and refuse to open a longer name, rather than truncating as -they did in the past. - - Don't include any symbolic links in the distribution itself. If the -tar file contains symbolic links, then people cannot even unpack it on -systems that don't support symbolic links. Also, don't use multiple -names for one file in different directories, because certain file -systems cannot handle this and that prevents unpacking the distribution. - - Try to make sure that all the file names will be unique on MS-DOG. A -name on MS-DOG consists of up to 8 characters, optionally followed by a -period and up to three characters. MS-DOG will truncate extra -characters both before and after the period. Thus, `foobarhacker.c' -and `foobarhacker.o' are not ambiguous; they are truncated to -`foobarha.c' and `foobarha.o', which are distinct. - - Include in your distribution a copy of the `texinfo.tex' you used to -test print any `*.texinfo' files. - - Likewise, if your program uses small GNU software packages like -regex, getopt, obstack, or termcap, include them in the distribution -file. Leaving them out would make the distribution file a little -smaller at the expense of possible inconvenience to a user who doesn't -know what other files to get. - - diff --git a/util/autoconf/standards.texi b/util/autoconf/standards.texi deleted file mode 100644 index e50b367..0000000 --- a/util/autoconf/standards.texi +++ /dev/null @@ -1,2409 +0,0 @@ -\input texinfo @c -*-texinfo-*- -@c %**start of header -@setfilename standards.info -@settitle GNU Coding Standards -@c UPDATE THIS DATE WHENEVER YOU MAKE CHANGES! -@set lastupdate 21 September 1994 -@c %**end of header - -@ifinfo -@format -START-INFO-DIR-ENTRY -* Standards: (standards). GNU coding standards. -END-INFO-DIR-ENTRY -@end format -@end ifinfo - -@setchapternewpage off - -@ifinfo -GNU Coding Standards -Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. - -Permission is granted to make and distribute verbatim copies of -this manual provided the copyright notice and this permission notice -are preserved on all copies. - -@ignore -Permission is granted to process this file through TeX and print the -results, provided the printed document carries copying permission -notice identical to this one except for the removal of this paragraph -(this paragraph not being relevant to the printed manual). -@end ignore - -Permission is granted to copy and distribute modified versions of this -manual under the conditions for verbatim copying, provided that the entire -resulting derived work is distributed under the terms of a permission -notice identical to this one. - -Permission is granted to copy and distribute translations of this manual -into another language, under the above conditions for modified versions, -except that this permission notice may be stated in a translation approved -by the Free Software Foundation. -@end ifinfo - -@titlepage -@title GNU Coding Standards -@author Richard Stallman -@author last updated @value{lastupdate} -@page - -@vskip 0pt plus 1filll -Copyright @copyright{} 1992, 1993 Free Software Foundation, Inc. - -Permission is granted to make and distribute verbatim copies of -this manual provided the copyright notice and this permission notice -are preserved on all copies. - -Permission is granted to copy and distribute modified versions of this -manual under the conditions for verbatim copying, provided that the entire -resulting derived work is distributed under the terms of a permission -notice identical to this one. - -Permission is granted to copy and distribute translations of this manual -into another language, under the above conditions for modified versions, -except that this permission notice may be stated in a translation approved -by the Free Software Foundation. -@end titlepage - -@ifinfo -@node Top, Preface, (dir), (dir) -@top Version - -Last updated @value{lastupdate}. -@end ifinfo - -@menu -* Preface:: About the GNU Coding Standards -* Reading Non-Free Code:: Referring to Proprietary Programs -* Contributions:: Accepting Contributions -* Change Logs:: Recording Changes -* Compatibility:: Compatibility with Other Implementations -* Makefile Conventions:: Makefile Conventions -* Configuration:: How Configuration Should Work -* Source Language:: Using Languages Other Than C -* Formatting:: Formatting Your Source Code -* Comments:: Commenting Your Work -* Syntactic Conventions:: Clean Use of C Constructs -* Names:: Naming Variables and Functions -* Using Extensions:: Using Non-standard Features -* System Functions:: Portability and ``standard'' library functions -* Semantics:: Program Behavior for All Programs -* Errors:: Formatting Error Messages -* Libraries:: Library Behavior -* Portability:: Portability As It Applies to GNU -* User Interfaces:: Standards for Command Line Interfaces -* Documentation:: Documenting Programs -* Releases:: Making Releases -@end menu - -@node Preface -@chapter About the GNU Coding Standards - -The GNU Coding Standards were written by Richard Stallman and other GNU -Project volunteers. Their purpose is to make the GNU system clean, -consistent, and easy to install. This document can also be read as a -guide to write portable, robust and reliable programs. It focuses on -programs written in C, but many of the rules and principles are useful -even if you write in another programming language. The rules often -state reasons for writing in a certain way. - -Corrections or suggestions regarding this document should be sent to -@code{gnu@@prep.ai.mit.edu}. If you make a suggestion, please include a -suggested new wording for it; our time is limited. We prefer a context -diff to the @file{standards.texi} or @file{make-stds.texi} files, but if -you don't have those files, please mail your suggestion anyway. - -This release of the GNU Coding Standards was last updated -@value{lastupdate}. - -@node Reading Non-Free Code -@chapter Referring to Proprietary Programs - -Don't in any circumstances refer to Unix source code for or during -your work on GNU! (Or to any other proprietary programs.) - -If you have a vague recollection of the internals of a Unix program, -this does not absolutely mean you can't write an imitation of it, but -do try to organize the imitation internally along different lines, -because this is likely to make the details of the Unix version -irrelevant and dissimilar to your results. - -For example, Unix utilities were generally optimized to minimize -memory use; if you go for speed instead, your program will be very -different. You could keep the entire input file in core and scan it -there instead of using stdio. Use a smarter algorithm discovered more -recently than the Unix program. Eliminate use of temporary files. Do -it in one pass instead of two (we did this in the assembler). - -Or, on the contrary, emphasize simplicity instead of speed. For some -applications, the speed of today's computers makes simpler algorithms -adequate. - -Or go for generality. For example, Unix programs often have static -tables or fixed-size strings, which make for arbitrary limits; use -dynamic allocation instead. Make sure your program handles NULs and -other funny characters in the input files. Add a programming language -for extensibility and write part of the program in that language. - -Or turn some parts of the program into independently usable libraries. -Or use a simple garbage collector instead of tracking precisely when -to free memory, or use a new GNU facility such as obstacks. - - -@node Contributions -@chapter Accepting Contributions - -If someone else sends you a piece of code to add to the program you are -working on, we need legal papers to use it---the same sort of legal -papers we will need to get from you. @emph{Each} significant -contributor to a program must sign some sort of legal papers in order -for us to have clear title to the program. The main author alone is not -enough. - -So, before adding in any contributions from other people, tell us -so we can arrange to get the papers. Then wait until we tell you -that we have received the signed papers, before you actually use the -contribution. - -This applies both before you release the program and afterward. If -you receive diffs to fix a bug, and they make significant change, we -need legal papers for it. - -You don't need papers for changes of a few lines here or there, since -they are not significant for copyright purposes. Also, you don't need -papers if all you get from the suggestion is some ideas, not actual code -which you use. For example, if you write a different solution to the -problem, you don't need to get papers. - -I know this is frustrating; it's frustrating for us as well. But if -you don't wait, you are going out on a limb---for example, what if the -contributor's employer won't sign a disclaimer? You might have to take -that code out again! - -The very worst thing is if you forget to tell us about the other -contributor. We could be very embarrassed in court some day as a -result. - -@node Change Logs -@chapter Change Logs - -Keep a change log for each directory, describing the changes made to -source files in that directory. The purpose of this is so that people -investigating bugs in the future will know about the changes that -might have introduced the bug. Often a new bug can be found by -looking at what was recently changed. More importantly, change logs -can help eliminate conceptual inconsistencies between different parts -of a program; they can give you a history of how the conflicting -concepts arose. - -Use the Emacs command @kbd{M-x add-change} to start a new entry in the -change log. An entry should have an asterisk, the name of the changed -file, and then in parentheses the name of the changed functions, -variables or whatever, followed by a colon. Then describe the changes -you made to that function or variable. - -Separate unrelated entries with blank lines. When two entries -represent parts of the same change, so that they work together, then -don't put blank lines between them. Then you can omit the file name -and the asterisk when successive entries are in the same file. - -Here are some examples: - -@example -* register.el (insert-register): Return nil. -(jump-to-register): Likewise. - -* sort.el (sort-subr): Return nil. - -* tex-mode.el (tex-bibtex-file, tex-file, tex-region): -Restart the tex shell if process is gone or stopped. -(tex-shell-running): New function. - -* expr.c (store_one_arg): Round size up for move_block_to_reg. -(expand_call): Round up when emitting USE insns. -* stmt.c (assign_parms): Round size up for move_block_from_reg. -@end example - -It's important to name the changed function or variable in full. Don't -abbreviate them; don't combine them. Subsequent maintainers will often -search for a function name to find all the change log entries that -pertain to it; if you abbreviate the name, they won't find it when they -search. For example, some people are tempted to abbreviate groups of -function names by writing @samp{* register.el -(@{insert,jump-to@}-register)}; this is not a good idea, since searching -for @code{jump-to-register} or @code{insert-register} would not find the -entry. - -There's no need to describe the full purpose of the changes or how they -work together. It is better to put such explanations in comments in the -code. That's why just ``New function'' is enough; there is a comment -with the function in the source to explain what it does. - -However, sometimes it is useful to write one line to describe the -overall purpose of a large batch of changes. - -You can think of the change log as a conceptual ``undo list'' which -explains how earlier versions were different from the current version. -People can see the current version; they don't need the change log -to tell them what is in it. What they want from a change log is a -clear explanation of how the earlier version differed. - -When you change the calling sequence of a function in a simple -fashion, and you change all the callers of the function, there is no -need to make individual entries for all the callers. Just write in -the entry for the function being called, ``All callers changed.'' - -When you change just comments or doc strings, it is enough to write an -entry for the file, without mentioning the functions. Write just, -``Doc fix.'' There's no need to keep a change log for documentation -files. This is because documentation is not susceptible to bugs that -are hard to fix. Documentation does not consist of parts that must -interact in a precisely engineered fashion; to correct an error, you -need not know the history of the erroneous passage. - - -@node Compatibility -@chapter Compatibility with Other Implementations - -With certain exceptions, utility programs and libraries for GNU should -be upward compatible with those in Berkeley Unix, and upward compatible -with @sc{ANSI} C if @sc{ANSI} C specifies their behavior, and upward -compatible with @sc{POSIX} if @sc{POSIX} specifies their behavior. - -When these standards conflict, it is useful to offer compatibility -modes for each of them. - -@sc{ANSI} C and @sc{POSIX} prohibit many kinds of extensions. Feel -free to make the extensions anyway, and include a @samp{--ansi} or -@samp{--compatible} option to turn them off. However, if the extension -has a significant chance of breaking any real programs or scripts, -then it is not really upward compatible. Try to redesign its -interface. - -Many GNU programs suppress extensions that conflict with POSIX if the -environment variable @code{POSIXLY_CORRECT} is defined (even if it is -defined with a null value). Please make your program recognize this -variable if appropriate. - -When a feature is used only by users (not by programs or command -files), and it is done poorly in Unix, feel free to replace it -completely with something totally different and better. (For example, -vi is replaced with Emacs.) But it is nice to offer a compatible -feature as well. (There is a free vi clone, so we offer it.) - -Additional useful features not in Berkeley Unix are welcome. -Additional programs with no counterpart in Unix may be useful, -but our first priority is usually to duplicate what Unix already -has. - -@comment The makefile standards are in a separate file that is also -@comment included by make.texinfo. Done by roland@gnu.ai.mit.edu on 1/6/93. -@include make-stds.texi - -@node Configuration -@chapter How Configuration Should Work - -Each GNU distribution should come with a shell script named -@code{configure}. This script is given arguments which describe the -kind of machine and system you want to compile the program for. - -The @code{configure} script must record the configuration options so -that they affect compilation. - -One way to do this is to make a link from a standard name such as -@file{config.h} to the proper configuration file for the chosen system. -If you use this technique, the distribution should @emph{not} contain a -file named @file{config.h}. This is so that people won't be able to -build the program without configuring it first. - -Another thing that @code{configure} can do is to edit the Makefile. If -you do this, the distribution should @emph{not} contain a file named -@file{Makefile}. Instead, include a file @file{Makefile.in} which -contains the input used for editing. Once again, this is so that people -won't be able to build the program without configuring it first. - -If @code{configure} does write the @file{Makefile}, then @file{Makefile} -should have a target named @file{Makefile} which causes @code{configure} -to be rerun, setting up the same configuration that was set up last -time. The files that @code{configure} reads should be listed as -dependencies of @file{Makefile}. - -All the files which are output from the @code{configure} script should -have comments at the beginning explaining that they were generated -automatically using @code{configure}. This is so that users won't think -of trying to edit them by hand. - -The @code{configure} script should write a file named @file{config.status} -which describes which configuration options were specified when the -program was last configured. This file should be a shell script which, -if run, will recreate the same configuration. - -The @code{configure} script should accept an option of the form -@samp{--srcdir=@var{dirname}} to specify the directory where sources are found -(if it is not the current directory). This makes it possible to build -the program in a separate directory, so that the actual source directory -is not modified. - -If the user does not specify @samp{--srcdir}, then @code{configure} should -check both @file{.} and @file{..} to see if it can find the sources. If -it finds the sources in one of these places, it should use them from -there. Otherwise, it should report that it cannot find the sources, and -should exit with nonzero status. - -Usually the easy way to support @samp{--srcdir} is by editing a -definition of @code{VPATH} into the Makefile. Some rules may need to -refer explicitly to the specified source directory. To make this -possible, @code{configure} can add to the Makefile a variable named -@code{srcdir} whose value is precisely the specified directory. - -The @code{configure} script should also take an argument which specifies the -type of system to build the program for. This argument should look like -this: - -@example -@var{cpu}-@var{company}-@var{system} -@end example - -For example, a Sun 3 might be @samp{m68k-sun-sunos4.1}. - -The @code{configure} script needs to be able to decode all plausible -alternatives for how to describe a machine. Thus, @samp{sun3-sunos4.1} -would be a valid alias. So would @samp{sun3-bsd4.2}, since SunOS is -basically @sc{BSD} and no other @sc{BSD} system is used on a Sun. For many -programs, @samp{vax-dec-ultrix} would be an alias for -@samp{vax-dec-bsd}, simply because the differences between Ultrix and -@sc{BSD} are rarely noticeable, but a few programs might need to distinguish -them. - -There is a shell script called @file{config.sub} that you can use -as a subroutine to validate system types and canonicalize aliases. - -Other options are permitted to specify in more detail the software -or hardware present on the machine, and include or exclude optional -parts of the package: - -@table @samp -@item --enable-@var{feature}@r{[}=@var{parameter}@r{]} -Configure the package to build and install an optional user-level -facility called @var{feature}. This allows users to choose which -optional features to include. Giving an optional @var{parameter} of -@samp{no} should omit @var{feature}, if it is built by default. - -No @samp{--enable} option should @strong{ever} cause one feature to -replace another. No @samp{--enable} option should ever substitute one -useful behavior for another useful behavior. The only proper use for -@samp{--enable} is for questions of whether to build part of the program -or exclude it. - -@item --with-@var{package} -@c @r{[}=@var{parameter}@r{]} -The package @var{package} will be installed, so configure this package -to work with @var{package}. - -@c Giving an optional @var{parameter} of -@c @samp{no} should omit @var{package}, if it is used by default. - -Possible values of @var{package} include @samp{x}, @samp{x-toolkit}, -@samp{gnu-as} (or @samp{gas}), @samp{gnu-ld}, @samp{gnu-libc}, and -@samp{gdb}. - -Do not use a @samp{--with} option to specify the file name to use to -find certain files. That is outside the scope of what @samp{--with} -options are for. - -@item --nfp -The target machine has no floating point processor. - -@item --gas -The target machine assembler is GAS, the GNU assembler. -This is obsolete; users should use @samp{--with-gnu-as} instead. - -@item --x -The target machine has the X Window System installed. -This is obsolete; users should use @samp{--with-x} instead. -@end table - -All @code{configure} scripts should accept all of these ``detail'' -options, whether or not they make any difference to the particular -package at hand. In particular, they should accept any option that -starts with @samp{--with-} or @samp{--enable-}. This is so users will -be able to configure an entire GNU source tree at once with a single set -of options. - -You will note that the categories @samp{--with-} and @samp{--enable-} -are narrow: they @strong{do not} provide a place for any sort of option -you might think of. That is deliberate. We want to limit the possible -configuration options in GNU software. We do not want GNU programs to -have idiosyncratic configuration options. - -Packages that perform part of compilation may support cross-compilation. -In such a case, the host and target machines for the program may be -different. The @code{configure} script should normally treat the -specified type of system as both the host and the target, thus producing -a program which works for the same type of machine that it runs on. - -The way to build a cross-compiler, cross-assembler, or what have you, is -to specify the option @samp{--host=@var{hosttype}} when running -@code{configure}. This specifies the host system without changing the -type of target system. The syntax for @var{hosttype} is the same as -described above. - -Bootstrapping a cross-compiler requires compiling it on a machine other -than the host it will run on. Compilation packages accept a -configuration option @samp{--build=@var{hosttype}} for specifying the -configuration on which you will compile them, in case that is different -from the host. - -Programs for which cross-operation is not meaningful need not accept the -@samp{--host} option, because configuring an entire operating system for -cross-operation is not a meaningful thing. - -Some programs have ways of configuring themselves automatically. If -your program is set up to do this, your @code{configure} script can simply -ignore most of its arguments. - - -@node Source Language -@chapter Using Languages Other Than C - -Using a language other than C is like using a non-standard feature: it -will cause trouble for users. Even if GCC supports the other language, -users may find it inconvenient to have to install the compiler for that -other language in order to build your program. So please write in C. - -There are three exceptions for this rule: - -@itemize @bullet -@item -It is okay to use a special language if the same program contains an -interpreter for that language. - -Thus, it is not a problem that GNU Emacs contains code written in Emacs -Lisp, because it comes with a Lisp interpreter. - -@item -It is okay to use another language in a tool specifically intended for -use with that language. - -This is okay because the only people who want to build the tool will be -those who have installed the other language anyway. - -@item -If an application is not of extremely widespread interest, then perhaps -it's not important if the application is inconvenient to install. -@end itemize - -@node Formatting -@chapter Formatting Your Source Code - -It is important to put the open-brace that starts the body of a C -function in column zero, and avoid putting any other open-brace or -open-parenthesis or open-bracket in column zero. Several tools look -for open-braces in column zero to find the beginnings of C functions. -These tools will not work on code not formatted that way. - -It is also important for function definitions to start the name of the -function in column zero. This helps people to search for function -definitions, and may also help certain tools recognize them. Thus, -the proper format is this: - -@example -static char * -concat (s1, s2) /* Name starts in column zero here */ - char *s1, *s2; -@{ /* Open brace in column zero here */ - @dots{} -@} -@end example - -@noindent -or, if you want to use @sc{ANSI} C, format the definition like this: - -@example -static char * -concat (char *s1, char *s2) -@{ - @dots{} -@} -@end example - -In @sc{ANSI} C, if the arguments don't fit nicely on one line, -split it like this: - -@example -int -lots_of_args (int an_integer, long a_long, short a_short, - double a_double, float a_float) -@dots{} -@end example - -For the body of the function, we prefer code formatted like this: - -@example -if (x < foo (y, z)) - haha = bar[4] + 5; -else - @{ - while (z) - @{ - haha += foo (z, z); - z--; - @} - return ++x + bar (); - @} -@end example - -We find it easier to read a program when it has spaces before the -open-parentheses and after the commas. Especially after the commas. - -When you split an expression into multiple lines, split it -before an operator, not after one. Here is the right way: - -@example -if (foo_this_is_long && bar > win (x, y, z) - && remaining_condition) -@end example - -Try to avoid having two operators of different precedence at the same -level of indentation. For example, don't write this: - -@example -mode = (inmode[j] == VOIDmode - || GET_MODE_SIZE (outmode[j]) > GET_MODE_SIZE (inmode[j]) - ? outmode[j] : inmode[j]); -@end example - -Instead, use extra parentheses so that the indentation shows the nesting: - -@example -mode = ((inmode[j] == VOIDmode - || (GET_MODE_SIZE (outmode[j]) > GET_MODE_SIZE (inmode[j]))) - ? outmode[j] : inmode[j]); -@end example - -Insert extra parentheses so that Emacs will indent the code properly. -For example, the following indentation looks nice if you do it by hand, -but Emacs would mess it up: - -@example -v = rup->ru_utime.tv_sec*1000 + rup->ru_utime.tv_usec/1000 - + rup->ru_stime.tv_sec*1000 + rup->ru_stime.tv_usec/1000; -@end example - -But adding a set of parentheses solves the problem: - -@example -v = (rup->ru_utime.tv_sec*1000 + rup->ru_utime.tv_usec/1000 - + rup->ru_stime.tv_sec*1000 + rup->ru_stime.tv_usec/1000); -@end example - -Format do-while statements like this: - -@example -do - @{ - a = foo (a); - @} -while (a > 0); -@end example - -Please use formfeed characters (control-L) to divide the program into -pages at logical places (but not within a function). It does not matter -just how long the pages are, since they do not have to fit on a printed -page. The formfeeds should appear alone on lines by themselves. - - -@node Comments -@chapter Commenting Your Work - -Every program should start with a comment saying briefly what it is for. -Example: @samp{fmt - filter for simple filling of text}. - -Please put a comment on each function saying what the function does, -what sorts of arguments it gets, and what the possible values of -arguments mean and are used for. It is not necessary to duplicate in -words the meaning of the C argument declarations, if a C type is being -used in its customary fashion. If there is anything nonstandard about -its use (such as an argument of type @code{char *} which is really the -address of the second character of a string, not the first), or any -possible values that would not work the way one would expect (such as, -that strings containing newlines are not guaranteed to work), be sure -to say so. - -Also explain the significance of the return value, if there is one. - -Please put two spaces after the end of a sentence in your comments, so -that the Emacs sentence commands will work. Also, please write -complete sentences and capitalize the first word. If a lower-case -identifer comes at the beginning of a sentence, don't capitalize it! -Changing the spelling makes it a different identifier. If you don't -like starting a sentence with a lower case letter, write the sentence -differently (e.g., ``The identifier lower-case is @dots{}''). - -The comment on a function is much clearer if you use the argument -names to speak about the argument values. The variable name itself -should be lower case, but write it in upper case when you are speaking -about the value rather than the variable itself. Thus, ``the inode -number NODE_NUM'' rather than ``an inode''. - -There is usually no purpose in restating the name of the function in -the comment before it, because the reader can see that for himself. -There might be an exception when the comment is so long that the function -itself would be off the bottom of the screen. - -There should be a comment on each static variable as well, like this: - -@example -/* Nonzero means truncate lines in the display; - zero means continue them. */ -int truncate_lines; -@end example - -Every @samp{#endif} should have a comment, except in the case of short -conditionals (just a few lines) that are not nested. The comment should -state the condition of the conditional that is ending, @emph{including -its sense}. @samp{#else} should have a comment describing the condition -@emph{and sense} of the code that follows. For example: - -@example -#ifdef foo - @dots{} -#else /* not foo */ - @dots{} -#endif /* not foo */ -@end example - -@noindent -but, by contrast, write the comments this way for a @samp{#ifndef}: - -@example -#ifndef foo - @dots{} -#else /* foo */ - @dots{} -#endif /* foo */ -@end example - - -@node Syntactic Conventions -@chapter Clean Use of C Constructs - -Please explicitly declare all arguments to functions. -Don't omit them just because they are @code{int}s. - -Declarations of external functions and functions to appear later in the -source file should all go in one place near the beginning of the file -(somewhere before the first function definition in the file), or else -should go in a header file. Don't put @code{extern} declarations inside -functions. - -It used to be common practice to use the same local variables (with -names like @code{tem}) over and over for different values within one -function. Instead of doing this, it is better declare a separate local -variable for each distinct purpose, and give it a name which is -meaningful. This not only makes programs easier to understand, it also -facilitates optimization by good compilers. You can also move the -declaration of each local variable into the smallest scope that includes -all its uses. This makes the program even cleaner. - -Don't use local variables or parameters that shadow global identifiers. - -Don't declare multiple variables in one declaration that spans lines. -Start a new declaration on each line, instead. For example, instead -of this: - -@example -int foo, - bar; -@end example - -@noindent -write either this: - -@example -int foo, bar; -@end example - -@noindent -or this: - -@example -int foo; -int bar; -@end example - -@noindent -(If they are global variables, each should have a comment preceding it -anyway.) - -When you have an @code{if}-@code{else} statement nested in another -@code{if} statement, always put braces around the @code{if}-@code{else}. -Thus, never write like this: - -@example -if (foo) - if (bar) - win (); - else - lose (); -@end example - -@noindent -always like this: - -@example -if (foo) - @{ - if (bar) - win (); - else - lose (); - @} -@end example - -If you have an @code{if} statement nested inside of an @code{else} -statement, either write @code{else if} on one line, like this, - -@example -if (foo) - @dots{} -else if (bar) - @dots{} -@end example - -@noindent -with its @code{then}-part indented like the preceding @code{then}-part, -or write the nested @code{if} within braces like this: - -@example -if (foo) - @dots{} -else - @{ - if (bar) - @dots{} - @} -@end example - -Don't declare both a structure tag and variables or typedefs in the -same declaration. Instead, declare the structure tag separately -and then use it to declare the variables or typedefs. - -Try to avoid assignments inside @code{if}-conditions. For example, -don't write this: - -@example -if ((foo = (char *) malloc (sizeof *foo)) == 0) - fatal ("virtual memory exhausted"); -@end example - -@noindent -instead, write this: - -@example -foo = (char *) malloc (sizeof *foo); -if (foo == 0) - fatal ("virtual memory exhausted"); -@end example - -Don't make the program ugly to placate @code{lint}. Please don't insert any -casts to @code{void}. Zero without a cast is perfectly fine as a null -pointer constant. - -@node Names -@chapter Naming Variables and Functions - -Please use underscores to separate words in a name, so that the Emacs -word commands can be useful within them. Stick to lower case; reserve -upper case for macros and @code{enum} constants, and for name-prefixes -that follow a uniform convention. - -For example, you should use names like @code{ignore_space_change_flag}; -don't use names like @code{iCantReadThis}. - -Variables that indicate whether command-line options have been -specified should be named after the meaning of the option, not after -the option-letter. A comment should state both the exact meaning of -the option and its letter. For example, - -@example -/* Ignore changes in horizontal whitespace (-b). */ -int ignore_space_change_flag; -@end example - -When you want to define names with constant integer values, use -@code{enum} rather than @samp{#define}. GDB knows about enumeration -constants. - -Use file names of 14 characters or less, to avoid creating gratuitous -problems on System V. You can use the program @code{doschk} to test for -this. @code{doschk} also tests for potential name conflicts if the -files were loaded onto an MS-DOS file system---something you may or may -not care about. - - -@node Using Extensions -@chapter Using Non-standard Features - -Many GNU facilities that already exist support a number of convenient -extensions over the comparable Unix facilities. Whether to use these -extensions in implementing your program is a difficult question. - -On the one hand, using the extensions can make a cleaner program. -On the other hand, people will not be able to build the program -unless the other GNU tools are available. This might cause the -program to work on fewer kinds of machines. - -With some extensions, it might be easy to provide both alternatives. -For example, you can define functions with a ``keyword'' @code{INLINE} -and define that as a macro to expand into either @code{inline} or -nothing, depending on the compiler. - -In general, perhaps it is best not to use the extensions if you can -straightforwardly do without them, but to use the extensions if they -are a big improvement. - -An exception to this rule are the large, established programs (such as -Emacs) which run on a great variety of systems. Such programs would -be broken by use of GNU extensions. - -Another exception is for programs that are used as part of -compilation: anything that must be compiled with other compilers in -order to bootstrap the GNU compilation facilities. If these require -the GNU compiler, then no one can compile them without having them -installed already. That would be no good. - -Since most computer systems do not yet implement @sc{ANSI} C, using the -@sc{ANSI} C features is effectively using a GNU extension, so the -same considerations apply. (Except for @sc{ANSI} features that we -discourage, such as trigraphs---don't ever use them.) - - -@node System Functions -@chapter Calling System Functions - -C implementations differ substantially. ANSI C reduces but does not -eliminate the incompatibilities; meanwhile, many users wish to compile -GNU software with pre-ANSI compilers. This chapter gives -recommendations for how to use the more or less standard C library -functions to avoid unnecessary loss of portability. - -@itemize @bullet -@item -Don't use the value of @code{sprintf}. It returns the number of -characters written on some systems, but not on all systems. - -@item -Don't declare system functions explicitly. - -Almost any declaration for a system function is wrong on some system. -To minimize conflicts, leave it to the system header files to declare -system functions. If the headers don't declare a function, let it -remain undeclared. - -While it may seem unclean to use a function without declaring it, in -practice this works fine for most system library functions on the -systems where this really happens. The problem is only theoretical. By -contrast, actual declarations have frequently caused actual conflicts. - -@item -If you must declare a system function, don't specify the argument types. -Use an old-style declaration, not an ANSI prototype. The more you -specify about the function, the more likely a conflict. - -@item -In particular, don't unconditionally declare @code{malloc} or -@code{realloc}. - -Most GNU programs use those functions just once, in functions -conventionally named @code{xmalloc} and @code{xrealloc}. These -functions call @code{malloc} and @code{realloc}, respectively, and -check the results. - -Because @code{xmalloc} and @code{xrealloc} are defined in your program, -you can declare them in other files without any risk of type conflict. - -On most systems, @code{int} is the same length as a pointer; thus, the -calls to @code{malloc} and @code{realloc} work fine. For the few -exceptional systems (mostly 64-bit machines), you can use -@strong{conditionalized} declarations of @code{malloc} and -@code{realloc}---or put these declarations in configuration files -specific to those systems. - -@item -The string functions require special treatment. Some Unix systems have -a header file @file{string.h}; other have @file{strings.h}. Neither -file name is portable. There are two things you can do: use Autoconf to -figure out which file to include, or don't include either file. - -@item -If you don't include either strings file, you can't get declarations for -the string functions from the header file in the usual way. - -That causes less of a problem than you might think. The newer ANSI -string functions are off-limits anyway because many systems still don't -support them. The string functions you can use are these: - -@example -strcpy strncpy strcat strncat -strlen strcmp strncmp -strchr strrchr -@end example - -The copy and concatenate functions work fine without a declaration as -long as you don't use their values. Using their values without a -declaration fails on systems where the width of a pointer differs from -the width of @code{int}, and perhaps in other cases. It is trivial to -avoid using their values, so do that. - -The compare functions and @code{strlen} work fine without a declaration -on most systems, possibly all the ones that GNU software runs on. -You may find it necessary to declare them @strong{conditionally} on a -few systems. - -The search functions must be declared to return @code{char *}. Luckily, -there is no variation in the data type they return. But there is -variation in their names. Some systems give these functions the names -@code{index} and @code{rindex}; other systems use the names -@code{strchr} and @code{strrchr}. Some systems support both pairs of -names, but neither pair works on all systems. - -You should pick a single pair of names and use it throughout your -program. (Nowadays, it is better to choose @code{strchr} and -@code{strrchr}.) Declare both of those names as functions returning -@code{char *}. On systems which don't support those names, define them -as macros in terms of the other pair. For example, here is what to put -at the beginning of your file (or in a header) if you want to use the -names @code{strchr} and @code{strrchr} throughout: - -@example -#ifndef HAVE_STRCHR -#define strchr index -#endif -#ifndef HAVE_STRRCHR -#define strrchr rindex -#endif - -char *strchr (); -char *strrchr (); -@end example -@end itemize - -Here we assume that @code{HAVE_STRCHR} and @code{HAVE_STRRCHR} are -macros defined in systems where the corresponding functions exist. -One way to get them properly defined is to use Autoconf. - -@node Semantics -@chapter Program Behavior for All Programs - -Avoid arbitrary limits on the length or number of @emph{any} data -structure, including filenames, lines, files, and symbols, by allocating -all data structures dynamically. In most Unix utilities, ``long lines -are silently truncated''. This is not acceptable in a GNU utility. - -Utilities reading files should not drop NUL characters, or any other -nonprinting characters @emph{including those with codes above 0177}. The -only sensible exceptions would be utilities specifically intended for -interface to certain types of printers that can't handle those characters. - -Check every system call for an error return, unless you know you wish to -ignore errors. Include the system error text (from @code{perror} or -equivalent) in @emph{every} error message resulting from a failing -system call, as well as the name of the file if any and the name of the -utility. Just ``cannot open foo.c'' or ``stat failed'' is not -sufficient. - -Check every call to @code{malloc} or @code{realloc} to see if it -returned zero. Check @code{realloc} even if you are making the block -smaller; in a system that rounds block sizes to a power of 2, -@code{realloc} may get a different block if you ask for less space. - -In Unix, @code{realloc} can destroy the storage block if it returns -zero. GNU @code{realloc} does not have this bug: if it fails, the -original block is unchanged. Feel free to assume the bug is fixed. If -you wish to run your program on Unix, and wish to avoid lossage in this -case, you can use the GNU @code{malloc}. - -You must expect @code{free} to alter the contents of the block that was -freed. Anything you want to fetch from the block, you must fetch before -calling @code{free}. - -If @code{malloc} fails in a noninteractive program, make that a fatal -error. In an interactive program (one that reads commands from the -user), it is better to abort the command and return to the command -reader loop. This allows the user to kill other processes to free up -virtual memory, and then try the command again. - -Use @code{getopt_long} to decode arguments, unless the argument syntax -makes this unreasonable. - -When static storage is to be written in during program execution, use -explicit C code to initialize it. Reserve C initialized declarations -for data that will not be changed. - -Try to avoid low-level interfaces to obscure Unix data structures (such -as file directories, utmp, or the layout of kernel memory), since these -are less likely to work compatibly. If you need to find all the files -in a directory, use @code{readdir} or some other high-level interface. -These will be supported compatibly by GNU. - -By default, the GNU system will provide the signal handling functions of -@sc{BSD} and of @sc{POSIX}. So GNU software should be written to use -these. - -In error checks that detect ``impossible'' conditions, just abort. -There is usually no point in printing any message. These checks -indicate the existence of bugs. Whoever wants to fix the bugs will have -to read the source code and run a debugger. So explain the problem with -comments in the source. The relevant data will be in variables, which -are easy to examine with the debugger, so there is no point moving them -elsewhere. - - -@node Errors -@chapter Formatting Error Messages - -Error messages from compilers should look like this: - -@example -@var{source-file-name}:@var{lineno}: @var{message} -@end example - -Error messages from other noninteractive programs should look like this: - -@example -@var{program}:@var{source-file-name}:@var{lineno}: @var{message} -@end example - -@noindent -when there is an appropriate source file, or like this: - -@example -@var{program}: @var{message} -@end example - -@noindent -when there is no relevant source file. - -In an interactive program (one that is reading commands from a -terminal), it is better not to include the program name in an error -message. The place to indicate which program is running is in the -prompt or with the screen layout. (When the same program runs with -input from a source other than a terminal, it is not interactive and -would do best to print error messages using the noninteractive style.) - -The string @var{message} should not begin with a capital letter when -it follows a program name and/or filename. Also, it should not end -with a period. - -Error messages from interactive programs, and other messages such as -usage messages, should start with a capital letter. But they should not -end with a period. - - -@node Libraries -@chapter Library Behavior - -Try to make library functions reentrant. If they need to do dynamic -storage allocation, at least try to avoid any nonreentrancy aside from -that of @code{malloc} itself. - -Here are certain name conventions for libraries, to avoid name -conflicts. - -Choose a name prefix for the library, more than two characters long. -All external function and variable names should start with this -prefix. In addition, there should only be one of these in any given -library member. This usually means putting each one in a separate -source file. - -An exception can be made when two external symbols are always used -together, so that no reasonable program could use one without the -other; then they can both go in the same file. - -External symbols that are not documented entry points for the user -should have names beginning with @samp{_}. They should also contain -the chosen name prefix for the library, to prevent collisions with -other libraries. These can go in the same files with user entry -points if you like. - -Static functions and variables can be used as you like and need not -fit any naming convention. - - -@node Portability -@chapter Portability As It Applies to GNU - -Much of what is called ``portability'' in the Unix world refers to -porting to different Unix versions. This is a secondary consideration -for GNU software, because its primary purpose is to run on top of one -and only one kernel, the GNU kernel, compiled with one and only one C -compiler, the GNU C compiler. The amount and kinds of variation among -GNU systems on different cpu's will be like the variation among Berkeley -4.3 systems on different cpu's. - -All users today run GNU software on non-GNU systems. So supporting a -variety of non-GNU systems is desirable; simply not paramount. -The easiest way to achieve portability to a reasonable range of systems -is to use Autoconf. It's unlikely that your program needs to know more -information about the host machine than Autoconf can provide, simply -because most of the programs that need such knowledge have already been -written. - -It is difficult to be sure exactly what facilities the GNU kernel -will provide, since it isn't finished yet. Therefore, assume you can -use anything in 4.3; just avoid using the format of semi-internal data -bases (e.g., directories) when there is a higher-level alternative -(@code{readdir}). - -You can freely assume any reasonably standard facilities in the C -language, libraries or kernel, because we will find it necessary to -support these facilities in the full GNU system, whether or not we -have already done so. The fact that there may exist kernels or C -compilers that lack these facilities is irrelevant as long as the GNU -kernel and C compiler support them. - -It remains necessary to worry about differences among cpu types, such -as the difference in byte ordering and alignment restrictions. It's -unlikely that 16-bit machines will ever be supported by GNU, so there -is no point in spending any time to consider the possibility that an -int will be less than 32 bits. - -You can assume that all pointers have the same format, regardless -of the type they point to, and that this is really an integer. -There are some weird machines where this isn't true, but they aren't -important; don't waste time catering to them. Besides, eventually -we will put function prototypes into all GNU programs, and that will -probably make your program work even on weird machines. - -Since some important machines (including the 68000) are big-endian, -it is important not to assume that the address of an @code{int} object -is also the address of its least-significant byte. Thus, don't -make the following mistake: - -@example -int c; -@dots{} -while ((c = getchar()) != EOF) - write(file_descriptor, &c, 1); -@end example - -You can assume that it is reasonable to use a meg of memory. Don't -strain to reduce memory usage unless it can get to that level. If -your program creates complicated data structures, just make them in -core and give a fatal error if malloc returns zero. - -If a program works by lines and could be applied to arbitrary -user-supplied input files, it should keep only a line in memory, because -this is not very hard and users will want to be able to operate on input -files that are bigger than will fit in core all at once. - - -@node User Interfaces -@chapter Standards for Command Line Interfaces - -Please don't make the behavior of a utility depend on the name used -to invoke it. It is useful sometimes to make a link to a utility -with a different name, and that should not change what it does. - -Instead, use a run time option or a compilation switch or both -to select among the alternate behaviors. - -Likewise, please don't make the behavior of the program depend on the -type of output device it is used with. Device independence is an -important principle of the system's design; do not compromise it -merely to save someone from typing an option now and then. - -If you think one behavior is most useful when the output is to a -terminal, and another is most useful when the output is a file or a -pipe, then it is usually best to make the default behavior the one that -is useful with output to a terminal, and have an option for the other -behavior. - -Compatibility requires certain programs to depend on the type of output -device. It would be disastrous if @code{ls} or @code{sh} did not do so -in the way all users expect. In some of these cases, we supplement the -program with a preferred alternate version that does not depend on the -output device type. For example, we provide a @code{dir} program much -like @code{ls} except that its default output format is always -multi-column format. - -It is a good idea to follow the @sc{POSIX} guidelines for the -command-line options of a program. The easiest way to do this is to use -@code{getopt} to parse them. Note that the GNU version of @code{getopt} -will normally permit options anywhere among the arguments unless the -special argument @samp{--} is used. This is not what @sc{POSIX} -specifies; it is a GNU extension. - -Please define long-named options that are equivalent to the -single-letter Unix-style options. We hope to make GNU more user -friendly this way. This is easy to do with the GNU function -@code{getopt_long}. - -One of the advantages of long-named options is that they can be -consistent from program to program. For example, users should be able -to expect the ``verbose'' option of any GNU program which has one, to be -spelled precisely @samp{--verbose}. To achieve this uniformity, look at -the table of common long-option names when you choose the option names -for your program. The table appears below. - -If you use names not already in the table, please send -@samp{gnu@@prep.ai.mit.edu} a list of them, with their meanings, so we -can update the table. - -It is usually a good idea for file names given as ordinary arguments -to be input files only; any output files would be specified using -options (preferably @samp{-o}). Even if you allow an output file name -as an ordinary argument for compatibility, try to provide a suitable -option as well. This will lead to more consistency among GNU -utilities, so that there are fewer idiosyncracies for users to -remember. - -Programs should support an option @samp{--version} which prints the -program's version number on standard output and exits successfully, and -an option @samp{--help} which prints option usage information on -standard output and exits successfully. These options should inhibit -the normal function of the command; they should do nothing except print -the requested information. - -@c Please leave newlines between items in this table; it's much easier -@c to update when it isn't completely squashed together and unreadable. -@c When there is more than one short option for a long option name, put -@c a semicolon between the lists of the programs that use them, not a -@c period. --friedman - -@table @samp - -@item auto-check -@samp{-a} in @code{recode}. - -@item auto-reference -@samp{-A} in @code{ptx}. - -@item after-date -@samp{-N} in @code{tar}. - -@item all -@samp{-a} in @code{du}, @code{ls}, @code{nm}, @code{stty}, @code{uname}, -and @code{unexpand}. - -@item all-text -@samp{-a} in @code{diff}. - -@item almost-all -@samp{-A} in @code{ls}. - -@item append -@samp{-a} in @code{etags}, @code{tee}, @code{time}; -@samp{-r} in @code{tar}. - -@item archive -@samp{-a} in @code{cp}. - -@item archive-name -@samp{-n} in @code{shar}. - -@item arglength -@samp{-l} in @code{m4}. - -@item ascii -@samp{-a} in @code{diff}. - -@item assume-new -@samp{-W} in Make. - -@item assume-old -@samp{-o} in Make. - -@item backward-search -@samp{-B} in etags. - -@item basename -@samp{-f} in @code{shar}. - -@item batch -Used in GDB. - -@item baud -Used in GDB. - -@item before -@samp{-b} in @code{tac}. - -@item binary -@samp{-b} in @code{cpio} and @code{diff}. - -@item bits-per-code -@samp{-b} in @code{shar}. - -@item block-size -Used in @code{cpio} and @code{tar}. - -@item blocks -@samp{-b} in @code{head} and @code{tail}. - -@item break-file -@samp{-b} in @code{ptx}. - -@item brief -Used in various programs to make output shorter. - -@item bytes -@samp{-c} in @code{head}, @code{split}, and @code{tail}. - -@item c@t{++} -@samp{-C} in @code{etags}. - -@item catenate -@samp{-A} in @code{tar}. - -@item cd -Used in various programs to specify the directory to use. - -@item changes -@samp{-c} in @code{chgrp} and @code{chown}. - -@item classify -@samp{-F} in @code{ls}. - -@item colons -@samp{-c} in @code{recode}. - -@item command -@samp{-c} in @code{su}; -@samp{-x} in GDB. - -@item compare -@samp{-d} in @code{tar}. - -@item compress -@samp{-Z} in @code{tar} and @code{shar}. - -@item concatenate -@samp{-A} in @code{tar}. - -@item confirmation -@samp{-w} in @code{tar}. - -@item context -Used in @code{diff}. - -@item copyright -@samp{-C} in @code{ptx} and @code{recode}. - -@item core -Used in GDB. - -@item count -@samp{-q} in @code{who}. - -@item count-links -@samp{-l} in @code{du}. - -@item create -Used in @code{tar} and @code{cpio}. - -@item cut-mark -@samp{-c} in @code{shar}. - -@item cxref -@samp{-x} in @code{etags}. - -@item date -@samp{-d} in @code{touch}. - -@item debug -@samp{-d} in Make and @code{m4}; -@samp{-t} in Bison. - -@item define -@samp{-D} in @code{m4}. - -@item defines -@samp{-d} in Bison and @code{etags}. - -@item delete -@samp{-D} in @code{tar}. - -@item dereference -@samp{-L} in @code{chgrp}, @code{chown}, @code{cpio}, @code{du}, -@code{ls}, and @code{tar}. - -@item dereference-args -@samp{-D} in @code{du}. - -@item diacritics -@samp{-d} in @code{recode}. - -@item dictionary-order -@samp{-d} in @code{look}. - -@item diff -@samp{-d} in @code{tar}. - -@item digits -@samp{-n} in @code{csplit}. - -@item directory -Specify the directory to use, in various programs. In @code{ls}, it -means to show directories themselves rather than their contents. In -@code{rm} and @code{ln}, it means to not treat links to directories -specially. - -@item discard-all -@samp{-x} in @code{strip}. - -@item discard-locals -@samp{-X} in @code{strip}. - -@item diversions -@samp{-N} in @code{m4}. - -@item dry-run -@samp{-n} in Make. - -@item ed -@samp{-e} in @code{diff}. - -@item elide-empty-files -@samp{-z} in @code{csplit}. - -@item entire-new-file -@samp{-N} in @code{diff}. - -@item environment-overrides -@samp{-e} in Make. - -@item eof -@samp{-e} in @code{xargs}. - -@item epoch -Used in GDB. - -@item error-limit -Used in Makeinfo. - -@item error-output -@samp{-o} in @code{m4}. - -@item escape -@samp{-b} in @code{ls}. - -@item exclude-from -@samp{-X} in @code{tar}. - -@item exec -Used in GDB. - -@item exit -@samp{-x} in @code{xargs}. - -@item exit-0 -@samp{-e} in @code{unshar}. - -@item expand-tabs -@samp{-t} in @code{diff}. - -@item expression -@samp{-e} in @code{sed}. - -@item extern-only -@samp{-g} in @code{nm}. - -@item extract -@samp{-i} in @code{cpio}; -@samp{-x} in @code{tar}. - -@item faces -@samp{-f} in @code{finger}. - -@item fast -@samp{-f} in @code{su}. - -@item fatal-warnings -@samp{-E} in @code{m4}. - -@item file -@samp{-f} in @code{info}, Make, @code{mt}, and @code{tar}; -@samp{-n} in @code{sed}; -@samp{-r} in @code{touch}. - -@item file-prefix -@samp{-b} in Bison. - -@item file-type -@samp{-F} in @code{ls}. - -@item files-from -@samp{-T} in @code{tar}. - -@item fill-column -Used in Makeinfo. - -@item flag-truncation -@samp{-F} in @code{ptx}. - -@item fixed-output-files -@samp{-y} in Bison. - -@item follow -@samp{-f} in @code{tail}. - -@item footnote-style -Used in Makeinfo. - -@item force -@samp{-f} in @code{cp}, @code{ln}, @code{mv}, and @code{rm}. - -@item force-prefix -@samp{-F} in @code{shar}. - -@item format -Used in @code{ls}, @code{time}, and @code{ptx}. - -@item forward-search -@samp{-F} in @code{etags}. - -@item fullname -Used in GDB. - -@item gap-size -@samp{-g} in @code{ptx}. - -@item get -@samp{-x} in @code{tar}. - -@item graphic -@samp{-i} in @code{ul}. - -@item graphics -@samp{-g} in @code{recode}. - -@item group -@samp{-g} in @code{install}. - -@item gzip -@samp{-z} in @code{tar} and @code{shar}. - -@item hashsize -@samp{-H} in @code{m4}. - -@item header -@samp{-h} in @code{objdump} and @code{recode} - -@item heading -@samp{-H} in @code{who}. - -@item help -Used to ask for brief usage information. - -@item here-delimiter -@samp{-d} in @code{shar}. - -@item hide-control-chars -@samp{-q} in @code{ls}. - -@item idle -@samp{-u} in @code{who}. - -@item ifdef -@samp{-D} in @code{diff}. - -@item ignore -@samp{-I} in @code{ls}; -@samp{-x} in @code{recode}. - -@item ignore-all-space -@samp{-w} in @code{diff}. - -@item ignore-backups -@samp{-B} in @code{ls}. - -@item ignore-blank-lines -@samp{-B} in @code{diff}. - -@item ignore-case -@samp{-f} in @code{look} and @code{ptx}; -@samp{-i} in @code{diff}. - -@item ignore-errors -@samp{-i} in Make. - -@item ignore-file -@samp{-i} in @code{ptx}. - -@item ignore-indentation -@samp{-S} in @code{etags}. - -@item ignore-init-file -@samp{-f} in Oleo. - -@item ignore-interrupts -@samp{-i} in @code{tee}. - -@item ignore-matching-lines -@samp{-I} in @code{diff}. - -@item ignore-space-change -@samp{-b} in @code{diff}. - -@item ignore-zeros -@samp{-i} in @code{tar}. - -@item include -@samp{-i} in @code{etags}; -@samp{-I} in @code{m4}. - -@item include-dir -@samp{-I} in Make. - -@item incremental -@samp{-G} in @code{tar}. - -@item info -@samp{-i}, @samp{-l}, and @samp{-m} in Finger. - -@item initial -@samp{-i} in @code{expand}. - -@item initial-tab -@samp{-T} in @code{diff}. - -@item inode -@samp{-i} in @code{ls}. - -@item interactive -@samp{-i} in @code{cp}, @code{ln}, @code{mv}, @code{rm}; -@samp{-e} in @code{m4}; -@samp{-p} in @code{xargs}; -@samp{-w} in @code{tar}. - -@item intermix-type -@samp{-p} in @code{shar}. - -@item jobs -@samp{-j} in Make. - -@item just-print -@samp{-n} in Make. - -@item keep-going -@samp{-k} in Make. - -@item keep-files -@samp{-k} in @code{csplit}. - -@item kilobytes -@samp{-k} in @code{du} and @code{ls}. - -@item level-for-gzip -@samp{-g} in @code{shar}. - -@item line-bytes -@samp{-C} in @code{split}. - -@item lines -Used in @code{split}, @code{head}, and @code{tail}. - -@item link -@samp{-l} in @code{cpio}. - -@item list -@samp{-t} in @code{cpio}; -@samp{-l} in @code{recode}. - -@item list -@samp{-t} in @code{tar}. - -@item literal -@samp{-N} in @code{ls}. - -@item load-average -@samp{-l} in Make. - -@item login -Used in @code{su}. - -@item machine -No listing of which programs already use this; -someone should check to -see if any actually do and tell @code{gnu@@prep.ai.mit.edu}. - -@item macro-name -@samp{-M} in @code{ptx}. - -@item mail -@samp{-m} in @code{hello} and @code{uname}. - -@item make-directories -@samp{-d} in @code{cpio}. - -@item makefile -@samp{-f} in Make. - -@item mapped -Used in GDB. - -@item max-args -@samp{-n} in @code{xargs}. - -@item max-chars -@samp{-n} in @code{xargs}. - -@item max-lines -@samp{-l} in @code{xargs}. - -@item max-load -@samp{-l} in Make. - -@item max-procs -@samp{-P} in @code{xargs}. - -@item mesg -@samp{-T} in @code{who}. - -@item message -@samp{-T} in @code{who}. - -@item minimal -@samp{-d} in @code{diff}. - -@item mixed-uuencode -@samp{-M} in @code{shar}. - -@item mode -@samp{-m} in @code{install}, @code{mkdir}, and @code{mkfifo}. - -@item modification-time -@samp{-m} in @code{tar}. - -@item multi-volume -@samp{-M} in @code{tar}. - -@item name-prefix -@samp{-a} in Bison. - -@item nesting-limit -@samp{-L} in @code{m4}. - -@item net-headers -@samp{-a} in @code{shar}. - -@item new-file -@samp{-W} in Make. - -@item no-builtin-rules -@samp{-r} in Make. - -@item no-character-count -@samp{-w} in @code{shar}. - -@item no-check-existing -@samp{-x} in @code{shar}. - -@item no-create -@samp{-c} in @code{touch}. - -@item no-defines -@samp{-D} in @code{etags}. - -@item no-dereference -@samp{-d} in @code{cp}. - -@item no-keep-going -@samp{-S} in Make. - -@item no-lines -@samp{-l} in Bison. - -@item no-piping -@samp{-P} in @code{shar}. - -@item no-prof -@samp{-e} in @code{gprof}. - -@item no-sort -@samp{-p} in @code{nm}. - -@item no-split -Used in Makeinfo. - -@item no-static -@samp{-a} in @code{gprof}. - -@item no-time -@samp{-E} in @code{gprof}. - -@item no-timestamp -@samp{-m} in @code{shar}. - -@item no-validate -Used in Makeinfo. - -@item no-verbose -@samp{-v} in @code{shar}. - -@item no-warn -Used in various programs to inhibit warnings. - -@item node -@samp{-n} in @code{info}. - -@item nodename -@samp{-n} in @code{uname}. - -@item nonmatching -@samp{-f} in @code{cpio}. - -@item nstuff -@samp{-n} in @code{objdump}. - -@item null -@samp{-0} in @code{xargs}. - -@item number -@samp{-n} in @code{cat}. - -@item number-nonblank -@samp{-b} in @code{cat}. - -@item numeric-sort -@samp{-n} in @code{nm}. - -@item numeric-uid-gid -@samp{-n} in @code{cpio} and @code{ls}. - -@item nx -Used in GDB. - -@item old-archive -@samp{-o} in @code{tar}. - -@item old-file -@samp{-o} in Make. - -@item one-file-system -@samp{-l} in @code{tar}, @code{cp}, and @code{du}. - -@item only-file -@samp{-o} in @code{ptx}. - -@item only-prof -@samp{-f} in @code{gprof}. - -@item only-time -@samp{-F} in @code{gprof}. - -@item output -In various programs, specify the output file name. - -@item output-prefix -@samp{-o} in @code{shar}. - -@item override -@samp{-o} in @code{rm}. - -@item overwrite -@samp{-c} in @code{unshar}. - -@item owner -@samp{-o} in @code{install}. - -@item paginate -@samp{-l} in @code{diff}. - -@item paragraph-indent -Used in Makeinfo. - -@item parents -@samp{-p} in @code{mkdir} and @code{rmdir}. - -@item pass-all -@samp{-p} in @code{ul}. - -@item pass-through -@samp{-p} in @code{cpio}. - -@item port -@samp{-P} in @code{finger}. - -@item portability -@samp{-c} in @code{cpio} and @code{tar}. - -@item prefix-builtins -@samp{-P} in @code{m4}. - -@item prefix -@samp{-f} in @code{csplit}. - -@item preserve -Used in @code{tar} and @code{cp}. - -@item preserve-environment -@samp{-p} in @code{su}. - -@item preserve-modification-time -@samp{-m} in @code{cpio}. - -@item preserve-order -@samp{-s} in @code{tar}. - -@item preserve-permissions -@samp{-p} in @code{tar}. - -@item print -@samp{-l} in @code{diff}. - -@item print-chars -@samp{-L} in @code{cmp}. - -@item print-data-base -@samp{-p} in Make. - -@item print-directory -@samp{-w} in Make. - -@item print-file-name -@samp{-o} in @code{nm}. - -@item print-symdefs -@samp{-s} in @code{nm}. - -@item query-user -@samp{-X} in @code{shar}. - -@item question -@samp{-q} in Make. - -@item quiet -Used in many programs to inhibit the usual output. @strong{Note:} every -program accepting @samp{--quiet} should accept @samp{--silent} as a -synonym. - -@item quote-name -@samp{-Q} in @code{ls}. - -@item rcs -@samp{-n} in @code{diff}. - -@item read-full-blocks -@samp{-B} in @code{tar}. - -@item readnow -Used in GDB. - -@item recon -@samp{-n} in Make. - -@item record-number -@samp{-R} in @code{tar}. - -@item recursive -Used in @code{chgrp}, @code{chown}, @code{cp}, @code{ls}, @code{diff}, -and @code{rm}. - -@item reference-limit -Used in Makeinfo. - -@item references -@samp{-r} in @code{ptx}. - -@item regex -@samp{-r} in @code{tac}. - -@item release -@samp{-r} in @code{uname}. - -@item relocation -@samp{-r} in @code{objdump}. - -@item rename -@samp{-r} in @code{cpio}. - -@item replace -@samp{-i} in @code{xargs}. - -@item report-identical-files -@samp{-s} in @code{diff}. - -@item reset-access-time -@samp{-a} in @code{cpio}. - -@item reverse -@samp{-r} in @code{ls} and @code{nm}. - -@item reversed-ed -@samp{-f} in @code{diff}. - -@item right-side-defs -@samp{-R} in @code{ptx}. - -@item same-order -@samp{-s} in @code{tar}. - -@item same-permissions -@samp{-p} in @code{tar}. - -@item save -@samp{-g} in @code{stty}. - -@item se -Used in GDB. - -@item sentence-regexp -@samp{-S} in @code{ptx}. - -@item separate-dirs -@samp{-S} in @code{du}. - -@item separator -@samp{-s} in @code{tac}. - -@item sequence -Used by @code{recode} to chose files or pipes for sequencing passes. - -@item shell -@samp{-s} in @code{su}. - -@item show-all -@samp{-A} in @code{cat}. - -@item show-c-function -@samp{-p} in @code{diff}. - -@item show-ends -@samp{-E} in @code{cat}. - -@item show-function-line -@samp{-F} in @code{diff}. - -@item show-tabs -@samp{-T} in @code{cat}. - -@item silent -Used in many programs to inhibit the usual output. -@strong{Note:} every program accepting -@samp{--silent} should accept @samp{--quiet} as a synonym. - -@item size -@samp{-s} in @code{ls}. - -@item sort -Used in @code{ls}. - -@item sparse -@samp{-S} in @code{tar}. - -@item speed-large-files -@samp{-H} in @code{diff}. - -@item split-at -@samp{-E} in @code{unshar}. - -@item split-size-limit -@samp{-L} in @code{shar}. - -@item squeeze-blank -@samp{-s} in @code{cat}. - -@item starting-file -Used in @code{tar} and @code{diff} to specify which file within -a directory to start processing with. - -@item stdin-file-list -@samp{-S} in @code{shar}. - -@item stop -@samp{-S} in Make. - -@item strict -@samp{-s} in @code{recode}. - -@item strip -@samp{-s} in @code{install}. - -@item strip-all -@samp{-s} in @code{strip}. - -@item strip-debug -@samp{-S} in @code{strip}. - -@item submitter -@samp{-s} in @code{shar}. - -@item suffix -@samp{-S} in @code{cp}, @code{ln}, @code{mv}. - -@item suffix-format -@samp{-b} in @code{csplit}. - -@item sum -@samp{-s} in @code{gprof}. - -@item summarize -@samp{-s} in @code{du}. - -@item symbolic -@samp{-s} in @code{ln}. - -@item symbols -Used in GDB and @code{objdump}. - -@item synclines -@samp{-s} in @code{m4}. - -@item sysname -@samp{-s} in @code{uname}. - -@item tabs -@samp{-t} in @code{expand} and @code{unexpand}. - -@item tabsize -@samp{-T} in @code{ls}. - -@item terminal -@samp{-T} in @code{tput} and @code{ul}. - -@item text -@samp{-a} in @code{diff}. - -@item text-files -@samp{-T} in @code{shar}. - -@item time -Used in @code{ls} and @code{touch}. - -@item to-stdout -@samp{-O} in @code{tar}. - -@item total -@samp{-c} in @code{du}. - -@item touch -@samp{-t} in Make, @code{ranlib}, and @code{recode}. - -@item trace -@samp{-t} in @code{m4}. - -@item traditional -@samp{-t} in @code{hello}; -@samp{-G} in @code{m4} and @code{ptx}. - -@item tty -Used in GDB. - -@item typedefs -@samp{-t} in @code{etags}. - -@item typedefs-and-c++ -@samp{-T} in @code{etags}. - -@item typeset-mode -@samp{-t} in @code{ptx}. - -@item uncompress -@samp{-z} in @code{tar}. - -@item unconditional -@samp{-u} in @code{cpio}. - -@item undefine -@samp{-U} in @code{m4}. - -@item undefined-only -@samp{-u} in @code{nm}. - -@item update -@samp{-u} in @code{cp}, @samp{etags}, @samp{mv}, @samp{tar}. - -@item uuencode -@samp{-B} in @code{shar}. - -@item vanilla-operation -@samp{-V} in @code{shar}. - -@item verbose -Print more information about progress. Many programs support this. - -@item verify -@samp{-W} in @code{tar}. - -@item version -Print the version number. - -@item version-control -@samp{-V} in @code{cp}, @code{ln}, @code{mv}. - -@item vgrind -@samp{-v} in @code{etags}. - -@item volume -@samp{-V} in @code{tar}. - -@item what-if -@samp{-W} in Make. - -@item whole-size-limit -@samp{-l} in @code{shar}. - -@item width -@samp{-w} in @code{ls} and @code{ptx}. - -@item word-regexp -@samp{-W} in @code{ptx}. - -@item writable -@samp{-T} in @code{who}. - -@item zeros -@samp{-z} in @code{gprof}. - -@end table - -@node Documentation -@chapter Documenting Programs - -Please use Texinfo for documenting GNU programs. See the Texinfo -manual, either the hardcopy or the version in the GNU Emacs Info -subsystem (@kbd{C-h i}). See existing GNU Texinfo files (e.g., those -under the @file{man/} directory in the GNU Emacs distribution) for -examples. - -The title page of the manual should state the version of the program -which the manual applies to. The Top node of the manual should also -contain this information. If the manual is changing more frequently -than or independent of the program, also state a version number for -the manual in both of these places. - -The manual should document all command-line arguments and all -commands. It should give examples of their use. But don't organize -the manual as a list of features. Instead, organize it by the -concepts a user will have before reaching that point in the manual. -Address the goals that a user will have in mind, and explain how to -accomplish them. Don't use Unix man pages as a model for how to -write GNU documentation; they are a bad example to follow. - -The manual should have a node named @samp{@var{program} Invocation} or -@samp{Invoking @var{program}}, where @var{program} stands for the name -of the program being described, as you would type it in the shell to run -the program. This node (together with its subnodes, if any) should -describe the program's command line arguments and how to run it (the -sort of information people would look in a man page for). Start with an -@samp{@@example} containing a template for all the options and arguments -that the program uses. - -Alternatively, put a menu item in some menu whose item name fits one of -the above patterns. This identifies the node which that item points to -as the node for this purpose, regardless of the node's actual name. - -There will be automatic features for specifying a program name and -quickly reading just this part of its manual. - -If one manual describes several programs, it should have such a node for -each program described. - -In addition to its manual, the package should have a file named -@file{NEWS} which contains a list of user-visible changes worth -mentioning. In each new release, add items to the front of the file and -identify the version they pertain to. Don't discard old items; leave -them in the file after the newer items. This way, a user upgrading from -any previous version can see what is new. - -If the @file{NEWS} file gets very long, move some of the older items -into a file named @file{ONEWS} and put a note at the end referring the -user to that file. - -Please do not use the term ``pathname'' that is used in Unix -documentation; use ``file name'' (two words) instead. We use the term -``path'' only for search paths, which are lists of file names. - -It is ok to supply a man page for the program as well as a Texinfo -manual if you wish to. But keep in mind that supporting a man page -requires continual effort, each time the program is changed. Any time -you spend on the man page is time taken away from more useful things you -could contribute. - -Thus, even if a user volunteers to donate a man page, you may find this -gift costly to accept. Unless you have time on your hands, it may be -better to refuse the man page unless the same volunteer agrees to take -full responsibility for maintaining it---so that you can wash your hands -of it entirely. If the volunteer ceases to do the job, then don't feel -obliged to pick it up yourself; it may be better to withdraw the man -page until another volunteer offers to carry on with it. - -Alternatively, if you expect the discrepancies to be small enough that -the man page remains useful, put a prominent note near the beginning of -the man page explaining that you don't maintain it and that the Texinfo -manual is more authoritative, and describing how to access the Texinfo -documentation. - -@node Releases -@chapter Making Releases - -Package the distribution of Foo version 69.96 in a gzipped tar file -named @file{foo-69.96.tar.gz}. It should unpack into a subdirectory -named @file{foo-69.96}. - -Building and installing the program should never modify any of the files -contained in the distribution. This means that all the files that form -part of the program in any way must be classified into @dfn{source -files} and @dfn{non-source files}. Source files are written by humans -and never changed automatically; non-source files are produced from -source files by programs under the control of the Makefile. - -Naturally, all the source files must be in the distribution. It is okay -to include non-source files in the distribution, provided they are -up-to-date and machine-independent, so that building the distribution -normally will never modify them. We commonly include non-source files -produced by Bison, Lex, @TeX{}, and Makeinfo; this helps avoid -unnecessary dependencies between our distributions, so that users can -install whichever packages they want to install. - -Non-source files that might actually be modified by building and -installing the program should @strong{never} be included in the -distribution. So if you do distribute non-source files, always make -sure they are up to date when you make a new distribution. - -Make sure that the directory into which the distribution unpacks (as -well as any subdirectories) are all world-writable (octal mode 777). -This is so that old versions of @code{tar} which preserve the -ownership and permissions of the files from the tar archive will be -able to extract all the files even if the user is unprivileged. - -Make sure that all the files in the distribution are world-readable. - -Make sure that no file name in the distribution is more than 14 -characters long. Likewise, no file created by building the program -should have a name longer than 14 characters. The reason for this is -that some systems adhere to a foolish interpretation of the POSIX -standard, and refuse to open a longer name, rather than truncating as -they did in the past. - -Don't include any symbolic links in the distribution itself. If the tar -file contains symbolic links, then people cannot even unpack it on -systems that don't support symbolic links. Also, don't use multiple -names for one file in different directories, because certain file -systems cannot handle this and that prevents unpacking the -distribution. - -Try to make sure that all the file names will be unique on MS-DOG. A -name on MS-DOG consists of up to 8 characters, optionally followed by a -period and up to three characters. MS-DOG will truncate extra -characters both before and after the period. Thus, -@file{foobarhacker.c} and @file{foobarhacker.o} are not ambiguous; they -are truncated to @file{foobarha.c} and @file{foobarha.o}, which are -distinct. - -Include in your distribution a copy of the @file{texinfo.tex} you used -to test print any @file{*.texinfo} files. - -Likewise, if your program uses small GNU software packages like regex, -getopt, obstack, or termcap, include them in the distribution file. -Leaving them out would make the distribution file a little smaller at -the expense of possible inconvenience to a user who doesn't know what -other files to get. - -@contents - -@bye diff --git a/util/autoconf/testsuite/Makefile b/util/autoconf/testsuite/Makefile deleted file mode 100644 index e69de29..0000000 --- a/util/autoconf/testsuite/Makefile +++ /dev/null diff --git a/util/autoconf/texinfo.tex b/util/autoconf/texinfo.tex deleted file mode 100644 index e544dc6..0000000 --- a/util/autoconf/texinfo.tex +++ /dev/null @@ -1,4355 +0,0 @@ -%% TeX macros to handle texinfo files - -% Copyright (C) 1985, 86, 88, 90, 91, 92, 93, 1994 Free Software Foundation, Inc. - -%This texinfo.tex file is free software; you can redistribute it and/or -%modify it under the terms of the GNU General Public License as -%published by the Free Software Foundation; either version 2, or (at -%your option) any later version. - -%This texinfo.tex file is distributed in the hope that it will be -%useful, but WITHOUT ANY WARRANTY; without even the implied warranty -%of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -%General Public License for more details. - -%You should have received a copy of the GNU General Public License -%along with this texinfo.tex file; see the file COPYING. If not, write -%to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, -%USA. - - -%In other words, you are welcome to use, share and improve this program. -%You are forbidden to forbid anyone else to use, share and improve -%what you give them. Help stamp out software-hoarding! - -% This automatically updates the version number based on RCS. -\def\deftexinfoversion$#1: #2 ${\def\texinfoversion{#2}} -\deftexinfoversion$Revision$ -\message{Loading texinfo package [Version \texinfoversion]:} - -% Print the version number if in a .fmt file. -\everyjob{\message{[Texinfo version \texinfoversion]}\message{}} - -% Save some parts of plain tex whose names we will redefine. - -\let\ptextilde=\~ -\let\ptexlbrace=\{ -\let\ptexrbrace=\} -\let\ptexdots=\dots -\let\ptexdot=\. -\let\ptexstar=\* -\let\ptexend=\end -\let\ptexbullet=\bullet -\let\ptexb=\b -\let\ptexc=\c -\let\ptexi=\i -\let\ptext=\t -\let\ptexl=\l -\let\ptexL=\L - -% Be sure we're in horizontal mode when doing a tie, since we make space -% equivalent to this in @example-like environments. Otherwise, a space -% at the beginning of a line will start with \penalty -- and -% since \penalty is valid in vertical mode, we'd end up putting the -% penalty on the vertical list instead of in the new paragraph. -{\catcode`@ = 11 - \gdef\tie{\leavevmode\penalty\@M\ } -} -\let\~ = \tie % And make it available as @~. - -\message{Basics,} -\chardef\other=12 - -% If this character appears in an error message or help string, it -% starts a new line in the output. -\newlinechar = `^^J - -% Set up fixed words for English. -\ifx\putwordChapter\undefined{\gdef\putwordChapter{Chapter}}\fi% -\def\putwordInfo{Info}% -\ifx\putwordSee\undefined{\gdef\putwordSee{See}}\fi% -\ifx\putwordsee\undefined{\gdef\putwordsee{see}}\fi% -\ifx\putwordfile\undefined{\gdef\putwordfile{file}}\fi% -\ifx\putwordpage\undefined{\gdef\putwordpage{page}}\fi% -\ifx\putwordsection\undefined{\gdef\putwordsection{section}}\fi% -\ifx\putwordSection\undefined{\gdef\putwordSection{Section}}\fi% -\ifx\putwordTableofContents\undefined{\gdef\putwordTableofContents{Table of Contents}}\fi% -\ifx\putwordShortContents\undefined{\gdef\putwordShortContents{Short Contents}}\fi% -\ifx\putwordAppendix\undefined{\gdef\putwordAppendix{Appendix}}\fi% - -% Ignore a token. -% -\def\gobble#1{} - -\hyphenation{ap-pen-dix} -\hyphenation{mini-buf-fer mini-buf-fers} -\hyphenation{eshell} - -% Margin to add to right of even pages, to left of odd pages. -\newdimen \bindingoffset \bindingoffset=0pt -\newdimen \normaloffset \normaloffset=\hoffset -\newdimen\pagewidth \newdimen\pageheight -\pagewidth=\hsize \pageheight=\vsize - -% Sometimes it is convenient to have everything in the transcript file -% and nothing on the terminal. We don't just call \tracingall here, -% since that produces some useless output on the terminal. -% -\def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}% -\def\loggingall{\tracingcommands2 \tracingstats2 - \tracingpages1 \tracingoutput1 \tracinglostchars1 - \tracingmacros2 \tracingparagraphs1 \tracingrestores1 - \showboxbreadth\maxdimen\showboxdepth\maxdimen -}% - -%---------------------Begin change----------------------- -% -%%%% For @cropmarks command. -% Dimensions to add cropmarks at corners Added by P. A. MacKay, 12 Nov. 1986 -% -\newdimen\cornerlong \newdimen\cornerthick -\newdimen \topandbottommargin -\newdimen \outerhsize \newdimen \outervsize -\cornerlong=1pc\cornerthick=.3pt % These set size of cropmarks -\outerhsize=7in -%\outervsize=9.5in -% Alternative @smallbook page size is 9.25in -\outervsize=9.25in -\topandbottommargin=.75in -% -%---------------------End change----------------------- - -% \onepageout takes a vbox as an argument. Note that \pagecontents -% does insertions itself, but you have to call it yourself. -\chardef\PAGE=255 \output={\onepageout{\pagecontents\PAGE}} -\def\onepageout#1{\hoffset=\normaloffset -\ifodd\pageno \advance\hoffset by \bindingoffset -\else \advance\hoffset by -\bindingoffset\fi -{\escapechar=`\\\relax % makes sure backslash is used in output files. -\shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}% -{\let\hsize=\pagewidth \makefootline}}}% -\advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi} - -%%%% For @cropmarks command %%%% - -% Here is a modification of the main output routine for Near East Publications -% This provides right-angle cropmarks at all four corners. -% The contents of the page are centerlined into the cropmarks, -% and any desired binding offset is added as an \hskip on either -% site of the centerlined box. (P. A. MacKay, 12 November, 1986) -% -\def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up -{\escapechar=`\\\relax % makes sure backslash is used in output files. - \shipout - \vbox to \outervsize{\hsize=\outerhsize - \vbox{\line{\ewtop\hfill\ewtop}} - \nointerlineskip - \line{\vbox{\moveleft\cornerthick\nstop} - \hfill - \vbox{\moveright\cornerthick\nstop}} - \vskip \topandbottommargin - \centerline{\ifodd\pageno\hskip\bindingoffset\fi - \vbox{ - {\let\hsize=\pagewidth \makeheadline} - \pagebody{#1} - {\let\hsize=\pagewidth \makefootline}} - \ifodd\pageno\else\hskip\bindingoffset\fi} - \vskip \topandbottommargin plus1fill minus1fill - \boxmaxdepth\cornerthick - \line{\vbox{\moveleft\cornerthick\nsbot} - \hfill - \vbox{\moveright\cornerthick\nsbot}} - \nointerlineskip - \vbox{\line{\ewbot\hfill\ewbot}} - }} - \advancepageno - \ifnum\outputpenalty>-20000 \else\dosupereject\fi} -% -% Do @cropmarks to get crop marks -\def\cropmarks{\let\onepageout=\croppageout } - -\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}} -{\catcode`\@ =11 -\gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi -\dimen@=\dp#1 \unvbox#1 -\ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi -\ifr@ggedbottom \kern-\dimen@ \vfil \fi} -} - -% -% Here are the rules for the cropmarks. Note that they are -% offset so that the space between them is truly \outerhsize or \outervsize -% (P. A. MacKay, 12 November, 1986) -% -\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong} -\def\nstop{\vbox - {\hrule height\cornerthick depth\cornerlong width\cornerthick}} -\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong} -\def\nsbot{\vbox - {\hrule height\cornerlong depth\cornerthick width\cornerthick}} - -% Parse an argument, then pass it to #1. The argument is the rest of -% the input line (except we remove a trailing comment). #1 should be a -% macro which expects an ordinary undelimited TeX argument. -% -\def\parsearg#1{% - \let\next = #1% - \begingroup - \obeylines - \futurelet\temp\parseargx -} - -% If the next token is an obeyed space (from an @example environment or -% the like), remove it and recurse. Otherwise, we're done. -\def\parseargx{% - % \obeyedspace is defined far below, after the definition of \sepspaces. - \ifx\obeyedspace\temp - \expandafter\parseargdiscardspace - \else - \expandafter\parseargline - \fi -} - -% Remove a single space (as the delimiter token to the macro call). -{\obeyspaces % - \gdef\parseargdiscardspace {\futurelet\temp\parseargx}} - -{\obeylines % - \gdef\parseargline#1^^M{% - \endgroup % End of the group started in \parsearg. - % - % First remove any @c comment, then any @comment. - % Result of each macro is put in \toks0. - \argremovec #1\c\relax % - \expandafter\argremovecomment \the\toks0 \comment\relax % - % - % Call the caller's macro, saved as \next in \parsearg. - \expandafter\next\expandafter{\the\toks0}% - }% -} - -% Since all \c{,omment} does is throw away the argument, we can let TeX -% do that for us. The \relax here is matched by the \relax in the call -% in \parseargline; it could be more or less anything, its purpose is -% just to delimit the argument to the \c. -\def\argremovec#1\c#2\relax{\toks0 = {#1}} -\def\argremovecomment#1\comment#2\relax{\toks0 = {#1}} - -% \argremovec{,omment} might leave us with trailing spaces, though; e.g., -% @end itemize @c foo -% will have two active spaces as part of the argument with the -% `itemize'. Here we remove all active spaces from #1, and assign the -% result to \toks0. -% -% This loses if there are any *other* active characters besides spaces -% in the argument -- _ ^ +, for example -- since they get expanded. -% Fortunately, Texinfo does not define any such commands. (If it ever -% does, the catcode of the characters in questionwill have to be changed -% here.) But this means we cannot call \removeactivespaces as part of -% \argremovec{,omment}, since @c uses \parsearg, and thus the argument -% that \parsearg gets might well have any character at all in it. -% -\def\removeactivespaces#1{% - \begingroup - \ignoreactivespaces - \edef\temp{#1}% - \global\toks0 = \expandafter{\temp}% - \endgroup -} - -% Change the active space to expand to nothing. -% -\begingroup - \obeyspaces - \gdef\ignoreactivespaces{\obeyspaces\let =\empty} -\endgroup - - -\def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next} - -%% These are used to keep @begin/@end levels from running away -%% Call \inENV within environments (after a \begingroup) -\newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi} -\def\ENVcheck{% -\ifENV\errmessage{Still within an environment. Type Return to continue.} -\endgroup\fi} % This is not perfect, but it should reduce lossage - -% @begin foo is the same as @foo, for now. -\newhelp\EMsimple{Type <Return> to continue.} - -\outer\def\begin{\parsearg\beginxxx} - -\def\beginxxx #1{% -\expandafter\ifx\csname #1\endcsname\relax -{\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else -\csname #1\endcsname\fi} - -% @end foo executes the definition of \Efoo. -% -\def\end{\parsearg\endxxx} -\def\endxxx #1{% - \removeactivespaces{#1}% - \edef\endthing{\the\toks0}% - % - \expandafter\ifx\csname E\endthing\endcsname\relax - \expandafter\ifx\csname \endthing\endcsname\relax - % There's no \foo, i.e., no ``environment'' foo. - \errhelp = \EMsimple - \errmessage{Undefined command `@end \endthing'}% - \else - \unmatchedenderror\endthing - \fi - \else - % Everything's ok; the right environment has been started. - \csname E\endthing\endcsname - \fi -} - -% There is an environment #1, but it hasn't been started. Give an error. -% -\def\unmatchedenderror#1{% - \errhelp = \EMsimple - \errmessage{This `@end #1' doesn't have a matching `@#1'}% -} - -% Define the control sequence \E#1 to give an unmatched @end error. -% -\def\defineunmatchedend#1{% - \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}% -} - - -% Single-spacing is done by various environments (specifically, in -% \nonfillstart and \quotations). -\newskip\singlespaceskip \singlespaceskip = 12.5pt -\def\singlespace{% - % Why was this kern here? It messes up equalizing space above and below - % environments. --karl, 6may93 - %{\advance \baselineskip by -\singlespaceskip - %\kern \baselineskip}% - \setleading \singlespaceskip -} - -%% Simple single-character @ commands - -% @@ prints an @ -% Kludge this until the fonts are right (grr). -\def\@{{\tt \char '100}} - -% This is turned off because it was never documented -% and you can use @w{...} around a quote to suppress ligatures. -%% Define @` and @' to be the same as ` and ' -%% but suppressing ligatures. -%\def\`{{`}} -%\def\'{{'}} - -% Used to generate quoted braces. - -\def\mylbrace {{\tt \char '173}} -\def\myrbrace {{\tt \char '175}} -\let\{=\mylbrace -\let\}=\myrbrace - -% @: forces normal size whitespace following. -\def\:{\spacefactor=1000 } - -% @* forces a line break. -\def\*{\hfil\break\hbox{}\ignorespaces} - -% @. is an end-of-sentence period. -\def\.{.\spacefactor=3000 } - -% @enddots{} is an end-of-sentence ellipsis. -\gdef\enddots{$\mathinner{\ldotp\ldotp\ldotp\ldotp}$\spacefactor=3000} - -% @! is an end-of-sentence bang. -\gdef\!{!\spacefactor=3000 } - -% @? is an end-of-sentence query. -\gdef\?{?\spacefactor=3000 } - -% @w prevents a word break. Without the \leavevmode, @w at the -% beginning of a paragraph, when TeX is still in vertical mode, would -% produce a whole line of output instead of starting the paragraph. -\def\w#1{\leavevmode\hbox{#1}} - -% @group ... @end group forces ... to be all on one page, by enclosing -% it in a TeX vbox. We use \vtop instead of \vbox to construct the box -% to keep its height that of a normal line. According to the rules for -% \topskip (p.114 of the TeXbook), the glue inserted is -% max (\topskip - \ht (first item), 0). If that height is large, -% therefore, no glue is inserted, and the space between the headline and -% the text is small, which looks bad. -% -\def\group{\begingroup - \ifnum\catcode13=\active \else - \errhelp = \groupinvalidhelp - \errmessage{@group invalid in context where filling is enabled}% - \fi - % - % The \vtop we start below produces a box with normal height and large - % depth; thus, TeX puts \baselineskip glue before it, and (when the - % next line of text is done) \lineskip glue after it. (See p.82 of - % the TeXbook.) Thus, space below is not quite equal to space - % above. But it's pretty close. - \def\Egroup{% - \egroup % End the \vtop. - \endgroup % End the \group. - }% - % - \vtop\bgroup - % We have to put a strut on the last line in case the @group is in - % the midst of an example, rather than completely enclosing it. - % Otherwise, the interline space between the last line of the group - % and the first line afterwards is too small. But we can't put the - % strut in \Egroup, since there it would be on a line by itself. - % Hence this just inserts a strut at the beginning of each line. - \everypar = {\strut}% - % - % Since we have a strut on every line, we don't need any of TeX's - % normal interline spacing. - \offinterlineskip - % - % OK, but now we have to do something about blank - % lines in the input in @example-like environments, which normally - % just turn into \lisppar, which will insert no space now that we've - % turned off the interline space. Simplest is to make them be an - % empty paragraph. - \ifx\par\lisppar - \edef\par{\leavevmode \par}% - % - % Reset ^^M's definition to new definition of \par. - \obeylines - \fi - % - % Do @comment since we are called inside an environment such as - % @example, where each end-of-line in the input causes an - % end-of-line in the output. We don't want the end-of-line after - % the `@group' to put extra space in the output. Since @group - % should appear on a line by itself (according to the Texinfo - % manual), we don't worry about eating any user text. - \comment -} -% -% TeX puts in an \escapechar (i.e., `@') at the beginning of the help -% message, so this ends up printing `@group can only ...'. -% -\newhelp\groupinvalidhelp{% -group can only be used in environments such as @example,^^J% -where each line of input produces a line of output.} - -% @need space-in-mils -% forces a page break if there is not space-in-mils remaining. - -\newdimen\mil \mil=0.001in - -\def\need{\parsearg\needx} - -% Old definition--didn't work. -%\def\needx #1{\par % -%% This method tries to make TeX break the page naturally -%% if the depth of the box does not fit. -%{\baselineskip=0pt% -%\vtop to #1\mil{\vfil}\kern -#1\mil\penalty 10000 -%\prevdepth=-1000pt -%}} - -\def\needx#1{% - % Go into vertical mode, so we don't make a big box in the middle of a - % paragraph. - \par - % - % Don't add any leading before our big empty box, but allow a page - % break, since the best break might be right here. - \allowbreak - \nointerlineskip - \vtop to #1\mil{\vfil}% - % - % TeX does not even consider page breaks if a penalty added to the - % main vertical list is 10000 or more. But in order to see if the - % empty box we just added fits on the page, we must make it consider - % page breaks. On the other hand, we don't want to actually break the - % page after the empty box. So we use a penalty of 9999. - % - % There is an extremely small chance that TeX will actually break the - % page at this \penalty, if there are no other feasible breakpoints in - % sight. (If the user is using lots of big @group commands, which - % almost-but-not-quite fill up a page, TeX will have a hard time doing - % good page breaking, for example.) However, I could not construct an - % example where a page broke at this \penalty; if it happens in a real - % document, then we can reconsider our strategy. - \penalty9999 - % - % Back up by the size of the box, whether we did a page break or not. - \kern -#1\mil - % - % Do not allow a page break right after this kern. - \nobreak -} - -% @br forces paragraph break - -\let\br = \par - -% @dots{} output some dots - -\def\dots{$\ldots$} - -% @page forces the start of a new page - -\def\page{\par\vfill\supereject} - -% @exdent text.... -% outputs text on separate line in roman font, starting at standard page margin - -% This records the amount of indent in the innermost environment. -% That's how much \exdent should take out. -\newskip\exdentamount - -% This defn is used inside fill environments such as @defun. -\def\exdent{\parsearg\exdentyyy} -\def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}} - -% This defn is used inside nofill environments such as @example. -\def\nofillexdent{\parsearg\nofillexdentyyy} -\def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount -\leftline{\hskip\leftskip{\rm#1}}}} - -%\hbox{{\rm#1}}\hfil\break}} - -% @include file insert text of that file as input. - -\def\include{\parsearg\includezzz} -%Use \input\thisfile to avoid blank after \input, which may be an active -%char (in which case the blank would become the \input argument). -%The grouping keeps the value of \thisfile correct even when @include -%is nested. -\def\includezzz #1{\begingroup -\def\thisfile{#1}\input\thisfile -\endgroup} - -\def\thisfile{} - -% @center line outputs that line, centered - -\def\center{\parsearg\centerzzz} -\def\centerzzz #1{{\advance\hsize by -\leftskip -\advance\hsize by -\rightskip -\centerline{#1}}} - -% @sp n outputs n lines of vertical space - -\def\sp{\parsearg\spxxx} -\def\spxxx #1{\par \vskip #1\baselineskip} - -% @comment ...line which is ignored... -% @c is the same as @comment -% @ignore ... @end ignore is another way to write a comment - -\def\comment{\catcode 64=\other \catcode 123=\other \catcode 125=\other% -\parsearg \commentxxx} - -\def\commentxxx #1{\catcode 64=0 \catcode 123=1 \catcode 125=2 } - -\let\c=\comment - -% Prevent errors for section commands. -% Used in @ignore and in failing conditionals. -\def\ignoresections{% -\let\chapter=\relax -\let\unnumbered=\relax -\let\top=\relax -\let\unnumberedsec=\relax -\let\unnumberedsection=\relax -\let\unnumberedsubsec=\relax -\let\unnumberedsubsection=\relax -\let\unnumberedsubsubsec=\relax -\let\unnumberedsubsubsection=\relax -\let\section=\relax -\let\subsec=\relax -\let\subsubsec=\relax -\let\subsection=\relax -\let\subsubsection=\relax -\let\appendix=\relax -\let\appendixsec=\relax -\let\appendixsection=\relax -\let\appendixsubsec=\relax -\let\appendixsubsection=\relax -\let\appendixsubsubsec=\relax -\let\appendixsubsubsection=\relax -\let\contents=\relax -\let\smallbook=\relax -\let\titlepage=\relax -} - -% Used in nested conditionals, where we have to parse the Texinfo source -% and so want to turn off most commands, in case they are used -% incorrectly. -% -\def\ignoremorecommands{% - \let\defcv = \relax - \let\deffn = \relax - \let\deffnx = \relax - \let\defindex = \relax - \let\defivar = \relax - \let\defmac = \relax - \let\defmethod = \relax - \let\defop = \relax - \let\defopt = \relax - \let\defspec = \relax - \let\deftp = \relax - \let\deftypefn = \relax - \let\deftypefun = \relax - \let\deftypevar = \relax - \let\deftypevr = \relax - \let\defun = \relax - \let\defvar = \relax - \let\defvr = \relax - \let\ref = \relax - \let\xref = \relax - \let\printindex = \relax - \let\pxref = \relax - \let\settitle = \relax - \let\include = \relax - \let\lowersections = \relax - \let\down = \relax - \let\raisesections = \relax - \let\up = \relax - \let\set = \relax - \let\clear = \relax - \let\item = \relax - \let\message = \relax -} - -% Ignore @ignore ... @end ignore. -% -\def\ignore{\doignore{ignore}} - -% Also ignore @ifinfo, @ifhtml, @html, @menu, and @direntry text. -% -\def\ifinfo{\doignore{ifinfo}} -\def\ifhtml{\doignore{ifhtml}} -\def\html{\doignore{html}} -\def\menu{\doignore{menu}} -\def\direntry{\doignore{direntry}} - -% Ignore text until a line `@end #1'. -% -\def\doignore#1{\begingroup - % Don't complain about control sequences we have declared \outer. - \ignoresections - % - % Define a command to swallow text until we reach `@end #1'. - \long\def\doignoretext##1\end #1{\enddoignore}% - % - % Make sure that spaces turn into tokens that match what \doignoretext wants. - \catcode32 = 10 - % - % And now expand that command. - \doignoretext -} - -% What we do to finish off ignored text. -% -\def\enddoignore{\endgroup\ignorespaces}% - -\newif\ifwarnedobs\warnedobsfalse -\def\obstexwarn{% - \ifwarnedobs\relax\else - % We need to warn folks that they may have trouble with TeX 3.0. - % This uses \immediate\write16 rather than \message to get newlines. - \immediate\write16{} - \immediate\write16{***WARNING*** for users of Unix TeX 3.0!} - \immediate\write16{This manual trips a bug in TeX version 3.0 (tex hangs).} - \immediate\write16{If you are running another version of TeX, relax.} - \immediate\write16{If you are running Unix TeX 3.0, kill this TeX process.} - \immediate\write16{ Then upgrade your TeX installation if you can.} - \immediate\write16{If you are stuck with version 3.0, run the} - \immediate\write16{ script ``tex3patch'' from the Texinfo distribution} - \immediate\write16{ to use a workaround.} - \immediate\write16{} - \warnedobstrue - \fi -} - -% **In TeX 3.0, setting text in \nullfont hangs tex. For a -% workaround (which requires the file ``dummy.tfm'' to be installed), -% uncomment the following line: -%%%%%\font\nullfont=dummy\let\obstexwarn=\relax - -% Ignore text, except that we keep track of conditional commands for -% purposes of nesting, up to an `@end #1' command. -% -\def\nestedignore#1{% - \obstexwarn - % We must actually expand the ignored text to look for the @end - % command, so that nested ignore constructs work. Thus, we put the - % text into a \vbox and then do nothing with the result. To minimize - % the change of memory overflow, we follow the approach outlined on - % page 401 of the TeXbook: make the current font be a dummy font. - % - \setbox0 = \vbox\bgroup - % Don't complain about control sequences we have declared \outer. - \ignoresections - % - % Define `@end #1' to end the box, which will in turn undefine the - % @end command again. - \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}% - % - % We are going to be parsing Texinfo commands. Most cause no - % trouble when they are used incorrectly, but some commands do - % complicated argument parsing or otherwise get confused, so we - % undefine them. - % - % We can't do anything about stray @-signs, unfortunately; - % they'll produce `undefined control sequence' errors. - \ignoremorecommands - % - % Set the current font to be \nullfont, a TeX primitive, and define - % all the font commands to also use \nullfont. We don't use - % dummy.tfm, as suggested in the TeXbook, because not all sites - % might have that installed. Therefore, math mode will still - % produce output, but that should be an extremely small amount of - % stuff compared to the main input. - % - \nullfont - \let\tenrm = \nullfont \let\tenit = \nullfont \let\tensl = \nullfont - \let\tenbf = \nullfont \let\tentt = \nullfont \let\smallcaps = \nullfont - \let\tensf = \nullfont - % Similarly for index fonts (mostly for their use in - % smallexample) - \let\indrm = \nullfont \let\indit = \nullfont \let\indsl = \nullfont - \let\indbf = \nullfont \let\indtt = \nullfont \let\indsc = \nullfont - \let\indsf = \nullfont - % - % Don't complain when characters are missing from the fonts. - \tracinglostchars = 0 - % - % Don't bother to do space factor calculations. - \frenchspacing - % - % Don't report underfull hboxes. - \hbadness = 10000 - % - % Do minimal line-breaking. - \pretolerance = 10000 - % - % Do not execute instructions in @tex - \def\tex{\doignore{tex}} -} - -% @set VAR sets the variable VAR to an empty value. -% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE. -% -% Since we want to separate VAR from REST-OF-LINE (which might be -% empty), we can't just use \parsearg; we have to insert a space of our -% own to delimit the rest of the line, and then take it out again if we -% didn't need it. -% -\def\set{\parsearg\setxxx} -\def\setxxx#1{\setyyy#1 \endsetyyy} -\def\setyyy#1 #2\endsetyyy{% - \def\temp{#2}% - \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty - \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted. - \fi -} -\def\setzzz#1#2 \endsetzzz{\expandafter\xdef\csname SET#1\endcsname{#2}} - -% @clear VAR clears (i.e., unsets) the variable VAR. -% -\def\clear{\parsearg\clearxxx} -\def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax} - -% @value{foo} gets the text saved in variable foo. -% -\def\value#1{\expandafter - \ifx\csname SET#1\endcsname\relax - {\{No value for ``#1''\}} - \else \csname SET#1\endcsname \fi} - -% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined -% with @set. -% -\def\ifset{\parsearg\ifsetxxx} -\def\ifsetxxx #1{% - \expandafter\ifx\csname SET#1\endcsname\relax - \expandafter\ifsetfail - \else - \expandafter\ifsetsucceed - \fi -} -\def\ifsetsucceed{\conditionalsucceed{ifset}} -\def\ifsetfail{\nestedignore{ifset}} -\defineunmatchedend{ifset} - -% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been -% defined with @set, or has been undefined with @clear. -% -\def\ifclear{\parsearg\ifclearxxx} -\def\ifclearxxx #1{% - \expandafter\ifx\csname SET#1\endcsname\relax - \expandafter\ifclearsucceed - \else - \expandafter\ifclearfail - \fi -} -\def\ifclearsucceed{\conditionalsucceed{ifclear}} -\def\ifclearfail{\nestedignore{ifclear}} -\defineunmatchedend{ifclear} - -% @iftex always succeeds; we read the text following, through @end -% iftex). But `@end iftex' should be valid only after an @iftex. -% -\def\iftex{\conditionalsucceed{iftex}} -\defineunmatchedend{iftex} - -% We can't just want to start a group at @iftex (for example) and end it -% at @end iftex, since then @set commands inside the conditional have no -% effect (they'd get reverted at the end of the group). So we must -% define \Eiftex to redefine itself to be its previous value. (We can't -% just define it to fail again with an ``unmatched end'' error, since -% the @ifset might be nested.) -% -\def\conditionalsucceed#1{% - \edef\temp{% - % Remember the current value of \E#1. - \let\nece{prevE#1} = \nece{E#1}% - % - % At the `@end #1', redefine \E#1 to be its previous value. - \def\nece{E#1}{\let\nece{E#1} = \nece{prevE#1}}% - }% - \temp -} - -% We need to expand lots of \csname's, but we don't want to expand the -% control sequences after we've constructed them. -% -\def\nece#1{\expandafter\noexpand\csname#1\endcsname} - -% @asis just yields its argument. Used with @table, for example. -% -\def\asis#1{#1} - -% @math means output in math mode. -% We don't use $'s directly in the definition of \math because control -% sequences like \math are expanded when the toc file is written. Then, -% we read the toc file back, the $'s will be normal characters (as they -% should be, according to the definition of Texinfo). So we must use a -% control sequence to switch into and out of math mode. -% -% This isn't quite enough for @math to work properly in indices, but it -% seems unlikely it will ever be needed there. -% -\let\implicitmath = $ -\def\math#1{\implicitmath #1\implicitmath} - -% @bullet and @minus need the same treatment as @math, just above. -\def\bullet{\implicitmath\ptexbullet\implicitmath} -\def\minus{\implicitmath-\implicitmath} - -\def\node{\ENVcheck\parsearg\nodezzz} -\def\nodezzz#1{\nodexxx [#1,]} -\def\nodexxx[#1,#2]{\gdef\lastnode{#1}} -\let\nwnode=\node -\let\lastnode=\relax - -\def\donoderef{\ifx\lastnode\relax\else -\expandafter\expandafter\expandafter\setref{\lastnode}\fi -\global\let\lastnode=\relax} - -\def\unnumbnoderef{\ifx\lastnode\relax\else -\expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi -\global\let\lastnode=\relax} - -\def\appendixnoderef{\ifx\lastnode\relax\else -\expandafter\expandafter\expandafter\appendixsetref{\lastnode}\fi -\global\let\lastnode=\relax} - -\let\refill=\relax - -% @setfilename is done at the beginning of every texinfo file. -% So open here the files we need to have open while reading the input. -% This makes it possible to make a .fmt file for texinfo. -\def\setfilename{% - \readauxfile - \opencontents - \openindices - \fixbackslash % Turn off hack to swallow `\input texinfo'. - \global\let\setfilename=\comment % Ignore extra @setfilename cmds. - \comment % Ignore the actual filename. -} - -\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend} - -\def\inforef #1{\inforefzzz #1,,,,**} -\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}}, - node \samp{\ignorespaces#1{}}} - -\message{fonts,} - -% Font-change commands. - -% Texinfo supports the sans serif font style, which plain TeX does not. -% So we set up a \sf analogous to plain's \rm, etc. -\newfam\sffam -\def\sf{\fam=\sffam \tensf} -\let\li = \sf % Sometimes we call it \li, not \sf. - -%% Try out Computer Modern fonts at \magstephalf -\let\mainmagstep=\magstephalf - -\ifx\bigger\relax -\let\mainmagstep=\magstep1 -\font\textrm=cmr12 -\font\texttt=cmtt12 -\else -\font\textrm=cmr10 scaled \mainmagstep -\font\texttt=cmtt10 scaled \mainmagstep -\fi -% Instead of cmb10, you many want to use cmbx10. -% cmbx10 is a prettier font on its own, but cmb10 -% looks better when embedded in a line with cmr10. -\font\textbf=cmb10 scaled \mainmagstep -\font\textit=cmti10 scaled \mainmagstep -\font\textsl=cmsl10 scaled \mainmagstep -\font\textsf=cmss10 scaled \mainmagstep -\font\textsc=cmcsc10 scaled \mainmagstep -\font\texti=cmmi10 scaled \mainmagstep -\font\textsy=cmsy10 scaled \mainmagstep - -% A few fonts for @defun, etc. -\font\defbf=cmbx10 scaled \magstep1 %was 1314 -\font\deftt=cmtt10 scaled \magstep1 -\def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf} - -% Fonts for indices and small examples. -% We actually use the slanted font rather than the italic, -% because texinfo normally uses the slanted fonts for that. -% Do not make many font distinctions in general in the index, since they -% aren't very useful. -\font\ninett=cmtt9 -\font\indrm=cmr9 -\font\indit=cmsl9 -\let\indsl=\indit -\let\indtt=\ninett -\let\indsf=\indrm -\let\indbf=\indrm -\let\indsc=\indrm -\font\indi=cmmi9 -\font\indsy=cmsy9 - -% Fonts for headings -\font\chaprm=cmbx12 scaled \magstep2 -\font\chapit=cmti12 scaled \magstep2 -\font\chapsl=cmsl12 scaled \magstep2 -\font\chaptt=cmtt12 scaled \magstep2 -\font\chapsf=cmss12 scaled \magstep2 -\let\chapbf=\chaprm -\font\chapsc=cmcsc10 scaled\magstep3 -\font\chapi=cmmi12 scaled \magstep2 -\font\chapsy=cmsy10 scaled \magstep3 - -\font\secrm=cmbx12 scaled \magstep1 -\font\secit=cmti12 scaled \magstep1 -\font\secsl=cmsl12 scaled \magstep1 -\font\sectt=cmtt12 scaled \magstep1 -\font\secsf=cmss12 scaled \magstep1 -\font\secbf=cmbx12 scaled \magstep1 -\font\secsc=cmcsc10 scaled\magstep2 -\font\seci=cmmi12 scaled \magstep1 -\font\secsy=cmsy10 scaled \magstep2 - -% \font\ssecrm=cmbx10 scaled \magstep1 % This size an font looked bad. -% \font\ssecit=cmti10 scaled \magstep1 % The letters were too crowded. -% \font\ssecsl=cmsl10 scaled \magstep1 -% \font\ssectt=cmtt10 scaled \magstep1 -% \font\ssecsf=cmss10 scaled \magstep1 - -%\font\ssecrm=cmb10 scaled 1315 % Note the use of cmb rather than cmbx. -%\font\ssecit=cmti10 scaled 1315 % Also, the size is a little larger than -%\font\ssecsl=cmsl10 scaled 1315 % being scaled magstep1. -%\font\ssectt=cmtt10 scaled 1315 -%\font\ssecsf=cmss10 scaled 1315 - -%\let\ssecbf=\ssecrm - -\font\ssecrm=cmbx12 scaled \magstephalf -\font\ssecit=cmti12 scaled \magstephalf -\font\ssecsl=cmsl12 scaled \magstephalf -\font\ssectt=cmtt12 scaled \magstephalf -\font\ssecsf=cmss12 scaled \magstephalf -\font\ssecbf=cmbx12 scaled \magstephalf -\font\ssecsc=cmcsc10 scaled \magstep1 -\font\sseci=cmmi12 scaled \magstephalf -\font\ssecsy=cmsy10 scaled \magstep1 -% The smallcaps and symbol fonts should actually be scaled \magstep1.5, -% but that is not a standard magnification. - -% Fonts for title page: -\font\titlerm = cmbx12 scaled \magstep3 -\let\authorrm = \secrm - -% In order for the font changes to affect most math symbols and letters, -% we have to define the \textfont of the standard families. Since -% texinfo doesn't allow for producing subscripts and superscripts, we -% don't bother to reset \scriptfont and \scriptscriptfont (which would -% also require loading a lot more fonts). -% -\def\resetmathfonts{% - \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy - \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf - \textfont\ttfam = \tentt \textfont\sffam = \tensf -} - - -% The font-changing commands redefine the meanings of \tenSTYLE, instead -% of just \STYLE. We do this so that font changes will continue to work -% in math mode, where it is the current \fam that is relevant in most -% cases, not the current. Plain TeX does, for example, -% \def\bf{\fam=\bffam \tenbf} By redefining \tenbf, we obviate the need -% to redefine \bf itself. -\def\textfonts{% - \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl - \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc - \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy - \resetmathfonts} -\def\chapfonts{% - \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl - \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc - \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy - \resetmathfonts} -\def\secfonts{% - \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl - \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc - \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy - \resetmathfonts} -\def\subsecfonts{% - \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl - \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc - \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy - \resetmathfonts} -\def\indexfonts{% - \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl - \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc - \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy - \resetmathfonts} - -% Set up the default fonts, so we can use them for creating boxes. -% -\textfonts - -% Count depth in font-changes, for error checks -\newcount\fontdepth \fontdepth=0 - -% Fonts for short table of contents. -\font\shortcontrm=cmr12 -\font\shortcontbf=cmbx12 -\font\shortcontsl=cmsl12 - -%% Add scribe-like font environments, plus @l for inline lisp (usually sans -%% serif) and @ii for TeX italic - -% \smartitalic{ARG} outputs arg in italics, followed by an italic correction -% unless the following character is such as not to need one. -\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi} -\def\smartitalic#1{{\sl #1}\futurelet\next\smartitalicx} - -\let\i=\smartitalic -\let\var=\smartitalic -\let\dfn=\smartitalic -\let\emph=\smartitalic -\let\cite=\smartitalic - -\def\b#1{{\bf #1}} -\let\strong=\b - -% We can't just use \exhyphenpenalty, because that only has effect at -% the end of a paragraph. Restore normal hyphenation at the end of the -% group within which \nohyphenation is presumably called. -% -\def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation} -\def\restorehyphenation{\hyphenchar\font = `- } - -\def\t#1{% - {\tt \nohyphenation \rawbackslash \frenchspacing #1}% - \null -} -\let\ttfont = \t -%\def\samp #1{`{\tt \rawbackslash \frenchspacing #1}'\null} -\def\samp #1{`\tclose{#1}'\null} -\def\key #1{{\tt \nohyphenation \uppercase{#1}}\null} -\def\ctrl #1{{\tt \rawbackslash \hat}#1} - -\let\file=\samp - -% @code is a modification of @t, -% which makes spaces the same size as normal in the surrounding text. -\def\tclose#1{% - {% - % Change normal interword space to be same as for the current font. - \spaceskip = \fontdimen2\font - % - % Switch to typewriter. - \tt - % - % But `\ ' produces the large typewriter interword space. - \def\ {{\spaceskip = 0pt{} }}% - % - % Turn off hyphenation. - \nohyphenation - % - \rawbackslash - \frenchspacing - #1% - }% - \null -} - -% We *must* turn on hyphenation at `-' and `_' in \code. -% Otherwise, it is too hard to avoid overful hboxes -% in the Emacs manual, the Library manual, etc. - -% Unfortunately, TeX uses one parameter (\hyphenchar) to control -% both hyphenation at - and hyphenation within words. -% We must therefore turn them both off (\tclose does that) -% and arrange explicitly to hyphenate an a dash. -% -- rms. -{ -\catcode`\-=\active -\catcode`\_=\active -\global\def\code{\begingroup \catcode`\-=\active \let-\codedash \catcode`\_=\active \let_\codeunder \codex} -% The following is used by \doprintindex to insure that long function names -% wrap around. It is necessary for - and _ to be active before the index is -% read from the file, as \entry parses the arguments long before \code is -% ever called. -- mycroft -\global\def\indexbreaks{\catcode`\-=\active \let-\realdash \catcode`\_=\active \let_\realunder} -} -\def\realdash{-} -\def\realunder{_} -\def\codedash{-\discretionary{}{}{}} -\def\codeunder{\normalunderscore\discretionary{}{}{}} -\def\codex #1{\tclose{#1}\endgroup} - -%\let\exp=\tclose %Was temporary - -% @kbd is like @code, except that if the argument is just one @key command, -% then @kbd has no effect. - -\def\xkey{\key} -\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}% -\ifx\one\xkey\ifx\threex\three \key{#2}% -\else\tclose{\look}\fi -\else\tclose{\look}\fi} - -% Typeset a dimension, e.g., `in' or `pt'. The only reason for the -% argument is to make the input look right: @dmn{pt} instead of -% @dmn{}pt. -% -\def\dmn#1{\thinspace #1} - -\def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par} - -\def\l#1{{\li #1}\null} % - -\def\r#1{{\rm #1}} % roman font -% Use of \lowercase was suggested. -\def\sc#1{{\smallcaps#1}} % smallcaps font -\def\ii#1{{\it #1}} % italic font - -\message{page headings,} - -\newskip\titlepagetopglue \titlepagetopglue = 1.5in -\newskip\titlepagebottomglue \titlepagebottomglue = 2pc - -% First the title page. Must do @settitle before @titlepage. -\def\titlefont#1{{\titlerm #1}} - -\newif\ifseenauthor -\newif\iffinishedtitlepage - -\def\shorttitlepage{\parsearg\shorttitlepagezzz} -\def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}% - \endgroup\page\hbox{}\page} - -\def\titlepage{\begingroup \parindent=0pt \textfonts - \let\subtitlerm=\tenrm -% I deinstalled the following change because \cmr12 is undefined. -% This change was not in the ChangeLog anyway. --rms. -% \let\subtitlerm=\cmr12 - \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}% - % - \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}% - % - % Leave some space at the very top of the page. - \vglue\titlepagetopglue - % - % Now you can print the title using @title. - \def\title{\parsearg\titlezzz}% - \def\titlezzz##1{\leftline{\titlefont{##1}} - % print a rule at the page bottom also. - \finishedtitlepagefalse - \vskip4pt \hrule height 4pt width \hsize \vskip4pt}% - % No rule at page bottom unless we print one at the top with @title. - \finishedtitlepagetrue - % - % Now you can put text using @subtitle. - \def\subtitle{\parsearg\subtitlezzz}% - \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}% - % - % @author should come last, but may come many times. - \def\author{\parsearg\authorzzz}% - \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi - {\authorfont \leftline{##1}}}% - % - % Most title ``pages'' are actually two pages long, with space - % at the top of the second. We don't want the ragged left on the second. - \let\oldpage = \page - \def\page{% - \iffinishedtitlepage\else - \finishtitlepage - \fi - \oldpage - \let\page = \oldpage - \hbox{}}% -% \def\page{\oldpage \hbox{}} -} - -\def\Etitlepage{% - \iffinishedtitlepage\else - \finishtitlepage - \fi - % It is important to do the page break before ending the group, - % because the headline and footline are only empty inside the group. - % If we use the new definition of \page, we always get a blank page - % after the title page, which we certainly don't want. - \oldpage - \endgroup - \HEADINGSon -} - -\def\finishtitlepage{% - \vskip4pt \hrule height 2pt width \hsize - \vskip\titlepagebottomglue - \finishedtitlepagetrue -} - -%%% Set up page headings and footings. - -\let\thispage=\folio - -\newtoks \evenheadline % Token sequence for heading line of even pages -\newtoks \oddheadline % Token sequence for heading line of odd pages -\newtoks \evenfootline % Token sequence for footing line of even pages -\newtoks \oddfootline % Token sequence for footing line of odd pages - -% Now make Tex use those variables -\headline={{\textfonts\rm \ifodd\pageno \the\oddheadline - \else \the\evenheadline \fi}} -\footline={{\textfonts\rm \ifodd\pageno \the\oddfootline - \else \the\evenfootline \fi}\HEADINGShook} -\let\HEADINGShook=\relax - -% Commands to set those variables. -% For example, this is what @headings on does -% @evenheading @thistitle|@thispage|@thischapter -% @oddheading @thischapter|@thispage|@thistitle -% @evenfooting @thisfile|| -% @oddfooting ||@thisfile - -\def\evenheading{\parsearg\evenheadingxxx} -\def\oddheading{\parsearg\oddheadingxxx} -\def\everyheading{\parsearg\everyheadingxxx} - -\def\evenfooting{\parsearg\evenfootingxxx} -\def\oddfooting{\parsearg\oddfootingxxx} -\def\everyfooting{\parsearg\everyfootingxxx} - -{\catcode`\@=0 % - -\gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish} -\gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{% -\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish} -\gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{% -\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\everyheadingxxx #1{\everyheadingyyy #1@|@|@|@|\finish} -\gdef\everyheadingyyy #1@|#2@|#3@|#4\finish{% -\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}} -\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish} -\gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{% -\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish} -\gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{% -\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\everyfootingxxx #1{\everyfootingyyy #1@|@|@|@|\finish} -\gdef\everyfootingyyy #1@|#2@|#3@|#4\finish{% -\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}} -\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} -% -}% unbind the catcode of @. - -% @headings double turns headings on for double-sided printing. -% @headings single turns headings on for single-sided printing. -% @headings off turns them off. -% @headings on same as @headings double, retained for compatibility. -% @headings after turns on double-sided headings after this page. -% @headings doubleafter turns on double-sided headings after this page. -% @headings singleafter turns on single-sided headings after this page. -% By default, they are off. - -\def\headings #1 {\csname HEADINGS#1\endcsname} - -\def\HEADINGSoff{ -\global\evenheadline={\hfil} \global\evenfootline={\hfil} -\global\oddheadline={\hfil} \global\oddfootline={\hfil}} -\HEADINGSoff -% When we turn headings on, set the page number to 1. -% For double-sided printing, put current file name in lower left corner, -% chapter name on inside top of right hand pages, document -% title on inside top of left hand pages, and page numbers on outside top -% edge of all pages. -\def\HEADINGSdouble{ -%\pagealignmacro -\global\pageno=1 -\global\evenfootline={\hfil} -\global\oddfootline={\hfil} -\global\evenheadline={\line{\folio\hfil\thistitle}} -\global\oddheadline={\line{\thischapter\hfil\folio}} -} -% For single-sided printing, chapter title goes across top left of page, -% page number on top right. -\def\HEADINGSsingle{ -%\pagealignmacro -\global\pageno=1 -\global\evenfootline={\hfil} -\global\oddfootline={\hfil} -\global\evenheadline={\line{\thischapter\hfil\folio}} -\global\oddheadline={\line{\thischapter\hfil\folio}} -} -\def\HEADINGSon{\HEADINGSdouble} - -\def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex} -\let\HEADINGSdoubleafter=\HEADINGSafter -\def\HEADINGSdoublex{% -\global\evenfootline={\hfil} -\global\oddfootline={\hfil} -\global\evenheadline={\line{\folio\hfil\thistitle}} -\global\oddheadline={\line{\thischapter\hfil\folio}} -} - -\def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex} -\def\HEADINGSsinglex{% -\global\evenfootline={\hfil} -\global\oddfootline={\hfil} -\global\evenheadline={\line{\thischapter\hfil\folio}} -\global\oddheadline={\line{\thischapter\hfil\folio}} -} - -% Subroutines used in generating headings -% Produces Day Month Year style of output. -\def\today{\number\day\space -\ifcase\month\or -January\or February\or March\or April\or May\or June\or -July\or August\or September\or October\or November\or December\fi -\space\number\year} - -% Use this if you want the Month Day, Year style of output. -%\def\today{\ifcase\month\or -%January\or February\or March\or April\or May\or June\or -%July\or August\or September\or October\or November\or December\fi -%\space\number\day, \number\year} - -% @settitle line... specifies the title of the document, for headings -% It generates no output of its own - -\def\thistitle{No Title} -\def\settitle{\parsearg\settitlezzz} -\def\settitlezzz #1{\gdef\thistitle{#1}} - -\message{tables,} - -% @tabs -- simple alignment - -% These don't work. For one thing, \+ is defined as outer. -% So these macros cannot even be defined. - -%\def\tabs{\parsearg\tabszzz} -%\def\tabszzz #1{\settabs\+#1\cr} -%\def\tabline{\parsearg\tablinezzz} -%\def\tablinezzz #1{\+#1\cr} -%\def\&{&} - -% Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x). - -% default indentation of table text -\newdimen\tableindent \tableindent=.8in -% default indentation of @itemize and @enumerate text -\newdimen\itemindent \itemindent=.3in -% margin between end of table item and start of table text. -\newdimen\itemmargin \itemmargin=.1in - -% used internally for \itemindent minus \itemmargin -\newdimen\itemmax - -% Note @table, @vtable, and @vtable define @item, @itemx, etc., with -% these defs. -% They also define \itemindex -% to index the item name in whatever manner is desired (perhaps none). - -\newif\ifitemxneedsnegativevskip - -\def\itemxpar{\par\ifitemxneedsnegativevskip\vskip-\parskip\nobreak\fi} - -\def\internalBitem{\smallbreak \parsearg\itemzzz} -\def\internalBitemx{\itemxpar \parsearg\itemzzz} - -\def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz} -\def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz} - -\def\internalBkitem{\smallbreak \parsearg\kitemzzz} -\def\internalBkitemx{\itemxpar \parsearg\kitemzzz} - -\def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}% - \itemzzz {#1}} - -\def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}% - \itemzzz {#1}} - -\def\itemzzz #1{\begingroup % - \advance\hsize by -\rightskip - \advance\hsize by -\tableindent - \setbox0=\hbox{\itemfont{#1}}% - \itemindex{#1}% - \nobreak % This prevents a break before @itemx. - % - % Be sure we are not still in the middle of a paragraph. - %{\parskip = 0in - %\par - %}% - % - % If the item text does not fit in the space we have, put it on a line - % by itself, and do not allow a page break either before or after that - % line. We do not start a paragraph here because then if the next - % command is, e.g., @kindex, the whatsit would get put into the - % horizontal list on a line by itself, resulting in extra blank space. - \ifdim \wd0>\itemmax - % - % Make this a paragraph so we get the \parskip glue and wrapping, - % but leave it ragged-right. - \begingroup - \advance\leftskip by-\tableindent - \advance\hsize by\tableindent - \advance\rightskip by0pt plus1fil - \leavevmode\unhbox0\par - \endgroup - % - % We're going to be starting a paragraph, but we don't want the - % \parskip glue -- logically it's part of the @item we just started. - \nobreak \vskip-\parskip - % - % Stop a page break at the \parskip glue coming up. Unfortunately - % we can't prevent a possible page break at the following - % \baselineskip glue. - \nobreak - \endgroup - \itemxneedsnegativevskipfalse - \else - % The item text fits into the space. Start a paragraph, so that the - % following text (if any) will end up on the same line. Since that - % text will be indented by \tableindent, we make the item text be in - % a zero-width box. - \noindent - \rlap{\hskip -\tableindent\box0}\ignorespaces% - \endgroup% - \itemxneedsnegativevskiptrue% - \fi -} - -\def\item{\errmessage{@item while not in a table}} -\def\itemx{\errmessage{@itemx while not in a table}} -\def\kitem{\errmessage{@kitem while not in a table}} -\def\kitemx{\errmessage{@kitemx while not in a table}} -\def\xitem{\errmessage{@xitem while not in a table}} -\def\xitemx{\errmessage{@xitemx while not in a table}} - -%% Contains a kludge to get @end[description] to work -\def\description{\tablez{\dontindex}{1}{}{}{}{}} - -\def\table{\begingroup\inENV\obeylines\obeyspaces\tablex} -{\obeylines\obeyspaces% -\gdef\tablex #1^^M{% -\tabley\dontindex#1 \endtabley}} - -\def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex} -{\obeylines\obeyspaces% -\gdef\ftablex #1^^M{% -\tabley\fnitemindex#1 \endtabley -\def\Eftable{\endgraf\afterenvbreak\endgroup}% -\let\Etable=\relax}} - -\def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex} -{\obeylines\obeyspaces% -\gdef\vtablex #1^^M{% -\tabley\vritemindex#1 \endtabley -\def\Evtable{\endgraf\afterenvbreak\endgroup}% -\let\Etable=\relax}} - -\def\dontindex #1{} -\def\fnitemindex #1{\doind {fn}{\code{#1}}}% -\def\vritemindex #1{\doind {vr}{\code{#1}}}% - -{\obeyspaces % -\gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup% -\tablez{#1}{#2}{#3}{#4}{#5}{#6}}} - -\def\tablez #1#2#3#4#5#6{% -\aboveenvbreak % -\begingroup % -\def\Edescription{\Etable}% Neccessary kludge. -\let\itemindex=#1% -\ifnum 0#3>0 \advance \leftskip by #3\mil \fi % -\ifnum 0#4>0 \tableindent=#4\mil \fi % -\ifnum 0#5>0 \advance \rightskip by #5\mil \fi % -\def\itemfont{#2}% -\itemmax=\tableindent % -\advance \itemmax by -\itemmargin % -\advance \leftskip by \tableindent % -\exdentamount=\tableindent -\parindent = 0pt -\parskip = \smallskipamount -\ifdim \parskip=0pt \parskip=2pt \fi% -\def\Etable{\endgraf\afterenvbreak\endgroup}% -\let\item = \internalBitem % -\let\itemx = \internalBitemx % -\let\kitem = \internalBkitem % -\let\kitemx = \internalBkitemx % -\let\xitem = \internalBxitem % -\let\xitemx = \internalBxitemx % -} - -% This is the counter used by @enumerate, which is really @itemize - -\newcount \itemno - -\def\itemize{\parsearg\itemizezzz} - -\def\itemizezzz #1{% - \begingroup % ended by the @end itemsize - \itemizey {#1}{\Eitemize} -} - -\def\itemizey #1#2{% -\aboveenvbreak % -\itemmax=\itemindent % -\advance \itemmax by -\itemmargin % -\advance \leftskip by \itemindent % -\exdentamount=\itemindent -\parindent = 0pt % -\parskip = \smallskipamount % -\ifdim \parskip=0pt \parskip=2pt \fi% -\def#2{\endgraf\afterenvbreak\endgroup}% -\def\itemcontents{#1}% -\let\item=\itemizeitem} - -% Set sfcode to normal for the chars that usually have another value. -% These are `.?!:;,' -\def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000 - \sfcode58=1000 \sfcode59=1000 \sfcode44=1000 } - -% \splitoff TOKENS\endmark defines \first to be the first token in -% TOKENS, and \rest to be the remainder. -% -\def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}% - -% Allow an optional argument of an uppercase letter, lowercase letter, -% or number, to specify the first label in the enumerated list. No -% argument is the same as `1'. -% -\def\enumerate{\parsearg\enumeratezzz} -\def\enumeratezzz #1{\enumeratey #1 \endenumeratey} -\def\enumeratey #1 #2\endenumeratey{% - \begingroup % ended by the @end enumerate - % - % If we were given no argument, pretend we were given `1'. - \def\thearg{#1}% - \ifx\thearg\empty \def\thearg{1}\fi - % - % Detect if the argument is a single token. If so, it might be a - % letter. Otherwise, the only valid thing it can be is a number. - % (We will always have one token, because of the test we just made. - % This is a good thing, since \splitoff doesn't work given nothing at - % all -- the first parameter is undelimited.) - \expandafter\splitoff\thearg\endmark - \ifx\rest\empty - % Only one token in the argument. It could still be anything. - % A ``lowercase letter'' is one whose \lccode is nonzero. - % An ``uppercase letter'' is one whose \lccode is both nonzero, and - % not equal to itself. - % Otherwise, we assume it's a number. - % - % We need the \relax at the end of the \ifnum lines to stop TeX from - % continuing to look for a <number>. - % - \ifnum\lccode\expandafter`\thearg=0\relax - \numericenumerate % a number (we hope) - \else - % It's a letter. - \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax - \lowercaseenumerate % lowercase letter - \else - \uppercaseenumerate % uppercase letter - \fi - \fi - \else - % Multiple tokens in the argument. We hope it's a number. - \numericenumerate - \fi -} - -% An @enumerate whose labels are integers. The starting integer is -% given in \thearg. -% -\def\numericenumerate{% - \itemno = \thearg - \startenumeration{\the\itemno}% -} - -% The starting (lowercase) letter is in \thearg. -\def\lowercaseenumerate{% - \itemno = \expandafter`\thearg - \startenumeration{% - % Be sure we're not beyond the end of the alphabet. - \ifnum\itemno=0 - \errmessage{No more lowercase letters in @enumerate; get a bigger - alphabet}% - \fi - \char\lccode\itemno - }% -} - -% The starting (uppercase) letter is in \thearg. -\def\uppercaseenumerate{% - \itemno = \expandafter`\thearg - \startenumeration{% - % Be sure we're not beyond the end of the alphabet. - \ifnum\itemno=0 - \errmessage{No more uppercase letters in @enumerate; get a bigger - alphabet} - \fi - \char\uccode\itemno - }% -} - -% Call itemizey, adding a period to the first argument and supplying the -% common last two arguments. Also subtract one from the initial value in -% \itemno, since @item increments \itemno. -% -\def\startenumeration#1{% - \advance\itemno by -1 - \itemizey{#1.}\Eenumerate\flushcr -} - -% @alphaenumerate and @capsenumerate are abbreviations for giving an arg -% to @enumerate. -% -\def\alphaenumerate{\enumerate{a}} -\def\capsenumerate{\enumerate{A}} -\def\Ealphaenumerate{\Eenumerate} -\def\Ecapsenumerate{\Eenumerate} - -% Definition of @item while inside @itemize. - -\def\itemizeitem{% -\advance\itemno by 1 -{\let\par=\endgraf \smallbreak}% -\ifhmode \errmessage{\in hmode at itemizeitem}\fi -{\parskip=0in \hskip 0pt -\hbox to 0pt{\hss \itemcontents\hskip \itemmargin}% -\vadjust{\penalty 1200}}% -\flushcr} - -% @multitable macros -% Amy Hendrickson, 8/18/94 -% -% @multitable ... @endmultitable will make as many columns as desired. -% Contents of each column will wrap at width given in preamble. Width -% can be specified either with sample text given in a template line, -% or in percent of \hsize, the current width of text on page. - -% Table can continue over pages but will only break between lines. - -% To make preamble: -% -% Either define widths of columns in terms of percent of \hsize: -% @multitable @percentofhsize .2 .3 .5 -% @item ... -% -% Numbers following @percentofhsize are the percent of the total -% current hsize to be used for each column. You may use as many -% columns as desired. - -% Or use a template: -% @multitable {Column 1 template} {Column 2 template} {Column 3 template} -% @item ... -% using the widest term desired in each column. - - -% Each new table line starts with @item, each subsequent new column -% starts with @tab. Empty columns may be produced by supplying @tab's -% with nothing between them for as many times as empty columns are needed, -% ie, @tab@tab@tab will produce two empty columns. - -% @item, @tab, @multicolumn or @endmulticolumn do not need to be on their -% own lines, but it will not hurt if they are. - -% Sample multitable: - -% @multitable {Column 1 template} {Column 2 template} {Column 3 template} -% @item first col stuff @tab second col stuff @tab third col -% @item -% first col stuff -% @tab -% second col stuff -% @tab -% third col -% @item first col stuff @tab second col stuff -% @tab Many paragraphs of text may be used in any column. -% -% They will wrap at the width determined by the template. -% @item@tab@tab This will be in third column. -% @endmultitable - -% Default dimensions may be reset by user. -% @intableparskip will set vertical space between paragraphs in table. -% @intableparindent will set paragraph indent in table. -% @spacebetweencols will set horizontal space to be left between columns. -% @spacebetweenlines will set vertical space to be left between lines. - -%%%% -% Dimensions - -\newdimen\intableparskip -\newdimen\intableparindent -\newdimen\spacebetweencols -\newdimen\spacebetweenlines -\intableparskip=0pt -\intableparindent=6pt -\spacebetweencols=12pt -\spacebetweenlines=12pt - -%%%% -% Macros used to set up halign preamble: -\let\endsetuptable\relax -\def\xendsetuptable{\endsetuptable} -\let\percentofhsize\relax -\def\xpercentofhsize{\percentofhsize} -\newif\ifsetpercent - -\newcount\colcount -\def\setuptable#1{\def\firstarg{#1}% -\ifx\firstarg\xendsetuptable\let\go\relax% -\else - \ifx\firstarg\xpercentofhsize\global\setpercenttrue% - \else - \ifsetpercent - \if#1.\else% - \global\advance\colcount by1 % - \expandafter\xdef\csname col\the\colcount\endcsname{.#1\hsize}% - \fi - \else - \global\advance\colcount by1 - \setbox0=\hbox{#1}% - \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}% - \fi% - \fi% - \let\go\setuptable% -\fi\go} -%%%% -% multitable syntax -\def\tab{&} - -%%%% -% @multitable ... @endmultitable definitions: - -\def\multitable#1\item{\bgroup -\let\item\cr -\tolerance=9500 -\hbadness=9500 -\parskip=\intableparskip -\parindent=\intableparindent -\overfullrule=0pt -\global\colcount=0\relax% -\def\Emultitable{\global\setpercentfalse\global\everycr{}\cr\egroup\egroup}% - % To parse everything between @multitable and @item : -\def\one{#1}\expandafter\setuptable\one\endsetuptable - % Need to reset this to 0 after \setuptable. -\global\colcount=0\relax% - % - % This preamble sets up a generic column definition, which will - % be used as many times as user calls for columns. - % \vtop will set a single line and will also let text wrap and - % continue for many paragraphs if desired. -\halign\bgroup&\global\advance\colcount by 1\relax% -\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname - % In order to keep entries from bumping into each other - % we will add a \leftskip of \spacebetweencols to all columns after - % the first one. - % If a template has been used, we will add \spacebetweencols - % to the width of each template entry. - % If user has set preamble in terms of percent of \hsize - % we will use that dimension as the width of the column, and - % the \leftskip will keep entries from bumping into each other. - % Table will start at left margin and final column will justify at - % right margin. -\ifnum\colcount=1 -\else - \ifsetpercent - \else - % If user has <not> set preamble in terms of percent of \hsize - % we will advance \hsize by \spacebetweencols - \advance\hsize by \spacebetweencols - \fi - % In either case we will make \leftskip=\spacebetweencols: -\leftskip=\spacebetweencols -\fi -\noindent##}\cr% - % \everycr will reset column counter, \colcount, at the end of - % each line. Every column entry will cause \colcount to advance by one. - % The table preamble - % looks at the current \colcount to find the correct column width. -\global\everycr{\noalign{\nointerlineskip\vskip\spacebetweenlines -\filbreak%% keeps underfull box messages off when table breaks over pages. -\global\colcount=0\relax}}} - -\message{indexing,} -% Index generation facilities - -% Define \newwrite to be identical to plain tex's \newwrite -% except not \outer, so it can be used within \newindex. -{\catcode`\@=11 -\gdef\newwrite{\alloc@7\write\chardef\sixt@@n}} - -% \newindex {foo} defines an index named foo. -% It automatically defines \fooindex such that -% \fooindex ...rest of line... puts an entry in the index foo. -% It also defines \fooindfile to be the number of the output channel for -% the file that accumulates this index. The file's extension is foo. -% The name of an index should be no more than 2 characters long -% for the sake of vms. - -\def\newindex #1{ -\expandafter\newwrite \csname#1indfile\endcsname% Define number for output file -\openout \csname#1indfile\endcsname \jobname.#1 % Open the file -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\doindex {#1}} -} - -% @defindex foo == \newindex{foo} - -\def\defindex{\parsearg\newindex} - -% Define @defcodeindex, like @defindex except put all entries in @code. - -\def\newcodeindex #1{ -\expandafter\newwrite \csname#1indfile\endcsname% Define number for output file -\openout \csname#1indfile\endcsname \jobname.#1 % Open the file -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\docodeindex {#1}} -} - -\def\defcodeindex{\parsearg\newcodeindex} - -% @synindex foo bar makes index foo feed into index bar. -% Do this instead of @defindex foo if you don't want it as a separate index. -\def\synindex #1 #2 {% -\expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname -\expandafter\let\csname#1indfile\endcsname=\synindexfoo -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\doindex {#2}}% -} - -% @syncodeindex foo bar similar, but put all entries made for index foo -% inside @code. -\def\syncodeindex #1 #2 {% -\expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname -\expandafter\let\csname#1indfile\endcsname=\synindexfoo -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\docodeindex {#2}}% -} - -% Define \doindex, the driver for all \fooindex macros. -% Argument #1 is generated by the calling \fooindex macro, -% and it is "foo", the name of the index. - -% \doindex just uses \parsearg; it calls \doind for the actual work. -% This is because \doind is more useful to call from other macros. - -% There is also \dosubind {index}{topic}{subtopic} -% which makes an entry in a two-level index such as the operation index. - -\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer} -\def\singleindexer #1{\doind{\indexname}{#1}} - -% like the previous two, but they put @code around the argument. -\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer} -\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}} - -\def\indexdummies{% -% Take care of the plain tex accent commands. -\def\"{\realbackslash "}% -\def\`{\realbackslash `}% -\def\'{\realbackslash '}% -\def\^{\realbackslash ^}% -\def\~{\realbackslash ~}% -\def\={\realbackslash =}% -\def\b{\realbackslash b}% -\def\c{\realbackslash c}% -\def\d{\realbackslash d}% -\def\u{\realbackslash u}% -\def\v{\realbackslash v}% -\def\H{\realbackslash H}% -% Take care of the plain tex special European modified letters. -\def\oe{\realbackslash oe}% -\def\ae{\realbackslash ae}% -\def\aa{\realbackslash aa}% -\def\OE{\realbackslash OE}% -\def\AE{\realbackslash AE}% -\def\AA{\realbackslash AA}% -\def\o{\realbackslash o}% -\def\O{\realbackslash O}% -\def\l{\realbackslash l}% -\def\L{\realbackslash L}% -\def\ss{\realbackslash ss}% -% Take care of texinfo commands likely to appear in an index entry. -\def\_{{\realbackslash _}}% -\def\w{\realbackslash w }% -\def\bf{\realbackslash bf }% -\def\rm{\realbackslash rm }% -\def\sl{\realbackslash sl }% -\def\sf{\realbackslash sf}% -\def\tt{\realbackslash tt}% -\def\gtr{\realbackslash gtr}% -\def\less{\realbackslash less}% -\def\hat{\realbackslash hat}% -\def\char{\realbackslash char}% -\def\TeX{\realbackslash TeX}% -\def\dots{\realbackslash dots }% -\def\copyright{\realbackslash copyright }% -\def\tclose##1{\realbackslash tclose {##1}}% -\def\code##1{\realbackslash code {##1}}% -\def\samp##1{\realbackslash samp {##1}}% -\def\t##1{\realbackslash r {##1}}% -\def\r##1{\realbackslash r {##1}}% -\def\i##1{\realbackslash i {##1}}% -\def\b##1{\realbackslash b {##1}}% -\def\cite##1{\realbackslash cite {##1}}% -\def\key##1{\realbackslash key {##1}}% -\def\file##1{\realbackslash file {##1}}% -\def\var##1{\realbackslash var {##1}}% -\def\kbd##1{\realbackslash kbd {##1}}% -\def\dfn##1{\realbackslash dfn {##1}}% -\def\emph##1{\realbackslash emph {##1}}% -} - -% \indexnofonts no-ops all font-change commands. -% This is used when outputting the strings to sort the index by. -\def\indexdummyfont#1{#1} -\def\indexdummytex{TeX} -\def\indexdummydots{...} - -\def\indexnofonts{% -% Just ignore accents. -\let\"=\indexdummyfont -\let\`=\indexdummyfont -\let\'=\indexdummyfont -\let\^=\indexdummyfont -\let\~=\indexdummyfont -\let\==\indexdummyfont -\let\b=\indexdummyfont -\let\c=\indexdummyfont -\let\d=\indexdummyfont -\let\u=\indexdummyfont -\let\v=\indexdummyfont -\let\H=\indexdummyfont -% Take care of the plain tex special European modified letters. -\def\oe{oe}% -\def\ae{ae}% -\def\aa{aa}% -\def\OE{OE}% -\def\AE{AE}% -\def\AA{AA}% -\def\o{o}% -\def\O{O}% -\def\l{l}% -\def\L{L}% -\def\ss{ss}% -\let\w=\indexdummyfont -\let\t=\indexdummyfont -\let\r=\indexdummyfont -\let\i=\indexdummyfont -\let\b=\indexdummyfont -\let\emph=\indexdummyfont -\let\strong=\indexdummyfont -\let\cite=\indexdummyfont -\let\sc=\indexdummyfont -%Don't no-op \tt, since it isn't a user-level command -% and is used in the definitions of the active chars like <, >, |... -%\let\tt=\indexdummyfont -\let\tclose=\indexdummyfont -\let\code=\indexdummyfont -\let\file=\indexdummyfont -\let\samp=\indexdummyfont -\let\kbd=\indexdummyfont -\let\key=\indexdummyfont -\let\var=\indexdummyfont -\let\TeX=\indexdummytex -\let\dots=\indexdummydots -} - -% To define \realbackslash, we must make \ not be an escape. -% We must first make another character (@) an escape -% so we do not become unable to do a definition. - -{\catcode`\@=0 \catcode`\\=\other -@gdef@realbackslash{\}} - -\let\indexbackslash=0 %overridden during \printindex. - -\def\doind #1#2{% -{\count10=\lastpenalty % -{\indexdummies % Must do this here, since \bf, etc expand at this stage -\escapechar=`\\% -{\let\folio=0% Expand all macros now EXCEPT \folio -\def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now -% so it will be output as is; and it will print as backslash in the indx. -% -% Now process the index-string once, with all font commands turned off, -% to get the string to sort the index by. -{\indexnofonts -\xdef\temp1{#2}% -}% -% Now produce the complete index entry. We process the index-string again, -% this time with font commands expanded, to get what to print in the index. -\edef\temp{% -\write \csname#1indfile\endcsname{% -\realbackslash entry {\temp1}{\folio}{#2}}}% -\temp }% -}\penalty\count10}} - -\def\dosubind #1#2#3{% -{\count10=\lastpenalty % -{\indexdummies % Must do this here, since \bf, etc expand at this stage -\escapechar=`\\% -{\let\folio=0% -\def\rawbackslashxx{\indexbackslash}% -% -% Now process the index-string once, with all font commands turned off, -% to get the string to sort the index by. -{\indexnofonts -\xdef\temp1{#2 #3}% -}% -% Now produce the complete index entry. We process the index-string again, -% this time with font commands expanded, to get what to print in the index. -\edef\temp{% -\write \csname#1indfile\endcsname{% -\realbackslash entry {\temp1}{\folio}{#2}{#3}}}% -\temp }% -}\penalty\count10}} - -% The index entry written in the file actually looks like -% \entry {sortstring}{page}{topic} -% or -% \entry {sortstring}{page}{topic}{subtopic} -% The texindex program reads in these files and writes files -% containing these kinds of lines: -% \initial {c} -% before the first topic whose initial is c -% \entry {topic}{pagelist} -% for a topic that is used without subtopics -% \primary {topic} -% for the beginning of a topic that is used with subtopics -% \secondary {subtopic}{pagelist} -% for each subtopic. - -% Define the user-accessible indexing commands -% @findex, @vindex, @kindex, @cindex. - -\def\findex {\fnindex} -\def\kindex {\kyindex} -\def\cindex {\cpindex} -\def\vindex {\vrindex} -\def\tindex {\tpindex} -\def\pindex {\pgindex} - -\def\cindexsub {\begingroup\obeylines\cindexsub} -{\obeylines % -\gdef\cindexsub "#1" #2^^M{\endgroup % -\dosubind{cp}{#2}{#1}}} - -% Define the macros used in formatting output of the sorted index material. - -% This is what you call to cause a particular index to get printed. -% Write -% @unnumbered Function Index -% @printindex fn - -\def\printindex{\parsearg\doprintindex} - -\def\doprintindex#1{% - \tex - \dobreak \chapheadingskip {10000} - \catcode`\%=\other\catcode`\&=\other\catcode`\#=\other - \catcode`\$=\other - \catcode`\~=\other - \indexbreaks - % - % The following don't help, since the chars were translated - % when the raw index was written, and their fonts were discarded - % due to \indexnofonts. - %\catcode`\"=\active - %\catcode`\^=\active - %\catcode`\_=\active - %\catcode`\|=\active - %\catcode`\<=\active - %\catcode`\>=\active - % % - \def\indexbackslash{\rawbackslashxx} - \indexfonts\rm \tolerance=9500 \advance\baselineskip -1pt - \begindoublecolumns - % - % See if the index file exists and is nonempty. - \openin 1 \jobname.#1s - \ifeof 1 - % \enddoublecolumns gets confused if there is no text in the index, - % and it loses the chapter title and the aux file entries for the - % index. The easiest way to prevent this problem is to make sure - % there is some text. - (Index is nonexistent) - \else - % - % If the index file exists but is empty, then \openin leaves \ifeof - % false. We have to make TeX try to read something from the file, so - % it can discover if there is anything in it. - \read 1 to \temp - \ifeof 1 - (Index is empty) - \else - \input \jobname.#1s - \fi - \fi - \closein 1 - \enddoublecolumns - \Etex -} - -% These macros are used by the sorted index file itself. -% Change them to control the appearance of the index. - -% Same as \bigskipamount except no shrink. -% \balancecolumns gets confused if there is any shrink. -\newskip\initialskipamount \initialskipamount 12pt plus4pt - -\def\initial #1{% -{\let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt -\ifdim\lastskip<\initialskipamount -\removelastskip \penalty-200 \vskip \initialskipamount\fi -\line{\secbf#1\hfill}\kern 2pt\penalty10000}} - -% This typesets a paragraph consisting of #1, dot leaders, and then #2 -% flush to the right margin. It is used for index and table of contents -% entries. The paragraph is indented by \leftskip. -% -\def\entry #1#2{\begingroup - % - % Start a new paragraph if necessary, so our assignments below can't - % affect previous text. - \par - % - % Do not fill out the last line with white space. - \parfillskip = 0in - % - % No extra space above this paragraph. - \parskip = 0in - % - % Do not prefer a separate line ending with a hyphen to fewer lines. - \finalhyphendemerits = 0 - % - % \hangindent is only relevant when the entry text and page number - % don't both fit on one line. In that case, bob suggests starting the - % dots pretty far over on the line. Unfortunately, a large - % indentation looks wrong when the entry text itself is broken across - % lines. So we use a small indentation and put up with long leaders. - % - % \hangafter is reset to 1 (which is the value we want) at the start - % of each paragraph, so we need not do anything with that. - \hangindent=2em - % - % When the entry text needs to be broken, just fill out the first line - % with blank space. - \rightskip = 0pt plus1fil - % - % Start a ``paragraph'' for the index entry so the line breaking - % parameters we've set above will have an effect. - \noindent - % - % Insert the text of the index entry. TeX will do line-breaking on it. - #1% - % The following is kluged to not output a line of dots in the index if - % there are no page numbers. The next person who breaks this will be - % cursed by a Unix daemon. - \def\tempa{{\rm }}% - \def\tempb{#2}% - \edef\tempc{\tempa}% - \edef\tempd{\tempb}% - \ifx\tempc\tempd\ \else% - % - % If we must, put the page number on a line of its own, and fill out - % this line with blank space. (The \hfil is overwhelmed with the - % fill leaders glue in \indexdotfill if the page number does fit.) - \hfil\penalty50 - \null\nobreak\indexdotfill % Have leaders before the page number. - % - % The `\ ' here is removed by the implicit \unskip that TeX does as - % part of (the primitive) \par. Without it, a spurious underfull - % \hbox ensues. - \ #2% The page number ends the paragraph. - \fi% - \par -\endgroup} - -% Like \dotfill except takes at least 1 em. -\def\indexdotfill{\cleaders - \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill} - -\def\primary #1{\line{#1\hfil}} - -\newskip\secondaryindent \secondaryindent=0.5cm - -\def\secondary #1#2{ -{\parfillskip=0in \parskip=0in -\hangindent =1in \hangafter=1 -\noindent\hskip\secondaryindent\hbox{#1}\indexdotfill #2\par -}} - -%% Define two-column mode, which is used in indexes. -%% Adapted from the TeXbook, page 416. -\catcode `\@=11 - -\newbox\partialpage - -\newdimen\doublecolumnhsize - -\def\begindoublecolumns{\begingroup - % Grab any single-column material above us. - \output = {\global\setbox\partialpage - =\vbox{\unvbox255\kern -\topskip \kern \baselineskip}}% - \eject - % - % Now switch to the double-column output routine. - \output={\doublecolumnout}% - % - % Change the page size parameters. We could do this once outside this - % routine, in each of @smallbook, @afourpaper, and the default 8.5x11 - % format, but then we repeat the same computation. Repeating a couple - % of assignments once per index is clearly meaningless for the - % execution time, so we may as well do it once. - % - % First we halve the line length, less a little for the gutter between - % the columns. We compute the gutter based on the line length, so it - % changes automatically with the paper format. The magic constant - % below is chosen so that the gutter has the same value (well, +- < - % 1pt) as it did when we hard-coded it. - % - % We put the result in a separate register, \doublecolumhsize, so we - % can restore it in \pagesofar, after \hsize itself has (potentially) - % been clobbered. - % - \doublecolumnhsize = \hsize - \advance\doublecolumnhsize by -.04154\hsize - \divide\doublecolumnhsize by 2 - \hsize = \doublecolumnhsize - % - % Double the \vsize as well. (We don't need a separate register here, - % since nobody clobbers \vsize.) - \vsize = 2\vsize - \doublecolumnpagegoal -} - -\def\enddoublecolumns{\eject \endgroup \pagegoal=\vsize \unvbox\partialpage} - -\def\doublecolumnsplit{\splittopskip=\topskip \splitmaxdepth=\maxdepth - \global\dimen@=\pageheight \global\advance\dimen@ by-\ht\partialpage - \global\setbox1=\vsplit255 to\dimen@ \global\setbox0=\vbox{\unvbox1} - \global\setbox3=\vsplit255 to\dimen@ \global\setbox2=\vbox{\unvbox3} - \ifdim\ht0>\dimen@ \setbox255=\vbox{\unvbox0\unvbox2} \global\setbox255=\copy5 \fi - \ifdim\ht2>\dimen@ \setbox255=\vbox{\unvbox0\unvbox2} \global\setbox255=\copy5 \fi -} -\def\doublecolumnpagegoal{% - \dimen@=\vsize \advance\dimen@ by-2\ht\partialpage \global\pagegoal=\dimen@ -} -\def\pagesofar{\unvbox\partialpage % - \hsize=\doublecolumnhsize % have to restore this since output routine - \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}} -\def\doublecolumnout{% - \setbox5=\copy255 - {\vbadness=10000 \doublecolumnsplit} - \ifvbox255 - \setbox0=\vtop to\dimen@{\unvbox0} - \setbox2=\vtop to\dimen@{\unvbox2} - \onepageout\pagesofar \unvbox255 \penalty\outputpenalty - \else - \setbox0=\vbox{\unvbox5} - \ifvbox0 - \dimen@=\ht0 \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip - \divide\dimen@ by2 \splittopskip=\topskip \splitmaxdepth=\maxdepth - {\vbadness=10000 - \loop \global\setbox5=\copy0 - \setbox1=\vsplit5 to\dimen@ - \setbox3=\vsplit5 to\dimen@ - \ifvbox5 \global\advance\dimen@ by1pt \repeat - \setbox0=\vbox to\dimen@{\unvbox1} - \setbox2=\vbox to\dimen@{\unvbox3} - \global\setbox\partialpage=\vbox{\pagesofar} - \doublecolumnpagegoal - } - \fi - \fi -} - -\catcode `\@=\other -\message{sectioning,} -% Define chapters, sections, etc. - -\newcount \chapno -\newcount \secno \secno=0 -\newcount \subsecno \subsecno=0 -\newcount \subsubsecno \subsubsecno=0 - -% This counter is funny since it counts through charcodes of letters A, B, ... -\newcount \appendixno \appendixno = `\@ -\def\appendixletter{\char\the\appendixno} - -\newwrite \contentsfile -% This is called from \setfilename. -\def\opencontents{\openout \contentsfile = \jobname.toc} - -% Each @chapter defines this as the name of the chapter. -% page headings and footings can use it. @section does likewise - -\def\thischapter{} \def\thissection{} -\def\seccheck#1{\if \pageno<0 % -\errmessage{@#1 not allowed after generating table of contents}\fi -% -} - -\def\chapternofonts{% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\def\result{\realbackslash result} -\def\equiv{\realbackslash equiv} -\def\expansion{\realbackslash expansion} -\def\print{\realbackslash print} -\def\TeX{\realbackslash TeX} -\def\dots{\realbackslash dots} -\def\copyright{\realbackslash copyright} -\def\tt{\realbackslash tt} -\def\bf{\realbackslash bf } -\def\w{\realbackslash w} -\def\less{\realbackslash less} -\def\gtr{\realbackslash gtr} -\def\hat{\realbackslash hat} -\def\char{\realbackslash char} -\def\tclose##1{\realbackslash tclose {##1}} -\def\code##1{\realbackslash code {##1}} -\def\samp##1{\realbackslash samp {##1}} -\def\r##1{\realbackslash r {##1}} -\def\b##1{\realbackslash b {##1}} -\def\key##1{\realbackslash key {##1}} -\def\file##1{\realbackslash file {##1}} -\def\kbd##1{\realbackslash kbd {##1}} -% These are redefined because @smartitalic wouldn't work inside xdef. -\def\i##1{\realbackslash i {##1}} -\def\cite##1{\realbackslash cite {##1}} -\def\var##1{\realbackslash var {##1}} -\def\emph##1{\realbackslash emph {##1}} -\def\dfn##1{\realbackslash dfn {##1}} -} - -\newcount\absseclevel % used to calculate proper heading level -\newcount\secbase\secbase=0 % @raise/lowersections modify this count - -% @raisesections: treat @section as chapter, @subsection as section, etc. -\def\raisesections{\global\advance\secbase by -1} -\let\up=\raisesections % original BFox name - -% @lowersections: treat @chapter as section, @section as subsection, etc. -\def\lowersections{\global\advance\secbase by 1} -\let\down=\lowersections % original BFox name - -% Choose a numbered-heading macro -% #1 is heading level if unmodified by @raisesections or @lowersections -% #2 is text for heading -\def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1 -\ifcase\absseclevel - \chapterzzz{#2} -\or - \seczzz{#2} -\or - \numberedsubseczzz{#2} -\or - \numberedsubsubseczzz{#2} -\else - \ifnum \absseclevel<0 - \chapterzzz{#2} - \else - \numberedsubsubseczzz{#2} - \fi -\fi -} - -% like \numhead, but chooses appendix heading levels -\def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1 -\ifcase\absseclevel - \appendixzzz{#2} -\or - \appendixsectionzzz{#2} -\or - \appendixsubseczzz{#2} -\or - \appendixsubsubseczzz{#2} -\else - \ifnum \absseclevel<0 - \appendixzzz{#2} - \else - \appendixsubsubseczzz{#2} - \fi -\fi -} - -% like \numhead, but chooses numberless heading levels -\def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1 -\ifcase\absseclevel - \unnumberedzzz{#2} -\or - \unnumberedseczzz{#2} -\or - \unnumberedsubseczzz{#2} -\or - \unnumberedsubsubseczzz{#2} -\else - \ifnum \absseclevel<0 - \unnumberedzzz{#2} - \else - \unnumberedsubsubseczzz{#2} - \fi -\fi -} - - -\def\thischaptername{No Chapter Title} -\outer\def\chapter{\parsearg\chapteryyy} -\def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz -\def\chapterzzz #1{\seccheck{chapter}% -\secno=0 \subsecno=0 \subsubsecno=0 -\global\advance \chapno by 1 \message{Chapter \the\chapno}% -\chapmacro {#1}{\the\chapno}% -\gdef\thissection{#1}% -\gdef\thischaptername{#1}% -% We don't substitute the actual chapter name into \thischapter -% because we don't want its macros evaluated now. -\xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}% -{\chapternofonts% -\edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\global\let\section = \numberedsec -\global\let\subsection = \numberedsubsec -\global\let\subsubsection = \numberedsubsubsec -}} - -\outer\def\appendix{\parsearg\appendixyyy} -\def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz -\def\appendixzzz #1{\seccheck{appendix}% -\secno=0 \subsecno=0 \subsubsecno=0 -\global\advance \appendixno by 1 \message{Appendix \appendixletter}% -\chapmacro {#1}{\putwordAppendix{} \appendixletter}% -\gdef\thissection{#1}% -\gdef\thischaptername{#1}% -\xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}% -{\chapternofonts% -\edef\temp{{\realbackslash chapentry - {#1}{\putwordAppendix{} \appendixletter}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\appendixnoderef % -\global\let\section = \appendixsec -\global\let\subsection = \appendixsubsec -\global\let\subsubsection = \appendixsubsubsec -}} - -\outer\def\top{\parsearg\unnumberedyyy} -\outer\def\unnumbered{\parsearg\unnumberedyyy} -\def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz -\def\unnumberedzzz #1{\seccheck{unnumbered}% -\secno=0 \subsecno=0 \subsubsecno=0 -% -% This used to be simply \message{#1}, but TeX fully expands the -% argument to \message. Therefore, if #1 contained @-commands, TeX -% expanded them. For example, in `@unnumbered The @cite{Book}', TeX -% expanded @cite (which turns out to cause errors because \cite is meant -% to be executed, not expanded). -% -% Anyway, we don't want the fully-expanded definition of @cite to appear -% as a result of the \message, we just want `@cite' itself. We use -% \the<toks register> to achieve this: TeX expands \the<toks> only once, -% simply yielding the contents of the <toks register>. -\toks0 = {#1}\message{(\the\toks0)}% -% -\unnumbchapmacro {#1}% -\gdef\thischapter{#1}\gdef\thissection{#1}% -{\chapternofonts% -\edef\temp{{\realbackslash unnumbchapentry {#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\global\let\section = \unnumberedsec -\global\let\subsection = \unnumberedsubsec -\global\let\subsubsection = \unnumberedsubsubsec -}} - -\outer\def\numberedsec{\parsearg\secyyy} -\def\secyyy #1{\numhead1{#1}} % normally calls seczzz -\def\seczzz #1{\seccheck{section}% -\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % -\gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}% -{\chapternofonts% -\edef\temp{{\realbackslash secentry % -{#1}{\the\chapno}{\the\secno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\penalty 10000 % -}} - -\outer\def\appenixsection{\parsearg\appendixsecyyy} -\outer\def\appendixsec{\parsearg\appendixsecyyy} -\def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz -\def\appendixsectionzzz #1{\seccheck{appendixsection}% -\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % -\gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}% -{\chapternofonts% -\edef\temp{{\realbackslash secentry % -{#1}{\appendixletter}{\the\secno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\appendixnoderef % -\penalty 10000 % -}} - -\outer\def\unnumberedsec{\parsearg\unnumberedsecyyy} -\def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz -\def\unnumberedseczzz #1{\seccheck{unnumberedsec}% -\plainsecheading {#1}\gdef\thissection{#1}% -{\chapternofonts% -\edef\temp{{\realbackslash unnumbsecentry{#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -}} - -\outer\def\numberedsubsec{\parsearg\numberedsubsecyyy} -\def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz -\def\numberedsubseczzz #1{\seccheck{subsection}% -\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % -\subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}% -{\chapternofonts% -\edef\temp{{\realbackslash subsecentry % -{#1}{\the\chapno}{\the\secno}{\the\subsecno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\penalty 10000 % -}} - -\outer\def\appendixsubsec{\parsearg\appendixsubsecyyy} -\def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz -\def\appendixsubseczzz #1{\seccheck{appendixsubsec}% -\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % -\subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}% -{\chapternofonts% -\edef\temp{{\realbackslash subsecentry % -{#1}{\appendixletter}{\the\secno}{\the\subsecno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\appendixnoderef % -\penalty 10000 % -}} - -\outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy} -\def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz -\def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}% -\plainsecheading {#1}\gdef\thissection{#1}% -{\chapternofonts% -\edef\temp{{\realbackslash unnumbsubsecentry{#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -}} - -\outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy} -\def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz -\def\numberedsubsubseczzz #1{\seccheck{subsubsection}% -\gdef\thissection{#1}\global\advance \subsubsecno by 1 % -\subsubsecheading {#1} - {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}% -{\chapternofonts% -\edef\temp{{\realbackslash subsubsecentry % - {#1} - {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno} - {\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\penalty 10000 % -}} - -\outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy} -\def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz -\def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}% -\gdef\thissection{#1}\global\advance \subsubsecno by 1 % -\subsubsecheading {#1} - {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}% -{\chapternofonts% -\edef\temp{{\realbackslash subsubsecentry{#1}% - {\appendixletter} - {\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\appendixnoderef % -\penalty 10000 % -}} - -\outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy} -\def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz -\def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}% -\plainsecheading {#1}\gdef\thissection{#1}% -{\chapternofonts% -\edef\temp{{\realbackslash unnumbsubsubsecentry{#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -}} - -% These are variants which are not "outer", so they can appear in @ifinfo. -% Actually, they should now be obsolete; ordinary section commands should work. -\def\infotop{\parsearg\unnumberedzzz} -\def\infounnumbered{\parsearg\unnumberedzzz} -\def\infounnumberedsec{\parsearg\unnumberedseczzz} -\def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz} -\def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz} - -\def\infoappendix{\parsearg\appendixzzz} -\def\infoappendixsec{\parsearg\appendixseczzz} -\def\infoappendixsubsec{\parsearg\appendixsubseczzz} -\def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz} - -\def\infochapter{\parsearg\chapterzzz} -\def\infosection{\parsearg\sectionzzz} -\def\infosubsection{\parsearg\subsectionzzz} -\def\infosubsubsection{\parsearg\subsubsectionzzz} - -% These macros control what the section commands do, according -% to what kind of chapter we are in (ordinary, appendix, or unnumbered). -% Define them by default for a numbered chapter. -\global\let\section = \numberedsec -\global\let\subsection = \numberedsubsec -\global\let\subsubsection = \numberedsubsubsec - -% Define @majorheading, @heading and @subheading - -% NOTE on use of \vbox for chapter headings, section headings, and -% such: -% 1) We use \vbox rather than the earlier \line to permit -% overlong headings to fold. -% 2) \hyphenpenalty is set to 10000 because hyphenation in a -% heading is obnoxious; this forbids it. -% 3) Likewise, headings look best if no \parindent is used, and -% if justification is not attempted. Hence \raggedright. - - -\def\majorheading{\parsearg\majorheadingzzz} -\def\majorheadingzzz #1{% -{\advance\chapheadingskip by 10pt \chapbreak }% -{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}\bigskip \par\penalty 200} - -\def\chapheading{\parsearg\chapheadingzzz} -\def\chapheadingzzz #1{\chapbreak % -{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}\bigskip \par\penalty 200} - -\def\heading{\parsearg\secheadingi} - -\def\subheading{\parsearg\subsecheadingi} - -\def\subsubheading{\parsearg\subsubsecheadingi} - -% These macros generate a chapter, section, etc. heading only -% (including whitespace, linebreaking, etc. around it), -% given all the information in convenient, parsed form. - -%%% Args are the skip and penalty (usually negative) -\def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi} - -\def\setchapterstyle #1 {\csname CHAPF#1\endcsname} - -%%% Define plain chapter starts, and page on/off switching for it -% Parameter controlling skip before chapter headings (if needed) - -\newskip \chapheadingskip \chapheadingskip = 30pt plus 8pt minus 4pt - -\def\chapbreak{\dobreak \chapheadingskip {-4000}} -\def\chappager{\par\vfill\supereject} -\def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi} - -\def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname} - -\def\CHAPPAGoff{ -\global\let\pchapsepmacro=\chapbreak -\global\let\pagealignmacro=\chappager} - -\def\CHAPPAGon{ -\global\let\pchapsepmacro=\chappager -\global\let\pagealignmacro=\chappager -\global\def\HEADINGSon{\HEADINGSsingle}} - -\def\CHAPPAGodd{ -\global\let\pchapsepmacro=\chapoddpage -\global\let\pagealignmacro=\chapoddpage -\global\def\HEADINGSon{\HEADINGSdouble}} - -\CHAPPAGon - -\def\CHAPFplain{ -\global\let\chapmacro=\chfplain -\global\let\unnumbchapmacro=\unnchfplain} - -\def\chfplain #1#2{% - \pchapsepmacro - {% - \chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #2\enspace #1}% - }% - \bigskip - \penalty5000 -} - -\def\unnchfplain #1{% -\pchapsepmacro % -{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}\bigskip \par\penalty 10000 % -} -\CHAPFplain % The default - -\def\unnchfopen #1{% -\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}\bigskip \par\penalty 10000 % -} - -\def\chfopen #1#2{\chapoddpage {\chapfonts -\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}% -\par\penalty 5000 % -} - -\def\CHAPFopen{ -\global\let\chapmacro=\chfopen -\global\let\unnumbchapmacro=\unnchfopen} - -% Parameter controlling skip before section headings. - -\newskip \subsecheadingskip \subsecheadingskip = 17pt plus 8pt minus 4pt -\def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}} - -\newskip \secheadingskip \secheadingskip = 21pt plus 8pt minus 4pt -\def\secheadingbreak{\dobreak \secheadingskip {-1000}} - -% @paragraphindent is defined for the Info formatting commands only. -\let\paragraphindent=\comment - -% Section fonts are the base font at magstep2, which produces -% a size a bit more than 14 points in the default situation. - -\def\secheading #1#2#3{\secheadingi {#2.#3\enspace #1}} -\def\plainsecheading #1{\secheadingi {#1}} -\def\secheadingi #1{{\advance \secheadingskip by \parskip % -\secheadingbreak}% -{\secfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}% -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 } - - -% Subsection fonts are the base font at magstep1, -% which produces a size of 12 points. - -\def\subsecheading #1#2#3#4{\subsecheadingi {#2.#3.#4\enspace #1}} -\def\subsecheadingi #1{{\advance \subsecheadingskip by \parskip % -\subsecheadingbreak}% -{\subsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}% -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 } - -\def\subsubsecfonts{\subsecfonts} % Maybe this should change: - % Perhaps make sssec fonts scaled - % magstep half -\def\subsubsecheading #1#2#3#4#5{\subsubsecheadingi {#2.#3.#4.#5\enspace #1}} -\def\subsubsecheadingi #1{{\advance \subsecheadingskip by \parskip % -\subsecheadingbreak}% -{\subsubsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}% -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000} - - -\message{toc printing,} - -% Finish up the main text and prepare to read what we've written -% to \contentsfile. - -\newskip\contentsrightmargin \contentsrightmargin=1in -\def\startcontents#1{% - \pagealignmacro - \immediate\closeout \contentsfile - \ifnum \pageno>0 - \pageno = -1 % Request roman numbered pages. - \fi - % Don't need to put `Contents' or `Short Contents' in the headline. - % It is abundantly clear what they are. - \unnumbchapmacro{#1}\def\thischapter{}% - \begingroup % Set up to handle contents files properly. - \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11 - \raggedbottom % Worry more about breakpoints than the bottom. - \advance\hsize by -\contentsrightmargin % Don't use the full line length. -} - - -% Normal (long) toc. -\outer\def\contents{% - \startcontents{\putwordTableofContents}% - \input \jobname.toc - \endgroup - \vfill \eject -} - -% And just the chapters. -\outer\def\summarycontents{% - \startcontents{\putwordShortContents}% - % - \let\chapentry = \shortchapentry - \let\unnumbchapentry = \shortunnumberedentry - % We want a true roman here for the page numbers. - \secfonts - \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl - \rm - \advance\baselineskip by 1pt % Open it up a little. - \def\secentry ##1##2##3##4{} - \def\unnumbsecentry ##1##2{} - \def\subsecentry ##1##2##3##4##5{} - \def\unnumbsubsecentry ##1##2{} - \def\subsubsecentry ##1##2##3##4##5##6{} - \def\unnumbsubsubsecentry ##1##2{} - \input \jobname.toc - \endgroup - \vfill \eject -} -\let\shortcontents = \summarycontents - -% These macros generate individual entries in the table of contents. -% The first argument is the chapter or section name. -% The last argument is the page number. -% The arguments in between are the chapter number, section number, ... - -% Chapter-level things, for both the long and short contents. -\def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}} - -% See comments in \dochapentry re vbox and related settings -\def\shortchapentry#1#2#3{% - \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno{#3}}% -} - -% Typeset the label for a chapter or appendix for the short contents. -% The arg is, e.g. `Appendix A' for an appendix, or `3' for a chapter. -% We could simplify the code here by writing out an \appendixentry -% command in the toc file for appendices, instead of using \chapentry -% for both, but it doesn't seem worth it. -\setbox0 = \hbox{\shortcontrm \putwordAppendix } -\newdimen\shortappendixwidth \shortappendixwidth = \wd0 - -\def\shortchaplabel#1{% - % We typeset #1 in a box of constant width, regardless of the text of - % #1, so the chapter titles will come out aligned. - \setbox0 = \hbox{#1}% - \dimen0 = \ifdim\wd0 > \shortappendixwidth \shortappendixwidth \else 0pt \fi - % - % This space should be plenty, since a single number is .5em, and the - % widest letter (M) is 1em, at least in the Computer Modern fonts. - % (This space doesn't include the extra space that gets added after - % the label; that gets put in in \shortchapentry above.) - \advance\dimen0 by 1.1em - \hbox to \dimen0{#1\hfil}% -} - -\def\unnumbchapentry#1#2{\dochapentry{#1}{#2}} -\def\shortunnumberedentry#1#2{\tocentry{#1}{\doshortpageno{#2}}} - -% Sections. -\def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}} -\def\unnumbsecentry#1#2{\dosecentry{#1}{#2}} - -% Subsections. -\def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}} -\def\unnumbsubsecentry#1#2{\dosubsecentry{#1}{#2}} - -% And subsubsections. -\def\subsubsecentry#1#2#3#4#5#6{% - \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}} -\def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}} - - -% This parameter controls the indentation of the various levels. -\newdimen\tocindent \tocindent = 3pc - -% Now for the actual typesetting. In all these, #1 is the text and #2 is the -% page number. -% -% If the toc has to be broken over pages, we would want to be at chapters -% if at all possible; hence the \penalty. -\def\dochapentry#1#2{% - \penalty-300 \vskip\baselineskip - \begingroup - \chapentryfonts - \tocentry{#1}{\dopageno{#2}}% - \endgroup - \nobreak\vskip .25\baselineskip -} - -\def\dosecentry#1#2{\begingroup - \secentryfonts \leftskip=\tocindent - \tocentry{#1}{\dopageno{#2}}% -\endgroup} - -\def\dosubsecentry#1#2{\begingroup - \subsecentryfonts \leftskip=2\tocindent - \tocentry{#1}{\dopageno{#2}}% -\endgroup} - -\def\dosubsubsecentry#1#2{\begingroup - \subsubsecentryfonts \leftskip=3\tocindent - \tocentry{#1}{\dopageno{#2}}% -\endgroup} - -% Final typesetting of a toc entry; we use the same \entry macro as for -% the index entries, but we want to suppress hyphenation here. (We -% can't do that in the \entry macro, since index entries might consist -% of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.) -% -\def\tocentry#1#2{\begingroup - \hyphenpenalty = 10000 - \entry{#1}{#2}% -\endgroup} - -% Space between chapter (or whatever) number and the title. -\def\labelspace{\hskip1em \relax} - -\def\dopageno#1{{\rm #1}} -\def\doshortpageno#1{{\rm #1}} - -\def\chapentryfonts{\secfonts \rm} -\def\secentryfonts{\textfonts} -\let\subsecentryfonts = \textfonts -\let\subsubsecentryfonts = \textfonts - - -\message{environments,} - -% Since these characters are used in examples, it should be an even number of -% \tt widths. Each \tt character is 1en, so two makes it 1em. -% Furthermore, these definitions must come after we define our fonts. -\newbox\dblarrowbox \newbox\longdblarrowbox -\newbox\pushcharbox \newbox\bullbox -\newbox\equivbox \newbox\errorbox - -\let\ptexequiv = \equiv - -%{\tentt -%\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil} -%\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil} -%\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil} -%\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil} -% Adapted from the manmac format (p.420 of TeXbook) -%\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width .85ex -% depth .1ex\hfil} -%} - -\def\point{$\star$} - -\def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}} -\def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}} -\def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}} - -\def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}} - -% Adapted from the TeXbook's \boxit. -{\tentt \global\dimen0 = 3em}% Width of the box. -\dimen2 = .55pt % Thickness of rules -% The text. (`r' is open on the right, `e' somewhat less so on the left.) -\setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt} - -\global\setbox\errorbox=\hbox to \dimen0{\hfil - \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right. - \advance\hsize by -2\dimen2 % Rules. - \vbox{ - \hrule height\dimen2 - \hbox{\vrule width\dimen2 \kern3pt % Space to left of text. - \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below. - \kern3pt\vrule width\dimen2}% Space to right. - \hrule height\dimen2} - \hfil} - -% The @error{} command. -\def\error{\leavevmode\lower.7ex\copy\errorbox} - -% @tex ... @end tex escapes into raw Tex temporarily. -% One exception: @ is still an escape character, so that @end tex works. -% But \@ or @@ will get a plain tex @ character. - -\def\tex{\begingroup -\catcode `\\=0 \catcode `\{=1 \catcode `\}=2 -\catcode `\$=3 \catcode `\&=4 \catcode `\#=6 -\catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie -\catcode `\%=14 -\catcode 43=12 -\catcode`\"=12 -\catcode`\==12 -\catcode`\|=12 -\catcode`\<=12 -\catcode`\>=12 -\escapechar=`\\ -% -\let\~=\ptextilde -\let\{=\ptexlbrace -\let\}=\ptexrbrace -\let\.=\ptexdot -\let\*=\ptexstar -\let\dots=\ptexdots -\def\@{@}% -\let\bullet=\ptexbullet -\let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext \let\l=\ptexl -\let\L=\ptexL -% -\let\Etex=\endgroup} - -% Define @lisp ... @endlisp. -% @lisp does a \begingroup so it can rebind things, -% including the definition of @endlisp (which normally is erroneous). - -% Amount to narrow the margins by for @lisp. -\newskip\lispnarrowing \lispnarrowing=0.4in - -% This is the definition that ^^M gets inside @lisp, @example, and other -% such environments. \null is better than a space, since it doesn't -% have any width. -\def\lisppar{\null\endgraf} - -% Make each space character in the input produce a normal interword -% space in the output. Don't allow a line break at this space, as this -% is used only in environments like @example, where each line of input -% should produce a line of output anyway. -% -{\obeyspaces % -\gdef\sepspaces{\obeyspaces\let =\tie}} - -% Define \obeyedspace to be our active space, whatever it is. This is -% for use in \parsearg. -{\sepspaces% -\global\let\obeyedspace= } - -% This space is always present above and below environments. -\newskip\envskipamount \envskipamount = 0pt - -% Make spacing and below environment symmetrical. We use \parskip here -% to help in doing that, since in @example-like environments \parskip -% is reset to zero; thus the \afterenvbreak inserts no space -- but the -% start of the next paragraph will insert \parskip -% -\def\aboveenvbreak{{\advance\envskipamount by \parskip -\endgraf \ifdim\lastskip<\envskipamount -\removelastskip \penalty-50 \vskip\envskipamount \fi}} - -\let\afterenvbreak = \aboveenvbreak - -% \nonarrowing is a flag. If "set", @lisp etc don't narrow margins. -\let\nonarrowing=\relax - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% \cartouche: draw rectangle w/rounded corners around argument -\font\circle=lcircle10 -\newdimen\circthick -\newdimen\cartouter\newdimen\cartinner -\newskip\normbskip\newskip\normpskip\newskip\normlskip -\circthick=\fontdimen8\circle -% -\def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth -\def\ctr{{\hskip 6pt\circle\char'010}} -\def\cbl{{\circle\char'012\hskip -6pt}} -\def\cbr{{\hskip 6pt\circle\char'011}} -\def\carttop{\hbox to \cartouter{\hskip\lskip - \ctl\leaders\hrule height\circthick\hfil\ctr - \hskip\rskip}} -\def\cartbot{\hbox to \cartouter{\hskip\lskip - \cbl\leaders\hrule height\circthick\hfil\cbr - \hskip\rskip}} -% -\newskip\lskip\newskip\rskip - -\long\def\cartouche{% -\begingroup - \lskip=\leftskip \rskip=\rightskip - \leftskip=0pt\rightskip=0pt %we want these *outside*. - \cartinner=\hsize \advance\cartinner by-\lskip - \advance\cartinner by-\rskip - \cartouter=\hsize - \advance\cartouter by 18pt % allow for 3pt kerns on either -% side, and for 6pt waste from -% each corner char - \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip - % Flag to tell @lisp, etc., not to narrow margin. - \let\nonarrowing=\comment - \vbox\bgroup - \baselineskip=0pt\parskip=0pt\lineskip=0pt - \carttop - \hbox\bgroup - \hskip\lskip - \vrule\kern3pt - \vbox\bgroup - \hsize=\cartinner - \kern3pt - \begingroup - \baselineskip=\normbskip - \lineskip=\normlskip - \parskip=\normpskip - \vskip -\parskip -\def\Ecartouche{% - \endgroup - \kern3pt - \egroup - \kern3pt\vrule - \hskip\rskip - \egroup - \cartbot - \egroup -\endgroup -}} - - -% This macro is called at the beginning of all the @example variants, -% inside a group. -\def\nonfillstart{% - \aboveenvbreak - \inENV % This group ends at the end of the body - \hfuzz = 12pt % Don't be fussy - \sepspaces % Make spaces be word-separators rather than space tokens. - \singlespace - \let\par = \lisppar % don't ignore blank lines - \obeylines % each line of input is a line of output - \parskip = 0pt - \parindent = 0pt - \emergencystretch = 0pt % don't try to avoid overfull boxes - % @cartouche defines \nonarrowing to inhibit narrowing - % at next level down. - \ifx\nonarrowing\relax - \advance \leftskip by \lispnarrowing - \exdentamount=\lispnarrowing - \let\exdent=\nofillexdent - \let\nonarrowing=\relax - \fi -} - -% To ending an @example-like environment, we first end the paragraph -% (via \afterenvbreak's vertical glue), and then the group. That way we -% keep the zero \parskip that the environments set -- \parskip glue -% will be inserted at the beginning of the next paragraph in the -% document, after the environment. -% -\def\nonfillfinish{\afterenvbreak\endgroup}% - -% This macro is -\def\lisp{\begingroup - \nonfillstart - \let\Elisp = \nonfillfinish - \tt - \rawbackslash % have \ input char produce \ char from current font - \gobble -} - -% Define the \E... control sequence only if we are inside the -% environment, so the error checking in \end will work. -% -% We must call \lisp last in the definition, since it reads the -% return following the @example (or whatever) command. -% -\def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp} -\def\smallexample{\begingroup \def\Esmallexample{\nonfillfinish\endgroup}\lisp} -\def\smalllisp{\begingroup \def\Esmalllisp{\nonfillfinish\endgroup}\lisp} - -% @smallexample and @smalllisp. This is not used unless the @smallbook -% command is given. Originally contributed by Pavel@xerox. -% -\def\smalllispx{\begingroup - \nonfillstart - \let\Esmalllisp = \nonfillfinish - \let\Esmallexample = \nonfillfinish - % - % Smaller interline space and fonts for small examples. - \setleading{10pt}% - \indexfonts \tt - \rawbackslash % make \ output the \ character from the current font (tt) - \gobble -} - -% This is @display; same as @lisp except use roman font. -% -\def\display{\begingroup - \nonfillstart - \let\Edisplay = \nonfillfinish - \gobble -} - -% This is @format; same as @display except don't narrow margins. -% -\def\format{\begingroup - \let\nonarrowing = t - \nonfillstart - \let\Eformat = \nonfillfinish - \gobble -} - -% @flushleft (same as @format) and @flushright. -% -\def\flushleft{\begingroup - \let\nonarrowing = t - \nonfillstart - \let\Eflushleft = \nonfillfinish - \gobble -} -\def\flushright{\begingroup - \let\nonarrowing = t - \nonfillstart - \let\Eflushright = \nonfillfinish - \advance\leftskip by 0pt plus 1fill - \gobble} - -% @quotation does normal linebreaking (hence we can't use \nonfillstart) -% and narrows the margins. -% -\def\quotation{% - \begingroup\inENV %This group ends at the end of the @quotation body - {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip - \singlespace - \parindent=0pt - % We have retained a nonzero parskip for the environment, since we're - % doing normal filling. So to avoid extra space below the environment... - \def\Equotation{\parskip = 0pt \nonfillfinish}% - % - % @cartouche defines \nonarrowing to inhibit narrowing at next level down. - \ifx\nonarrowing\relax - \advance\leftskip by \lispnarrowing - \advance\rightskip by \lispnarrowing - \exdentamount = \lispnarrowing - \let\nonarrowing = \relax - \fi -} - -\message{defuns,} -% Define formatter for defuns -% First, allow user to change definition object font (\df) internally -\def\setdeffont #1 {\csname DEF#1\endcsname} - -\newskip\defbodyindent \defbodyindent=.4in -\newskip\defargsindent \defargsindent=50pt -\newskip\deftypemargin \deftypemargin=12pt -\newskip\deflastargmargin \deflastargmargin=18pt - -\newcount\parencount -% define \functionparens, which makes ( and ) and & do special things. -% \functionparens affects the group it is contained in. -\def\activeparens{% -\catcode`\(=\active \catcode`\)=\active \catcode`\&=\active -\catcode`\[=\active \catcode`\]=\active} - -% Make control sequences which act like normal parenthesis chars. -\let\lparen = ( \let\rparen = ) - -{\activeparens % Now, smart parens don't turn on until &foo (see \amprm) - -% Be sure that we always have a definition for `(', etc. For example, -% if the fn name has parens in it, \boldbrax will not be in effect yet, -% so TeX would otherwise complain about undefined control sequence. -\global\let(=\lparen \global\let)=\rparen -\global\let[=\lbrack \global\let]=\rbrack - -\gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 } -\gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb} - -% Definitions of (, ) and & used in args for functions. -% This is the definition of ( outside of all parentheses. -\gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested % -\global\advance\parencount by 1 } -% -% This is the definition of ( when already inside a level of parens. -\gdef\opnested{\char`\(\global\advance\parencount by 1 } -% -\gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0. -% also in that case restore the outer-level definition of (. -\ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi -\global\advance \parencount by -1 } -% If we encounter &foo, then turn on ()-hacking afterwards -\gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ } -% -\gdef\normalparens{\boldbrax\let&=\ampnr} -} % End of definition inside \activeparens -%% These parens (in \boldbrax) actually are a little bolder than the -%% contained text. This is especially needed for [ and ] -\def\opnr{{\sf\char`\(}} \def\clnr{{\sf\char`\)}} \def\ampnr{\&} -\def\lbrb{{\bf\char`\[}} \def\rbrb{{\bf\char`\]}} - -% First, defname, which formats the header line itself. -% #1 should be the function name. -% #2 should be the type of definition, such as "Function". - -\def\defname #1#2{% -% Get the values of \leftskip and \rightskip as they were -% outside the @def... -\dimen2=\leftskip -\advance\dimen2 by -\defbodyindent -\dimen3=\rightskip -\advance\dimen3 by -\defbodyindent -\noindent % -\setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}% -\dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line -\dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations -\parshape 2 0in \dimen0 \defargsindent \dimen1 % -% Now output arg 2 ("Function" or some such) -% ending at \deftypemargin from the right margin, -% but stuck inside a box of width 0 so it does not interfere with linebreaking -{% Adjust \hsize to exclude the ambient margins, -% so that \rightline will obey them. -\advance \hsize by -\dimen2 \advance \hsize by -\dimen3 -\rlap{\rightline{{\rm #2}\hskip \deftypemargin}}}% -% Make all lines underfull and no complaints: -\tolerance=10000 \hbadness=10000 -\advance\leftskip by -\defbodyindent -\exdentamount=\defbodyindent -{\df #1}\enskip % Generate function name -} - -% Actually process the body of a definition -% #1 should be the terminating control sequence, such as \Edefun. -% #2 should be the "another name" control sequence, such as \defunx. -% #3 should be the control sequence that actually processes the header, -% such as \defunheader. - -\def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2{\begingroup\obeylines\activeparens\spacesplit#3}% -\parindent=0in -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent -\exdentamount=\defbodyindent -\begingroup % -\catcode 61=\active % 61 is `=' -\obeylines\activeparens\spacesplit#3} - -\def\defmethparsebody #1#2#3#4 {\begingroup\inENV % -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}% -\parindent=0in -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent -\exdentamount=\defbodyindent -\begingroup\obeylines\activeparens\spacesplit{#3{#4}}} - -\def\defopparsebody #1#2#3#4#5 {\begingroup\inENV % -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2##1 ##2 {\def#4{##1}% -\begingroup\obeylines\activeparens\spacesplit{#3{##2}}}% -\parindent=0in -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent -\exdentamount=\defbodyindent -\begingroup\obeylines\activeparens\spacesplit{#3{#5}}} - -% These parsing functions are similar to the preceding ones -% except that they do not make parens into active characters. -% These are used for "variables" since they have no arguments. - -\def\defvarparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2{\begingroup\obeylines\spacesplit#3}% -\parindent=0in -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent -\exdentamount=\defbodyindent -\begingroup % -\catcode 61=\active % -\obeylines\spacesplit#3} - -% This is used for \def{tp,vr}parsebody. It could probably be used for -% some of the others, too, with some judicious conditionals. -% -\def\parsebodycommon#1#2#3{% - \begingroup\inENV % - \medbreak % - % Define the end token that this defining construct specifies - % so that it will exit this group. - \def#1{\endgraf\endgroup\medbreak}% - \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}% - \parindent=0in - \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent - \exdentamount=\defbodyindent - \begingroup\obeylines -} - -\def\defvrparsebody#1#2#3#4 {% - \parsebodycommon{#1}{#2}{#3}% - \spacesplit{#3{#4}}% -} - -% This loses on `@deftp {Data Type} {struct termios}' -- it thinks the -% type is just `struct', because we lose the braces in `{struct -% termios}' when \spacesplit reads its undelimited argument. Sigh. -% \let\deftpparsebody=\defvrparsebody -% -% So, to get around this, we put \empty in with the type name. That -% way, TeX won't find exactly `{...}' as an undelimited argument, and -% won't strip off the braces. -% -\def\deftpparsebody #1#2#3#4 {% - \parsebodycommon{#1}{#2}{#3}% - \spacesplit{\parsetpheaderline{#3{#4}}}\empty -} - -% Fine, but then we have to eventually remove the \empty *and* the -% braces (if any). That's what this does, putting the result in \tptemp. -% -\def\removeemptybraces\empty#1\relax{\def\tptemp{#1}}% - -% After \spacesplit has done its work, this is called -- #1 is the final -% thing to call, #2 the type name (which starts with \empty), and #3 -% (which might be empty) the arguments. -% -\def\parsetpheaderline#1#2#3{% - \removeemptybraces#2\relax - #1{\tptemp}{#3}% -}% - -\def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV % -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2##1 ##2 {\def#4{##1}% -\begingroup\obeylines\spacesplit{#3{##2}}}% -\parindent=0in -\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent -\exdentamount=\defbodyindent -\begingroup\obeylines\spacesplit{#3{#5}}} - -% Split up #2 at the first space token. -% call #1 with two arguments: -% the first is all of #2 before the space token, -% the second is all of #2 after that space token. -% If #2 contains no space token, all of it is passed as the first arg -% and the second is passed as empty. - -{\obeylines -\gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}% -\long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{% -\ifx\relax #3% -#1{#2}{}\else #1{#2}{#3#4}\fi}} - -% So much for the things common to all kinds of definitions. - -% Define @defun. - -% First, define the processing that is wanted for arguments of \defun -% Use this to expand the args and terminate the paragraph they make up - -\def\defunargs #1{\functionparens \sl -% Expand, preventing hyphenation at `-' chars. -% Note that groups don't affect changes in \hyphenchar. -\hyphenchar\tensl=0 -#1% -\hyphenchar\tensl=45 -\ifnum\parencount=0 \else \errmessage{unbalanced parens in @def arguments}\fi% -\interlinepenalty=10000 -\advance\rightskip by 0pt plus 1fil -\endgraf\penalty 10000\vskip -\parskip\penalty 10000% -} - -\def\deftypefunargs #1{% -% Expand, preventing hyphenation at `-' chars. -% Note that groups don't affect changes in \hyphenchar. -\functionparens -\tclose{#1}% avoid \code because of side effects on active chars -\interlinepenalty=10000 -\advance\rightskip by 0pt plus 1fil -\endgraf\penalty 10000\vskip -\parskip\penalty 10000% -} - -% Do complete processing of one @defun or @defunx line already parsed. - -% @deffn Command forward-char nchars - -\def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader} - -\def\deffnheader #1#2#3{\doind {fn}{\code{#2}}% -\begingroup\defname {#2}{#1}\defunargs{#3}\endgroup % -\catcode 61=\other % Turn off change made in \defparsebody -} - -% @defun == @deffn Function - -\def\defun{\defparsebody\Edefun\defunx\defunheader} - -\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{Function}% -\defunargs {#2}\endgroup % -\catcode 61=\other % Turn off change made in \defparsebody -} - -% @deftypefun int foobar (int @var{foo}, float @var{bar}) - -\def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader} - -% #1 is the data type. #2 is the name and args. -\def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax} -% #1 is the data type, #2 the name, #3 the args. -\def\deftypefunheaderx #1#2 #3\relax{% -\doind {fn}{\code{#2}}% Make entry in function index -\begingroup\defname {\defheaderxcond#1\relax$$$#2}{Function}% -\deftypefunargs {#3}\endgroup % -\catcode 61=\other % Turn off change made in \defparsebody -} - -% @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar}) - -\def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader} - -% \defheaderxcond#1\relax$$$ -% puts #1 in @code, followed by a space, but does nothing if #1 is null. -\def\defheaderxcond#1#2$$${\ifx#1\relax\else\code{#1#2} \fi} - -% #1 is the classification. #2 is the data type. #3 is the name and args. -\def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax} -% #1 is the classification, #2 the data type, #3 the name, #4 the args. -\def\deftypefnheaderx #1#2#3 #4\relax{% -\doind {fn}{\code{#3}}% Make entry in function index -\begingroup -\normalparens % notably, turn off `&' magic, which prevents -% at least some C++ text from working -\defname {\defheaderxcond#2\relax$$$#3}{#1}% -\deftypefunargs {#4}\endgroup % -\catcode 61=\other % Turn off change made in \defparsebody -} - -% @defmac == @deffn Macro - -\def\defmac{\defparsebody\Edefmac\defmacx\defmacheader} - -\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{Macro}% -\defunargs {#2}\endgroup % -\catcode 61=\other % Turn off change made in \defparsebody -} - -% @defspec == @deffn Special Form - -\def\defspec{\defparsebody\Edefspec\defspecx\defspecheader} - -\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{Special Form}% -\defunargs {#2}\endgroup % -\catcode 61=\other % Turn off change made in \defparsebody -} - -% This definition is run if you use @defunx -% anywhere other than immediately after a @defun or @defunx. - -\def\deffnx #1 {\errmessage{@deffnx in invalid context}} -\def\defunx #1 {\errmessage{@defunx in invalid context}} -\def\defmacx #1 {\errmessage{@defmacx in invalid context}} -\def\defspecx #1 {\errmessage{@defspecx in invalid context}} -\def\deftypefnx #1 {\errmessage{@deftypefnx in invalid context}} -\def\deftypeunx #1 {\errmessage{@deftypeunx in invalid context}} - -% @defmethod, and so on - -% @defop {Funny Method} foo-class frobnicate argument - -\def\defop #1 {\def\defoptype{#1}% -\defopparsebody\Edefop\defopx\defopheader\defoptype} - -\def\defopheader #1#2#3{% -\dosubind {fn}{\code{#2}}{on #1}% Make entry in function index -\begingroup\defname {#2}{\defoptype{} on #1}% -\defunargs {#3}\endgroup % -} - -% @defmethod == @defop Method - -\def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader} - -\def\defmethodheader #1#2#3{% -\dosubind {fn}{\code{#2}}{on #1}% entry in function index -\begingroup\defname {#2}{Method on #1}% -\defunargs {#3}\endgroup % -} - -% @defcv {Class Option} foo-class foo-flag - -\def\defcv #1 {\def\defcvtype{#1}% -\defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype} - -\def\defcvarheader #1#2#3{% -\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index -\begingroup\defname {#2}{\defcvtype{} of #1}% -\defvarargs {#3}\endgroup % -} - -% @defivar == @defcv {Instance Variable} - -\def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader} - -\def\defivarheader #1#2#3{% -\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index -\begingroup\defname {#2}{Instance Variable of #1}% -\defvarargs {#3}\endgroup % -} - -% These definitions are run if you use @defmethodx, etc., -% anywhere other than immediately after a @defmethod, etc. - -\def\defopx #1 {\errmessage{@defopx in invalid context}} -\def\defmethodx #1 {\errmessage{@defmethodx in invalid context}} -\def\defcvx #1 {\errmessage{@defcvx in invalid context}} -\def\defivarx #1 {\errmessage{@defivarx in invalid context}} - -% Now @defvar - -% First, define the processing that is wanted for arguments of @defvar. -% This is actually simple: just print them in roman. -% This must expand the args and terminate the paragraph they make up -\def\defvarargs #1{\normalparens #1% -\interlinepenalty=10000 -\endgraf\penalty 10000\vskip -\parskip\penalty 10000} - -% @defvr Counter foo-count - -\def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader} - -\def\defvrheader #1#2#3{\doind {vr}{\code{#2}}% -\begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup} - -% @defvar == @defvr Variable - -\def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader} - -\def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index -\begingroup\defname {#1}{Variable}% -\defvarargs {#2}\endgroup % -} - -% @defopt == @defvr {User Option} - -\def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader} - -\def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index -\begingroup\defname {#1}{User Option}% -\defvarargs {#2}\endgroup % -} - -% @deftypevar int foobar - -\def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader} - -% #1 is the data type. #2 is the name. -\def\deftypevarheader #1#2{% -\doind {vr}{\code{#2}}% Make entry in variables index -\begingroup\defname {\defheaderxcond#1\relax$$$#2}{Variable}% -\interlinepenalty=10000 -\endgraf\penalty 10000\vskip -\parskip\penalty 10000 -\endgroup} - -% @deftypevr {Global Flag} int enable - -\def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader} - -\def\deftypevrheader #1#2#3{\doind {vr}{\code{#3}}% -\begingroup\defname {\defheaderxcond#2\relax$$$#3}{#1} -\interlinepenalty=10000 -\endgraf\penalty 10000\vskip -\parskip\penalty 10000 -\endgroup} - -% This definition is run if you use @defvarx -% anywhere other than immediately after a @defvar or @defvarx. - -\def\defvrx #1 {\errmessage{@defvrx in invalid context}} -\def\defvarx #1 {\errmessage{@defvarx in invalid context}} -\def\defoptx #1 {\errmessage{@defoptx in invalid context}} -\def\deftypevarx #1 {\errmessage{@deftypevarx in invalid context}} -\def\deftypevrx #1 {\errmessage{@deftypevrx in invalid context}} - -% Now define @deftp -% Args are printed in bold, a slight difference from @defvar. - -\def\deftpargs #1{\bf \defvarargs{#1}} - -% @deftp Class window height width ... - -\def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader} - -\def\deftpheader #1#2#3{\doind {tp}{\code{#2}}% -\begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup} - -% This definition is run if you use @deftpx, etc -% anywhere other than immediately after a @deftp, etc. - -\def\deftpx #1 {\errmessage{@deftpx in invalid context}} - -\message{cross reference,} -% Define cross-reference macros -\newwrite \auxfile - -\newif\ifhavexrefs % True if xref values are known. -\newif\ifwarnedxrefs % True if we warned once that they aren't known. - -% \setref{foo} defines a cross-reference point named foo. - -\def\setref#1{% -\dosetq{#1-title}{Ytitle}% -\dosetq{#1-pg}{Ypagenumber}% -\dosetq{#1-snt}{Ysectionnumberandtype}} - -\def\unnumbsetref#1{% -\dosetq{#1-title}{Ytitle}% -\dosetq{#1-pg}{Ypagenumber}% -\dosetq{#1-snt}{Ynothing}} - -\def\appendixsetref#1{% -\dosetq{#1-title}{Ytitle}% -\dosetq{#1-pg}{Ypagenumber}% -\dosetq{#1-snt}{Yappendixletterandtype}} - -% \xref, \pxref, and \ref generate cross-references to specified points. -% For \xrefX, #1 is the node name, #2 the name of the Info -% cross-reference, #3 the printed node name, #4 the name of the Info -% file, #5 the name of the printed manual. All but the node name can be -% omitted. -% -\def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]} -\def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]} -\def\ref#1{\xrefX[#1,,,,,,,]} -\def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup - \def\printedmanual{\ignorespaces #5}% - \def\printednodename{\ignorespaces #3}% - \setbox1=\hbox{\printedmanual}% - \setbox0=\hbox{\printednodename}% - \ifdim \wd0 = 0pt - % No printed node name was explicitly given. - \ifx\SETxref-automatic-section-title\relax % - % Use the actual chapter/section title appear inside - % the square brackets. Use the real section title if we have it. - \ifdim \wd1>0pt% - % It is in another manual, so we don't have it. - \def\printednodename{\ignorespaces #1}% - \else - \ifhavexrefs - % We know the real title if we have the xref values. - \def\printednodename{\refx{#1-title}}% - \else - % Otherwise just copy the Info node name. - \def\printednodename{\ignorespaces #1}% - \fi% - \fi - \def\printednodename{#1-title}% - \else - % Use the node name inside the square brackets. - \def\printednodename{\ignorespaces #1}% - \fi - \fi - % - % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not - % insert empty discretionaries after hyphens, which means that it will - % not find a line break at a hyphen in a node names. Since some manuals - % are best written with fairly long node names, containing hyphens, this - % is a loss. Therefore, we give the text of the node name again, so it - % is as if TeX is seeing it for the first time. - \ifdim \wd1 > 0pt - \putwordsection{} ``\printednodename'' in \cite{\printedmanual}% - \else - % _ (for example) has to be the character _ for the purposes of the - % control sequence corresponding to the node, but it has to expand - % into the usual \leavevmode...\vrule stuff for purposes of - % printing. So we \turnoffactive for the \refx-snt, back on for the - % printing, back off for the \refx-pg. - {\turnoffactive \refx{#1-snt}{}}% - \space [\printednodename],\space - \turnoffactive \putwordpage\tie\refx{#1-pg}{}% - \fi -\endgroup} - -% \dosetq is the interface for calls from other macros - -% Use \turnoffactive so that punctuation chars such as underscore -% work in node names. -\def\dosetq #1#2{{\let\folio=0 \turnoffactive% -\edef\next{\write\auxfile{\internalsetq {#1}{#2}}}% -\next}} - -% \internalsetq {foo}{page} expands into -% CHARACTERS 'xrdef {foo}{...expansion of \Ypage...} -% When the aux file is read, ' is the escape character - -\def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}} - -% Things to be expanded by \internalsetq - -\def\Ypagenumber{\folio} - -\def\Ytitle{\thissection} - -\def\Ynothing{} - -\def\Ysectionnumberandtype{% -\ifnum\secno=0 \putwordChapter\xreftie\the\chapno % -\else \ifnum \subsecno=0 \putwordSection\xreftie\the\chapno.\the\secno % -\else \ifnum \subsubsecno=0 % -\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno % -\else % -\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno % -\fi \fi \fi } - -\def\Yappendixletterandtype{% -\ifnum\secno=0 \putwordAppendix\xreftie'char\the\appendixno{}% -\else \ifnum \subsecno=0 \putwordSection\xreftie'char\the\appendixno.\the\secno % -\else \ifnum \subsubsecno=0 % -\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno % -\else % -\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno % -\fi \fi \fi } - -\gdef\xreftie{'tie} - -% Use TeX 3.0's \inputlineno to get the line number, for better error -% messages, but if we're using an old version of TeX, don't do anything. -% -\ifx\inputlineno\thisisundefined - \let\linenumber = \empty % Non-3.0. -\else - \def\linenumber{\the\inputlineno:\space} -\fi - -% Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME. -% If its value is nonempty, SUFFIX is output afterward. - -\def\refx#1#2{% - \expandafter\ifx\csname X#1\endcsname\relax - % If not defined, say something at least. - $\langle$un\-de\-fined$\rangle$% - \ifhavexrefs - \message{\linenumber Undefined cross reference `#1'.}% - \else - \ifwarnedxrefs\else - \global\warnedxrefstrue - \message{Cross reference values unknown; you must run TeX again.}% - \fi - \fi - \else - % It's defined, so just use it. - \csname X#1\endcsname - \fi - #2% Output the suffix in any case. -} - -% Read the last existing aux file, if any. No error if none exists. - -% This is the macro invoked by entries in the aux file. -\def\xrdef #1#2{ -{\catcode`\'=\other\expandafter \gdef \csname X#1\endcsname {#2}}} - -\def\readauxfile{% -\begingroup -\catcode `\^^@=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\^^C=\other -\catcode `\^^D=\other -\catcode `\^^E=\other -\catcode `\^^F=\other -\catcode `\^^G=\other -\catcode `\^^H=\other -\catcode `\ =\other -\catcode `\^^L=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode 26=\other -\catcode `\^^[=\other -\catcode `\^^\=\other -\catcode `\^^]=\other -\catcode `\^^^=\other -\catcode `\^^_=\other -\catcode `\@=\other -\catcode `\^=\other -\catcode `\~=\other -\catcode `\[=\other -\catcode `\]=\other -\catcode`\"=\other -\catcode`\_=\other -\catcode`\|=\other -\catcode`\<=\other -\catcode`\>=\other -\catcode `\$=\other -\catcode `\#=\other -\catcode `\&=\other -% `\+ does not work, so use 43. -\catcode 43=\other -% Make the characters 128-255 be printing characters -{% - \count 1=128 - \def\loop{% - \catcode\count 1=\other - \advance\count 1 by 1 - \ifnum \count 1<256 \loop \fi - }% -}% -% the aux file uses ' as the escape. -% Turn off \ as an escape so we do not lose on -% entries which were dumped with control sequences in their names. -% For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^ -% Reference to such entries still does not work the way one would wish, -% but at least they do not bomb out when the aux file is read in. -\catcode `\{=1 \catcode `\}=2 -\catcode `\%=\other -\catcode `\'=0 -\catcode `\\=\other -\openin 1 \jobname.aux -\ifeof 1 \else \closein 1 \input \jobname.aux \global\havexrefstrue -\global\warnedobstrue -\fi -% Open the new aux file. Tex will close it automatically at exit. -\openout \auxfile=\jobname.aux -\endgroup} - - -% Footnotes. - -\newcount \footnoteno - -% The trailing space in the following definition for supereject is -% vital for proper filling; pages come out unaligned when you do a -% pagealignmacro call if that space before the closing brace is -% removed. -\def\supereject{\par\penalty -20000\footnoteno =0 } - -% @footnotestyle is meaningful for info output only.. -\let\footnotestyle=\comment - -\let\ptexfootnote=\footnote - -{\catcode `\@=11 -% -% Auto-number footnotes. Otherwise like plain. -\gdef\footnote{% - \global\advance\footnoteno by \@ne - \edef\thisfootno{$^{\the\footnoteno}$}% - % - % In case the footnote comes at the end of a sentence, preserve the - % extra spacing after we do the footnote number. - \let\@sf\empty - \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi - % - % Remove inadvertent blank space before typesetting the footnote number. - \unskip - \thisfootno\@sf - \footnotezzz -}% - -% Don't bother with the trickery in plain.tex to not require the -% footnote text as a parameter. Our footnotes don't need to be so general. -% -\long\gdef\footnotezzz#1{\insert\footins{% - % We want to typeset this text as a normal paragraph, even if the - % footnote reference occurs in (for example) a display environment. - % So reset some parameters. - \interlinepenalty\interfootnotelinepenalty - \splittopskip\ht\strutbox % top baseline for broken footnotes - \splitmaxdepth\dp\strutbox - \floatingpenalty\@MM - \leftskip\z@skip - \rightskip\z@skip - \spaceskip\z@skip - \xspaceskip\z@skip - \parindent\defaultparindent - % - % Hang the footnote text off the number. - \hang - \textindent{\thisfootno}% - % - % Don't crash into the line above the footnote text. Since this - % expands into a box, it must come within the paragraph, lest it - % provide a place where TeX can split the footnote. - \footstrut - #1\strut}% -} - -}%end \catcode `\@=11 - -% Set the baselineskip to #1, and the lineskip and strut size -% correspondingly. There is no deep meaning behind these magic numbers -% used as factors; they just match (closely enough) what Knuth defined. -% -\def\lineskipfactor{.08333} -\def\strutheightpercent{.70833} -\def\strutdepthpercent {.29167} -% -\def\setleading#1{% - \normalbaselineskip = #1\relax - \normallineskip = \lineskipfactor\normalbaselineskip - \normalbaselines - \setbox\strutbox =\hbox{% - \vrule width0pt height\strutheightpercent\baselineskip - depth \strutdepthpercent \baselineskip - }% -} - -% @| inserts a changebar to the left of the current line. It should -% surround any changed text. This approach does *not* work if the -% change spans more than two lines of output. To handle that, we would -% have adopt a much more difficult approach (putting marks into the main -% vertical list for the beginning and end of each change). -% -\def\|{% - % \vadjust can only be used in horizontal mode. - \leavevmode - % - % Append this vertical mode material after the current line in the output. - \vadjust{% - % We want to insert a rule with the height and depth of the current - % leading; that is exactly what \strutbox is supposed to record. - \vskip-\baselineskip - % - % \vadjust-items are inserted at the left edge of the type. So - % the \llap here moves out into the left-hand margin. - \llap{% - % - % For a thicker or thinner bar, change the `1pt'. - \vrule height\baselineskip width1pt - % - % This is the space between the bar and the text. - \hskip 12pt - }% - }% -} - -% For a final copy, take out the rectangles -% that mark overfull boxes (in case you have decided -% that the text looks ok even though it passes the margin). -% -\def\finalout{\overfullrule=0pt} - - -% End of control word definitions. - -\message{and turning on texinfo input format.} - -\def\openindices{% - \newindex{cp}% - \newcodeindex{fn}% - \newcodeindex{vr}% - \newcodeindex{tp}% - \newcodeindex{ky}% - \newcodeindex{pg}% -} - -% Set some numeric style parameters, for 8.5 x 11 format. - -%\hsize = 6.5in -\newdimen\defaultparindent \defaultparindent = 15pt -\parindent = \defaultparindent -\parskip 18pt plus 1pt -\setleading{15pt} -\advance\topskip by 1.2cm - -% Prevent underfull vbox error messages. -\vbadness=10000 - -% Following George Bush, just get rid of widows and orphans. -\widowpenalty=10000 -\clubpenalty=10000 - -% Use TeX 3.0's \emergencystretch to help line breaking, but if we're -% using an old version of TeX, don't do anything. We want the amount of -% stretch added to depend on the line length, hence the dependence on -% \hsize. This makes it come to about 9pt for the 8.5x11 format. -% -\ifx\emergencystretch\thisisundefined - % Allow us to assign to \emergencystretch anyway. - \def\emergencystretch{\dimen0}% -\else - \emergencystretch = \hsize - \divide\emergencystretch by 45 -\fi - -% Use @smallbook to reset parameters for 7x9.5 format (or else 7x9.25) -\def\smallbook{ - -% These values for secheadingskip and subsecheadingskip are -% experiments. RJC 7 Aug 1992 -\global\secheadingskip = 17pt plus 6pt minus 3pt -\global\subsecheadingskip = 14pt plus 6pt minus 3pt - -\global\lispnarrowing = 0.3in -\setleading{12pt} -\advance\topskip by -1cm -\global\parskip 3pt plus 1pt -\global\hsize = 5in -\global\vsize=7.5in -\global\tolerance=700 -\global\hfuzz=1pt -\global\contentsrightmargin=0pt -\global\deftypemargin=0pt -\global\defbodyindent=.5cm - -\global\pagewidth=\hsize -\global\pageheight=\vsize - -\global\let\smalllisp=\smalllispx -\global\let\smallexample=\smalllispx -\global\def\Esmallexample{\Esmalllisp} -} - -% Use @afourpaper to print on European A4 paper. -\def\afourpaper{ -\global\tolerance=700 -\global\hfuzz=1pt -\setleading{12pt} -\global\parskip 15pt plus 1pt - -\global\vsize= 53\baselineskip -\advance\vsize by \topskip -%\global\hsize= 5.85in % A4 wide 10pt -\global\hsize= 6.5in -\global\outerhsize=\hsize -\global\advance\outerhsize by 0.5in -\global\outervsize=\vsize -\global\advance\outervsize by 0.6in - -\global\pagewidth=\hsize -\global\pageheight=\vsize -} - -% Allow control of the text dimensions. Parameters in order: textheight; -% textwidth; \voffset; \hoffset (!); binding offset. All require a dimension; -% header is additional; added length extends the bottom of the page. - -\def\changepagesizes#1#2#3#4#5 -{\global\vsize= #1 - \advance\vsize by \topskip - \global\voffset= #3 - \global\hsize= #2 - \global\outerhsize=\hsize - \global\advance\outerhsize by 0.5in - \global\outervsize=\vsize - \global\advance\outervsize by 0.6in - \global\pagewidth=\hsize - \global\pageheight=\vsize - \global\normaloffset= #4 - \global\bindingoffset= #5} - -% This layout is compatible with Latex on A4 paper. - -\def\afourlatex{\changepagesizes{22cm}{15cm}{7mm}{4.6mm}{5mm}} - -% Define macros to output various characters with catcode for normal text. -\catcode`\"=\other -\catcode`\~=\other -\catcode`\^=\other -\catcode`\_=\other -\catcode`\|=\other -\catcode`\<=\other -\catcode`\>=\other -\catcode`\+=\other -\def\normaldoublequote{"} -\def\normaltilde{~} -\def\normalcaret{^} -\def\normalunderscore{_} -\def\normalverticalbar{|} -\def\normalless{<} -\def\normalgreater{>} -\def\normalplus{+} - -% This macro is used to make a character print one way in ttfont -% where it can probably just be output, and another way in other fonts, -% where something hairier probably needs to be done. -% -% #1 is what to print if we are indeed using \tt; #2 is what to print -% otherwise. Since all the Computer Modern typewriter fonts have zero -% interword stretch (and shrink), and it is reasonable to expect all -% typewriter fonts to have this, we can check that font parameter. -% -\def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi} - -% Turn off all special characters except @ -% (and those which the user can use as if they were ordinary). -% Most of these we simply print from the \tt font, but for some, we can -% use math or other variants that look better in normal text. - -\catcode`\"=\active -\def\activedoublequote{{\tt \char '042}} -\let"=\activedoublequote -\catcode`\~=\active -\def~{{\tt \char '176}} -\chardef\hat=`\^ -\catcode`\^=\active -\def^{{\tt \hat}} - -\catcode`\_=\active -\def_{\ifusingtt\normalunderscore\_} -% Subroutine for the previous macro. -\def\_{\lvvmode \kern.06em \vbox{\hrule width.3em height.1ex}} - -% \lvvmode is equivalent in function to \leavevmode. -% Using \leavevmode runs into trouble when written out to -% an index file due to the expansion of \leavevmode into ``\unhbox -% \voidb@x'' ---which looks to TeX like ``\unhbox \voidb\x'' due to our -% magic tricks with @. -\def\lvvmode{\vbox to 0pt{}} - -\catcode`\|=\active -\def|{{\tt \char '174}} -\chardef \less=`\< -\catcode`\<=\active -\def<{{\tt \less}} -\chardef \gtr=`\> -\catcode`\>=\active -\def>{{\tt \gtr}} -\catcode`\+=\active -\def+{{\tt \char 43}} -%\catcode 27=\active -%\def^^[{$\diamondsuit$} - -% Set up an active definition for =, but don't enable it most of the time. -{\catcode`\==\active -\global\def={{\tt \char 61}}} - -\catcode`\@=0 - -% \rawbackslashxx output one backslash character in current font -\global\chardef\rawbackslashxx=`\\ -%{\catcode`\\=\other -%@gdef@rawbackslashxx{\}} - -% \rawbackslash redefines \ as input to do \rawbackslashxx. -{\catcode`\\=\active -@gdef@rawbackslash{@let\=@rawbackslashxx }} - -% \normalbackslash outputs one backslash in fixed width font. -\def\normalbackslash{{\tt\rawbackslashxx}} - -% Say @foo, not \foo, in error messages. -\escapechar=`\@ - -% \catcode 17=0 % Define control-q -\catcode`\\=\active - -% Used sometimes to turn off (effectively) the active characters -% even after parsing them. -@def@turnoffactive{@let"=@normaldoublequote -@let\=@realbackslash -@let~=@normaltilde -@let^=@normalcaret -@let_=@normalunderscore -@let|=@normalverticalbar -@let<=@normalless -@let>=@normalgreater -@let+=@normalplus} - -@def@normalturnoffactive{@let"=@normaldoublequote -@let\=@normalbackslash -@let~=@normaltilde -@let^=@normalcaret -@let_=@normalunderscore -@let|=@normalverticalbar -@let<=@normalless -@let>=@normalgreater -@let+=@normalplus} - -% If a .fmt file is being used, we don't want the `\input texinfo' to show up. -% That is what \eatinput is for; after that, the `\' should revert to printing -% a backslash. -% -@gdef@eatinput input texinfo{@fixbackslash} -@global@let\ = @eatinput - -% On the other hand, perhaps the file did not have a `\input texinfo'. Then -% the first `\{ in the file would cause an error. This macro tries to fix -% that, assuming it is called before the first `\' could plausibly occur. -% -@gdef@fixbackslash{@ifx\@eatinput @let\ = @normalbackslash @fi} - -%% These look ok in all fonts, so just make them not special. The @rm below -%% makes sure that the current font starts out as the newly loaded cmr10 -@catcode`@$=@other @catcode`@%=@other @catcode`@&=@other @catcode`@#=@other - -@textfonts -@rm - -@c Local variables: -@c page-delimiter: "^\\\\message" -@c End: diff --git a/util/configure.in b/util/configure.in deleted file mode 100644 index 909913d..0000000 --- a/util/configure.in +++ /dev/null @@ -1,7 +0,0 @@ -AC_INIT(configure.in) -CONFIG_RULES -AC_SET_BUILDTOP -CONFIG_DIRS(et ss) -MAKE_SUBDIRS("making",all) -MAKE_SUBDIRS("cleaning",clean) -V5_AC_OUTPUT_MAKEFILE diff --git a/util/et/ChangeLog b/util/et/ChangeLog deleted file mode 100644 index 2e7f1eb..0000000 --- a/util/et/ChangeLog +++ /dev/null @@ -1,69 +0,0 @@ -Fri Nov 18 00:34:29 1994 Mark Eichin <eichin@cygnus.com> - - * configure.in: add caching to perror check (from epeisach). - -Fri Oct 21 21:06:48 1994 (tytso@rsx-11) - - * Makefile.in (SED): Don't specify an explicit pathname for sed. - -Tue Oct 11 12:43:00 1994 Theodore Y. Ts'o (tytso@dcl) - - * Makefile.in: Don't rm the awk and sed scripts during a make clean! - -Thu Oct 6 19:39:11 1994 Theodore Y. Ts'o (tytso@dcl) - - * compile_et.sh: Replace basename with sed -- more portable. - -Mon Oct 3 17:27:28 1994 Theodore Y. Ts'o (tytso@dcl) - - * Makefile.in: - configure.in: Don't try to compile compile_et. Use awk/sed - version instead. It's more apt to be portable, since it - doesn't use awk or sed. :-( - - -Fri Sep 30 17:12:15 1994 Theodore Y. Ts'o (tytso@dcl) - - * compile_et.c: Add declaration of error_message() manually. - - * internal.h: Use autoconf to determine whether or not to declare - perror(). - - * configure.in: - compiler.h: - internal.h: - compilet_et.c: - init_et.c: Let configure take care of removing const with AC_CONST. - -Thu Sep 8 22:33:07 1994 Theodore Y. Ts'o (tytso@pinata) - - * com_err.c (default_com_err_proc): Reversed order of \n\r to make - jik happy. - -Wed Jul 13 23:19:34 1994 Tom Yu (tlyu at dragons-lair) - - * Makefile.in: nuke the libcom_err.a.bak stuff - -Sun Jul 3 07:48:04 1994 Tom Yu (tlyu at dragons-lair) - - * Makefile.in: cleaning up to not spew ignored errors - -Wed Jun 22 18:47:36 1994 Mark Eichin (eichin@tweedledumber.cygnus.com) - - * com_err.h: Only set STDARG_PROTOTYPES based on STDC if it isn't - set already (clean up warnings.) - -Wed Jun 22 17:55:48 1994 Mark Eichin (eichin@cygnus.com) - - * Makefile.in (CP): set CP so CopySrcHeader actually works. - -Tue Jun 21 00:20:44 1994 Tom Yu (tlyu at dragons-lair) - - * Makefile.in: add "includes" to "all" dependencies - - * configure.in: should be CopySrcHeader - -Mon Jun 20 21:59:37 1994 Tom Yu (tlyu at dragons-lair) - - * configure.in: install com_err.h during build - diff --git a/util/et/Makefile.in b/util/et/Makefile.in deleted file mode 100644 index 0b37e72..0000000 --- a/util/et/Makefile.in +++ /dev/null @@ -1,126 +0,0 @@ -CFLAGS = $(CCOPTS) $(DEFS) $(LOCALINCLUDE) -LDFLAGS = -g -SED = sed - -INSTALLFILE = cp - -all:: - -LINTFLAGS=-uhvb -LINTFILES= error_message.c et_name.c init_et.c com_err.c -LIBOBJS= error_message.o et_name.o init_et.o com_err.o -# for et_lex.lex.c include in error_table.y -LOCALINCLUDE=-I. -I$(srcdir) - -FILES= Makefile et_name.c error_message.c compile_et.c \ - et_lex.lex.l error_table.y init_et.c \ - com_err.c com_err.h \ - error_table.h mit-sipb-copyright.h \ - test_et.c test1.et test2.et \ - compiler.h internal.h \ - com_err.texinfo texinfo.tex -CFILES= compile_et.c error_table.c error_message.c et_name.c \ - init_et.c com_err.c - -SRCS=$(CFILES) - -# -# what to build... -# - -# -# rules -# -error_table.o: et_lex.lex.c - -# -# real entries... -# - -all:: compile_et includes - -# The realm compile_et just isn't portable. (But then again, anything using -# lex and yacc isn't portable by definition. :-( ) -# -#compile_et: compile_et.o error_table.o -# $(CC) $(CFLAGS) -o $@ compile_et.o error_table.o $(LEXLIB) $(BSDLIB) -# -#install:: -# $(INSTALLPROG) compile_et ${DESTDIR}$(PROGDIR)/compile_et - -compile_et: $(srcdir)/compile_et.sh $(srcdir)/config_script - $(srcdir)/config_script $(srcdir)/compile_et.sh $(AWK) $(SED) > compile_et - chmod 755 compile_et - -et_c.awk: $(srcdir)/et_c.awk - $(CP) $(srcdir)/et_c.awk et_c.awk - -et_h.awk: $(srcdir)/et_h.awk - $(CP) $(srcdir)/et_h.awk et_h.awk - -clean:: - $(RM) compile_et compile_et.o error_table.o - -depend:: - -install:: com_err.h - $(INSTALLFILE) $(srcdir)/com_err.h $(DESTDIR)$(INCLDIR)/com_err.h - -install:: mit-sipb-copyright.h - $(INSTALLFILE) $(srcdir)/mit-sipb-copyright.h $(DESTDIR)$(INCLDIR)/mit-sipb-copyright.h - -install:: com_err.3 - $(INSTALLFILE) $(srcdir)/com_err.3 ${DESTDIR}${MANDIR}/man3/com_err.3 - -install:: compile_et.1 - $(INSTALLFILE) $(srcdir)/compile_et.1 ${DESTDIR}${MANDIR}/man1/compile_et.1 - - -## install_library_target(com_err,$(LIBOBJS),$(LINTFILES),) -all:: libcom_err.a - -libcom_err.a: $(LIBOBJS) - $(ARCHIVE) $@ $(LIBOBJS) - $(RANLIB) $@ - -clean:: - $(RM) libcom_err.a - $(RM) $(LIBOBJS) - -install:: - $(INSTALLLIB) libcom_err.a $(DESTDIR)$(LIBDIR)/libcom_err.a - $(CHMOD) 644 $(DESTDIR)$(LIBDIR)/libcom_err.a - $(RANLIB) $(DESTDIR)$(LIBDIR)/libcom_err.a - $(CHMOD) 444 $(DESTDIR)$(LIBDIR)/libcom_err.a -## - -clean:: - rm -f *~ \#* *.bak \ - *.otl *.aux *.toc *.PS *.dvi *.x9700 *.ps \ - *.cp *.fn *.ky *.log *.pg *.tp *.vr \ - *.o profiled/?*.o libcom_err.a libcom_err_p.a \ - com_err.o compile_et \ - et.ar TAGS y.tab.c lex.yy.c error_table.c \ - et_lex.lex.c \ - test1.h test1.c test2.h test2.c test_et \ - eddep makedep *.ln - - - -com_err.ps : com_err.dvi -com_err.dvi: com_err.texinfo - -libcom_err.o: $(LIBOBJS) - ld -r -s -o libcom_err.o $(LIBOBJS) - chmod -x libcom_err.o - - -archive: et.tar - -TAGS: et_name.c error_message.c compile_et.c error_table.c \ - lex.yy.c init_et.c - etags et_name.c error_message.c compile_et.c \ - error_table.c init_et.c - -depend:: et_lex.lex.c - diff --git a/util/et/com_err.3 b/util/et/com_err.3 deleted file mode 100644 index ee4375b..0000000 --- a/util/et/com_err.3 +++ /dev/null @@ -1,96 +0,0 @@ -.\" Copyright (c) 1988 Massachusetts Institute of Technology, -.\" Student Information Processing Board. All rights reserved. -.\" -.\" $Header$ -.\" -.TH COM_ERR 3 "22 Nov 1988" SIPB -.SH NAME -com_err \- common error display routine -.SH SYNOPSIS -.nf - #include <com_err.h> -.PP -void com_err (whoami, code, format, ...); - const char *whoami; - long code; - const char *format; -.PP -proc = set_com_err_hook (proc); -.fi -void (* -.I proc -) (const char *, long, const char *, va_list); -.nf -.PP -proc = reset_com_err_hook (); -.PP -void initialize_XXXX_error_table (); -.fi -.SH DESCRIPTION -.I Com_err -displays an error message on the standard error stream -.I stderr -(see -.IR stdio (3S)) -composed of the -.I whoami -string, which should specify the program name or some subportion of -a program, followed by an error message generated from the -.I code -value (derived from -.IR compile_et (1)), -and a string produced using the -.I format -string and any following arguments, in the same style as -.IR fprintf (3). - -The behavior of -.I com_err -can be modified using -.I set_com_err_hook; -this defines a procedure which is called with the arguments passed to -.I com_err, -instead of the default internal procedure which sends the formatted -text to error output. Thus the error messages from a program can all -easily be diverted to another form of diagnostic logging, such as -.IR syslog (3). -.I Reset_com_err_hook -may be used to restore the behavior of -.I com_err -to its default form. Both procedures return the previous ``hook'' -value. These ``hook'' procedures must have the declaration given for -.I proc -above in the synopsis. - -The -.I initialize_XXXX_error_table -routine is generated mechanically by -.IR compile_et (1) -from a source file containing names and associated strings. Each -table has a name of up to four characters, which is used in place of -the -.B XXXX -in the name of the routine. These routines should be called before -any of the corresponding error codes are used, so that the -.I com_err -library will recognize error codes from these tables when they are -used. - -The -.B com_err.h -header file should be included in any source file that uses routines -from the -.I com_err -library; executable files must be linked using -.I ``-lcom_err'' -in order to cause the -.I com_err -library to be included. - -.\" .IR for manual entries -.\" .PP for paragraph breaks - -.SH "SEE ALSO" -compile_et (1), syslog (3). - -Ken Raeburn, "A Common Error Description Library for UNIX". diff --git a/util/et/com_err.c b/util/et/com_err.c deleted file mode 100644 index 8860446..0000000 --- a/util/et/com_err.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Copyright 1987, 1988 by MIT Student Information Processing Board. - * - * For copyright info, see mit-sipb-copyright.h. - */ - -#include <stdio.h> -#include "mit-sipb-copyright.h" - -#ifdef STDARG_PROTOTYPES -#include <stdarg.h> -#else -#include <varargs.h> -#define VARARGS -#endif - -#include "error_table.h" -#include "internal.h" - -#ifdef notdef -/* - * Protect us from header version (externally visible) of com_err, so - * we can survive in a <varargs.h> environment. I think. - */ -#define com_err com_err_external -#include "com_err.h" -#undef com_err -#endif - -/* We have problems with varargs definitions if we include com_err.h */ - -/* - * XXX for now, we define error_message by hand. Ultimately, we - * should fix up com_err.h so that it's safe to #include here - * directly. - */ -#ifdef __STDC__ -extern char const *error_message (long); -#else -extern char *error_message (); -#endif - -static void -#ifdef __STDC__ - default_com_err_proc (const char *whoami, long code, const char *fmt, va_list args) -#else - default_com_err_proc (whoami, code, fmt, args) - const char *whoami; - long code; - const char *fmt; - va_list args; -#endif -{ - if (whoami) { - fputs(whoami, stderr); - fputs(": ", stderr); - } - if (code) { - fputs(error_message(code), stderr); - fputs(" ", stderr); - } - if (fmt) { - vfprintf (stderr, fmt, args); - } - /* should do this only on a tty in raw mode */ - putc('\r', stderr); - putc('\n', stderr); - fflush(stderr); -} - -#ifdef __STDC__ -typedef void (*errf) (const char *, long, const char *, va_list); -#else -typedef void (*errf) (); -#endif - -errf com_err_hook = default_com_err_proc; - -void com_err_va (whoami, code, fmt, args) - const char *whoami; - long code; - const char *fmt; - va_list args; -{ - (*com_err_hook) (whoami, code, fmt, args); -} - -#ifndef VARARGS -void com_err (const char *whoami, - long code, - const char *fmt, ...) -{ -#else -void com_err (va_alist) - va_dcl -{ - const char *whoami, *fmt; - long code; -#endif - va_list pvar; - - if (!com_err_hook) - com_err_hook = default_com_err_proc; -#ifdef VARARGS - va_start (pvar); - whoami = va_arg (pvar, const char *); - code = va_arg (pvar, long); - fmt = va_arg (pvar, const char *); -#else - va_start(pvar, fmt); -#endif - com_err_va (whoami, code, fmt, pvar); - va_end(pvar); -} - -errf set_com_err_hook (new_proc) - errf new_proc; -{ - errf x = com_err_hook; - - if (new_proc) - com_err_hook = new_proc; - else - com_err_hook = default_com_err_proc; - - return x; -} - -errf reset_com_err_hook () { - errf x = com_err_hook; - com_err_hook = default_com_err_proc; - return x; -} diff --git a/util/et/com_err.h b/util/et/com_err.h deleted file mode 100644 index 0190a3e..0000000 --- a/util/et/com_err.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Header file for common error description library. - * - * Copyright 1988, Student Information Processing Board of the - * Massachusetts Institute of Technology. - * - * For copyright and distribution info, see the documentation supplied - * with this package. - */ - -#ifndef __COM_ERR_H - -#ifndef STDARG_PROTOTYPES -/* Imake needs this -- oh well */ -#ifdef __STDC__ -#define STDARG_PROTOTYPES -#endif -#endif - -#ifdef STDARG_PROTOTYPES -#include <stdarg.h> -#else -#include <varargs.h> -#endif - -#ifdef __STDC__ -/* ANSI C -- use prototypes etc */ -void com_err (const char *, long, const char *, ...); -char const *error_message (long); -void (*com_err_hook) (const char *, long, const char *, va_list); -void (*set_com_err_hook (void (*) (const char *, long, const char *, va_list))) - (const char *, long, const char *, va_list); -void (*reset_com_err_hook ()) (const char *, long, const char *, va_list); -#else -/* no prototypes */ -void com_err (); -char *error_message (); -void (*com_err_hook) (); -void (*set_com_err_hook ()) (); -void (*reset_com_err_hook ()) (); -#endif - -#define __COM_ERR_H -#endif /* ! defined(__COM_ERR_H) */ diff --git a/util/et/com_err.texinfo b/util/et/com_err.texinfo deleted file mode 100644 index 2f4b266..0000000 --- a/util/et/com_err.texinfo +++ /dev/null @@ -1,554 +0,0 @@ -\input texinfo @c -*-texinfo-*- - -@c $Header$ -@c $Source$ -@c $Locker$ - -@c Note that although this source file is in texinfo format (more -@c or less), it is not yet suitable for turning into an ``info'' -@c file. Sorry, maybe next time. -@c -@c In order to produce hardcopy documentation from a texinfo file, -@c run ``tex com_err.texinfo'' which will load in texinfo.tex, -@c provided in this distribution. (texinfo.tex is from the Free -@c Software Foundation, and is under different copyright restrictions -@c from the rest of this package.) - -@ifinfo -@barfo -@end ifinfo - -@iftex -@tolerance 10000 - -@c Mutate section headers... -@begingroup - @catcode#=6 - @gdef@secheading#1#2#3{@secheadingi {#3@enspace #1}} -@endgroup -@end iftex - -@setfilename com_err -@settitle A Common Error Description Library for UNIX - -@ifinfo -This file documents the use of the Common Error Description library. - -Copyright (C) 1987, 1988 Student Information Processing Board of the -Massachusetts Institute of Technology. - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, provided -that the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be -used in advertising or publicity pertaining to distribution of the software -without specific, written prior permission. M.I.T. and the M.I.T. S.I.P.B. -make no representations about the suitability of this software for any -purpose. It is provided "as is" without express or implied warranty. - -Note that the file texinfo.tex, provided with this distribution, is from -the Free Software Foundation, and is under different copyright restrictions -from the remainder of this package. - -@end ifinfo - -@ignore -Permission is granted to process this file through Tex and print the -results, provided the printed document carries copying permission -notice identical to this one except for the removal of this paragraph -(this paragraph not being relevant to the printed manual). - -@end ignore - -@setchapternewpage odd - -@titlepage -@center @titlefont{A Common Error Description} -@center @titlefont{Library for UNIX} -@sp 2 -@center Ken Raeburn -@center Bill Sommerfeld -@sp 1 -@center MIT Student Information Processing Board -@sp 3 -@center last updated 1 January 1989 -@center for version 1.2 -@center ***DRAFT COPY ONLY*** - -@vskip 2in - -@center @b{Abstract} - -UNIX has always had a clean and simple system call interface, with a -standard set of error codes passed between the kernel and user -programs. Unfortunately, the same cannot be said of many of the -libraries layered on top of the primitives provided by the kernel. -Typically, each one has used a different style of indicating errors to -their callers, leading to a total hodgepodge of error handling, and -considerable amounts of work for the programmer. This paper describes -a library and associated utilities which allows a more uniform way for -libraries to return errors to their callers, and for programs to -describe errors and exceptional conditions to their users. - -@page -@vskip 0pt plus 1filll - -Copyright @copyright{} 1987, 1988 by the Student Information Processing -Board of the Massachusetts Institute of Technology. - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, provided -that the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be -used in advertising or publicity pertaining to distribution of the software -without specific, written prior permission. M.I.T. and the M.I.T. S.I.P.B. -make no representations about the suitability of this software for any -purpose. It is provided "as is" without express or implied warranty. - -Note that the file texinfo.tex, provided with this distribution, is from -the Free Software Foundation, and is under different copyright restrictions -from the remainder of this package. - -@end titlepage - -@ifinfo -@c should put a menu here someday.... -@end ifinfo - -@page - -@section Why com_err? - -In building application software packages, a programmer often has to -deal with a number of libraries, each of which can use a different -error-reporting mechanism. Sometimes one of two values is returned, -indicating simply SUCCESS or FAILURE, with no description of errors -encountered. Sometimes it is an index into a table of text strings, -where the name of the table used is dependent on the library being -used when the error is generated; since each table starts numbering at -0 or 1, additional information as to the source of the error code is -needed to determine which table to look at. Sometimes no text messages are -supplied at all, and the programmer must supply them at any point at which -he may wish to report error conditions. -Often, a global variable is assigned some value describing the error, but -the programmer has to know in each case whether to look at @code{errno}, -@code{h_errno}, the return value from @code{hes_err()}, or whatever other -variables or routines are specified. -And what happens if something -in the procedure of -examining or reporting the error changes the same variable? - -The package we have developed is an attempt to present a common -error-handling mechanism to manipulate the most common form of error code -in a fashion that does not have the problems listed above. - -A list of up to 256 text messages is supplied to a translator we have -written, along with the three- to four-character ``name'' of the error -table. The library using this error table need only call a routine -generated from this error-table source to make the table ``known'' to the -com_err library, and any error code the library generates can be converted -to the corresponding error message. There is also a default format for -error codes accidentally returned before making the table known, which is -of the form @samp{unknown code foo 32}, where @samp{foo} would be the name -of the table. - -@section Error codes - -Error codes themselves are 32 bit (signed) integers, of which the high -order 24 bits are an identifier of which error table the error code is -from, and the low order 8 bits are a sequential error number within -the table. An error code may thus be easily decomposed into its component -parts. Only the lowest 32 bits of an error code are considered significant -on systems which support wider values. - -Error table 0 is defined to match the UNIX system call error table -(@code{sys_errlist}); this allows @code{errno} values to be used directly -in the library (assuming that @code{errno} is of a type with the same width -as @t{long}). Other error table numbers are formed by compacting together -the first four characters of the error table name. The mapping between -characters in the name and numeric values in the error code are defined in -a system-independent fashion, so that two systems that can pass integral -values between them can reliably pass error codes without loss of meaning; -this should work even if the character sets used are not the same. -(However, if this is to be done, error table 0 should be avoided, since the -local system call error tables may differ.) - -Any variable which is to contain an error code should be declared @t{long}. -The draft proposed American National Standard for C (as of May, 1988) -requires that @t{long} variables be at least 32 bits; any system which does -not support 32-bit @t{long} values cannot make use of this package (nor -much other software that assumes an ANSI-C environment base) without -significant effort. - -@section Error table source file - -The error table source file begins with the declaration of the table name, -as - -@example -error_table @var{tablename} -@end example - -Individual error codes are -specified with - -@example -error_code @var{ERROR_NAME}, @var{"text message"} -@end example - -where @samp{ec} can also be used as a short form of @samp{error_code}. To -indicate the end of the table, use @samp{end}. Thus, a (short) sample -error table might be: - -@example - - error_table dsc - - error_code DSC_DUP_MTG_NAME, - "Meeting already exists" - - ec DSC_BAD_PATH, - "A bad meeting pathname was given" - - ec DSC_BAD_MODES, - "Invalid mode for this access control list" - - end - -@end example - -@section The error-table compiler - -The error table compiler is named @code{compile_et}. It takes one -argument, the pathname of a file (ending in @samp{.et}, e.g., -@samp{dsc_err.et}) containing an error table source file. It parses the -error table, and generates two output files -- a C header file -(@samp{discuss_err.h}) which contains definitions of the numerical values -of the error codes defined in the error table, and a C source file which -should be compiled and linked with the executable. The header file must be -included in the source of a module which wishes to reference the error -codes defined; the object module generated from the C code may be linked in -to a program which wishes to use the printed forms of the error codes. - -This translator accepts a @kbd{-language @var{lang}} argument, which -determines for which language (or language variant) the output should be -written. At the moment, @var{lang} is currently limited to @kbd{ANSI-C} -and @kbd{K&R-C}, and some abbreviated forms of each. Eventually, this will -be extended to include some support for C++. The default is currently -@kbd{K&R-C}, though the generated sources will have ANSI-C code -conditionalized on the symbol @t{__STDC__}. - -@section Run-time support routines - -Any source file which uses the routines supplied with or produced by the -com_err package should include the header file @file{<com_err.h>}. It -contains declarations and definitions which may be needed on some systems. -(Some functions cannot be referenced properly without the return type -declarations in this file. Some functions may work properly on most -architectures even without the header file, but relying on this is not -recommended.) - -The run-time support routines and variables provided via this package -include the following: - -@example -void initialize_@var{xxxx}_error_table (void); -@end example - -One of these routines is built by the error compiler for each error table. -It makes the @var{xxxx} error table ``known'' to the error reporting -system. By convention, this routine should be called in the initialization -routine of the @var{xxxx} library. If the library has no initialization -routine, some combination of routines which form the core of the library -should ensure that this routine is called. It is not advised to leave it -the caller to make this call. - -There is no harm in calling this routine more than once. - -@example -#define ERROR_TABLE_BASE_@var{xxxx} @var{nnnnn}L -@end example - -This symbol contains the value of the first error code entry in the -specified table. -This rarely needs be used by the -programmer. - -@example -const char *error_message (long code); -@end example - -This routine returns the character string error message associated -with @code{code}; if this is associated with an unknown error table, or -if the code is associated with a known error table but the code is not -in the table, a string of the form @samp{Unknown code @var{xxxx nn}} is -returned, where @var{xxxx} is the error table name produced by -reversing the compaction performed on the error table number implied -by that error code, and @var{nn} is the offset from that base value. - -Although this routine is available for use when needed, its use should be -left to circumstances which render @code{com_err} (below) unusable. - -@example -void com_err (const char *whoami, /* module reporting error */ - long code, /* error code */ - const char *format, /* format for additional detail */ - ...); /* (extra parameters) */ -@end example - -This routine provides an alternate way to print error messages to -standard error; it allows the error message to be passed in as a -parameter, rather than in an external variable. @emph{Provide grammatical -context for ``message.''} - -If @var{format} is @code{(char *)NULL}, the formatted message will not be -printed. @var{format} may not be omitted. - -@example -#include <stdarg.h> - -void com_err_va (const char *whoami, - long code, - const char *format, - va_list args); -@end example - -This routine provides an interface, equivalent to @code{com_err} above, -which may be used by higher-level variadic functions (functions which -accept variable numbers of arguments). - -@example -#include <stdarg.h> - -void (*set_com_err_hook (void (*proc) ())) (); - -void (*@var{proc}) (const char *whoami, long code, va_list args); - -void reset_com_err_hook (); -@end example - -These two routines allow a routine to be dynamically substituted for -@samp{com_err}. After @samp{set_com_err_hook} has been called, -calls to @samp{com_err} will turn into calls to the new hook routine. -@samp{reset_com_err_hook} turns off this hook. This may intended to -be used in daemons (to use a routine which calls @var{syslog(3)}), or -in a window system application (which could pop up a dialogue box). - -If a program is to be used in an environment in which simply printing -messages to the @code{stderr} stream would be inappropriate (such as in a -daemon program which runs without a terminal attached), -@code{set_com_err_hook} may be used to redirect output from @code{com_err}. -The following is an example of an error handler which uses @var{syslog(3)} -as supplied in BSD 4.3: - -@example -#include <stdio.h> -#include <stdarg.h> -#include <syslog.h> - -/* extern openlog (const char * name, int logopt, int facility); */ -/* extern syslog (int priority, char * message, ...); */ - -void hook (const char * whoami, long code, - const char * format, va_list args) -@{ - char buffer[BUFSIZ]; - static int initialized = 0; - if (!initialized) @{ - openlog (whoami, - LOG_NOWAIT|LOG_CONS|LOG_PID|LOG_NDELAY, - LOG_DAEMON); - initialized = 1; - @} - vsprintf (buffer, format, args); - syslog (LOG_ERR, "%s %s", error_message (code), buffer); -@} -@end example - -After making the call -@code{set_com_err_hook (hook);}, -any calls to @code{com_err} will result in messages being sent to the -@var{syslogd} daemon for logging. -The name of the program, @samp{whoami}, is supplied to the -@samp{openlog()} call, and the message is formatted into a buffer and -passed to @code{syslog}. - -Note that since the extra arguments to @code{com_err} are passed by -reference via the @code{va_list} value @code{args}, the hook routine may -place any form of interpretation on them, including ignoring them. For -consistency, @code{printf}-style interpretation is suggested, via -@code{vsprintf} (or @code{_doprnt} on BSD systems without full support for -the ANSI C library). - -@section Coding Conventions - -The following conventions are just some general stylistic conventions -to follow when writing robust libraries and programs. Conventions -similar to this are generally followed inside the UNIX kernel and most -routines in the Multics operating system. In general, a routine -either succeeds (returning a zero error code, and doing some side -effects in the process), or it fails, doing minimal side effects; in -any event, any invariant which the library assumes must be maintained. - -In general, it is not in the domain of non user-interface library -routines to write error messages to the user's terminal, or halt the -process. Such forms of ``error handling'' should be reserved for -failures of internal invariants and consistancy checks only, as it -provides the user of the library no way to clean up for himself in the -event of total failure. - -Library routines which can fail should be set up to return an error -code. This should usually be done as the return value of the -function; if this is not acceptable, the routine should return a -``null'' value, and put the error code into a parameter passed by -reference. - -Routines which use the first style of interface can be used from -user-interface levels of a program as follows: - -@example -@{ - if ((code = initialize_world(getuid(), random())) != 0) @{ - com_err("demo", code, - "when trying to initialize world"); - exit(1); - @} - if ((database = open_database("my_secrets", &code))==NULL) @{ - com_err("demo", code, - "while opening my_secrets"); - exit(1); - @} -@} -@end example - -A caller which fails to check the return status is in error. It is -possible to look for code which ignores error returns by using lint; -look for error messages of the form ``foobar returns value which is -sometimes ignored'' or ``foobar returns value which is always -ignored.'' - -Since libraries may be built out of other libraries, it is often necessary -for the success of one routine to depend on another. When a lower level -routine returns an error code, the middle level routine has a few possible -options. It can simply return the error code to its caller after doing -some form of cleanup, it can substitute one of its own, or it can take -corrective action of its own and continue normally. For instance, a -library routine which makes a ``connect'' system call to make a network -connection may reflect the system error code @code{ECONNREFUSED} -(Connection refused) to its caller, or it may return a ``server not -available, try again later,'' or it may try a different server. - -Cleanup which is typically necessary may include, but not be limited -to, freeing allocated memory which will not be needed any more, -unlocking concurrancy locks, dropping reference counts, closing file -descriptors, or otherwise undoing anything which the procedure did up -to this point. When there are a lot of things which can go wrong, it -is generally good to write one block of error-handling code which is -branched to, using a goto, in the event of failure. A common source -of errors in UNIX programs is failing to close file descriptors on -error returns; this leaves a number of ``zombied'' file descriptors -open, which eventually causes the process to run out of file -descriptors and fall over. - -@example -@{ - FILE *f1=NULL, *f2=NULL, *f3=NULL; - int status = 0; - - if ( (f1 = fopen(FILE1, "r")) == NULL) @{ - status = errno; - goto error; - @} - - /* - * Crunch for a while - */ - - if ( (f2 = fopen(FILE2, "w")) == NULL) @{ - status = errno; - goto error; - @} - - if ( (f3 = fopen(FILE3, "a+")) == NULL) @{ - status = errno; - goto error; - @} - - /* - * Do more processing. - */ - fclose(f1); - fclose(f2); - fclose(f3); - return 0; - -error: - if (f1) fclose(f1); - if (f2) fclose(f2); - if (f3) fclose(f3); - return status; -@} -@end example - -@section Building and Installation - -The distribution of this package will probably be done as a compressed -``tar''-format file available via anonymous FTP from SIPB.MIT.EDU. -Retrieve @samp{pub/com_err.tar.Z} and extract the contents. A subdirectory -@t{profiled} should be created to hold objects compiled for profiling. -Running ``make all'' should then be sufficient to build the library and -error-table compiler. The files @samp{libcom_err.a}, -@samp{libcom_err_p.a}, @samp{com_err.h}, and @samp{compile_et} should be -installed for use; @samp{com_err.3} and @samp{compile_et.1} can also be -installed as manual pages. - -Potential problems: - -@itemize @bullet - -@item Use of @code{strcasecmp}, a routine provided in BSD for -case-insensitive string comparisons. If an equivalent routine is -available, you can modify @code{CFLAGS} in the makefile to define -@code{strcasecmp} to the name of that routine. - -@item Compilers that defined @code{__STDC__} without providing the header -file @code{<stdarg.h>}. One such example is Metaware's High ``C'' -compiler, as provided at Project Athena on the IBM RT/PC workstation; if -@code{__HIGHC__} is defined, it is assumed that @code{<stdarg.h>} is not -available, and therefore @code{<varargs.h>} must be used. If the symbol -@code{VARARGS} is defined (e.g., in the makefile), @code{<varargs.h>} will -be used. - -@item If your linker rejects symbols that are simultaneously defined in two -library files, edit @samp{Makefile} to remove @samp{perror.c} from the -library. This file contains a version of @var{perror(3)} which calls -@code{com_err} instead of calling @code{write} directly. - -@end itemize - -As I do not have access to non-BSD systems, there are probably -bugs present that may interfere with building or using this package on -other systems. If they are reported to me, they can probably be fixed for -the next version. - -@section Bug Reports - -Please send any comments or bug reports to the principal author: Ken -Raeburn, @t{Raeburn@@Athena.MIT.EDU}. - -@section Acknowledgements - -I would like to thank: Bill Sommerfeld, for his help with some of this -documentation, and catching some of the bugs the first time around; -Honeywell Information Systems, for not killing off the @emph{Multics} -operating system before I had an opportunity to use it; Honeywell's -customers, who persuaded them not to do so, for a while; Ted Anderson of -CMU, for catching some problems before version 1.2 left the nest; Stan -Zanarotti and several others of MIT's Student Information Processing Board, -for getting us started with ``discuss,'' for which this package was -originally written; and everyone I've talked into --- I mean, asked to read -this document and the ``man'' pages. - -@bye diff --git a/util/et/compile_et.1 b/util/et/compile_et.1 deleted file mode 100644 index f17a278..0000000 --- a/util/et/compile_et.1 +++ /dev/null @@ -1,79 +0,0 @@ -.\" Copyright (c) 1988 Massachusetts Institute of Technology, -.\" Student Information Processing Board. All rights reserved. -.\" -.\" $Header$ -.\" -.TH COMPILE_ET 1 "22 Nov 1988" SIPB -.SH NAME -compile_et \- error table compiler -.SH SYNOPSIS -.B compile_et -file -.SH DESCRIPTION -.B Compile_et -converts a table listing error-code names and associated messages into -a C source file suitable for use with the -.IR com_err (3) -library. - -The source file name must end with a suffix of ``.et''; the file -consists of a declaration supplying the name (up to four characters -long) of the error-code table: - -.B error_table -.I name - -followed by up to 256 entries of the form: - -.B error_code -.I name, -" -.I string -" - -and a final - -.B end - -to indicate the end of the table. - -The name of the table is used to construct the name of a subroutine -.I initialize_XXXX_error_table -which must be called in order for the -.I com_err -library to recognize the error table. - -The various error codes defined are assigned sequentially increasing -numbers (starting with a large number computed as a hash function of -the name of the table); thus for compatibility it is suggested that -new codes be added only to the end of an existing table, and that no -codes be removed from tables. - -The names defined in the table are placed into a C header file with -preprocessor directives defining them as integer constants of up to -32 bits in magnitude. - -A C source file is also generated which should be compiled and linked -with the object files which reference these error codes; it contains -the text of the messages and the initialization subroutine. Both C -files have names derived from that of the original source file, with -the ``.et'' suffix replaced by ``.c'' and ``.h''. - -A ``#'' in the source file is treated as a comment character, and all -remaining text to the end of the source line will be ignored. - -.SH BUGS - -Since -.B compile_et -uses a very simple parser based on -.IR yacc (1), -its error recovery leaves much to be desired. - -.\" .IR for manual entries -.\" .PP for paragraph breaks - -.SH "SEE ALSO" -com_err (3). - -Ken Raeburn, "A Common Error Description Library for UNIX". diff --git a/util/et/compile_et.c b/util/et/compile_et.c deleted file mode 100644 index a6bf02c..0000000 --- a/util/et/compile_et.c +++ /dev/null @@ -1,350 +0,0 @@ -/* - * - * Copyright 1986, 1987, 1988 - * by MIT Student Information Processing Board. - * - * For copyright info, see "mit-sipb-copyright.h". - * - */ - -#include <stdio.h> -#include <sys/types.h> -#include <sys/file.h> -#include <string.h> -#include <sys/param.h> -#include "mit-sipb-copyright.h" -#include "compiler.h" - -#ifndef lint -static const char copyright[] = - "Copyright 1987,1988 by MIT Student Information Processing Board"; -#endif - -extern char *gensym(); -extern char *current_token; -extern int table_number, current; -char buffer[BUFSIZ]; -char *table_name = (char *)NULL; -FILE *hfile, *cfile; - -/* C library */ -extern char *malloc(); -extern int errno; - -/* lex stuff */ -extern FILE *yyin; -extern int yylineno; - -char * xmalloc (size) unsigned int size; { - char * p = malloc (size); - if (!p) { - perror (whoami); - exit (1); - } - return p; -} - -static int check_arg (str_list, arg) char const *const *str_list, *arg; { - while (*str_list) - if (!strcmp(arg, *str_list++)) - return 1; - return 0; -} - -static const char *const debug_args[] = { - "d", - "debug", - 0, -}; - -static const char *const lang_args[] = { - "lang", - "language", - 0, -}; - -static const char *const language_names[] = { - "C", - "K&R C", - "C++", - 0, -}; - -static const char * const c_src_prolog[] = { - "static const char * const text[] = {\n", - 0, -}; - -static const char * const krc_src_prolog[] = { - "#ifdef __STDC__\n", - "#define NOARGS void\n", - "#else\n", - "#define NOARGS\n", - "#define const\n", - "#endif\n\n", - "static const char * const text[] = {\n", - 0, -}; - -static const char *const struct_def[] = { - "struct error_table {\n", - " char const * const * msgs;\n", - " long base;\n", - " int n_msgs;\n", - "};\n", - "struct et_list {\n", - " struct et_list *next;\n", - " const struct error_table * table;\n", - "};\n", - "extern struct et_list *_et_list;\n", - "\n", 0, -}; - -static const char warning[] = - "/*\n * %s:\n * This file is automatically generated; please do not edit it.\n */\n"; - -/* pathnames */ -char c_file[MAXPATHLEN]; /* output file */ -char h_file[MAXPATHLEN]; /* output */ - -static void usage () { - fprintf (stderr, "%s: usage: %s ERROR_TABLE\n", - whoami, whoami); - exit (1); -} - -static void dup_err (type, one, two) char const *type, *one, *two; { - fprintf (stderr, "%s: multiple %s specified: `%s' and `%s'\n", - whoami, type, one, two); - usage (); -} - -int main (argc, argv) int argc; char **argv; { - char *p, *ename; - int len; - char const * const *cpp; - int got_language = 0; - - /* argument parsing */ - debug = 0; - filename = 0; - whoami = argv[0]; - p = strrchr (whoami, '/'); - if (p) - whoami = p+1; - while (argv++, --argc) { - char *arg = *argv; - if (arg[0] != '-') { - if (filename) - dup_err ("filenames", filename, arg); - filename = arg; - } - else { - arg++; - if (check_arg (debug_args, arg)) - debug++; - else if (check_arg (lang_args, arg)) { - got_language++; - arg = *++argv, argc--; - if (!arg) - usage (); - if (language) - dup_err ("languanges", language_names[(int)language], arg); -#define check_lang(x,v) else if (!strcasecmp(arg,x)) language = v - check_lang ("c", lang_C); - check_lang ("ansi_c", lang_C); - check_lang ("ansi-c", lang_C); - check_lang ("krc", lang_KRC); - check_lang ("kr_c", lang_KRC); - check_lang ("kr-c", lang_KRC); - check_lang ("k&r-c", lang_KRC); - check_lang ("k&r_c", lang_KRC); - check_lang ("c++", lang_CPP); - check_lang ("cplusplus", lang_CPP); - check_lang ("c-plus-plus", lang_CPP); -#undef check_lang - else { - fprintf (stderr, "%s: unknown language name `%s'\n", - whoami, arg); - fprintf (stderr, "\tpick one of: C K&R-C\n"); - exit (1); - } - } - else { - fprintf (stderr, "%s: unknown control argument -`%s'\n", - whoami, arg); - usage (); - } - } - } - if (!filename) - usage (); - if (!got_language) - language = lang_KRC; - else if (language == lang_CPP) { - fprintf (stderr, "%s: Sorry, C++ support is not yet finished.\n", - whoami); - exit (1); - } - - p = xmalloc (strlen (filename) + 5); - strcpy (p, filename); - filename = p; - p = strrchr(filename, '/'); - if (p == (char *)NULL) - p = filename; - else - p++; - ename = p; - len = strlen (ename); - p += len - 3; - if (strcmp (p, ".et")) - p += 3; - *p++ = '.'; - /* now p points to where "et" suffix should start */ - /* generate new filenames */ - strcpy (p, "c"); - strcpy (c_file, ename); - *p = 'h'; - strcpy (h_file, ename); - strcpy (p, "et"); - - yyin = fopen(filename, "r"); - if (!yyin) { - perror(filename); - exit(1); - } - - hfile = fopen(h_file, "w"); - if (hfile == (FILE *)NULL) { - perror(h_file); - exit(1); - } - fprintf (hfile, warning, h_file); - - cfile = fopen(c_file, "w"); - if (cfile == (FILE *)NULL) { - perror(c_file); - exit(1); - } - fprintf (cfile, warning, c_file); - - /* prologue */ - if (language == lang_C) - cpp = c_src_prolog; - else if (language == lang_KRC) - cpp = krc_src_prolog; - else - abort (); - while (*cpp) - fputs (*cpp++, cfile); - - /* parse it */ - yyparse(); - fclose(yyin); /* bye bye input file */ - - fputs (" 0\n};\n\n", cfile); - for (cpp = struct_def; *cpp; cpp++) - fputs (*cpp, cfile); - fprintf(cfile, - "static const struct error_table et = { text, %ldL, %d };\n\n", - table_number, current); - fputs("static struct et_list link = { 0, 0 };\n\n", - cfile); - fprintf(cfile, "void initialize_%s_error_table (%s) {\n", - table_name, (language == lang_C) ? "void" : "NOARGS"); - fputs(" if (!link.table) {\n", cfile); - fputs(" link.next = _et_list;\n", cfile); - fputs(" link.table = &et;\n", cfile); - fputs(" _et_list = &link;\n", cfile); - fputs(" }\n", cfile); - fputs("}\n", cfile); - fclose(cfile); - - fprintf (hfile, "extern void initialize_%s_error_table ();\n", - table_name); - fprintf (hfile, "#define ERROR_TABLE_BASE_%s (%ldL)\n", - table_name, table_number); - /* compatibility... */ - fprintf (hfile, "\n/* for compatibility with older versions... */\n"); - fprintf (hfile, "#define init_%s_err_tbl initialize_%s_error_table\n", - table_name, table_name); - fprintf (hfile, "#define %s_err_base ERROR_TABLE_BASE_%s\n", table_name, - table_name); - fclose(hfile); /* bye bye include file */ - - return 0; -} - -int yyerror(s) char *s; { - fputs(s, stderr); -#ifdef NO_YYLINENO - fprintf(stderr, "\nLast token was '%s'\n", current_token); -#else - fprintf(stderr, "\nLine number %d; last token was '%s'\n", - yylineno, current_token); -#endif -} - -#ifdef NEED_STRCASECMP -/* Need strcasecmp for this machine */ -/* - * Copyright (c) 1987 Regents of the University of California. - * All rights reserved. The Berkeley software License Agreement - * specifies the terms and conditions for redistribution. - */ - -/* based on @(#)strcasecmp.c 1.3 (Berkeley) 8/3/87 */ - -/* - * This array is designed for mapping upper and lower case letter - * together for a case independent comparison. The mappings are - * based upon ascii character sequences. - */ -static char charmap[] = { - '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007', - '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017', - '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027', - '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037', - '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047', - '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057', - '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067', - '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077', - '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147', - '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', - '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', - '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137', - '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147', - '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', - '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', - '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177', - '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207', - '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217', - '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227', - '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237', - '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247', - '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257', - '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267', - '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277', - '\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347', - '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', - '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367', - '\370', '\371', '\372', '\333', '\334', '\335', '\336', '\337', - '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347', - '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', - '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367', - '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377', -}; - -strcasecmp(s1, s2) - register char *s1, *s2; -{ - register char *cm = charmap; - - while (cm[*s1] == cm[*s2++]) - if (*s1++ == '\0') - return(0); - return(cm[*s1] - cm[*--s2]); -} - -#endif diff --git a/util/et/compile_et.sh b/util/et/compile_et.sh deleted file mode 100755 index 2b17bff..0000000 --- a/util/et/compile_et.sh +++ /dev/null @@ -1,11 +0,0 @@ -#!/bin/sh -# -# -AWK=@AWK@ -DIR=@DIR@ - -ROOT=`echo $1 | sed -e s/.et$//` -BASE=`echo $ROOT | sed -e 's;.*/;;'` - -$AWK -f ${DIR}/et_h.awk outfile=${BASE}.h $ROOT.et -$AWK -f ${DIR}/et_c.awk outfile=${BASE}.c $ROOT.et diff --git a/util/et/compiler.h b/util/et/compiler.h deleted file mode 100644 index 3e23f12..0000000 --- a/util/et/compiler.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * definitions common to the source files of the error table compiler - */ - -enum lang { - lang_C, /* ANSI C (default) */ - lang_KRC, /* C: ANSI + K&R */ - lang_CPP /* C++ */ -}; - -int debug; /* dump debugging info? */ -char *filename; /* error table source */ -enum lang language; -const char *whoami; diff --git a/util/et/config.log b/util/et/config.log deleted file mode 100644 index fb9038e..0000000 --- a/util/et/config.log +++ /dev/null @@ -1,3 +0,0 @@ -This file contains any messages produced by compilers while -running configure, to aid debugging if configure makes a mistake. - diff --git a/util/et/config_script b/util/et/config_script deleted file mode 100755 index e3de35c..0000000 --- a/util/et/config_script +++ /dev/null @@ -1,25 +0,0 @@ -#!/bin/sh -# -# This program takes a shell script and configures for the following -# variables: @DIR@ -# @AWK@ -# @SED@ -# -# Usage: config_script <filename> [<awk>] [<sed>] -# - -FILE=$1 -AWK=$2 -SED=$3 - -# Grr.... not all Unix's have the dirname command -TMP=`echo $1 | sed -e 's;[^/]*$;;' -e 's/^$/./'` -DIR=`cd ${TMP}; pwd` - -if test "${AWK}x" = "x" ; then - AWK=awk -fi -if test "${SED}x" = "x" ; then - SED=sed -fi -sed -e "s;@DIR@;${DIR};" -e "s;@AWK@;${AWK};" -e "s;@SED@;${SED};" $FILE diff --git a/util/et/configure b/util/et/configure deleted file mode 100755 index e67c5da..0000000 --- a/util/et/configure +++ /dev/null @@ -1,1200 +0,0 @@ -#!/bin/sh - - -# Guess values for system-dependent variables and create Makefiles. -# Generated automatically using autoconf version 2.1 -# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. -# -# This configure script is free software; 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done -rm -f conftest.subs - -EOF -cat >> $CONFIG_STATUS <<EOF -cat pre.out Makefile.out post.out > Makefile -EOF -cat >> $CONFIG_STATUS <<\EOF - -cat >> Makefile <<"SUBDIREOF" -# [DIVERSION_MAKEFILE] contents - -SHELL=/bin/sh - -Makefile: $(srcdir)/Makefile.in config.status $(SRCTOP)/config/pre.in $(SRCTOP)/config/post.in - $(SHELL) config.status -config.status: $(srcdir)/configure - $(SHELL) config.status --recheck -$(srcdir)/configure: $(srcdir)/configure.in $(SRCTOP)/aclocal.m4 - cd $(srcdir); autoconf --localdir=$(BUILDTOP) --macrodir=$(BUILDTOP)/util/autoconf - - -includes:: com_err.h - @if test -d $(BUILDTOP)/include; then :; else mkdir $(BUILDTOP)/include; fi - @if cmp $(srcdir)/com_err.h $(BUILDTOP)/include/com_err.h >/dev/null 2>&1; then :; \ - else \ - (set -x; $(RM) $(BUILDTOP)/include/com_err.h; $(CP) $(srcdir)/com_err.h $(BUILDTOP)/include/com_err.h) \ - fi - -clean:: - $(RM) $(BUILDTOP)/include/com_err.h - - -SUBDIREOF - -exit 0 -EOF -chmod +x $CONFIG_STATUS -rm -fr confdefs* $ac_clean_files -test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS - diff --git a/util/et/configure.in b/util/et/configure.in deleted file mode 100644 index 1e44821..0000000 --- a/util/et/configure.in +++ /dev/null @@ -1,26 +0,0 @@ -AC_INIT(error_table.y) -CONFIG_RULES -AC_SET_BUILDTOP -AC_CONST -AC_PROG_LEX -AC_PROG_YACC -AC_PROG_AWK -AC_PROG_ARCHIVE -AC_PROG_RANLIB -HAVE_YYLINENO -DECLARE_SYS_ERRLIST -dnl -dnl Fancy caching of perror result... -AC_MSG_CHECKING(for perror declaration) -AC_CACHE_VAL(krb5_cv_decl_perror, -[AC_HEADER_EGREP(perror, errno.h, - krb5_cv_decl_perror=yes, krb5_cv_decl_perror=no)])dnl -AC_MSG_RESULT($krb5_cv_decl_perror) -if test $krb5_cv_decl_perror = yes; then - AC_DEFINE(HDR_HAS_PERROR) -fi -dnl -CHECK_STDARG -AC_HAVE_HEADERS(stdlib.h) -CopySrcHeader(com_err.h,$(BUILDTOP)/include) -V5_AC_OUTPUT_MAKEFILE diff --git a/util/et/error_message.c b/util/et/error_message.c deleted file mode 100644 index 507e0f1..0000000 --- a/util/et/error_message.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * util/et/error_message.c - * - * Copyright 1987 by the Student Information Processing Board - * of the Massachusetts Institute of Technology - * - * For copyright info, see "mit-sipb-copyright.h". - */ - -#include <stdio.h> -#include "error_table.h" -#include "mit-sipb-copyright.h" -#include "internal.h" - -static const char copyright[] = - "Copyright 1986, 1987, 1988 by the Student Information Processing Board\nand the department of Information Systems\nof the Massachusetts Institute of Technology"; - -static char buffer[25]; - -struct et_list * _et_list = (struct et_list *) NULL; - -const char * error_message (code) -long code; -{ - int offset; - struct et_list *et; - int table_num; - int started = 0; - char *cp; - - offset = code & ((1<<ERRCODE_RANGE)-1); - table_num = code - offset; - if (!table_num) { - if (offset < sys_nerr) - return(sys_errlist[offset]); - else - goto oops; - } - for (et = _et_list; et; et = et->next) { - if (et->table->base == table_num) { - /* This is the right table */ - if (et->table->n_msgs <= offset) - goto oops; - return(et->table->msgs[offset]); - } - } -oops: - strcpy (buffer, "Unknown code "); - if (table_num) { - strcat (buffer, error_table_name (table_num)); - strcat (buffer, " "); - } - for (cp = buffer; *cp; cp++) - ; - if (offset >= 100) { - *cp++ = '0' + offset / 100; - offset %= 100; - started++; - } - if (started || offset >= 10) { - *cp++ = '0' + offset / 10; - offset %= 10; - } - *cp++ = '0' + offset; - *cp = '\0'; - return(buffer); -} diff --git a/util/et/error_table.h b/util/et/error_table.h deleted file mode 100644 index 78f7db2..0000000 --- a/util/et/error_table.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Copyright 1988 by the Student Information Processing Board of the - * Massachusetts Institute of Technology. - * - * For copyright info, see mit-sipb-copyright.h. - */ - -#ifndef _ET_H -/* Are we using ANSI C? */ -#ifndef __STDC__ -#define const -#endif -extern int errno; -struct error_table { - char const * const * msgs; - long base; - int n_msgs; -}; -struct et_list { - struct et_list *next; - const struct error_table *table; -}; -extern struct et_list * _et_list; - -#define ERRCODE_RANGE 8 /* # of bits to shift table number */ -#define BITS_PER_CHAR 6 /* # bits to shift per character in name */ - -extern const char *error_table_name(); -#define _ET_H -#endif diff --git a/util/et/error_table.y b/util/et/error_table.y deleted file mode 100644 index ad4ffb1..0000000 --- a/util/et/error_table.y +++ /dev/null @@ -1,230 +0,0 @@ -%{ -#include <stdio.h> -char *str_concat(), *ds(), *quote(); -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -char *current_token = (char *)NULL; -extern char *table_name; -%} -%union { - char *dynstr; -} - -%token ERROR_TABLE ERROR_CODE_ENTRY END -%token <dynstr> STRING QUOTED_STRING -%type <dynstr> ec_name description table_id -%{ -%} -%start error_table -%% - -error_table : ERROR_TABLE table_id error_codes END - { table_name = ds($2); - current_token = table_name; - put_ecs(); } - ; - -table_id : STRING - { current_token = $1; - set_table_num($1); - $$ = $1; } - ; - -error_codes : error_codes ec_entry - | ec_entry - ; - -ec_entry : ERROR_CODE_ENTRY ec_name ',' description - { add_ec($2, $4); - free($2); - free($4); } - | ERROR_CODE_ENTRY ec_name '=' STRING ',' description - { add_ec_val($2, $4, $6); - free($2); - free($4); - free($6); - } - ; - -ec_name : STRING - { $$ = ds($1); - current_token = $$; } - ; - -description : QUOTED_STRING - { $$ = ds($1); - current_token = $$; } - ; - -%% -/* - * - * Copyright 1986, 1987 by the MIT Student Information Processing Board - * - * For copyright info, see mit-sipb-copyright.h. - */ - -#include <string.h> -#include <assert.h> -#include <ctype.h> -#include <sys/types.h> -#include <sys/time.h> -#include "internal.h" -#include "error_table.h" -#include "mit-sipb-copyright.h" - - -extern FILE *hfile, *cfile; - -static long gensym_n = 0; -char * -gensym(x) - char const *x; -{ - char *symbol; - if (!gensym_n) { - struct timeval tv; - struct timezone tzp; - gettimeofday(&tv, &tzp); - gensym_n = (tv.tv_sec%10000)*100 + tv.tv_usec/10000; - } - symbol = malloc(32 * sizeof(char)); - gensym_n++; - sprintf(symbol, "et%ld", gensym_n); - return(symbol); -} - -char * -ds(string) - char const *string; -{ - char *rv; - rv = malloc(strlen(string)+1); - strcpy(rv, string); - return(rv); -} - -char * -quote(string) - char const *string; -{ - char *rv; - rv = malloc(strlen(string)+3); - strcpy(rv, "\""); - strcat(rv, string); - strcat(rv, "\""); - return(rv); -} - -long table_number; -int current = 0; -char **error_codes = (char **)NULL; - -add_ec(name, description) - char const *name, *description; -{ - fprintf(cfile, "\t\"%s\",\n", description); - if (error_codes == (char **)NULL) { - error_codes = (char **)malloc(sizeof(char *)); - *error_codes = (char *)NULL; - } - error_codes = (char **)realloc((char *)error_codes, - (current + 2)*sizeof(char *)); - error_codes[current++] = ds(name); - error_codes[current] = (char *)NULL; -} - -add_ec_val(name, val, description) - char const *name, *val, *description; -{ - const int ncurrent = atoi(val); - if (ncurrent < current) { - printf("Error code %s (%d) out of order", name, - current); - return; - } - - while (ncurrent > current) - fputs("\t(char *)NULL,\n", cfile), current++; - - fprintf(cfile, "\t\"%s\",\n", description); - if (error_codes == (char **)NULL) { - error_codes = (char **)malloc(sizeof(char *)); - *error_codes = (char *)NULL; - } - error_codes = (char **)realloc((char *)error_codes, - (current + 2)*sizeof(char *)); - error_codes[current++] = ds(name); - error_codes[current] = (char *)NULL; -} - -put_ecs() -{ - int i; - for (i = 0; i < current; i++) { - if (error_codes[i] != (char *)NULL) - fprintf(hfile, "#define %-40s (%ldL)\n", - error_codes[i], table_number + i); - } -} - -/* - * char_to_num -- maps letters and numbers into a small numbering space - * uppercase -> 1-26 - * lowercase -> 27-52 - * digits -> 53-62 - * underscore-> 63 - */ - -static const char char_set[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"; - -int char_to_num(c) - char c; -{ - const char *where; - int diff; - - where = strchr (char_set, c); - if (where) { - diff = where - char_set + 1; - assert (diff < (1 << ERRCODE_RANGE)); - return diff; - } - else if (isprint (c)) - fprintf (stderr, - "Illegal character `%c' in error table name\n", - c); - else - fprintf (stderr, - "Illegal character %03o in error table name\n", - c); - exit (1); -} - -set_table_num(string) - char *string; -{ - if (char_to_num (string[0]) > char_to_num ('z')) { - fprintf (stderr, "%s%s%s%s", - "First character of error table name must be ", - "a letter; name ``", - string, "'' rejected\n"); - exit (1); - } - if (strlen(string) > 4) { - fprintf(stderr, "Table name %s too long, truncated ", - string); - string[4] = '\0'; - fprintf(stderr, "to %s\n", string); - } - while (*string != '\0') { - table_number = (table_number << BITS_PER_CHAR) - + char_to_num(*string); - string++; - } - table_number = table_number << ERRCODE_RANGE; -} - -#include "et_lex.lex.c" diff --git a/util/et/et_c.awk b/util/et/et_c.awk deleted file mode 100644 index 4f53fc3..0000000 --- a/util/et/et_c.awk +++ /dev/null @@ -1,183 +0,0 @@ -BEGIN { -char_shift=64 -## "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"; -c2n["A"]=1 -c2n["B"]=2 -c2n["C"]=3 -c2n["D"]=4 -c2n["E"]=5 -c2n["F"]=6 -c2n["G"]=7 -c2n["H"]=8 -c2n["I"]=9 -c2n["J"]=10 -c2n["K"]=11 -c2n["L"]=12 -c2n["M"]=13 -c2n["N"]=14 -c2n["O"]=15 -c2n["P"]=16 -c2n["Q"]=17 -c2n["R"]=18 -c2n["S"]=19 -c2n["T"]=20 -c2n["U"]=21 -c2n["V"]=22 -c2n["W"]=23 -c2n["X"]=24 -c2n["Y"]=25 -c2n["Z"]=26 -c2n["a"]=27 -c2n["b"]=28 -c2n["c"]=29 -c2n["d"]=30 -c2n["e"]=31 -c2n["f"]=32 -c2n["g"]=33 -c2n["h"]=34 -c2n["i"]=35 -c2n["j"]=36 -c2n["k"]=37 -c2n["l"]=38 -c2n["m"]=39 -c2n["n"]=40 -c2n["o"]=41 -c2n["p"]=42 -c2n["q"]=43 -c2n["r"]=44 -c2n["s"]=45 -c2n["t"]=46 -c2n["u"]=47 -c2n["v"]=48 -c2n["w"]=49 -c2n["x"]=50 -c2n["y"]=51 -c2n["z"]=52 -c2n["0"]=53 -c2n["1"]=54 -c2n["2"]=55 -c2n["3"]=56 -c2n["4"]=57 -c2n["5"]=58 -c2n["6"]=59 -c2n["7"]=60 -c2n["8"]=61 -c2n["9"]=62 -c2n["_"]=63 -} -/^#/ { next } -/^[ \t]*(error_table|et)[ \t]+[a-zA-Z][a-zA-Z0-9_]+/ { - table_number = 0 - table_name = $2 - mod_base = 1000000 - for(i=1; i<=length(table_name); i++) { - table_number=(table_number*char_shift)+c2n[substr(table_name,i,1)] - } - - # We start playing *_high, *low games here because the some - # awk programs do not have the necessary precision (sigh) - tab_base_low = table_number % mod_base - tab_base_high = int(table_number / mod_base) - tab_base_sign = 1; - - # figure out: table_number_base=table_number*256 - tab_base_low = tab_base_low * 256 - tab_base_high = (tab_base_high * 256) + \ - int(tab_base_low / mod_base) - tab_base_low = tab_base_low % mod_base - - if (table_number > 128*256*256) { - # figure out: table_number_base -= 256*256*256*256 - # sub_high, sub_low is 256*256*256*256 - sub_low = 256*256*256 % mod_base - sub_high = int(256*256*256 / mod_base) - - sub_low = sub_low * 256 - sub_high = (sub_high * 256) + int(sub_low / mod_base) - sub_low = sub_low % mod_base - - tab_base_low = sub_low - tab_base_low; - tab_base_high = sub_high - tab_base_high; - tab_base_sign = -1; - if (tab_base_low < 0) { - tab_base_low = tab_base_low + mod_base - tab_base_high-- - } - } - print "/*" > outfile - print " * " outfile ":" > outfile - print " * This file is automatically generated; please do not edit it." > outfile - print " */" > outfile - - print "#ifdef __STDC__" > outfile - print "#define NOARGS void" > outfile - print "#else" > outfile - print "#define NOARGS" > outfile - print "#define const" > outfile - print "#endif" > outfile - print "" > outfile - print "static const char * const text[] = {" > outfile - table_item_count = 0 -} - -/^[ \t]*(error_code|ec)[ \t]+[A-Z_0-9]+,[ \t]*$/ { - skipone=1 - next -} - -/^[ \t]*(error_code|ec)[ \t]+[A-Z_0-9]+,[ \t]*".*"[ \t]*$/ { - text="" - for (i=3; i<=NF; i++) { - text = text FS $i - } - text=substr(text,2,length(text)-1); - printf "\t%s,\n", text > outfile - table_item_count++ -} - -{ - if (skipone) { - printf "\t%s,\n", $0 > outfile - table_item_count++ - } - skipone=0 -} -END { - - - print " 0" > outfile - print "};" > outfile - print "" > outfile - print "struct error_table {" > outfile - print " char const * const * msgs;" > outfile - print " long base;" > outfile - print " int n_msgs;" > outfile - print "};" > outfile - print "struct et_list {" > outfile - print " struct et_list *next;" > outfile - print " const struct error_table * table;" > outfile - print "};" > outfile - print "extern struct et_list *_et_list;" > outfile - print "" > outfile - if (tab_base_high == 0) { - print "static const struct error_table et = { text, " \ - sprintf("%dL, %d };", tab_base_sign*tab_base_low, \ - table_item_count) > outfile - } else { - print "static const struct error_table et = { text, " \ - sprintf("%d%06dL, %d };", tab_base_sign*tab_base_high, \ - tab_base_low, table_item_count) > outfile - } - print "" > outfile - print "static struct et_list link = { 0, 0 };" > outfile - print "" > outfile - print "void initialize_" table_name "_error_table (NOARGS) {" > outfile - print " if (!link.table) {" > outfile - print " link.next = _et_list;" > outfile - print " link.table = &et;" > outfile - print " _et_list = &link;" > outfile - print " }" > outfile - print "}" > outfile - - -} diff --git a/util/et/et_h.awk b/util/et/et_h.awk deleted file mode 100644 index 5851dd8..0000000 --- a/util/et/et_h.awk +++ /dev/null @@ -1,150 +0,0 @@ -BEGIN { -char_shift=64 -## "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"; -c2n["A"]=1 -c2n["B"]=2 -c2n["C"]=3 -c2n["D"]=4 -c2n["E"]=5 -c2n["F"]=6 -c2n["G"]=7 -c2n["H"]=8 -c2n["I"]=9 -c2n["J"]=10 -c2n["K"]=11 -c2n["L"]=12 -c2n["M"]=13 -c2n["N"]=14 -c2n["O"]=15 -c2n["P"]=16 -c2n["Q"]=17 -c2n["R"]=18 -c2n["S"]=19 -c2n["T"]=20 -c2n["U"]=21 -c2n["V"]=22 -c2n["W"]=23 -c2n["X"]=24 -c2n["Y"]=25 -c2n["Z"]=26 -c2n["a"]=27 -c2n["b"]=28 -c2n["c"]=29 -c2n["d"]=30 -c2n["e"]=31 -c2n["f"]=32 -c2n["g"]=33 -c2n["h"]=34 -c2n["i"]=35 -c2n["j"]=36 -c2n["k"]=37 -c2n["l"]=38 -c2n["m"]=39 -c2n["n"]=40 -c2n["o"]=41 -c2n["p"]=42 -c2n["q"]=43 -c2n["r"]=44 -c2n["s"]=45 -c2n["t"]=46 -c2n["u"]=47 -c2n["v"]=48 -c2n["w"]=49 -c2n["x"]=50 -c2n["y"]=51 -c2n["z"]=52 -c2n["0"]=53 -c2n["1"]=54 -c2n["2"]=55 -c2n["3"]=56 -c2n["4"]=57 -c2n["5"]=58 -c2n["6"]=59 -c2n["7"]=60 -c2n["8"]=61 -c2n["9"]=62 -c2n["_"]=63 -} -/^#/ { next } -/^[ \t]*(error_table|et)[ \t]+[a-zA-Z][a-zA-Z0-9_]+/ { - table_number = 0 - table_name = $2 - mod_base = 1000000 - for(i=1; i<=length(table_name); i++) { - table_number=(table_number*char_shift)+c2n[substr(table_name,i,1)] - } - # We start playing *_high, *low games here because the some - # awk programs do not have the necessary precision (sigh) - tab_base_low = table_number % mod_base - tab_base_high = int(table_number / mod_base) - tab_base_sign = 1; - - # figure out: table_number_base=table_number*256 - tab_base_low = tab_base_low * 256 - tab_base_high = (tab_base_high * 256) + \ - int(tab_base_low / mod_base) - tab_base_low = tab_base_low % mod_base - - if (table_number > 128*256*256) { - # figure out: table_number_base -= 256*256*256*256 - # sub_high, sub_low is 256*256*256*256 - sub_low = 256*256*256 % mod_base - sub_high = int(256*256*256 / mod_base) - - sub_low = sub_low * 256 - sub_high = (sub_high * 256) + int(sub_low / mod_base) - sub_low = sub_low % mod_base - - tab_base_low = sub_low - tab_base_low; - tab_base_high = sub_high - tab_base_high; - tab_base_sign = -1; - if (tab_base_low < 0) { - tab_base_low = tab_base_low + mod_base - tab_base_high-- - } - } - curr_low = tab_base_low - curr_high = tab_base_high - curr_sign = tab_base_sign - print "/*" > outfile - print " * " outfile ":" > outfile - print " * This file is automatically generated; please do not edit it." > outfile - print " */" > outfile -} - -/^[ \t]*(error_code|ec)[ \t]+[A-Z_0-9]+,/ { - tag=substr($2,1,length($2)-1) - if (curr_high == 0) { - printf "#define %-40s (%dL)\n", tag, \ - curr_sign*curr_low > outfile - } else { - printf "#define %-40s (%d%06dL)\n", tag, curr_high*curr_sign, \ - curr_low > outfile - } - curr_low += curr_sign; - if (curr_low >= mod_base) { - curr_low -= mod_base; - curr_high++ - } - if (curr_low < 0) { - cur_low += mod_base - cur_high-- - } -} - -END { - print "extern void initialize_" table_name "_error_table ();" > outfile - if (tab_base_high == 0) { - print "#define ERROR_TABLE_BASE_" table_name " (" \ - sprintf("%d", tab_base_sign*tab_base_low) \ - "L)" > outfile - } else { - print "#define ERROR_TABLE_BASE_" table_name " (" \ - sprintf("%d%06d", tab_base_sign*tab_base_high, \ - tab_base_low) "L)" > outfile - } - print "" > outfile - print "/* for compatibility with older versions... */" > outfile - print "#define init_" table_name "_err_tbl initialize_" table_name "_error_table" > outfile - print "#define " table_name "_err_base ERROR_TABLE_BASE_" table_name > outfile -} diff --git a/util/et/et_lex.lex.l b/util/et/et_lex.lex.l deleted file mode 100644 index b363e8c..0000000 --- a/util/et/et_lex.lex.l +++ /dev/null @@ -1,23 +0,0 @@ -PC [^\"] -AN [A-Z_a-z0-9] -%% - -error_table return ERROR_TABLE; -et return ERROR_TABLE; -error_code return ERROR_CODE_ENTRY; -ec return ERROR_CODE_ENTRY; -end return END; - -[\t\n ] ; - -\"{PC}*\" { register char *p; yylval.dynstr = ds(yytext+1); - if (p=strrchr(yylval.dynstr, '"')) *p='\0'; - return QUOTED_STRING; - } - -{AN}* { yylval.dynstr = ds(yytext); return STRING; } - -#.*\n ; - -. { return (*yytext); } -%% diff --git a/util/et/et_name.c b/util/et/et_name.c deleted file mode 100644 index 044302b..0000000 --- a/util/et/et_name.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright 1987 by MIT Student Information Processing Board - * - * For copyright info, see mit-sipb-copyright.h. - */ - -#include "error_table.h" -#include "mit-sipb-copyright.h" -#include "internal.h" - -#ifndef lint -static const char copyright[] = - "Copyright 1987,1988 by Student Information Processing Board, Massachusetts Institute of Technology"; -#endif - -static const char char_set[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"; - -static char buf[6]; - -const char * error_table_name(num) - int num; -{ - int ch; - int i; - char *p; - - /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */ - p = buf; - num >>= ERRCODE_RANGE; - /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */ - num &= 077777777; - /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */ - for (i = 4; i >= 0; i--) { - ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1); - if (ch != 0) - *p++ = char_set[ch-1]; - } - *p = '\0'; - return(buf); -} diff --git a/util/et/init_et.c b/util/et/init_et.c deleted file mode 100644 index f52faca..0000000 --- a/util/et/init_et.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - * util/et/init_et.c - * - * Copyright 1986, 1987, 1988 by MIT Information Systems and - * the MIT Student Information Processing Board. - * - * For copyright info, see mit-sipb-copyright.h. - */ - -#include <stdio.h> -#include "error_table.h" -#include "mit-sipb-copyright.h" - -extern char *malloc(), *realloc(); - -struct foobar { - struct et_list etl; - struct error_table et; -}; - -extern struct et_list * _et_list; - -int init_error_table(msgs, base, count) - const char * const * msgs; - int base; - int count; -{ - struct foobar * new_et; - - if (!base || !count || !msgs) - return 0; - - new_et = (struct foobar *) malloc(sizeof(struct foobar)); - if (!new_et) - return errno; /* oops */ - new_et->etl.table = &new_et->et; - new_et->et.msgs = msgs; - new_et->et.base = base; - new_et->et.n_msgs= count; - - new_et->etl.next = _et_list; - _et_list = &new_et->etl; - return 0; -} diff --git a/util/et/internal.h b/util/et/internal.h deleted file mode 100644 index a101f26..0000000 --- a/util/et/internal.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * internal include file for com_err package - */ -#include "mit-sipb-copyright.h" - -#include <errno.h> - -#ifdef NEED_SYS_ERRLIST -extern char const * const sys_errlist[]; -extern const int sys_nerr; -#endif - -#if defined(__STDC__) && !defined(HDR_HAS_PERROR) -void perror (const char *); -#endif diff --git a/util/et/mit-sipb-copyright.h b/util/et/mit-sipb-copyright.h deleted file mode 100644 index 2f7eb29..0000000 --- a/util/et/mit-sipb-copyright.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - -Copyright 1987, 1988 by the Student Information Processing Board - of the Massachusetts Institute of Technology - -Permission to use, copy, modify, and distribute this software -and its documentation for any purpose and without fee is -hereby granted, provided that the above copyright notice -appear in all copies and that both that copyright notice and -this permission notice appear in supporting documentation, -and that the names of M.I.T. and the M.I.T. S.I.P.B. not be -used in advertising or publicity pertaining to distribution -of the software without specific, written prior permission. -M.I.T. and the M.I.T. S.I.P.B. make no representations about -the suitability of this software for any purpose. It is -provided "as is" without express or implied warranty. - -*/ - diff --git a/util/et/test1.et b/util/et/test1.et deleted file mode 100644 index 4c7b77f..0000000 --- a/util/et/test1.et +++ /dev/null @@ -1,69 +0,0 @@ - error_table krb - - error_code KRB_MK_AP_TKFIL, - "Can't read ticket file" - - ec KRB_MK_AP_NOTKT, - "Can't find ticket or TGT" - - ec KRB_MK_AP_TGTEXP, - "TGT expired" - - ec KRB_RD_AP_UNDEC, - "Can't decode authenticator" - - ec KRB_RD_AP_EXP, - "Ticket expired" - - ec KRB_RD_AP_REPEAT, - "Repeated request" - - ec KRB_RD_AP_NOT_US, - "The ticket isn't for us" - - ec KRB_RD_AP_INCON, - "Request is inconsistent" - - ec KRB_RD_AP_TIME, - "Delta-T too big" - - ec KRB_RD_AP_BADD, - "Incorrect net address" - - ec KRB_RD_AP_VERSION, - "Protocol version mismatch" - - ec KRB_RD_AP_MSG_TYPE, - "Invalid message type" - - ec KRB_RD_AP_MODIFIED, - "Message stream modified" - - ec KRB_RD_AP_ORDER, - "Message out of order" - - ec KRB_RD_AP_UNAUTHOR, - "Unauthorized request" - - ec KRB_GT_PW_NULL, - "Current password is null" - - ec KRB_GT_PW_BADPW, - "Incorrect current password" - - ec KRB_GT_PW_PROT, - "Protocol error" - - ec KRB_GT_PW_KDCERR, - "Error returned by KDC" - - ec KRB_GT_PW_NULLTKT, - "Null ticket returned by KDC" - - ec KRB_SKDC_RETRY, - "Retry count exceeded" - - ec KRB_SKDC_CANT, - "Can't send request" - - end diff --git a/util/et/test2.et b/util/et/test2.et deleted file mode 100644 index 55ad74e..0000000 --- a/util/et/test2.et +++ /dev/null @@ -1,9 +0,0 @@ - error_table quux - - ec FOO_ERR, "foo" - - ec BAR_ERR, "bar" - - ec BAZ_ERR, "meow" - - end diff --git a/util/et/test_et.c b/util/et/test_et.c deleted file mode 100644 index 955cb96..0000000 --- a/util/et/test_et.c +++ /dev/null @@ -1,47 +0,0 @@ -#include <stdio.h> -#include <errno.h> -#include "com_err.h" -#include "test1.h" -#include "test2.h" - -extern int sys_nerr, errno; - -main() -{ - printf("Before initiating error table:\n\n"); - printf("Table name '%s'\n", error_table_name(KRB_MK_AP_TGTEXP)); - printf("UNIX name '%s'\n", error_table_name(EPERM)); - printf("Msg TGT-expired is '%s'\n", error_message(KRB_MK_AP_TGTEXP)); - printf("Msg EPERM is '%s'\n", error_message(EPERM)); - printf("Msg FOO_ERR is '%s'\n", error_message(FOO_ERR)); - printf("Msg {sys_nerr-1} is '%s'\n", error_message(sys_nerr-1)); - printf("Msg {sys_nerr} is '%s'\n", error_message(sys_nerr)); - - printf("With 0: tgt-expired -> %s\n", error_message(KRB_MK_AP_TGTEXP)); - - initialize_krb_error_table(); - printf("KRB error table initialized: base %d (%s), name %s\n", - ERROR_TABLE_BASE_krb, error_message(ERROR_TABLE_BASE_krb), - error_table_name(ERROR_TABLE_BASE_krb)); - initialize_krb_error_table(); - printf("With krb: tgt-expired -> %s\n", - error_message(KRB_MK_AP_TGTEXP)); - - initialize_quux_error_table(); - printf("QUUX error table initialized: base %d (%s), name %s\n", - ERROR_TABLE_BASE_quux, error_message(ERROR_TABLE_BASE_quux), - error_table_name(ERROR_TABLE_BASE_quux)); - - printf("Msg for TGT-expired is '%s'\n", - error_message(KRB_MK_AP_TGTEXP)); - printf("Msg {sys_nerr-1} is '%s'\n", error_message(sys_nerr-1)); - printf("Msg FOO_ERR is '%s'\n", error_message(FOO_ERR)); - printf("Msg KRB_SKDC_CANT is '%s'\n", - error_message(KRB_SKDC_CANT)); - printf("Msg 1e6 (8B 64) is '%s'\n", error_message(1000000)); - printf("\n\nCOM_ERR tests:\n"); - com_err("whoami", FOO_ERR, (char *)NULL); - com_err("whoami", FOO_ERR, " -- message goes %s", "here"); - com_err("whoami", 0, (char *)0); - com_err("whoami", 0, "error number %d\n", 0); -} diff --git a/util/et/texinfo.tex b/util/et/texinfo.tex deleted file mode 100644 index 838160c..0000000 --- a/util/et/texinfo.tex +++ /dev/null @@ -1,2077 +0,0 @@ -%% TeX macros to handle texinfo files - -% Copyright (C) 1985, 1986, 1988 Richard M. Stallman - -% NO WARRANTY - -% BECAUSE THIS PROGRAM IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY -%NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW. EXCEPT -%WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC, -%RICHARD M. STALLMAN AND/OR OTHER PARTIES PROVIDE THIS PROGRAM "AS IS" -%WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, -%BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND -%FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY -%AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE -%DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR -%CORRECTION. - -% IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M. -%STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., AND/OR ANY OTHER PARTY -%WHO MAY MODIFY AND REDISTRIBUTE THIS PROGRAM AS PERMITTED BELOW, BE -%LIABLE TO YOU FOR DAMAGES, INCLUDING ANY LOST PROFITS, LOST MONIES, OR -%OTHER SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE -%USE OR INABILITY TO USE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR -%DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR -%A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) THIS -%PROGRAM, EVEN IF YOU HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH -%DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. - -% GENERAL PUBLIC LICENSE TO COPY - -% 1. You may copy and distribute verbatim copies of this source file -%as you receive it, in any medium, provided that you conspicuously -%and appropriately publish on each copy a valid copyright notice -%"Copyright (C) 1986 Richard M. Stallman"; and include -%following the copyright notice a verbatim copy of the above disclaimer -%of warranty and of this License. - -% 2. You may modify your copy or copies of this source file or -%any portion of it, and copy and distribute such modifications under -%the terms of Paragraph 1 above, provided that you also do the following: - -% a) cause the modified files to carry prominent notices stating -% that you changed the files and the date of any change; and - -% b) cause the whole of any work that you distribute or publish, -% that in whole or in part contains or is a derivative of this -% program or any part thereof, to be licensed at no charge to all -% third parties on terms identical to those contained in this -% License Agreement (except that you may choose to grant more extensive -% warranty protection to some or all third parties, at your option). - -% c) You may charge a distribution fee for the physical act of -% transferring a copy, and you may at your option offer warranty -% protection in exchange for a fee. - -%Mere aggregation of another unrelated program with this program (or its -%derivative) on a volume of a storage or distribution medium does not bring -%the other program under the scope of these terms. - -% 3. You may copy and distribute this program (or a portion or derivative -%of it, under Paragraph 2) in object code or executable form under the terms -%of Paragraphs 1 and 2 above provided that you also do one of the following: - -% a) accompany it with the complete corresponding machine-readable -% source code, which must be distributed under the terms of -% Paragraphs 1 and 2 above; or, - -% b) accompany it with a written offer, valid for at least three -% years, to give any third party free (except for a nominal -% shipping charge) a complete machine-readable copy of the -% corresponding source code, to be distributed under the terms of -% Paragraphs 1 and 2 above; or, - -% c) accompany it with the information you received as to where the -% corresponding source code may be obtained. (This alternative is -% allowed only for noncommercial distribution and only if you -% received the program in object code or executable form alone.) - -%For an executable file, complete source code means all the source code for -%all modules it contains; but, as a special exception, it need not include -%source code for modules which are standard libraries that accompany the -%operating system on which the executable file runs. - -% 4. You may not copy, sublicense, distribute or transfer this program -%except as expressly provided under this License Agreement. Any attempt -%otherwise to copy, sublicense, distribute or transfer this program is void and -%your rights to use the program under this License agreement shall be -%automatically terminated. However, parties who have received computer -%software programs from you with this License Agreement will not have -%their licenses terminated so long as such parties remain in full compliance. - -% 5. If you wish to incorporate parts of this program into other free -%programs whose distribution conditions are different, write to the Free -%Software Foundation at 675 Mass Ave, Cambridge, MA 02139. We have not yet -%worked out a simple rule that can be stated here, but we will often permit -%this. We will be guided by the two goals of preserving the free status of -%all derivatives of our free software and of promoting the sharing and reuse of -%software. - -%In other words, you are welcome to use, share and improve this program. -%You are forbidden to forbid anyone else to use, share and improve -%what you give them. Help stamp out software-hoarding! - -\def\texinfoversion{1.18} -\message{Loading texinfo package [Version \texinfoversion]:} -\message{} - -% Save some parts of plain tex whose names we will redefine. - -\let\ptexlbrace=\{ -\let\ptexrbrace=\} -\let\ptexdot=\. -\let\ptexstar=\* -\let\ptexend=\end -\let\ptexbullet=\bullet -\let\ptexb=\b -\let\ptexc=\c -\let\ptexi=\i -\let\ptext=\t -\let\ptexl=\l -\let\ptexL=\L - -\def\tie{\penalty 10000\ } % Save plain tex definition of ~. - -\message{Basics,} -\chardef\other=12 - -\hyphenation{ap-pen-dix} -\hyphenation{mini-buf-fer mini-buf-fers} -\hyphenation{eshell} - -% Margin to add to right of even pages, to left of odd pages. -\newdimen \bindingoffset \bindingoffset=0pt -\newdimen \normaloffset \normaloffset=\hoffset -\newdimen\pagewidth \newdimen\pageheight -\pagewidth=\hsize \pageheight=\vsize - -%---------------------Begin change----------------------- -% -% Dimensions to add cropmarks at corners Added by P. A. MacKay, 12 Nov. 1986 -% -\newdimen\cornerlong \newdimen\cornerthick -\newdimen \topandbottommargin -\newdimen \outerhsize \newdimen \outervsize -\cornerlong=1pc\cornerthick=.3pt % These set size of cropmarks -\outerhsize=7in -\outervsize=9.5in -\topandbottommargin=.75in -% -%---------------------End change----------------------- - -% \onepageout takes a vbox as an argument. Note that \pagecontents -% does insertions itself, but you have to call it yourself. -\chardef\PAGE=255 \output={\onepageout{\pagecontents\PAGE}} -\def\onepageout#1{\hoffset=\normaloffset -\ifodd\pageno \advance\hoffset by \bindingoffset -\else \advance\hoffset by -\bindingoffset\fi -\shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}% - {\let\hsize=\pagewidth \makefootline}} -\advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi} - - -% Here is a modification of the main output routine for Near East Publications -% This provides right-angle cropmarks at all four corners. -% The contents of the page are centerlined into the cropmarks, -% and any desired binding offset is added as an \hskip on either -% site of the centerlined box. (P. A. MacKay, 12 November, 1986) -% -\def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up - \shipout - \vbox to \outervsize{\hsize=\outerhsize - \vbox{\line{\ewtop\hfill\ewtop}} - \nointerlineskip - \line{\vbox{\moveleft\cornerthick\nstop} - \hfill - \vbox{\moveright\cornerthick\nstop}} - \vskip \topandbottommargin - \centerline{\ifodd\pageno\hskip\bindingoffset\fi - \vbox{ - {\let\hsize=\pagewidth \makeheadline} - \pagebody{#1} - {\let\hsize=\pagewidth \makefootline}} - \ifodd\pageno\else\hskip\bindingoffset\fi} - \vskip \topandbottommargin plus1fill minus1fill - \boxmaxdepth\cornerthick - \line{\vbox{\moveleft\cornerthick\nsbot} - \hfill - \vbox{\moveright\cornerthick\nsbot}} - \nointerlineskip - \vbox{\line{\ewbot\hfill\ewbot}} - } - \advancepageno - \ifnum\outputpenalty>-20000 \else\dosupereject\fi} -% -% Do @cropmarks to get crop marks -\def\cropmarks{\let\onepageout=\croppageout } - -\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}} -{\catcode`\@ =11 -\gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi -\dimen@=\dp#1 \unvbox#1 -\ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi -\ifr@ggedbottom \kern-\dimen@ \vfil \fi} -} - -% -% Here are the rules for the cropmarks. Note that they are -% offset so that the space between them is truly \outerhsize or \outervsize -% (P. A. MacKay, 12 November, 1986) -% -\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong} -\def\nstop{\vbox - {\hrule height\cornerthick depth\cornerlong width\cornerthick}} -\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong} -\def\nsbot{\vbox - {\hrule height\cornerlong depth\cornerthick width\cornerthick}} - -% Parse an argument, then pass it to #1. -% The argument can be delimited with [...] or with "..." or braces -% or it can be a whole line. -% #1 should be a macro which expects -% an ordinary undelimited TeX argument. - -\def\parsearg #1{\let\next=#1\begingroup\obeylines\futurelet\temp\parseargx} - -\def\parseargx{% -\ifx \obeyedspace\temp \aftergroup\parseargdiscardspace \else% -\aftergroup \parseargline % -\fi \endgroup} - -{\obeyspaces % -\gdef\parseargdiscardspace {\begingroup\obeylines\futurelet\temp\parseargx}} - -\gdef\obeyedspace{\ } - -\def\parseargline{\begingroup \obeylines \parsearglinex} -{\obeylines % -\gdef\parsearglinex #1^^M{\endgroup \next {#1}}} - -\def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next} - -%% These are used to keep @begin/@end levels from running away -%% Call \inENV within environments (after a \begingroup) -\newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi} -\def\ENVcheck{% -\ifENV\errmessage{Still within an environment. Type Return to continue.} -\endgroup\fi} % This is not perfect, but it should reduce lossage - -% @begin foo is the same as @foo, for now. -\newhelp\EMsimple{Type <Return> to continue} - -\outer\def\begin{\parsearg\beginxxx} - -\def\beginxxx #1{% -\expandafter\ifx\csname #1\endcsname\relax -{\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else -\csname #1\endcsname\fi} - -%% @end foo executes the definition of \Efoo. -%% foo can be delimited by doublequotes or brackets. - -\def\end{\parsearg\endxxx} - -\def\endxxx #1{% -\expandafter\ifx\csname E#1\endcsname\relax -\expandafter\ifx\csname #1\endcsname\relax -\errmessage{Undefined command @end #1}\else -\errorE{#1}\fi\fi -\csname E#1\endcsname} -\def\errorE#1{ -{\errhelp=\EMsimple \errmessage{@end #1 not within #1 environment}}} - -% Single-spacing is done by various environments. - -\newskip\singlespaceskip \singlespaceskip = \baselineskip -\def\singlespace{% -{\advance \baselineskip by -\singlespaceskip -\kern \baselineskip}% -\baselineskip=\singlespaceskip -} - -%% Simple single-character @ commands - -% @@ prints an @ -% Kludge this until the fonts are right (grr). -\def\@{{\sf \char '100}} - -% Define @` and @' to be the same as ` and ' -% but suppressing ligatures. -\def\`{{`}} -\def\'{{'}} - -% Used to generate quoted braces. - -\def\mylbrace {{\tt \char '173}} -\def\myrbrace {{\tt \char '175}} -\let\{=\mylbrace -\let\}=\myrbrace - -% @: forces normal size whitespace following. -\def\:{\spacefactor=1000 } - -% @* forces a line break. -\def\*{\hfil\break} - -% @. is an end-of-sentence period. -\def\.{.\spacefactor=3000 } - -% @w prevents a word break -\def\w #1{\hbox{#1}} - -% @group ... @end group forces ... to be all on one page. - -\def\group{\begingroup% \inENV ??? -\def \Egroup{\egroup\endgroup} -\vbox\bgroup} - -% @br forces paragraph break - -\let\br = \par - -% @dots{} output some dots - -\def\dots{$\ldots$} - -% @page forces the start of a new page - -\def\page{\par\vfill\supereject} - -% @exdent text.... -% outputs text on separate line in roman font, starting at standard page margin - -\def\exdent{\errmessage{@exdent in filled text}} - % @lisp, etc, define \exdent locally from \internalexdent - -{\obeyspaces -\gdef\internalexdent{\parsearg\exdentzzz}} - -\def\exdentzzz #1{{\advance \leftskip by -\lispnarrowing -\advance \hsize by -\leftskip -\advance \hsize by -\rightskip -\leftline{{\rm#1}}}} - -% @include file insert text of that file as input. - -\def\include{\parsearg\includezzz} -\def\includezzz #1{{\def\thisfile{#1}\input #1 -}} - -\def\thisfile{} - -% @center line outputs that line, centered - -\def\center{\parsearg\centerzzz} -\def\centerzzz #1{{\advance\hsize by -\leftskip -\advance\hsize by -\rightskip -\centerline{#1}}} - -% @sp n outputs n lines of vertical space - -\def\sp{\parsearg\spxxx} -\def\spxxx #1{\par \vskip #1\baselineskip} - -% @comment ...line which is ignored... -% @c is the same as @comment -% @ignore ... @end ignore is another way to write a comment - -\def\comment{\parsearg \commentxxx} - -\def\commentxxx #1{} - -\let\c=\comment - -\long\def\ignore #1\end ignore{} - -\outer\def\ifset{\parsearg\ifsetxxx} - -\def\ifsetxxx #1#2\end ifset{% -\expandafter\ifx\csname IF#1\endcsname\relax \else #2\fi} - -\outer\def\ifclear{\parsearg\ifclearxxx} - -\def\ifclearxxx #1#2\end ifclear{% -\expandafter\ifx\csname IF#1\endcsname\relax #2\fi} - -% Some texinfo constructs that are trivial in tex - -\def\iftex{} -\def\Eiftex{} -\long\def\ifinfo #1\end ifinfo{} -\long\def\menu #1\end menu{} -\def\asis#1{#1} - -\def\node{\parsearg\nodezzz} -\def\nodezzz#1{\nodexxx [#1,]} -\def\nodexxx[#1,#2]{\gdef\lastnode{#1}} -\let\lastnode=\relax - -\def\donoderef{\ifx\lastnode\relax\else -\expandafter\expandafter\expandafter\setref{\lastnode}\fi -\let\lastnode=\relax} - -\def\unnumbnoderef{\ifx\lastnode\relax\else -\expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi -\let\lastnode=\relax} - -\let\refill=\relax - -\let\setfilename=\comment - -\def\inforef #1{\inforefzzz #1,,,,**} -\def\inforefzzz #1,#2,#3,#4**{See Info file \file{\losespace#3{}}, node `\losespace#1{}'} -\def\losespace #1{#1} - -\message{fonts,} - -% Font-change commands. - -%% Try out Computer Modern fonts at \magstephalf -\font\tenrm=cmr10 scaled \magstephalf -\font\tentt=cmtt10 scaled \magstephalf -% Instead of cmb10, you many want to use cmbx10. -% cmbx10 is a prettier font on its own, but cmb10 -% looks better when embedded in a line with cmr10. -\font\tenbf=cmb10 scaled \magstephalf -\font\tenit=cmti10 scaled \magstephalf -\font\tensl=cmsl10 scaled \magstephalf -\font\tensf=cmss10 scaled \magstephalf -\def\li{\sf} -\font\tensc=cmcsc10 scaled \magstephalf - -% Fonts for @defun, etc. -\font\defbf=cmbx10 scaled \magstep1 %was 1314 -\let\deftt=\tentt -\def\df{\let\tt=\deftt \defbf} - -% Font for title -\font\titlerm = cmbx10 scaled \magstep5 - -% Fonts for indices -\font\indit=cmti9 \font\indrm=cmr9 -\def\indbf{\indrm} \def\indsl{\indit} -\def\indexfonts{\let\it=\indit \let\sl=\indsl \let\bf=\indbf \let\rm=\indrm} - -% Fonts for headings -\font\chaprm=cmbx10 scaled \magstep3 -\font\chapit=cmti10 scaled \magstep3 -\font\chapsl=cmsl10 scaled \magstep3 -\font\chaptt=cmtt10 scaled \magstep3 -\font\chapsf=cmss10 scaled \magstep3 -\let\chapbf=\chaprm - -\font\secrm=cmbx10 scaled \magstep2 -\font\secit=cmti10 scaled \magstep2 -\font\secsl=cmsl10 scaled \magstep2 -\font\sectt=cmtt10 scaled \magstep2 -\font\secsf=cmss10 scaled \magstep2 -\let\secbf=\secrm - -\font\ssecrm=cmbx10 scaled \magstep1 -\font\ssecit=cmti10 scaled \magstep1 -\font\ssecsl=cmsl10 scaled \magstep1 -\font\ssectt=cmtt10 scaled \magstep1 -\font\ssecsf=cmss10 scaled \magstep1 -\let\ssecbf=\ssecrm - -\def\textfonts{\let\rm=\tenrm\let\it=\tenit\let\sl=\tensl\let\bf=\tenbf% -\let\sc=\tensc\let\sf=\tensf} -\def\chapfonts{\let\rm=\chaprm\let\it=\chapit\let\sl=\chapsl\let\bf=\chapbf\let\tt=\chaptt\let\sf=\chapsf} -\def\secfonts{\let\rm=\secrm\let\it=\secit\let\sl=\secsl\let\bf=\secbf\let\tt=\sectt\let\sf=\secsf} -\def\subsecfonts{\let\rm=\ssecrm\let\it=\ssecit\let\sl=\ssecsl\let\bf=\ssecbf\let\tt=\ssectt\let\sf=\ssecsf} -% Count depth in font-changes, for error checks -\newcount\fontdepth \fontdepth=0 - -%% Add scribe-like font environments, plus @l for inline lisp (usually sans -%% serif) and @ii for TeX italic - -\def\i#1{{\sl #1}} -\let\var=\i -\let\dfn=\i -\let\emph=\i -\let\cite=\i - -\def\b#1{{\bf #1}} -\let\strong=\b - -\def\t#1{{\tt \rawbackslash \frenchspacing #1}\null} -\let\ttfont = \t -\let\kbd=\t -\let\code=\t -\def\samp #1{`{\tt \rawbackslash \frenchspacing #1}'\null} -\def\key #1{{\tt \uppercase{#1}}\null} -\def\ctrl #1{{\tt \rawbackslash \hat}#1} - -\let\file=\samp - -\def\l#1{{\li #1}\null} - -\def\r#1{{\rm #1}} -\def\s#1{{\sc #1}} -\def\ii#1{{\it #1}} - -\def\titlefont#1{{\titlerm #1}} - -\def\titlepage{\begingroup \parindent=0pt \hbox{}% -\let\oldpage=\page -\def\page{\oldpage \hbox{}}} - -\def\Etitlepage{\endgroup\page\HEADINGSon} - -% Make altmode in file print out right - -\catcode `\^^[=\active \def^^[{$\diamondsuit$} - -\message{page headings,} - -%%% Set up page headings and footings. - -\let\thispage=\folio - -\newtoks \evenheadline % Token sequence for heading line of even pages -\newtoks \oddheadline % Token sequence for heading line of odd pages -\newtoks \evenfootline % Token sequence for footing line of even pages -\newtoks \oddfootline % Token sequence for footing line of odd pages - -% Now make Tex use those variables -\headline={{\textfonts\rm \ifodd\pageno \the\oddheadline \else \the\evenheadline \fi}} -\footline={{\textfonts\rm \ifodd\pageno \the\oddfootline \else \the\evenfootline \fi}} - -% Commands to set those variables. -% For example, this is what @headings on does -% @evenheading @thistitle|@thispage|@thischapter -% @oddheading @thischapter|@thispage|@thistitle -% @evenfooting @thisfile|| -% @oddfooting ||@thisfile - -\def\evenheading{\parsearg\evenheadingxxx} -\def\oddheading{\parsearg\oddheadingxxx} -\def\everyheading{\parsearg\everyheadingxxx} - -\def\evenfooting{\parsearg\evenfootingxxx} -\def\oddfooting{\parsearg\oddfootingxxx} -\def\everyfooting{\parsearg\everyfootingxxx} - -{\catcode`\@=0 % - -\gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish} -\gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{% -\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish} -\gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{% -\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\everyheadingxxx #1{\everyheadingyyy #1@|@|@|@|\finish} -\gdef\everyheadingyyy #1@|#2@|#3@|#4\finish{% -\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}} -\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish} -\gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{% -\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish} -\gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{% -\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} - -\gdef\everyfootingxxx #1{\everyfootingyyy #1@|@|@|@|\finish} -\gdef\everyfootingyyy #1@|#2@|#3@|#4\finish{% -\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}} -\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} -% -}% unbind the catcode of @. - -% @headings on turns them on. -% @headings off turns them off. -% By default, they are off. - -\def\headings #1 {\csname HEADINGS#1\endcsname} - -\def\HEADINGSoff{ -\global\evenheadline={\hfil} \global\evenfootline={\hfil} -\global\oddheadline={\hfil} \global\oddfootline={\hfil}} -\HEADINGSoff -% When we turn headings on, set the page number to 1, -% Put current file name in lower left corner, -% Put chapter name on inside top of right hand pages, document -% title on inside top of left hand pages, and page numbers on outside top -% edge of all pages. -\def\HEADINGSon{ -\pagealignmacro -\global\pageno=1 -\global\evenfootline={\hfil} -\global\oddfootline={\hfil} -\global\evenheadline={\line{\folio\hfil\thistitle}} -\global\oddheadline={\line{\thischapter\hfil\folio}} -} - -% Subroutines used in generating headings -% Produces Day Month Year style of output. -\def\today{\number\day\space -\ifcase\month\or -January\or February\or March\or April\or May\or June\or -July\or August\or September\or October\or November\or December\fi -\space\number\year} - -% Use this if you want the Month Day, Year style of output. -%\def\today{\ifcase\month\or -%January\or February\or March\or April\or May\or June\or -%July\or August\or September\or October\or November\or December\fi -%\space\number\day, \number\year} - -% @settitle line... specifies the title of the document, for headings -% It generates no output of its own - -\def\thistitle{No Title} -\def\settitle{\parsearg\settitlezzz} -\def\settitlezzz #1{\gdef\thistitle{#1}} - -\message{tables,} - -% Tables -- @table, @ftable, @item(x), @kitem(x), @xitem(x). - -% default indentation of table text -\newdimen\tableindent \tableindent=.8in -% default indentation of @itemize and @enumerate text -\newdimen\itemindent \itemindent=.3in -% margin between end of table item and start of table text. -\newdimen\itemmargin \itemmargin=.1in - -% used internally for \itemindent minus \itemmargin -\newdimen\itemmax - -% Note @table and @ftable define @item, @itemx, etc., with these defs. -% They also define \itemindex -% to index the item name in whatever manner is desired (perhaps none). - -\def\internalBitem{\smallbreak \parsearg\itemzzz} -\def\internalBitemx{\par \parsearg\itemzzz} - -\def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz} -\def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \par \parsearg\xitemzzz} - -\def\internalBkitem{\smallbreak \parsearg\kitemzzz} -\def\internalBkitemx{\par \parsearg\kitemzzz} - -\def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}\itemzzz {#1}} - -\def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}\itemzzz {#1}} - -\def\itemzzz #1{\begingroup % -\advance \hsize by -\rightskip % -\advance \hsize by -\leftskip % -\setbox0=\hbox{\itemfont{#1}}% -\itemindex{#1}% -\parskip=0in % -\noindent % -\ifdim \wd0>\itemmax % -\vadjust{\penalty 10000}% -\hbox to \hsize{\hskip -\tableindent\box0\hss}\ % -\else % -\hbox to 0pt{\hskip -\tableindent\box0\hss}% -\fi % -\endgroup % -} - -\def\item{\errmessage{@item while not in a table}} -\def\itemx{\errmessage{@itemx while not in a table}} -\def\kitem{\errmessage{@kitem while not in a table}} -\def\kitemx{\errmessage{@kitemx while not in a table}} -\def\xitem{\errmessage{@xitem while not in a table}} -\def\xitemx{\errmessage{@xitemx while not in a table}} - -%% Contains a kludge to get @end[description] to work -\def\description{\tablez{\dontindex}{1}{}{}{}{}} - -\def\table{\begingroup\inENV\obeylines\obeyspaces\tablex} -{\obeylines\obeyspaces% -\gdef\tablex #1^^M{% -\tabley\dontindex#1 \endtabley}} - -\def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex} -{\obeylines\obeyspaces% -\gdef\ftablex #1^^M{% -\tabley\fnitemindex#1 \endtabley}} - -\def\dontindex #1{} -\def\fnitemindex #1{\doind {fn}{\code{#1}}}% - -{\obeyspaces % -\gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup% -\tablez{#1}{#2}{#3}{#4}{#5}{#6}}} - -\def\tablez #1#2#3#4#5#6{% -\aboveenvbreak % -\begingroup % -\def\Edescription{\Etable}% Neccessary kludge. -\let\itemindex=#1% -\ifnum 0#3>0 \advance \leftskip by #3\mil \fi % -\ifnum 0#4>0 \tableindent=#4\mil \fi % -\ifnum 0#5>0 \advance \rightskip by #5\mil \fi % -\def\itemfont{#2}% -\itemmax=\tableindent % -\advance \itemmax by -\itemmargin % -\advance \leftskip by \tableindent % -\parindent = 0pt -\parskip = \smallskipamount -\ifdim \parskip=0pt \parskip=2pt \fi% -\def\Etable{\endgraf\endgroup\afterenvbreak}% -\let\item = \internalBitem % -\let\itemx = \internalBitemx % -\let\kitem = \internalBkitem % -\let\kitemx = \internalBkitemx % -\let\xitem = \internalBxitem % -\let\xitemx = \internalBxitemx % -} - -% This is the counter used by @enumerate, which is really @itemize - -\newcount \itemno - -\def\itemize{\parsearg\itemizezzz} - -\def\itemizezzz #1{\itemizey {#1}{\Eitemize}} - -\def\itemizey #1#2{% -\aboveenvbreak % -\begingroup % -\itemno = 0 % -\itemmax=\itemindent % -\advance \itemmax by -\itemmargin % -\advance \leftskip by \itemindent % -\parindent = 0pt -\parskip = \smallskipamount -\ifdim \parskip=0pt \parskip=2pt \fi% -\def#2{\endgraf\endgroup\afterenvbreak}% -\def\itemcontents{#1}% -\let\item=\itemizeitem} - -\def\bullet{$\ptexbullet$} -\def\minus{$-$} - -\def\enumerate{\itemizey{\the\itemno.}\Eenumerate\flushcr} - -% Definition of @item while inside @itemize. - -\def\itemizeitem{% -\advance\itemno by 1 -{\let\par=\endgraf \smallbreak}% -\ifhmode \errmessage{\in hmode at itemizeitem}\fi -{\parskip=0in \hskip 0pt -\hbox to 0pt{\hss \itemcontents\hskip \itemmargin}% -\vadjust{\penalty 300}}% -\flushcr} - -\message{indexing,} -% Index generation facilities - -% Define \newwrite to be identical to plain tex's \newwrite -% except not \outer, so it can be used within \newindex. -{\catcode`\@=11 -\gdef\newwrite{\alloc@7\write\chardef\sixt@@n}} - -% \newindex {foo} defines an index named foo. -% It automatically defines \fooindex such that -% \fooindex ...rest of line... puts an entry in the index foo. -% It also defines \fooindfile to be the number of the output channel for -% the file that accumulates this index. The file's extension is foo. -% The name of an index should be no more than 2 characters long -% for the sake of vms. - -\def\newindex #1{ -\expandafter\newwrite \csname#1indfile\endcsname% Define number for output file -\openout \csname#1indfile\endcsname \jobname.#1 % Open the file -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\doindex {#1}} -} - -% @defindex foo == \newindex{foo} - -\def\defindex{\parsearg\newindex} - -% Define @defcodeindex, like @defindex except put all entries in @code. - -\def\newcodeindex #1{ -\expandafter\newwrite \csname#1indfile\endcsname% Define number for output file -\openout \csname#1indfile\endcsname \jobname.#1 % Open the file -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\docodeindex {#1}} -} - -\def\defcodeindex{\parsearg\newcodeindex} - -% @synindex foo bar makes index foo feed into index bar. -% Do this instead of @defindex foo if you don't want it as a separate index. -\def\synindex #1 #2 {% -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\doindex {#2}}% -} - -% @syncodeindex foo bar similar, but put all entries made for index foo -% inside @code. -\def\syncodeindex #1 #2 {% -\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex -\noexpand\docodeindex {#2}}% -} - -% Define \doindex, the driver for all \fooindex macros. -% Argument #1 is generated by the calling \fooindex macro, -% and it is "foo", the name of the index. - -% \doindex just uses \parsearg; it calls \doind for the actual work. -% This is because \doind is more useful to call from other macros. - -% There is also \dosubind {index}{topic}{subtopic} -% which makes an entry in a two-level index such as the operation index. - -\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer} -\def\singleindexer #1{\doind{\indexname}{#1}} - -% like the previous two, but they put @code around the argument. -\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer} -\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}} - -\def\indexdummies{% -\def\bf{\realbackslash bf }% -\def\rm{\realbackslash rm }% -\def\sl{\realbackslash sl }% -\def\dots{\realbackslash dots }% -\def\copyright{\realbackslash copyright }% -} - -% \indexnofonts no-ops all font-change commands. -% This is used when outputting the strings to sort the index by. -\def\indexdummyfont#1{#1} -\def\indexnofonts{% -\let\code=\indexdummyfont -\let\samp=\indexdummyfont -\let\kbd=\indexdummyfont -\let\key=\indexdummyfont -\let\var=\indexdummyfont -} - -% To define \realbackslash, we must make \ not be an escape. -% We must first make another character (@) an escape -% so we do not become unable to do a definition. - -{\catcode`\@=0 \catcode`\\=\other -@gdef@realbackslash{\}} - -\let\indexbackslash=0 %overridden during \printindex. - -\def\doind #1#2{% -{\indexdummies % Must do this here, since \bf, etc expand at this stage -\count10=\lastpenalty % -\escapechar=`\\% -{\let\folio=0% Expand all macros now EXCEPT \folio -\def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now -% so it will be output as is; and it will print as backslash in the indx. -% -% Now process the index-string once, with all font commands turned off, -% to get the string to sort the index by. -{\indexnofonts -\xdef\temp1{#2}% -}% -% Now produce the complete index entry. We process the index-string again, -% this time with font commands expanded, to get what to print in the index. -\edef\temp{% -\write \csname#1indfile\endcsname{% -\realbackslash entry {\temp1}{\folio}{#2}}}% -\temp }% -\penalty\count10}} - -\def\dosubind #1#2#3{% -{\indexdummies % Must do this here, since \bf, etc expand at this stage -\count10=\lastpenalty % -\escapechar=`\\% -{\let\folio=0% -\def\rawbackslashxx{\indexbackslash}% -% -% Now process the index-string once, with all font commands turned off, -% to get the string to sort the index by. -{\indexnofonts -\xdef\temp1{#2 #3}% -}% -% Now produce the complete index entry. We process the index-string again, -% this time with font commands expanded, to get what to print in the index. -\edef\temp{% -\write \csname#1indfile\endcsname{% -\realbackslash entry {\temp1}{\folio}{#2}{#3}}}% -\temp }% -\penalty\count10}} - -% The index entry written in the file actually looks like -% \entry {sortstring}{page}{topic} -% or -% \entry {sortstring}{page}{topic}{subtopic} -% The texindex program reads in these files and writes files -% containing these kinds of lines: -% \initial {c} -% before the first topic whose initial is c -% \entry {topic}{pagelist} -% for a topic that is used without subtopics -% \primary {topic} -% for the beginning of a topic that is used with subtopics -% \secondary {subtopic}{pagelist} -% for each subtopic. - -% Define the user-accessible indexing commands -% @findex, @vindex, @kindex, @cindex. - -\def\findex {\fnindex} -\def\kindex {\kyindex} -\def\cindex {\cpindex} -\def\vindex {\vrindex} -\def\tindex {\tpindex} -\def\pindex {\pgindex} - -\def\cindexsub {\begingroup\obeylines\cindexsub} -{\obeylines % -\gdef\cindexsub "#1" #2^^M{\endgroup % -\dosubind{cp}{#2}{#1}}} - -% Define the macros used in formatting output of the sorted index material. - -% This is what you call to cause a particular index to get printed. -% Write -% @unnumbered Function Index -% @printindex fn - -\def\printindex{\parsearg\doprintindex} - -\def\doprintindex#1{\tex % -\catcode`\%=\other\catcode`\&=\other\catcode`\#=\other -\catcode`\$=\other\catcode`\_=\other -\catcode`\~=\other -\def\indexbackslash{\rawbackslashxx} -\indexfonts\rm \tolerance=9500 \advance\baselineskip -1pt -\begindoublecolumns -\openin 1 \jobname.#1s -\ifeof 1 \else \closein 1 \input \jobname.#1s -\fi -\enddoublecolumns -\Etex} - -% These macros are used by the sorted index file itself. -% Change them to control the appearance of the index. - -% Same as \bigskipamount except no shrink. -% \balancecolumns gets confused if there is any shrink. -\newskip\initialskipamount \initialskipamount 12pt plus4pt - -\outer\def\initial #1{% -{\let\tentt=\sectt \let\sf=\sectt -\ifdim\lastskip<\initialskipamount -\removelastskip \penalty-200 \vskip \initialskipamount\fi -\line{\secbf#1\hfill}\kern 2pt\penalty3000}} - -\outer\def\entry #1#2{ -{\parfillskip=0in \parskip=0in \parindent=0in -\hangindent=1in \hangafter=1% -\noindent\hbox{#1}\leaders\Dotsbox\hskip 0pt plus 1filll #2\par -}} - -\def\primary #1{\line{#1\hfil}} - -\newskip\secondaryindent \secondaryindent=0.5cm - -\def\secondary #1#2{ -{\parfillskip=0in \parskip=0in -\hangindent =1in \hangafter=1 -\noindent\hskip\secondaryindent\hbox{#1}\leaders\Dotsbox\hskip 0pt plus 1filll#2\par -}} - -%% Define two-column mode, which is used in indexes. -%% Adapted from the TeXBook, page 416 -\catcode `\@=11 - -\newbox\partialpage - -\newdimen\doublecolumnhsize \doublecolumnhsize = 3.11in -\newdimen\doublecolumnvsize \doublecolumnvsize = 19.1in - -\def\begindoublecolumns{\begingroup - \output={\global\setbox\partialpage=\vbox{\unvbox255\kern -\topskip \kern \baselineskip}}\eject - \output={\doublecolumnout} \hsize=\doublecolumnhsize \vsize=\doublecolumnvsize} -\def\enddoublecolumns{\output={\balancecolumns}\eject - \endgroup \pagegoal=\vsize} - -\def\doublecolumnout{\splittopskip=\topskip \splitmaxdepth=\maxdepth - \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage - \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@ - \onepageout\pagesofar \unvbox255 \penalty\outputpenalty} -\def\pagesofar{\unvbox\partialpage % - \hsize=\doublecolumnhsize % have to restore this since output routine -% changes it to set cropmarks (P. A. MacKay, 12 Nov. 1986) - \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}} -\def\balancecolumns{\setbox0=\vbox{\unvbox255} \dimen@=\ht0 - \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip - \divide\dimen@ by2 \splittopskip=\topskip - {\vbadness=10000 \loop \global\setbox3=\copy0 - \global\setbox1=\vsplit3 to\dimen@ - \ifdim\ht3>\dimen@ \global\advance\dimen@ by1pt \repeat} - \setbox0=\vbox to\dimen@{\unvbox1} \setbox2=\vbox to\dimen@{\unvbox3} - \pagesofar} - -\catcode `\@=\other -\message{sectioning,} -% Define chapters, sections, etc. - -\newcount \chapno -\newcount \secno -\newcount \subsecno -\newcount \subsubsecno - -% This counter is funny since it counts through charcodes of letters A, B, ... -\newcount \appendixno \appendixno = `\@ -\def\appendixletter{\char\the\appendixno} - -\newwrite \contentsfile -\openout \contentsfile = \jobname.toc - -% Each @chapter defines this as the name of the chapter. -% page headings and footings can use it. @section does likewise - -\def\thischapter{} \def\thissection{} -\def\seccheck#1{\if \pageno<0 % -\errmessage{@#1 not allowed after generating table of contents}\fi -% -} - -\outer\def\chapter{\parsearg\chapterzzz} -\def\chapterzzz #1{\seccheck{chapter}% -\secno=0 \subsecno=0 \subsubsecno=0 \global\advance \chapno by 1 \message{Chapter \the\chapno}% -\chapmacro {#1}{\the\chapno}% -\gdef\thissection{#1}\gdef\thischapter{#1}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -} - -\outer\def\appendix{\parsearg\appendixzzz} -\def\appendixzzz #1{\seccheck{appendix}% -\secno=0 \subsecno=0 \subsubsecno=0 \global\advance \appendixno by 1 \message{Appendix \appendixletter}% -\chapmacro {#1}{Appendix \appendixletter}% -\gdef\thischapter{#1}\gdef\thissection{#1}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash chapentry {#1}{Appendix \appendixletter}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -} - -\outer\def\unnumbered{\parsearg\unnumberedzzz} -\def\unnumberedzzz #1{\seccheck{unnumbered}% -\secno=0 \subsecno=0 \subsubsecno=0 \message{(#1)} -\unnumbchapmacro {#1}% -\gdef\thischapter{#1}\gdef\thissection{#1}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash unnumbchapentry {#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -} - -\outer\def\section{\parsearg\sectionzzz} -\def\sectionzzz #1{\seccheck{section}% -\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % -\gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash secentry % -{#1}{\the\chapno}{\the\secno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\penalty 10000 % -} - -\outer\def\appendixsection{\parsearg\appendixsectionzzz} -\outer\def\appendixsec{\parsearg\appendixsectionzzz} -\def\appendixsectionzzz #1{\seccheck{appendixsection}% -\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % -\gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash secentry % -{#1}{\appendixletter}{\the\secno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -} - -\outer\def\unnumberedsec{\parsearg\unnumberedseczzz} -\def\unnumberedseczzz #1{\seccheck{unnumberedsec}% -\plainsecheading {#1}\gdef\thissection{#1}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash unnumbsecentry{#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -} - -\outer\def\subsection{\parsearg\subsectionzzz} -\def\subsectionzzz #1{\seccheck{subsection}% -\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % -\subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash subsecentry % -{#1}{\the\chapno}{\the\secno}{\the\subsecno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\penalty 10000 % -} - -\outer\def\appendixsubsec{\parsearg\appendixsubseczzz} -\def\appendixsubseczzz #1{\seccheck{appendixsubsec}% -\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % -\subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash subsecentry % -{#1}{\appendixletter}{\the\secno}{\the\subsecno}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -} - -\outer\def\unnumberedsubsec{\parsearg\unnumberedsubseczzz} -\def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}% -\plainsecheading {#1}\gdef\thissection{#1}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash unnumbsubsecentry{#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -} - -\outer\def\subsubsection{\parsearg\subsubsectionzzz} -\def\subsubsectionzzz #1{\seccheck{subsubsection}% -\gdef\thissection{#1}\global\advance \subsubsecno by 1 % -\subsubsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash subsubsecentry % -{#1}{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}%\ -\escapechar=`\\% -\write \contentsfile \temp % -\donoderef % -\penalty 10000 % -} - -\outer\def\appendixsubsubsec{\parsearg\appendixsubsubseczzz} -\def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}% -\gdef\thissection{#1}\global\advance \subsubsecno by 1 % -\subsubsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash subsubsecentry{#1}% -{\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}%\ -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -} - -\outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz} -\def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}% -\plainsecheading {#1}\gdef\thissection{#1}% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\edef\temp{{\realbackslash unnumbsubsubsecentry{#1}{\noexpand\folio}}}% -\escapechar=`\\% -\write \contentsfile \temp % -\unnumbnoderef % -\penalty 10000 % -} - -% Define @majorheading, @heading and @subheading - -\outer\def\majorheading #1{% -{\advance\chapheadingskip by 10pt \chapbreak }% -{\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 200} - -\outer\def\chapheading #1{\chapbreak % -{\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 200} - -\let\heading=\secheadingi -\let\subheading=\subsecheadingi -\let\subsubheading=\subsubsecheadingi - -% These macros generate a chapter, section, etc. heading only -% (including whitespace, linebreaking, etc. around it), -% given all the information in convenient, parsed form. - -%%% Args are the skip and penalty (usually negative) -\def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi} - -\def\setchapterstyle #1 {\csname CHAPF#1\endcsname} - -%%% Define plain chapter starts, and page on/off switching for it -% Parameter controlling skip before chapter headings (if needed) - -\newskip \chapheadingskip \chapheadingskip = 30pt plus 8pt minus 4pt - -\def\chapbreak{\dobreak \chapheadingskip {-4000}} -\def\chappager{\par\vfill\supereject} -\def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi} - -\def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname} - -\def\CHAPPAGoff{ -\global\let\pchapsepmacro=\chapbreak -\global\let\pagealignmacro=\chappager} - -\def\CHAPPAGon{ -\global\let\pchapsepmacro=\chappager -\global\let\pagealignmacro=\chappager} - -\def\CHAPPAGodd{ -\global\let\pchapsepmacro=\chapoddpage -\global\let\pagealignmacro=\chapoddpage} - -\CHAPPAGon - -\def\CHAPFplain{ -\global\let\chapmacro=\chfplain -\global\let\unnumbchapmacro=\unnchfplain} - -\def\chfplain #1#2{% -\pchapsepmacro % -{\chapfonts \line{\chaprm #2.\enspace #1\hfill}}\bigskip \par\penalty 5000 % -} - -\def\unnchfplain #1{% -\pchapsepmacro % -{\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 10000 % -} -\CHAPFplain % The default - -\def\unnchfopen #1{% -\chapoddpage {\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 10000 % -} - -\def\chfopen #1#2{\chapoddpage {\chapfonts -\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}% -\par\penalty 5000 % -} - -\def\CHAPFopen{ -\global\let\chapmacro=\chfopen -\global\let\unnumbchapmacro=\unnchfopen} - -% Parameter controlling skip before section headings. - -\newskip \subsecheadingskip \subsecheadingskip = 17pt plus 8pt minus 4pt -\def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}} - -\newskip \secheadingskip \secheadingskip = 21pt plus 8pt minus 4pt -\def\secheadingbreak{\dobreak \secheadingskip {-1000}} - -\def\secheading #1#2#3{\secheadingi {#2.#3\enspace #1}} -\def\plainsecheading #1{\secheadingi {#1}} -\def\secheadingi #1{{\advance \secheadingskip by \parskip % -\secheadingbreak}% -{\secfonts \line{\secrm #1\hfill}}% -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 } - -\def\subsecheading #1#2#3#4{{\advance \subsecheadingskip by \parskip % -\subsecheadingbreak}% -{\secfonts \line{\secrm#2.#3.#4\enspace #1\hfill}}% -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 } - -\def\subsubsecfonts{\subsecfonts} % Maybe this should change - -\def\subsubsecheading #1#2#3#4#5{{\advance \subsecheadingskip by \parskip % -\subsecheadingbreak}% -{\secfonts \line{\secrm#2.#3.#4.#5\enspace #1\hfill}}% -\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000} - -\message{toc printing,} - -\def\Dotsbox{\hbox to 1em{\hss.\hss}} % Used by index macros - -\def\finishcontents{% -\ifnum\pageno>0 % -\pagealignmacro % -\immediate\closeout \contentsfile% -\pageno=-1 % Request roman numbered pages -\fi} - -\outer\def\contents{% -\finishcontents % -\unnumbchapmacro{Table of Contents} -\def\thischapter{Table of Contents} -{\catcode`\\=0 -\catcode`\{=1 % Set up to handle contents files properly -\catcode`\}=2 -\catcode`\@=11 -\input \jobname.toc -} -\vfill \eject} - -\outer\def\summarycontents{% -\finishcontents % -\unnumbchapmacro{Summary Table of Contents} -\def\thischapter{Summary Table of Contents} -{\catcode`\\=0 -\catcode`\{=1 % Set up to handle contents files properly -\catcode`\}=2 -\catcode`\@=11 -\def\smallbreak{} -\def\secentry ##1##2##3##4{} -\def\subsecentry ##1##2##3##4##5{} -\def\subsubsecentry ##1##2##3##4##5##6{} -\def\unnumbsecentry ##1##2{} -\def\unnumbsubsecentry ##1##2{} -\def\unnumbsubsubsecentry ##1##2{} -\let\medbreak=\smallbreak -\input \jobname.toc -} -\vfill \eject} - -\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend} - -% These macros generate individual entries in the table of contents -% The first argument is the chapter or section name. -% The last argument is the page number. -% The arguments in between are the chapter number, section number, ... - -\def\chapentry #1#2#3{% -\medbreak -\line{#2.\space#1\leaders\hbox to 1em{\hss.\hss}\hfill #3} -} - -\def\unnumbchapentry #1#2{% -\medbreak -\line{#1\leaders\Dotsbox\hfill #2} -} - -\def\secentry #1#2#3#4{% -\line{\enspace\enspace#2.#3\space#1\leaders\Dotsbox\hfill#4} -} - -\def\unnumbsecentry #1#2{% -\line{\enspace\enspace#1\leaders\Dotsbox\hfill #2} -} - -\def\subsecentry #1#2#3#4#5{% -\line{\enspace\enspace\enspace\enspace -#2.#3.#4\space#1\leaders\Dotsbox\hfill #5} -} - -\def\unnumbsubsecentry #1#2{% -\line{\enspace\enspace\enspace\enspace#1\leaders\Dotsbox\hfill #2} -} - -\def\subsubsecentry #1#2#3#4#5#6{% -\line{\enspace\enspace\enspace\enspace\enspace\enspace -#2.#3.#4.#5\space#1\leaders\Dotsbox\hfill #6} -} - -\def\unnumbsubsubsecentry #1#2{% -\line{\enspace\enspace\enspace\enspace\enspace\enspace#1\leaders\Dotsbox\hfill #2} -} - -\message{environments,} - -% @tex ... @end tex escapes into raw Tex temporarily. -% One exception: @ is still an escape character, so that @end tex works. -% But \@ or @@ will get a plain tex @ character. - -\def\tex{\begingroup -\catcode `\\=0 \catcode `\{=1 \catcode `\}=2 -\catcode `\$=3 \catcode `\&=4 \catcode `\#=6 -\catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie -\catcode `\%=14 -\catcode`\"=12 -\catcode`\|=12 -\catcode`\<=12 -\catcode`\>=12 -\escapechar=`\\ -% -\let\{=\ptexlbrace -\let\}=\ptexrbrace -\let\.=\ptexdot -\let\*=\ptexstar -\def\@={@}% -\let\bullet=\ptexbullet -\let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext \let\l=\ptexl -\let\L=\ptexL -% -\let\Etex=\endgroup} - -% Define @lisp ... @endlisp. -% @lisp does a \begingroup so it can rebind things, -% including the definition of @endlisp (which normally is erroneous). - -% Amount to narrow the margins by for @lisp. -\newskip\lispnarrowing \lispnarrowing=0.4in - -% This is the definition that ^M gets inside @lisp -% phr: changed space to \null, to avoid overfull hbox problems. -{\obeyspaces% -\gdef\lisppar{\null\endgraf}} - -% Cause \obeyspaces to make each Space cause a word-separation -% rather than the default which is that it acts punctuation. -% This is because space in tt font looks funny. -{\obeyspaces % -\gdef\sepspaces{\def {\ }}} - -\newskip\aboveenvskipamount \aboveenvskipamount= 0pt -\def\aboveenvbreak{{\advance\aboveenvskipamount by \parskip -\endgraf \ifdim\lastskip<\aboveenvskipamount -\removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}} - -\def\afterenvbreak{\endgraf \ifdim\lastskip<\aboveenvskipamount -\removelastskip \penalty-50 \vskip\aboveenvskipamount \fi} - -\def\lisp{\aboveenvbreak\begingroup\inENV %This group ends at the end of the @lisp body -\hfuzz=12truept % Don't be fussy -% Make spaces be word-separators rather than space tokens. -\sepspaces % -% Single space lines -\singlespace % -% The following causes blank lines not to be ignored -% by adding a space to the end of each line. -\let\par=\lisppar -\def\Elisp{\endgroup\afterenvbreak}% -\parskip=0pt \advance \rightskip by \lispnarrowing -\advance \leftskip by \lispnarrowing -\parindent=0pt -\let\exdent=\internalexdent -\obeyspaces \obeylines \tt \rawbackslash -\def\next##1{}\next} - - -\let\example=\lisp -\def\Eexample{\Elisp} - -\let\smallexample=\lisp -\def\Esmallexample{\Elisp} - -% Macro for 9 pt. examples, necessary to print with 5" lines. -% From Pavel@xerox. This is not really used unless the -% @smallbook command is given. - -\def\smalllispx{\aboveenvbreak\begingroup\inENV -% This group ends at the end of the @lisp body -\hfuzz=12truept % Don't be fussy -% Make spaces be word-separators rather than space tokens. -\sepspaces % -% Single space lines -\singlespace % -% The following causes blank lines not to be ignored -% by adding a space to the end of each line. -\let\par=\lisppar -\def\Esmalllisp{\endgroup\afterenvbreak}% -\parskip=0pt \advance \rightskip by \lispnarrowing -\advance \leftskip by \lispnarrowing -\parindent=0pt -\let\exdent=\internalexdent -\obeyspaces \obeylines \ninett \rawbackslash -\def\next##1{}\next} - -% This is @display; same as @lisp except use roman font. - -\def\display{\begingroup\inENV %This group ends at the end of the @display body -\aboveenvbreak -% Make spaces be word-separators rather than space tokens. -\sepspaces % -% Single space lines -\singlespace % -% The following causes blank lines not to be ignored -% by adding a space to the end of each line. -\let\par=\lisppar -\def\Edisplay{\endgroup\afterenvbreak}% -\parskip=0pt \advance \rightskip by \lispnarrowing -\advance \leftskip by \lispnarrowing -\parindent=0pt -\let\exdent=\internalexdent -\obeyspaces \obeylines -\def\next##1{}\next} - -% This is @format; same as @lisp except use roman font and don't narrow margins - -\def\format{\begingroup\inENV %This group ends at the end of the @format body -\aboveenvbreak -% Make spaces be word-separators rather than space tokens. -\sepspaces % -\singlespace % -% The following causes blank lines not to be ignored -% by adding a space to the end of each line. -\let\par=\lisppar -\def\Eformat{\endgroup\afterenvbreak} -\parskip=0pt \parindent=0pt -\obeyspaces \obeylines -\def\next##1{}\next} - -% @flushleft and @flushright - -\def\flushleft{\begingroup\inENV %This group ends at the end of the @format body -\aboveenvbreak -% Make spaces be word-separators rather than space tokens. -\sepspaces % -% The following causes blank lines not to be ignored -% by adding a space to the end of each line. -% This also causes @ to work when the directive name -% is terminated by end of line. -\let\par=\lisppar -\def\Eflushleft{\endgroup\afterenvbreak}% -\parskip=0pt \parindent=0pt -\obeyspaces \obeylines -\def\next##1{}\next} - -\def\flushright{\begingroup\inENV %This group ends at the end of the @format body -\aboveenvbreak -% Make spaces be word-separators rather than space tokens. -\sepspaces % -% The following causes blank lines not to be ignored -% by adding a space to the end of each line. -% This also causes @ to work when the directive name -% is terminated by end of line. -\let\par=\lisppar -\def\Eflushright{\endgroup\afterenvbreak}% -\parskip=0pt \parindent=0pt -\advance \leftskip by 0pt plus 1fill -\obeyspaces \obeylines -\def\next##1{}\next} - -% @quotation - narrow the margins. - -\def\quotation{\begingroup\inENV %This group ends at the end of the @quotation body -{\parskip=0pt % because we will skip by \parskip too, later -\aboveenvbreak}% -\singlespace -\parindent=0pt -\def\Equotation{\par\endgroup\afterenvbreak}% -\advance \rightskip by \lispnarrowing -\advance \leftskip by \lispnarrowing} - -\message{defuns,} -% Define formatter for defuns -% First, allow user to change definition object font (\df) internally -\def\setdeffont #1 {\csname DEF#1\endcsname} - -\newskip\defbodyindent \defbodyindent=36pt -\newskip\defargsindent \defargsindent=50pt -\newskip\deftypemargin \deftypemargin=12pt -\newskip\deflastargmargin \deflastargmargin=18pt - -\newcount\parencount -% define \functionparens, which makes ( and ) and & do special things. -% \functionparens affects the group it is contained in. -\def\activeparens{% -\catcode`\(=\active \catcode`\)=\active \catcode`\&=\active -\catcode`\[=\active \catcode`\]=\active} -{\activeparens % Now, smart parens don't turn on until &foo (see \amprm) -\gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 } -\gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb} - -% Definitions of (, ) and & used in args for functions. -% This is the definition of ( outside of all parentheses. -\gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested % -\global\advance\parencount by 1 } -% -% This is the definition of ( when already inside a level of parens. -\gdef\opnested{\char`\(\global\advance\parencount by 1 } -% -\gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0. -% also in that case restore the outer-level definition of (. -\ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi -\global\advance \parencount by -1 } -% If we encounter &foo, then turn on ()-hacking afterwards -\gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ } -% -\gdef\normalparens{\boldbrax\let&=\ampnr} -} % End of definition inside \activeparens -%% These parens (in \boldbrax) actually are a little bolder than the -%% contained text. This is especially needed for [ and ] -\def\opnr{{\sf\char`\(}} \def\clnr{{\sf\char`\)}} \def\ampnr{\&} -\def\lbrb{{\tt\char`\[}} \def\rbrb{{\tt\char`\]}} - -% First, defname, which formats the header line itself. -% #1 should be the function name. -% #2 should be the type of definition, such as "Function". - -\def\defname #1#2{% -\leftskip = 0in % -\noindent % -\setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}% -\dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line -\dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations -\parshape 2 0in \dimen0 \defargsindent \dimen1 % -% Now output arg 2 ("Function" or some such) -% ending at \deftypemargin from the right margin, -% but stuck inside a box of width 0 so it does not interfere with linebreaking -\rlap{\rightline{{\rm #2}\hskip \deftypemargin}}% -\tolerance=10000 \hbadness=10000 % Make all lines underfull and no complaints -{\df #1}\enskip % Generate function name -} - -% Actually process the body of a definition -% #1 should be the terminating control sequence, such as \Edefun. -% #2 should be the "another name" control sequence, such as \defunx. -% #3 should be the control sequence that actually processes the header, -% such as \defunheader. - -\def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2{\begingroup\obeylines\activeparens\spacesplit#3}% -\parindent=0in \leftskip=\defbodyindent % -\begingroup\obeylines\activeparens\spacesplit#3} - -\def\defmethparsebody #1#2#3#4 {\begingroup\inENV % -\medbreak % -% Define the end token that this defining construct specifies -% so that it will exit this group. -\def#1{\endgraf\endgroup\medbreak}% -\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}% -\parindent=0in \leftskip=\defbodyindent % -\begingroup\obeylines\activeparens\spacesplit{#3{#4}}} - -% Split up #2 at the first space token. -% call #1 with two arguments: -% the first is all of #2 before the space token, -% the second is all of #2 after that space token. -% If #2 contains no space token, all of it is passed as the first arg -% and the second is passed as empty. - -{\obeylines -\gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}% -\long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{% -\ifx\relax #3% -#1{#2}{}\else #1{#2}{#3#4}\fi}} - -% So much for the things common to all kinds of definitions. - -% Define @defun. - -% First, define the processing that is wanted for arguments of \defun -% Use this to expand the args and terminate the paragraph they make up - -\def\defunargs #1{\functionparens \sl #1% -\ifnum\parencount=0 \else \errmessage{unbalanced parens in @def arguments}\fi% -\interlinepenalty=10000 -\endgraf\vskip -\parskip \penalty 10000} - -% Do complete processing of one @defun or @defunx line already parsed. - -% @deffn Command forward-char nchars - -\def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader} - -\def\deffnheader #1#2#3{\doind {fn}{\code{#2}}% -\begingroup\defname {#2}{#1}\defunargs{#3}\endgroup} - -% @defun == @deffn Function - -\def\defun{\defparsebody\Edefun\defunx\defunheader} - -\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{Function}% -\defunargs {#2}\endgroup % -} - -% @defmac == @deffn Macro - -\def\defmac{\defparsebody\Edefmac\defmacx\defmacheader} - -\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{Macro}% -\defunargs {#2}\endgroup % -} - -% @defspec == @deffn Special Form - -\def\defspec{\defparsebody\Edefspec\defspecx\defspecheader} - -\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{Special form}% -\defunargs {#2}\endgroup % -} - -% This definition is run if you use @defunx -% anywhere other than immediately after a @defun or @defunx. - -\def\deffnx #1 {\errmessage{@deffnx in invalid context}} -\def\defunx #1 {\errmessage{@defunx in invalid context}} -\def\defmacx #1 {\errmessage{@defmacx in invalid context}} -\def\defspecx #1 {\errmessage{@defspecx in invalid context}} - -% @defmethod, and so on - -% @defop {Funny Method} foo-class frobnicate argument - -\def\defop #1 {\def\defoptype{#1}% -\defmethparsebody\Edefop\defopx\defopheader} - -\def\defopheader #1#2#3{\dosubind {fn}{\code{#2}}{on #1}% Make entry in function index -\begingroup\defname {#2}{\defoptype{} on #1}% -\defunargs {#3}\endgroup % -} - -% @defmethod == @defop Method - -\def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader} - -\def\defmethodheader #1#2#3{\dosubind {fn}{\code{#2}}{on #1}% entry in function index -\begingroup\defname {#2}{Operation on #1}% -\defunargs {#3}\endgroup % -} - -% @defcv {Class Option} foo-class foo-flag - -\def\defcv #1 {\def\defcvtype{#1}% -\defmethparsebody\Edefcv\defcvx\defcvheader} - -\def\defcvarheader #1#2#3{% -\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index -\begingroup\defname {#2}{\defcvtype of #1}% -\defvarargs {#3}\endgroup % -} - -% @defivar == @defcv {Instance Variable} - -\def\defivar{\defmethparsebody\Edefivar\defivarx\defivarheader} - -\def\defivarheader #1#2#3{% -\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index -\begingroup\defname {#2}{Instance variable of #1}% -\defvarargs {#3}\endgroup % -} - -% These definitions are run if you use @defmethodx, etc., -% anywhere other than immediately after a @defmethod, etc. - -\def\defopx #1 {\errmessage{@defopx in invalid context}} -\def\defmethodx #1 {\errmessage{@defmethodx in invalid context}} -\def\defcvx #1 {\errmessage{@defcvx in invalid context}} -\def\defivarx #1 {\errmessage{@defivarx in invalid context}} - -% Now @defvar - -% First, define the processing that is wanted for arguments of @defvar. -% This is actually simple: just print them in roman. -% This must expand the args and terminate the paragraph they make up -\def\defvarargs #1{\normalparens #1% -\interlinepenalty=10000 -\endgraf\vskip -\parskip \penalty 10000} - -% @defvr Counter foo-count - -\def\defvr{\defmethparsebody\Edefvr\defvrx\defvrheader} - -\def\defvrheader #1#2#3{\doind {vr}{\code{#2}}% -\begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup} - -% @defvar == @defvr Variable - -\def\defvar{\defparsebody\Edefvar\defvarx\defvarheader} - -\def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index -\begingroup\defname {#1}{Variable}% -\defvarargs {#2}\endgroup % -} - -% @defopt == @defvr {User Option} - -\def\defopt{\defparsebody\Edefopt\defoptx\defoptheader} - -\def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index -\begingroup\defname {#1}{User Option}% -\defvarargs {#2}\endgroup % -} - -% This definition is run if you use @defvarx -% anywhere other than immediately after a @defvar or @defvarx. - -\def\defvrx #1 {\errmessage{@defvrx in invalid context}} -\def\defvarx #1 {\errmessage{@defvarx in invalid context}} -\def\defoptx #1 {\errmessage{@defoptx in invalid context}} - -% Now define @deftp -% Args are printed in bold, a slight difference from @defvar. - -\def\deftpargs #1{\bf \defvarargs{#1}} - -% @deftp Class window height width ... - -\def\deftp{\defmethparsebody\Edeftp\deftpx\deftpheader} - -\def\deftpheader #1#2#3{\doind {tp}{\code{#2}}% -\begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup} - -% This definition is run if you use @deftpx, etc -% anywhere other than immediately after a @deftp, etc. - -\def\deftpx #1 {\errmessage{@deftpx in invalid context}} - -\message{cross reference,} -% Define cross-reference macros -\newwrite \auxfile - -% \setref{foo} defines a cross-reference point named foo. - -\def\setref#1{% -\dosetq{#1-pg}{Ypagenumber}% -\dosetq{#1-snt}{Ysectionnumberandtype}} - -\def\unnumbsetref#1{% -\dosetq{#1-pg}{Ypagenumber}% -\dosetq{#1-snt}{Ynothing}} - -% \xref and \pxref generate cross references to specified points. - -\def\pxref #1{see \xrefX [#1,,,,,,,]} -\def\xref #1{See \xrefX [#1,,,,,,,]} -\def\xrefX [#1,#2,#3,#4,#5,#6]{% -\setbox1=\hbox{\i{\losespace#5{}}}% -\setbox0=\hbox{\losespace#3{}}% -\ifdim \wd0 =0pt \setbox0=\hbox{\losespace#1{}}\fi% -\ifdim \wd1 >0pt% -section \unhbox0{} in \unhbox1% -\else% -\refx{#1-snt} [\unhbox0], page\tie \refx{#1-pg}% -\fi } - -% \dosetq is the interface for calls from other macros - -\def\dosetq #1#2{{\let\folio=0% -\edef\next{\write\auxfile{\internalsetq {#1}{#2}}}% -\next}} - -% \internalsetq {foo}{page} expands into CHARACTERS 'xrdef {foo}{...expansion of \Ypage...} -% When the aux file is read, ' is the escape character - -\def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}} - -% Things to be expanded by \internalsetq - -\def\Ypagenumber{\folio} - -\def\Ynothing{} - -\def\Ysectionnumberandtype{% -\ifnum\secno=0 chapter\xreftie\the\chapno % -\else \ifnum \subsecno=0 section\xreftie\the\chapno.\the\secno % -\else \ifnum \subsubsecno=0 % -section\xreftie\the\chapno.\the\secno.\the\subsecno % -\else % -section\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno % -\fi \fi \fi } - -\gdef\xreftie{'tie} - -% Define @refx to reference a specific cross-reference string. - -\def\refx#1{% -{% -\expandafter\ifx\csname X#1\endcsname\relax -% If not defined, say something at least. -\expandafter\gdef\csname X#1\endcsname {$<$undefined$>$}% -\message {WARNING: Cross-reference "#1" used but not yet defined}% -\message {}% -\fi % -\csname X#1\endcsname %It's defined, so just use it. -}} - -% Read the last existing aux file, if any. No error if none exists. - -% This is the macro invoked by entries in the aux file. -\def\xrdef #1#2{ -{\catcode`\'=\other\expandafter \gdef \csname X#1\endcsname {#2}}} - -{ -\catcode `\^^@=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\^^C=\other -\catcode `\^^D=\other -\catcode `\^^E=\other -\catcode `\^^F=\other -\catcode `\^^G=\other -\catcode `\^^H=\other -\catcode `\ =\other -\catcode `\^^L=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\=\other -\catcode `\^^[=\other -\catcode `\^^\=\other -\catcode `\^^]=\other -\catcode `\^^^=\other -\catcode `\^^_=\other -\catcode `\@=\other -\catcode `\^=\other -\catcode `\~=\other -\catcode `\[=\other -\catcode `\]=\other -\catcode`\"=\other -\catcode`\_=\other -\catcode`\|=\other -\catcode`\<=\other -\catcode`\>=\other -\catcode `\$=\other -\catcode `\#=\other -\catcode `\&=\other - -% the aux file uses ' as the escape. -% Turn off \ as an escape so we do not lose on -% entries which were dumped with control sequences in their names. -% For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^ -% Reference to such entries still does not work the way one would wish, -% but at least they do not bomb out when the aux file is read in. - -\catcode `\{=1 \catcode `\}=2 -\catcode `\%=\other -\catcode `\'=0 -\catcode `\\=\other - -'openin 1 'jobname.aux -'ifeof 1 'else 'closein 1 'input 'jobname.aux -'fi -} - -% Open the new aux file. Tex will close it automatically at exit. - -\openout \auxfile=\jobname.aux - -% Footnotes. - -\newcount \footnoteno - -\def\supereject{\par\penalty -20000\footnoteno =0 } - -\let\ptexfootnote=\footnote - -{\catcode `\@=11 -\gdef\footnote{\global\advance \footnoteno by \@ne -\edef\thisfootno{$^{\the\footnoteno}$}% -\let\@sf\empty -\ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi -\thisfootno\@sf\parsearg\footnotezzz} - -\gdef\footnotezzz #1{\insert\footins{ -\interlinepenalty\interfootnotelinepenalty -\splittopskip\ht\strutbox % top baseline for broken footnotes -\splitmaxdepth\dp\strutbox \floatingpenalty\@MM -\leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip -\footstrut\hang\textindent{\thisfootno}#1\strut}} - -}%end \catcode `\@=11 - -% End of control word definitions. - -\message{and turning on texinfo input format.} - -\newindex{cp} -\newcodeindex{fn} -\newcodeindex{vr} -\newcodeindex{tp} -\newcodeindex{ky} -\newcodeindex{pg} - -% Set some numeric style parameters, for 8.5 x 11 format. - -\hsize = 6.5in -\parindent 15pt -\parskip 18pt plus 1pt -\baselineskip 15pt -\advance\topskip by 1.2cm - -% Prevent underfull vbox error messages. -\vbadness=10000 - -% Use @smallbook to reset parameters for 7x9.5 format -\def\smallbook{ -\global\lispnarrowing = 0.3in -\global\baselineskip 12pt -\global\parskip 3pt plus 1pt -\global\hsize = 5in -\global\doublecolumnhsize=2.4in \global\doublecolumnvsize=15.0in -\global\vsize=7.5in -\global\tolerance=700 -\global\hfuzz=1pt - -\global\pagewidth=\hsize -\global\pageheight=\vsize -\global\font\ninett=cmtt9 - -\global\let\smalllisp=\smalllispx -\global\let\smallexample=\smalllispx -\global\def\Esmallexample{\Esmalllisp} -} - -%% For a final copy, take out the rectangles -%% that mark overfull boxes (in case you have decided -%% that the text looks ok even though it passes the margin). -\def\finalout{\overfullrule=0pt} - -% Turn off all special characters except @ -% (and those which the user can use as if they were ordinary) -% Define certain chars to be always in tt font. - -\catcode`\"=\active -\def\activedoublequote{{\tt \char '042}} -\let"=\activedoublequote -\catcode`\~=\active -\def~{{\tt \char '176}} -\chardef\hat=`\^ -\catcode`\^=\active -\def^{{\tt \hat}} -\catcode`\_=\active -\def_{{\tt \char '137}} -\catcode`\|=\active -\def|{{\tt \char '174}} -\chardef \less=`\< -\catcode`\<=\active -\def<{{\tt \less}} -\chardef \gtr=`\> -\catcode`\>=\active -\def>{{\tt \gtr}} - -\catcode`\@=0 - -% \rawbackslashxx output one backslash character in current font -{\catcode`\\=\other -@gdef@rawbackslashxx{\}} - -% \rawbackslash redefines \ as input to do \rawbackslashxx. -{\catcode`\\=\active -@gdef@rawbackslash{@let\=@rawbackslashxx }} - -% \normalbackslash outputs one backslash in fixed width font. -\def\normalbackslash{{\tt\rawbackslashxx}} - -% Say @foo, not \foo, in error messages. -\escapechar=`\@ - -%% These look ok in all fonts, so just make them not special. The @rm below -%% makes sure that the current font starts out as the newly loaded cmr10 -\catcode`\$=\other \catcode`\%=\other \catcode`\&=\other \catcode`\#=\other - -\catcode 17=0 @c Define control-q -\catcode`\\=\active -@let\=@normalbackslash - -@textfonts -@rm diff --git a/util/et/vfprintf.c b/util/et/vfprintf.c deleted file mode 100644 index 6558992..0000000 --- a/util/et/vfprintf.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1988 Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Berkeley. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -/* based on @(#)vfprintf.c 5.2 (Berkeley) 6/27/88 */ - -#include <stdio.h> -#include <varargs.h> - -int -vfprintf(iop, fmt, ap) - FILE *iop; - char *fmt; - va_list ap; -{ - int len; - char localbuf[BUFSIZ]; - - if (iop->_flag & _IONBF) { - iop->_flag &= ~_IONBF; - iop->_ptr = iop->_base = localbuf; - len = _doprnt(fmt, ap, iop); - (void) fflush(iop); - iop->_flag |= _IONBF; - iop->_base = NULL; - iop->_bufsiz = 0; - iop->_cnt = 0; - } else - len = _doprnt(fmt, ap, iop); - - return (ferror(iop) ? EOF : len); -} diff --git a/util/reconf b/util/reconf deleted file mode 100755 index f10f3ea..0000000 --- a/util/reconf +++ /dev/null @@ -1,18 +0,0 @@ -#!/bin/sh - -force= - -usage="Usage: ./config.status [--recheck] [--version] [--help]" -for option -do - case "$option" in - --force | -f) - echo "Remaking all configuration files" - force=--force ;; - -help | --help | --hel | --he | --h) - echo "$usage"; exit 0 ;; - *) echo "$usage"; exit 1 ;; - esac -done - -./util/autoconf/autoreconf -m util/autoconf -l . --verbose $force |