diff options
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 61 |
1 files changed, 61 insertions, 0 deletions
@@ -59,6 +59,67 @@ m4_ifndef([AC_AUTOCONF_VERSION], [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))]) +# Copyright (C) 2011 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 1 + +# AM_PROG_AR([ACT-IF-FAIL]) +# ------------------------- +# Try to determine the archiver interface, and trigger the ar-lib wrapper +# if it is needed. If the detection of archiver interface fails, run +# ACT-IF-FAIL (default is to abort configure with a proper error message). +AC_DEFUN([AM_PROG_AR], +[AC_BEFORE([$0], [LT_INIT])dnl +AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl +AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl +AC_REQUIRE_AUX_FILE([ar-lib])dnl +AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false]) +: ${AR=ar} + +AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface], + [am_cv_ar_interface=ar + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])], + [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([am_ar_try]) + if test "$ac_status" -eq 0; then + am_cv_ar_interface=ar + else + am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([am_ar_try]) + if test "$ac_status" -eq 0; then + am_cv_ar_interface=lib + else + am_cv_ar_interface=unknown + fi + fi + rm -f conftest.lib libconftest.a + ]) + ]) + +case $am_cv_ar_interface in +ar) + ;; +lib) + # Microsoft lib, so override with the ar-lib wrapper script. + # FIXME: It is wrong to rewrite AR. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__AR in this case, + # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something + # similar. + AR="$am_aux_dir/ar-lib $AR" + ;; +unknown) + m4_default([$1], + [AC_MSG_ERROR([could not determine $AR interface])]) + ;; +esac +AC_SUBST([AR])dnl +]) + # AM_AUX_DIR_EXPAND -*- Autoconf -*- # Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc. |