## Process this file with autoconf to produce configure. ## In general, the safest way to proceed is to run ./autogen.sh AC_PREREQ(2.59) # Note: If you change the version, you must also update it in: # * Protobuf.podspec # * csharp/Google.Protobuf.Tools.nuspec # * csharp/src/*/AssemblyInfo.cs # * csharp/src/Google.Protobuf/Google.Protobuf.nuspec # * java/*/pom.xml # * python/google/protobuf/__init__.py # * protoc-artifacts/pom.xml # * src/google/protobuf/stubs/common.h # * src/Makefile.am (Update -version-info for LDFLAGS if needed) # # In the SVN trunk, the version should always be the next anticipated release # version with the "-pre" suffix. (We used to use "-SNAPSHOT" but this pushed # the size of one file name in the dist tarfile over the 99-char limit.) AC_INIT([Protocol Buffers],[3.5.1],[protobuf@googlegroups.com],[protobuf]) AM_MAINTAINER_MODE([enable]) AC_CONFIG_SRCDIR(src/google/protobuf/message.cc) # The config file is generated but not used by the source code, since we only # need very few of them, e.g. HAVE_PTHREAD and HAVE_ZLIB. Those macros are # passed down in CXXFLAGS manually in src/Makefile.am AC_CONFIG_HEADERS([config.h]) AC_CONFIG_MACRO_DIR([m4]) AC_ARG_VAR(DIST_LANG, [language to include in the distribution package (i.e., make dist)]) case "$DIST_LANG" in "") DIST_LANG=all ;; all | cpp | csharp | java | python | javanano | objectivec | ruby | js | php) ;; *) AC_MSG_FAILURE([unknown language: $DIST_LANG]) ;; esac AC_SUBST(DIST_LANG) # autoconf's default CXXFLAGS are usually "-g -O2". These aren't necessarily # the best choice for libprotobuf. AS_IF([test "x${ac_cv_env_CFLAGS_set}" = "x"], [CFLAGS=""]) AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"], [CXXFLAGS=""]) AC_CANONICAL_TARGET AM_INIT_AUTOMAKE([1.9 tar-ustar subdir-objects]) AC_ARG_WITH([zlib], [AS_HELP_STRING([--with-zlib], [include classes for streaming compressed data in and out @<:@default=check@:>@])], [],[with_zlib=check]) AC_ARG_WITH([zlib-include], [AS_HELP_STRING([--with-zlib-include=PATH], [zlib include directory])], [CPPFLAGS="-I$withval $CPPFLAGS"]) AC_ARG_WITH([zlib-lib], [AS_HELP_STRING([--with-zlib-lib=PATH], [zlib lib directory])], [LDFLAGS="-L$withval $LDFLAGS"]) AC_ARG_WITH([protoc], [AS_HELP_STRING([--with-protoc=COMMAND], [use the given protoc command instead of building a new one when building tests (useful for cross-compiling)])], [],[with_protoc=no]) # Checks for programs. AC_PROG_CC AC_PROG_CXX AC_PROG_CXX_FOR_BUILD AC_LANG([C++]) ACX_USE_SYSTEM_EXTENSIONS m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc AC_PROG_OBJC # test_util.cc takes forever to compile with GCC and optimization turned on. AC_MSG_CHECKING([C++ compiler flags...]) AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"],[ AS_IF([test "$GCC" = "yes"],[ PROTOBUF_OPT_FLAG="-O2" CXXFLAGS="${CXXFLAGS} -g" ]) # Protocol Buffers contains several checks that are intended to be used only # for debugging and which might hurt performance. Most users are probably # end users who don't want these checks, so add -DNDEBUG by default. CXXFLAGS="$CXXFLAGS -DNDEBUG" AC_MSG_RESULT([use default: $PROTOBUF_OPT_FLAG $CXXFLAGS]) ],[ AC_MSG_RESULT([use user-supplied: $CXXFLAGS]) ]) AC_SUBST(PROTOBUF_OPT_FLAG) ACX_CHECK_SUNCC # Have to do libtool after SUNCC, other wise it "helpfully" adds Crun Cstd # to the link AC_PROG_LIBTOOL # Check whether the linker supports version scripts AC_MSG_CHECKING([whether the linker supports version scripts]) save_LDFLAGS=$LDFLAGS LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" cat > conftest.map < #if !defined(ZLIB_VERNUM) || (ZLIB_VERNUM < 0x1204) # error zlib version too old #endif ]], [])], [ AC_MSG_RESULT([ok (1.2.0.4 or later)]) # Also need to add -lz to the linker flags and make sure this succeeds. AC_SEARCH_LIBS([zlibVersion], [z], [ AC_DEFINE([HAVE_ZLIB], [1], [Enable classes using zlib compression.]) HAVE_ZLIB=1 ], [ AS_IF([test "$with_zlib" != check], [ AC_MSG_FAILURE([--with-zlib was given, but no working zlib library was found]) ]) ]) ], [ AS_IF([test "$with_zlib" = check], [ AC_MSG_RESULT([headers missing or too old (requires 1.2.0.4)]) ], [ AC_MSG_FAILURE([--with-zlib was given, but zlib headers were not present or were too old (requires 1.2.0.4)]) ]) ]) ]) AM_CONDITIONAL([HAVE_ZLIB], [test $HAVE_ZLIB = 1]) AS_IF([test "$with_protoc" != "no"], [ PROTOC=$with_protoc AS_IF([test "$with_protoc" = "yes"], [ # No argument given. Use system protoc. PROTOC=protoc ]) AS_IF([echo "$PROTOC" | grep -q '^@<:@^/@:>@.*/'], [ # Does not start with a slash, but contains a slash. So, it's a relative # path (as opposed to an absolute path or an executable in $PATH). # Since it will actually be executed from the src directory, prefix with # the current directory. We also insert $ac_top_build_prefix in case this # is a nested package and --with-protoc was actually given on the outer # package's configure script. PROTOC=`pwd`/${ac_top_build_prefix}$PROTOC ]) AC_SUBST([PROTOC]) ]) AM_CONDITIONAL([USE_EXTERNAL_PROTOC], [test "$with_protoc" != "no"]) AX_PTHREAD AM_CONDITIONAL([HAVE_PTHREAD], [test "x$ax_pthread_ok" = "xyes"]) # We still keep this for improving pbconfig.h for unsupported platforms. AC_CXX_STL_HASH case "$target_os" in mingw* | cygwin* | win* | aix*) ;; *) # Need to link against rt on Solaris AC_SEARCH_LIBS([sched_yield], [rt], [], [AC_MSG_FAILURE([sched_yield was not found on your system])]) ;; esac # Enable ObjC support for conformance directory on OS X. OBJC_CONFORMANCE_TEST=0 case "$target_os" in darwin*) OBJC_CONFORMANCE_TEST=1 ;; esac AM_CONDITIONAL([OBJC_CONFORMANCE_TEST], [test $OBJC_CONFORMANCE_TEST = 1]) AX_CXX_COMPILE_STDCXX([11], [noext], [optional]) # HACK: Make gmock's configure script pick up our copy of CFLAGS and CXXFLAGS, # since the flags added by ACX_CHECK_SUNCC must be used when compiling gmock # too. export CFLAGS export CXXFLAGS AC_CONFIG_SUBDIRS([third_party/googletest]) AC_CONFIG_FILES([Makefile src/Makefile benchmarks/Makefile conformance/Makefile protobuf.pc protobuf-lite.pc]) AC_OUTPUT