Wink Saville | fbaaef9 | 2010-05-27 16:25:37 -0700 | [diff] [blame] | 1 | ## Process this file with autoconf to produce configure. |
| 2 | ## In general, the safest way to proceed is to run ./autogen.sh |
| 3 | |
| 4 | AC_PREREQ(2.59) |
| 5 | |
| 6 | # Note: If you change the version, you must also update it in: |
| 7 | # * java/pom.xml |
| 8 | # * python/setup.py |
| 9 | # * src/google/protobuf/stubs/common.h |
| 10 | # * src/Makefile.am (Update -version-info for LDFLAGS if needed) |
| 11 | # |
| 12 | # In the SVN trunk, the version should always be the next anticipated release |
| 13 | # version with the "-pre" suffix. (We used to use "-SNAPSHOT" but this pushed |
| 14 | # the size of one file name in the dist tarfile over the 99-char limit.) |
Wink Saville | d033295 | 2010-05-29 13:00:38 -0700 | [diff] [blame] | 15 | AC_INIT([Protocol Buffers],[2.3.0],[protobuf@googlegroups.com],[protobuf]) |
Wink Saville | fbaaef9 | 2010-05-27 16:25:37 -0700 | [diff] [blame] | 16 | |
| 17 | |
| 18 | AC_CONFIG_SRCDIR(src/google/protobuf/message.cc) |
| 19 | AC_CONFIG_HEADERS([config.h]) |
| 20 | AC_CONFIG_MACRO_DIR([m4]) |
| 21 | |
| 22 | # autoconf's default CXXFLAGS are usually "-g -O2". These aren't necessarily |
| 23 | # the best choice for libprotobuf. |
| 24 | AS_IF([test "x${ac_cv_env_CFLAGS_set}" = "x"], |
| 25 | [CFLAGS=""]) |
| 26 | AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"], |
| 27 | [CXXFLAGS=""]) |
| 28 | |
| 29 | AC_CANONICAL_TARGET |
| 30 | |
| 31 | AM_INIT_AUTOMAKE |
| 32 | |
| 33 | AC_ARG_WITH([zlib], |
| 34 | [AS_HELP_STRING([--with-zlib], |
| 35 | [include classes for streaming compressed data in and out @<:@default=check@:>@])], |
| 36 | [],[with_zlib=check]) |
| 37 | |
| 38 | AC_ARG_WITH([protoc], |
| 39 | [AS_HELP_STRING([--with-protoc=COMMAND], |
| 40 | [use the given protoc command instead of building a new one when building tests (useful for cross-compiling)])], |
| 41 | [],[with_protoc=no]) |
| 42 | |
| 43 | # Checks for programs. |
| 44 | AC_PROG_CC |
| 45 | AC_PROG_CXX |
| 46 | AC_LANG([C++]) |
| 47 | ACX_USE_SYSTEM_EXTENSIONS |
| 48 | AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc |
| 49 | |
| 50 | # test_util.cc takes forever to compile with GCC and optimization turned on. |
| 51 | AC_MSG_CHECKING([C++ compiler flags...]) |
| 52 | AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"],[ |
| 53 | AS_IF([test "$GCC" = "yes"],[ |
| 54 | PROTOBUF_OPT_FLAG="-O2" |
| 55 | CXXFLAGS="${CXXFLAGS} -g" |
| 56 | ]) |
| 57 | |
| 58 | # Protocol Buffers contains several checks that are intended to be used only |
| 59 | # for debugging and which might hurt performance. Most users are probably |
| 60 | # end users who don't want these checks, so add -DNDEBUG by default. |
| 61 | CXXFLAGS="$CXXFLAGS -DNDEBUG" |
| 62 | |
| 63 | AC_MSG_RESULT([use default: $PROTOBUF_OPT_FLAG $CXXFLAGS]) |
| 64 | ],[ |
| 65 | AC_MSG_RESULT([use user-supplied: $CXXFLAGS]) |
| 66 | ]) |
| 67 | |
| 68 | AC_SUBST(PROTOBUF_OPT_FLAG) |
| 69 | |
| 70 | ACX_CHECK_SUNCC |
| 71 | |
| 72 | # Have to do libtool after SUNCC, other wise it "helpfully" adds Crun Cstd |
| 73 | # to the link |
| 74 | AC_PROG_LIBTOOL |
| 75 | |
| 76 | # Checks for header files. |
| 77 | AC_HEADER_STDC |
| 78 | AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h stdlib.h unistd.h]) |
| 79 | |
| 80 | # Checks for library functions. |
| 81 | AC_FUNC_MEMCMP |
| 82 | AC_FUNC_STRTOD |
| 83 | AC_CHECK_FUNCS([ftruncate memset mkdir strchr strerror strtol]) |
| 84 | |
Wink Saville | d033295 | 2010-05-29 13:00:38 -0700 | [diff] [blame] | 85 | # Check for zlib. |
Wink Saville | fbaaef9 | 2010-05-27 16:25:37 -0700 | [diff] [blame] | 86 | HAVE_ZLIB=0 |
Wink Saville | d033295 | 2010-05-29 13:00:38 -0700 | [diff] [blame] | 87 | AS_IF([test "$with_zlib" != no], [ |
| 88 | AC_MSG_CHECKING([zlib version]) |
| 89 | |
| 90 | # First check the zlib header version. |
| 91 | AC_COMPILE_IFELSE( |
| 92 | AC_LANG_PROGRAM([[ |
| 93 | #include <zlib.h> |
| 94 | #if !defined(ZLIB_VERNUM) || (ZLIB_VERNUM < 0x1204) |
| 95 | # error zlib version too old |
| 96 | #endif |
| 97 | ]], []), [ |
| 98 | AC_MSG_RESULT([ok (1.2.0.4 or later)]) |
| 99 | |
| 100 | # Also need to add -lz to the linker flags and make sure this succeeds. |
| 101 | AC_SEARCH_LIBS([zlibVersion], [z], [ |
| 102 | AC_DEFINE([HAVE_ZLIB], [1], [Enable classes using zlib compression.]) |
| 103 | HAVE_ZLIB=1 |
| 104 | ], [ |
| 105 | AS_IF([test "$with_zlib" != check], [ |
| 106 | AC_MSG_FAILURE([--with-zlib was given, but no working zlib library was found]) |
| 107 | ]) |
| 108 | ]) |
| 109 | ], [ |
| 110 | AS_IF([test "$with_zlib" = check], [ |
| 111 | AC_MSG_RESULT([headers missing or too old (requires 1.2.0.4)]) |
| 112 | ], [ |
| 113 | AC_MSG_FAILURE([--with-zlib was given, but zlib headers were not present or were too old (requires 1.2.0.4)]) |
| 114 | ]) |
| 115 | ]) |
| 116 | ]) |
Wink Saville | fbaaef9 | 2010-05-27 16:25:37 -0700 | [diff] [blame] | 117 | AM_CONDITIONAL([HAVE_ZLIB], [test $HAVE_ZLIB = 1]) |
| 118 | |
| 119 | AS_IF([test "$with_protoc" != "no"], [ |
| 120 | PROTOC=$with_protoc |
| 121 | AS_IF([test "$with_protoc" == "yes"], [ |
| 122 | # No argument given. Use system protoc. |
| 123 | PROTOC=protoc |
| 124 | ]) |
| 125 | AS_IF([echo "$PROTOC" | grep -q '^@<:@^/@:>@.*/'], [ |
| 126 | # Does not start with a slash, but contains a slash. So, it's a relative |
| 127 | # path (as opposed to an absolute path or an executable in $PATH). |
| 128 | # Since it will actually be executed from the src directory, prefix with |
| 129 | # the current directory. We also insert $ac_top_build_prefix in case this |
| 130 | # is a nested package and --with-protoc was actually given on the outer |
| 131 | # package's configure script. |
| 132 | PROTOC=`pwd`/${ac_top_build_prefix}$PROTOC |
| 133 | ]) |
| 134 | AC_SUBST([PROTOC]) |
| 135 | ]) |
| 136 | AM_CONDITIONAL([USE_EXTERNAL_PROTOC], [test "$with_protoc" != "no"]) |
| 137 | |
| 138 | ACX_PTHREAD |
| 139 | AC_CXX_STL_HASH |
| 140 | |
Wink Saville | d033295 | 2010-05-29 13:00:38 -0700 | [diff] [blame] | 141 | # HACK: Make gtest's configure script pick up our copy of CFLAGS and CXXFLAGS, |
| 142 | # since the flags added by ACX_CHECK_SUNCC must be used when compiling gtest |
| 143 | # too. |
| 144 | export CFLAGS |
Wink Saville | fbaaef9 | 2010-05-27 16:25:37 -0700 | [diff] [blame] | 145 | export CXXFLAGS |
| 146 | AC_CONFIG_SUBDIRS([gtest]) |
| 147 | |
| 148 | AC_CONFIG_FILES([Makefile src/Makefile protobuf.pc protobuf-lite.pc]) |
| 149 | AC_OUTPUT |