| m4_define([snappy_major], [1]) |
| m4_define([snappy_minor], [1]) |
| m4_define([snappy_patchlevel], [2]) |
| |
| # Libtool shared library interface versions (current:revision:age) |
| # Update this value for every release! (A:B:C will map to foo.so.(A-C).C.B) |
| # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html |
| m4_define([snappy_ltversion], [3:1:2]) |
| |
| AC_INIT([snappy], [snappy_major.snappy_minor.snappy_patchlevel]) |
| AC_CONFIG_MACRO_DIR([m4]) |
| |
| # These are flags passed to automake (though they look like gcc flags!) |
| AM_INIT_AUTOMAKE([-Wall]) |
| |
| LT_INIT |
| AC_SUBST([LIBTOOL_DEPS]) |
| AC_PROG_CXX |
| AC_LANG([C++]) |
| AC_C_BIGENDIAN |
| AC_TYPE_SIZE_T |
| AC_TYPE_SSIZE_T |
| AC_CHECK_HEADERS([stdint.h stddef.h sys/mman.h sys/resource.h windows.h byteswap.h sys/byteswap.h sys/endian.h sys/time.h]) |
| |
| # Don't use AC_FUNC_MMAP, as it checks for mappings of already-mapped memory, |
| # which we don't need (and does not exist on Windows). |
| AC_CHECK_FUNC([mmap]) |
| |
| GTEST_LIB_CHECK([], [true], [true # Ignore; we can live without it.]) |
| |
| AC_ARG_WITH([gflags], |
| [AS_HELP_STRING( |
| [--with-gflags], |
| [use Google Flags package to enhance the unit test @<:@default=check@:>@])], |
| [], |
| [with_gflags=check]) |
| |
| if test "x$with_gflags" != "xno"; then |
| PKG_CHECK_MODULES( |
| [gflags], |
| [libgflags], |
| [AC_DEFINE([HAVE_GFLAGS], [1], [Use the gflags package for command-line parsing.])], |
| [if test "x$with_gflags" != "xcheck"; then |
| AC_MSG_FAILURE([--with-gflags was given, but test for gflags failed]) |
| fi]) |
| fi |
| |
| # See if we have __builtin_expect. |
| # TODO: Use AC_CACHE. |
| AC_MSG_CHECKING([if the compiler supports __builtin_expect]) |
| |
| AC_TRY_COMPILE(, [ |
| return __builtin_expect(1, 1) ? 1 : 0 |
| ], [ |
| snappy_have_builtin_expect=yes |
| AC_MSG_RESULT([yes]) |
| ], [ |
| snappy_have_builtin_expect=no |
| AC_MSG_RESULT([no]) |
| ]) |
| if test x$snappy_have_builtin_expect = xyes ; then |
| AC_DEFINE([HAVE_BUILTIN_EXPECT], [1], [Define to 1 if the compiler supports __builtin_expect.]) |
| fi |
| |
| # See if we have working count-trailing-zeros intrinsics. |
| # TODO: Use AC_CACHE. |
| AC_MSG_CHECKING([if the compiler supports __builtin_ctzll]) |
| |
| AC_TRY_COMPILE(, [ |
| return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0 |
| ], [ |
| snappy_have_builtin_ctz=yes |
| AC_MSG_RESULT([yes]) |
| ], [ |
| snappy_have_builtin_ctz=no |
| AC_MSG_RESULT([no]) |
| ]) |
| if test x$snappy_have_builtin_ctz = xyes ; then |
| AC_DEFINE([HAVE_BUILTIN_CTZ], [1], [Define to 1 if the compiler supports __builtin_ctz and friends.]) |
| fi |
| |
| # Other compression libraries; the unit test can use these for comparison |
| # if they are available. If they are not found, just ignore. |
| UNITTEST_LIBS="" |
| AC_DEFUN([CHECK_EXT_COMPRESSION_LIB], [ |
| AH_CHECK_LIB([$1]) |
| AC_CHECK_LIB( |
| [$1], |
| [$2], |
| [ |
| AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1)) |
| UNITTEST_LIBS="-l$1 $UNITTEST_LIBS" |
| ], |
| [true] |
| ) |
| ]) |
| CHECK_EXT_COMPRESSION_LIB([z], [zlibVersion]) |
| CHECK_EXT_COMPRESSION_LIB([lzo2], [lzo1x_1_15_compress]) |
| CHECK_EXT_COMPRESSION_LIB([lzf], [lzf_compress]) |
| CHECK_EXT_COMPRESSION_LIB([fastlz], [fastlz_compress]) |
| CHECK_EXT_COMPRESSION_LIB([quicklz], [qlz_compress]) |
| AC_SUBST([UNITTEST_LIBS]) |
| |
| # These are used by snappy-stubs-public.h.in. |
| if test "$ac_cv_header_stdint_h" = "yes"; then |
| AC_SUBST([ac_cv_have_stdint_h], [1]) |
| else |
| AC_SUBST([ac_cv_have_stdint_h], [0]) |
| fi |
| if test "$ac_cv_header_stddef_h" = "yes"; then |
| AC_SUBST([ac_cv_have_stddef_h], [1]) |
| else |
| AC_SUBST([ac_cv_have_stddef_h], [0]) |
| fi |
| if test "$ac_cv_header_sys_uio_h" = "yes"; then |
| AC_SUBST([ac_cv_have_sys_uio_h], [1]) |
| else |
| AC_SUBST([ac_cv_have_sys_uio_h], [0]) |
| fi |
| |
| # Export the version to snappy-stubs-public.h. |
| SNAPPY_MAJOR="snappy_major" |
| SNAPPY_MINOR="snappy_minor" |
| SNAPPY_PATCHLEVEL="snappy_patchlevel" |
| |
| AC_SUBST([SNAPPY_MAJOR]) |
| AC_SUBST([SNAPPY_MINOR]) |
| AC_SUBST([SNAPPY_PATCHLEVEL]) |
| AC_SUBST([SNAPPY_LTVERSION], snappy_ltversion) |
| |
| AC_CONFIG_HEADERS([config.h]) |
| AC_CONFIG_FILES([Makefile snappy-stubs-public.h]) |
| AC_OUTPUT |