fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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126 lines
3.7 KiB
126 lines
3.7 KiB
m4_define([snappy_major], [1])
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m4_define([snappy_minor], [0])
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m4_define([snappy_patchlevel], [5])
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# Libtool shared library interface versions (current:revision:age)
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# Update this value for every release! (A:B:C will map to foo.so.(A-C).C.B)
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# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
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m4_define([snappy_ltversion], [2:3:1])
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AC_INIT([snappy], [snappy_major.snappy_minor.snappy_patchlevel])
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AC_CONFIG_MACRO_DIR([m4])
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# These are flags passed to automake (though they look like gcc flags!)
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AM_INIT_AUTOMAKE([-Wall -Werror])
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LT_INIT
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AC_SUBST([LIBTOOL_DEPS])
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AC_PROG_CXX
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AC_LANG([C++])
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AC_C_BIGENDIAN
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AC_CHECK_HEADERS([stdint.h stddef.h sys/mman.h sys/resource.h windows.h byteswap.h sys/byteswap.h sys/endian.h])
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# Don't use AC_FUNC_MMAP, as it checks for mappings of already-mapped memory,
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# which we don't need (and does not exist on Windows).
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AC_CHECK_FUNC([mmap])
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GTEST_LIB_CHECK([], [true], [true # Ignore; we can live without it.])
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AC_ARG_WITH([gflags],
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[AS_HELP_STRING(
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[--with-gflags],
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[use Google Flags package to enhance the unit test @<:@default=check@:>@])],
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[],
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[with_gflags=check])
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if test "x$with_gflags" != "xno"; then
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PKG_CHECK_MODULES(
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[gflags],
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[libgflags],
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[AC_DEFINE([HAVE_GFLAGS], [1], [Use the gflags package for command-line parsing.])],
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[if test "x$with_gflags" != "xcheck"; then
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AC_MSG_FAILURE([--with-gflags was given, but test for gflags failed])
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fi])
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fi
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# See if we have __builtin_expect.
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# TODO: Use AC_CACHE.
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AC_MSG_CHECKING([if the compiler supports __builtin_expect])
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AC_TRY_COMPILE(, [
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return __builtin_expect(1, 1) ? 1 : 0
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], [
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snappy_have_builtin_expect=yes
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AC_MSG_RESULT([yes])
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], [
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snappy_have_builtin_expect=no
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AC_MSG_RESULT([no])
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])
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if test x$snappy_have_builtin_expect = xyes ; then
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AC_DEFINE([HAVE_BUILTIN_EXPECT], [1], [Define to 1 if the compiler supports __builtin_expect.])
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fi
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# See if we have working count-trailing-zeros intrinsics.
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# TODO: Use AC_CACHE.
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AC_MSG_CHECKING([if the compiler supports __builtin_ctzll])
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AC_TRY_COMPILE(, [
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return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0
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], [
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snappy_have_builtin_ctz=yes
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AC_MSG_RESULT([yes])
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], [
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snappy_have_builtin_ctz=no
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AC_MSG_RESULT([no])
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])
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if test x$snappy_have_builtin_ctz = xyes ; then
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AC_DEFINE([HAVE_BUILTIN_CTZ], [1], [Define to 1 if the compiler supports __builtin_ctz and friends.])
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fi
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# Other compression libraries; the unit test can use these for comparison
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# if they are available. If they are not found, just ignore.
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UNITTEST_LIBS=""
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AC_DEFUN([CHECK_EXT_COMPRESSION_LIB], [
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AH_CHECK_LIB([$1])
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AC_CHECK_LIB(
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[$1],
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[$2],
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[
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AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1))
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UNITTEST_LIBS="-l$1 $UNITTEST_LIBS"
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],
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[true]
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)
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])
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CHECK_EXT_COMPRESSION_LIB([z], [zlibVersion])
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CHECK_EXT_COMPRESSION_LIB([lzo2], [lzo1x_1_15_compress])
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CHECK_EXT_COMPRESSION_LIB([lzf], [lzf_compress])
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CHECK_EXT_COMPRESSION_LIB([fastlz], [fastlz_compress])
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CHECK_EXT_COMPRESSION_LIB([quicklz], [qlz_compress])
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AC_SUBST([UNITTEST_LIBS])
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# These are used by snappy-stubs-public.h.in.
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if test "$ac_cv_header_stdint_h" = "yes"; then
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AC_SUBST([ac_cv_have_stdint_h], [1])
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else
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AC_SUBST([ac_cv_have_stdint_h], [0])
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fi
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if test "$ac_cv_header_stddef_h" = "yes"; then
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AC_SUBST([ac_cv_have_stddef_h], [1])
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else
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AC_SUBST([ac_cv_have_stddef_h], [0])
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fi
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# Export the version to snappy-stubs-public.h.
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SNAPPY_MAJOR="snappy_major"
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SNAPPY_MINOR="snappy_minor"
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SNAPPY_PATCHLEVEL="snappy_patchlevel"
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AC_SUBST([SNAPPY_MAJOR])
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AC_SUBST([SNAPPY_MINOR])
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AC_SUBST([SNAPPY_PATCHLEVEL])
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AC_SUBST([SNAPPY_LTVERSION], snappy_ltversion)
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AC_CONFIG_HEADERS([config.h])
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AC_CONFIG_FILES([Makefile snappy-stubs-public.h])
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AC_OUTPUT
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