AC_INIT([minisketch], [0.0.1], [http://github.com/sipa/minisketch/]) m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_PREREQ(2.60) AC_CONFIG_SRCDIR([src/minisketch.cpp]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_MACRO_DIR([build-aux/m4]) AM_INIT_AUTOMAKE([subdir-objects foreign]) LT_INIT LT_LANG([C++]) AC_LANG([C++]) AC_PATH_PROG(CCACHE,ccache) AC_ARG_ENABLE([ccache], [AS_HELP_STRING([--disable-ccache], [do not use ccache for building (default is to use if found)])], [use_ccache=$enableval], [use_ccache=auto]) AC_ARG_ENABLE(tests, AS_HELP_STRING([--enable-tests],[compile tests (default is yes)]), [use_tests=$enableval], [use_tests=yes]) AC_ARG_ENABLE(benchmark, AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is no)]), [use_benchmark=$enableval], [use_benchmark=no]) m4_define([SUPPORTED_FIELDS], [2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64]) AC_MSG_CHECKING([which field sizes to build]) AC_ARG_ENABLE([fields], AS_HELP_STRING([--enable-fields=LIST], [Comma-separated list of field sizes to build. Default=all. Available sizes:] m4_translit(m4_defn([SUPPORTED_FIELDS]), [,], [ ])), [], [enable_fields=SUPPORTED_FIELDS]) have_disabled_fields=no have_enabled_fields=no m4_foreach([FIELD], [SUPPORTED_FIELDS], [ case ",$enable_fields," in *,FIELD,*) have_enabled_fields=yes ;; *) AC_DEFINE(DISABLE_FIELD_[]FIELD, [1], [Define to 1 to remove support for field size] FIELD [.]) have_disabled_fields=yes ;; esac ]) AC_MSG_RESULT([$enable_fields]) if test "x$have_enabled_fields" = xno; then AC_MSG_ERROR([No field sizes are enabled.]) fi AX_CHECK_COMPILE_FLAG([-Werror],[CXXFLAG_WERROR="-Werror"],[CXXFLAG_WERROR=""]) AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory]) enable_clmul= AX_CHECK_COMPILE_FLAG([-mpclmul],[[enable_clmul=yes]],,[[$CXXFLAG_WERROR]],[AC_LANG_PROGRAM([ #include #include ], [ __m128i a = _mm_cvtsi64_si128((uint64_t)7); __m128i b = _mm_clmulepi64_si128(a, a, 37); __m128i c = _mm_srli_epi64(b, 41); __m128i d = _mm_xor_si128(b, c); uint64_t e = _mm_cvtsi128_si64(d); return e == 0; ])]) if test x$enable_clmul = xyes; then CLMUL_CXXFLAGS="-mpclmul" AC_DEFINE(HAVE_CLMUL, 1, [Define this symbol if clmul instructions can be used]) fi AC_MSG_CHECKING(for working clz builtins) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ unsigned a = __builtin_clz(1); unsigned long b = __builtin_clzl(1); unsigned long long c = __builtin_clzll(1); ])], [ AC_DEFINE(HAVE_CLZ, 1, [Define this symbol if clz builtins are present and working]) AC_MSG_RESULT(yes) ],[ AC_MSG_RESULT(no) ] ) AX_CHECK_LINK_FLAG([[-Wl,--exclude-libs,ALL]],[LDFLAGS="-Wl,--exclude-libs,ALL $LDFLAGS"]) case $host in *mingw*) dnl -static is interpreted by libtool, where it has a different meaning. dnl In libtool-speak, it's -all-static. AX_CHECK_LINK_FLAG([[-static]],[LIBTOOL_APP_LDFLAGS="$LIBTOOL_APP_LDFLAGS -all-static"]) ;; *) AX_CHECK_LINK_FLAG([[-static]],[LIBTOOL_APP_LDFLAGS="-static"]) ;; esac AX_CHECK_COMPILE_FLAG([-Wall],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wall"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],[CXXFLAGS="$CXXFLAGS -fvisibility=hidden"],[],[$CXXFLAG_WERROR]) ## Some compilers (gcc) ignore unknown -Wno-* options, but warn about all ## unknown options if any other warning is produced. Test the -Wfoo case, and ## set the -Wno-foo case if it works. AX_CHECK_COMPILE_FLAG([-Wshift-count-overflow],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-shift-count-overflow"],,[[$CXXFLAG_WERROR]]) if test "x$use_ccache" != "xno"; then AC_MSG_CHECKING(if ccache should be used) if test x$CCACHE = x; then if test "x$use_ccache" = "xyes"; then AC_MSG_ERROR([ccache not found.]); else use_ccache=no fi else use_ccache=yes CC="$ac_cv_path_CCACHE $CC" CXX="$ac_cv_path_CCACHE $CXX" fi AC_MSG_RESULT($use_ccache) fi VERIFY_DEFINES=-DMINISKETCH_VERIFY RELEASE_DEFINES= AC_CONFIG_FILES([ Makefile ]) AC_SUBST(CLMUL_CXXFLAGS) AC_SUBST(WARN_CXXFLAGS) AC_SUBST(NOWARN_CXXFLAGS) AC_SUBST(VERIFY_DEFINES) AC_SUBST(RELEASE_DEFINES) AC_SUBST(LIBTOOL_APP_LDFLAGS) AM_CONDITIONAL([ENABLE_CLMUL],[test x$enable_clmul = xyes]) AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"]) AM_CONDITIONAL([USE_TESTS], [test x"$use_tests" != x"no"]) AC_OUTPUT echo echo "Build Options:" echo " with benchmarks = $use_benchmark" echo " with tests = $use_tests" echo " enable clmul fields = $enable_clmul" echo " CXX = $CXX" echo " CXXFLAGS = $CXXFLAGS" echo " CPPFLAGS = $CPPFLAGS" echo " LDFLAGS = $LDFLAGS" if test "$have_disabled_fields" = "yes"; then echo echo "Only compiling in support for field sizes: $enable_fields" echo "WARNING: this means the library will lack support for other field sizes entirely" fi