3 # Process this file with autoconf to produce a configure script.
6 AC_INIT(folly, 0.1, folly@fb.com)
8 m4_define([folly_libtool_current], [1])
10 # We assume all revisions are backwards incompatible.
11 LT_VERSION=folly_libtool_current:0:0
14 AC_CONFIG_SRCDIR([Likely.h])
15 AC_CONFIG_HEADERS([config.h])
16 AX_PREFIX_CONFIG_H([folly-config.h], [folly], [config.h])
17 AC_CONFIG_AUX_DIR([build-aux])
19 AM_INIT_AUTOMAKE([foreign dist-bzip2 nostdinc subdir-objects])
21 AC_CONFIG_MACRO_DIR([m4])
28 # Checks for programs.
31 AC_CXX_COMPILE_STDCXX_0X
33 # Be sure to add any -std option to CXXFLAGS before we invoke any
34 # AC_COMPILE_IFELSE() or similar macros. Any such macros that are invoked
35 # before we update CXXFLAGS will not be run with the same options that we use
36 # during the real build.
38 if test "x$ac_cv_cxx_compile_cxx0x_cxx" = xyes; then
41 if test "x$ac_cv_cxx_compile_cxx0x_gxx" = xyes; then
45 CXXFLAGS="$STD $CXXFLAGS"
47 # Checks for libraries.
48 AC_CHECK_LIB([glog],[openlog],[],[AC_MSG_ERROR(
49 [Please install google-glog library])])
50 AC_CHECK_LIB([gflags],[getenv],[],[AC_MSG_ERROR(
51 [Please install google-gflags library])])
53 # check for boost libs
54 AX_BOOST_BASE([1.20.0], [], [AC_MSG_ERROR(
55 [Please install boost >= 1.20.0 (thread, regex, and system)])])
61 # Checks for header files.
63 AC_CHECK_HEADERS([fcntl.h features.h inttypes.h limits.h stdint.h stdlib.h string.h sys/time.h unistd.h mutex.h malloc.h emmintrin.h byteswap.h bits/functexcept.h bits/c++config.h])
65 AC_CHECK_HEADER(double-conversion/double-conversion.h, [], [AC_MSG_ERROR(
66 [Couldn't find double-conversion.h, please download from \
67 http://code.google.com/p/double-conversion/])], [])
68 AC_CHECK_LIB([double-conversion],[ceil],[],[AC_MSG_ERROR(
69 [Please install double-conversion library])])
71 AC_CHECK_LIB([event], [event_set], [], [AC_MSG_ERROR([Unable to find libevent])])
73 AC_CHECK_LIB([jemalloc], [rallocm])
75 # Checks for typedefs, structures, and compiler characteristics.
82 AC_CHECK_TYPE([__int128],
83 [AC_DEFINE([HAVE_INT128_T], [1], [Define if __int128 exists])],
84 [AC_DEFINE([HAVE_INT128_T], [0], [Define if __int128 does not exist])])
85 AC_CHECK_TYPES([ptrdiff_t])
88 #pragma GCC diagnostic error "-Wattributes"
89 extern "C" void (*test_ifunc(void))() { return 0; }
90 void func() __attribute__((ifunc("test_ifunc")));]
92 [AC_DEFINE([HAVE_IFUNC], [1], [Define to 1 if the compiler supports ifunc])],
93 [AC_DEFINE([HAVE_IFUNC], [0], [Define to 0 if the compiler doesn't support ifunc])]
96 [AC_LANG_SOURCE[class C { virtual void f() final {} virtual void g() {} };
97 class D : public C { virtual void g() override {} };]],
98 [AC_DEFINE([FINAL], [final],
99 [Define to "final" if the compiler supports C++11 "final"])
100 AC_DEFINE([OVERRIDE], [override],
101 [Define to "override" if the compiler supports C++11 "override"])],
102 [AC_DEFINE([FINAL], [],
103 [Define to "final" if the compiler supports C++11 "final"])
104 AC_DEFINE([OVERRIDE], [],
105 [Define to "override" if the compiler supports C++11 "override"])]
112 void func() { std::this_thread::sleep_for(std::chrono::seconds(1)); }]],
113 [AC_DEFINE([HAVE_STD__THIS_THREAD__SLEEP_FOR], [1],
114 [Define to 1 if std::this_thread::sleep_for() is defined.])])
119 static constexpr int val = strlen("foo");]],
120 [AC_DEFINE([HAVE_CONSTEXPR_STRLEN], [1],
121 [Define to 1 if strlen(3) is constexpr.])])
125 #include <type_traits>
131 [AC_DEFINE([USE_LIBCPP], [1], [Define to 1 if we're using libc++.])])
135 #include <type_traits>
136 const bool val = std::is_trivially_copyable<bool>::value;]
138 [AC_DEFINE([HAVE_STD__IS_TRIVIALLY_COPYABLE], [1],
139 [Define to 1 if we have a usable std::is_trivially_copyable<T>
142 # Figure out if we support weak symbols. If not, we will link in some null
143 # stubs for functions that would otherwise be weak.
146 extern "C" void configure_link_extern_weak_test() __attribute__((weak));
147 int main(int argc, char** argv) {
148 return configure_link_extern_weak_test == nullptr;
152 ac_have_weak_symbols="yes"
153 AC_DEFINE([HAVE_WEAK_SYMBOLS], [1],
154 [Define to 1 if the linker supports weak symbols.])])
156 AC_SEARCH_LIBS([cplus_demangle_v3_callback], [iberty])
157 if test "$ac_cv_search_cplus_demangle_v3_callback" != "no" ; then
158 AC_DEFINE([HAVE_CPLUS_DEMANGLE_V3_CALLBACK], [1],
159 [Define to 1 if we have cplus_demangle_v3_callback.])
162 # Check for clock_gettime(2). This is not in an AC_CHECK_FUNCS() because we
163 # want to link with librt if necessary.
164 AC_SEARCH_LIBS([clock_gettime], [rt],
166 [HAVE_CLOCK_GETTIME],
168 [Define to 1 if we support clock_gettime(2).]),
171 # Checks for library functions.
172 AC_CHECK_FUNCS([getdelim \
184 if test "$ac_cv_func_pthread_yield" = "no"; then
185 AC_CHECK_HEADERS([sched.h])
186 AC_CHECK_FUNCS([sched_yield])
189 AC_SUBST(AM_CPPFLAGS, '-I../$(top_srcdir)'" "'-I$(top_srcdir)/io'" "'-I$(top_srcdir)/test'" $BOOST_CPPFLAGS")
190 AC_SUBST(AM_LDFLAGS, "$BOOST_LDFLAGS $BOOST_THREAD_LIB $BOOST_FILESYSTEM_LIB $BOOST_SYSTEM_LIB $BOOST_REGEX_LIB -lpthread")
192 AM_CONDITIONAL([HAVE_STD_THREAD], [test "$ac_cv_header_features" = "yes"])
193 AM_CONDITIONAL([HAVE_X86_64], [test "$build_cpu" = "x86_64"])
194 AM_CONDITIONAL([HAVE_LINUX], [test "$build_os" == "linux-gnu"])
195 AM_CONDITIONAL([HAVE_WEAK_SYMBOLS], [test "$ac_have_weak_symbols" = "yes"])
196 AM_CONDITIONAL([HAVE_BITS_FUNCTEXCEPT], [test "$ac_cv_header_bits_functexcept" = "yes"])
199 AC_CONFIG_FILES([Makefile
201 test/function_benchmark/Makefile])