3 # Process this file with autoconf to produce a configure script.
7 m4_define([folly_version_str], m4_esyscmd_s([cat VERSION]))
9 AC_INIT([folly], m4_translit(folly_version_str, [:], [.]), [folly@fb.com])
11 # We assume all revisions are backwards incompatible.
12 LT_VERSION=folly_version_str:0
13 AC_SUBST([LT_VERSION])
15 AC_CONFIG_SRCDIR([Likely.h])
16 AC_CONFIG_HEADERS([config.h])
17 AX_PREFIX_CONFIG_H([folly-config.h], [folly], [config.h])
18 AC_CONFIG_AUX_DIR([build-aux])
20 AM_INIT_AUTOMAKE([foreign dist-bzip2 nostdinc subdir-objects])
22 AC_CONFIG_MACRO_DIR([m4])
24 AX_CONFIG_FEATURE_DEFAULT_DISABLED
27 [supports deprecated associative containers (hash_map/hash_set)],
28 [HAVE_DEPRECATED_ASSOC],
29 [Define if you want to support deprecated associative containers])
36 # Checks for programs.
39 AC_CXX_COMPILE_STDCXX_0X
41 # Be sure to add any -std option to CXXFLAGS before we invoke any
42 # AC_COMPILE_IFELSE() or similar macros. Any such macros that are invoked
43 # before we update CXXFLAGS will not be run with the same options that we use
44 # during the real build.
46 if test "x$ac_cv_cxx_compile_cxx0x_cxx" = xyes; then
49 if test "x$ac_cv_cxx_compile_cxx0x_gxx" = xyes; then
53 CXXFLAGS="$STD $CXXFLAGS"
55 # Checks for libraries.
56 AC_CHECK_LIB([glog],[openlog],[],[AC_MSG_ERROR(
57 [Please install google-glog library])])
58 AC_CHECK_LIB([gflags],[getenv],[],[AC_MSG_ERROR(
59 [Please install google-gflags library])])
64 [AC_MSG_ERROR(["Error: libssl required"])])
66 # check for boost libs
67 AX_BOOST_BASE([1.20.0], [], [AC_MSG_ERROR(
68 [Please install boost >= 1.20.0 (thread, regex, and system)])])
74 # Checks for header files.
76 AC_CHECK_HEADERS([fcntl.h features.h inttypes.h limits.h stdint.h stdlib.h string.h sys/time.h unistd.h mutex.h malloc.h emmintrin.h byteswap.h bits/functexcept.h bits/c++config.h])
78 AC_CHECK_HEADER(double-conversion/double-conversion.h, [], [AC_MSG_ERROR(
79 [Couldn't find double-conversion.h, please download from \
80 http://code.google.com/p/double-conversion/])], [])
81 AC_CHECK_LIB([double-conversion],[ceil],[],[AC_MSG_ERROR(
82 [Please install double-conversion library])])
84 AC_CHECK_LIB([event], [event_set], [], [AC_MSG_ERROR([Unable to find libevent])])
86 AC_CHECK_LIB([jemalloc], [xallocx])
88 # Checks for typedefs, structures, and compiler characteristics.
95 AC_CHECK_TYPE([__int128],
96 [AC_DEFINE([HAVE_INT128_T], [1], [Define if __int128 exists])],
97 [AC_DEFINE([HAVE_INT128_T], [0], [Define if __int128 does not exist])])
98 AC_CHECK_TYPES([ptrdiff_t])
102 [folly_cv_prog_cc_ifunc],
105 #pragma GCC diagnostic error "-Wattributes"
106 extern "C" void (*test_ifunc(void))() { return 0; }
107 void func() __attribute__((ifunc("test_ifunc")));]
109 [folly_cv_prog_cc_ifunc=yes],
110 [folly_cv_prog_cc_ifunc=no])])
112 if test "$folly_cv_prog_cc_ifunc" = "yes"; then
113 AC_DEFINE([HAVE_IFUNC], [1], [Define to 1 if the compiler supports ifunc])
117 [for final and override support],
118 [folly_cv_c_final_override],
120 [AC_LANG_SOURCE[class C { virtual void f() final {} virtual void g() {} };
121 class D : public C { virtual void g() override {} };]],
122 [folly_cv_c_final_override=yes],
123 [folly_cv_c_final_override=no])])
125 if test "$folly_cv_c_final_override" = "yes"; then
127 override_val=override
134 [FINAL], [$final_val],
135 [Define to "final" if the compiler supports C++11 "final"])
137 [OVERRIDE], [$override_val],
138 [Define to "override" if the compiler supports C++11 "override"])
141 [for std::this_thread::sleep_for],
142 [folly_cv_func_this_thread_sleep_for],
147 void func() { std::this_thread::sleep_for(std::chrono::seconds(1)); }]],
148 [folly_cv_func_this_thread_sleep_for=yes],
149 [folly_cv_func_this_thread_sleep_for=no])])
151 if test "$folly_cv_func_this_thread_sleep_for" = yes; then
152 AC_DEFINE([HAVE_STD__THIS_THREAD__SLEEP_FOR], [1],
153 [Define to 1 if std::this_thread::sleep_for() is defined.])
157 [for constexpr strlen],
158 [folly_cv_func_constexpr_strlen],
162 static constexpr int val = strlen("foo");]],
163 [folly_cv_func_constexpr_strlen=yes],
164 [folly_cv_func_constexpr_strlen=no])])
166 if test "$folly_cv_func_constexpr_strlen" = yes; then
167 AC_DEFINE([HAVE_CONSTEXPR_STRLEN], [1],
168 [Define to 1 if strlen(3) is constexpr.])
173 [folly_cv_lib_libcpp],
176 #include <type_traits>
182 [folly_cv_lib_libcpp=yes],
183 [folly_cv_lib_libcpp=no])])
185 if test "$folly_cv_lib_libcpp" = yes; then
186 AC_DEFINE([USE_LIBCPP], [1], [Define to 1 if we're using libc++.])
190 [for usable std::is_trivially_copyable],
191 [folly_cv_decl_std_is_trivially_copyable],
194 #include <type_traits>
195 const bool val = std::is_trivially_copyable<bool>::value;]
197 [folly_cv_decl_std_is_trivially_copyable=yes],
198 [folly_cv_decl_std_is_trivially_copyable=no])])
200 if test "$folly_cv_decl_std_is_trivially_copyable" = yes; then
201 AC_DEFINE([HAVE_STD__IS_TRIVIALLY_COPYABLE], [1],
202 [Define to 1 if we have a usable std::is_trivially_copyable<T>
208 [folly_cv_decl_gflags_namespace],
211 #include <gflags/gflags.h>
212 void foo() { gflags::GetArgv(); }]
214 [folly_cv_decl_gflags_namespace=gflags],
217 #include <gflags/gflags.h>
218 void foo() { google::GetArgv(); }]
220 [folly_cv_decl_gflags_namespace=google],
221 [folly_cv_decl_gflags_namespace=error])])])
223 if test "$folly_cv_decl_gflags_namespace" = error; then
224 AC_MSG_ERROR([Cannot determine gflags namespace])
227 [GFLAGS_NAMESPACE], [$folly_cv_decl_gflags_namespace],
228 [Define to gflags namespace (usually "google" or "gflags")])
229 if test "$folly_cv_decl_gflags_namespace" != gflags; then
230 AC_DEFINE([UNUSUAL_GFLAGS_NAMESPACE], [1],
231 [Define to 1 if the gflags namespace is not "gflags"])
235 # Figure out if we support weak symbols. If not, we will link in some null
236 # stubs for functions that would otherwise be weak.
238 [for weak symbol support],
239 [folly_cv_prog_cc_weak_symbols],
242 extern "C" void configure_link_extern_weak_test() __attribute__((weak));
243 int main(int argc, char** argv) {
244 return configure_link_extern_weak_test == nullptr;
246 [folly_cv_prog_cc_weak_symbols="yes"],
247 [folly_cv_prog_cc_weak_symbols="no"])])
249 if test "$folly_cv_prog_cc_weak_symbols" = yes; then
250 AC_DEFINE([HAVE_WEAK_SYMBOLS], [1],
251 [Define to 1 if the linker supports weak symbols.])
254 AC_SEARCH_LIBS([cplus_demangle_v3_callback], [iberty_pic iberty])
255 if test "$ac_cv_search_cplus_demangle_v3_callback" != "no" ; then
256 AC_DEFINE([HAVE_CPLUS_DEMANGLE_V3_CALLBACK], [1],
257 [Define to 1 if we have cplus_demangle_v3_callback.])
260 # Check for clock_gettime(2). This is not in an AC_CHECK_FUNCS() because we
261 # want to link with librt if necessary.
262 AC_SEARCH_LIBS([clock_gettime], [rt],
264 [HAVE_CLOCK_GETTIME],
266 [Define to 1 if we support clock_gettime(2).]),
269 # Checks for library functions.
270 AC_CHECK_FUNCS([getdelim \
282 if test "$ac_cv_func_pthread_yield" = "no"; then
283 AC_CHECK_HEADERS([sched.h])
284 AC_CHECK_FUNCS([sched_yield])
287 AC_CHECK_HEADER([lz4.h], AC_CHECK_LIB([lz4], [LZ4_decompress_safe]))
288 AC_CHECK_HEADER([snappy.h], AC_CHECK_LIB([snappy], [main]))
289 AC_CHECK_HEADER([zlib.h], AC_CHECK_LIB([z], [main]))
290 AC_CHECK_HEADER([lzma.h], AC_CHECK_LIB([lzma], [main]))
292 # Include directory that contains "folly" so #include <folly/Foo.h> works
293 AM_CPPFLAGS='-I$(top_srcdir)/..'
294 AM_CPPFLAGS="$AM_CPPFLAGS $BOOST_CPPFLAGS"
295 AM_LDFLAGS="$AM_LDFLAGS $BOOST_THREAD_LIB $BOOST_FILESYSTEM_LIB"
296 AM_LDFLAGS="$AM_LDFLAGS $BOOST_SYSTEM_LIB $BOOST_REGEX_LIB -lpthread"
298 AC_SUBST([AM_CPPFLAGS])
299 AC_SUBST([AM_LDFLAGS])
301 AM_CONDITIONAL([HAVE_STD_THREAD], [test "$ac_cv_header_features" = "yes"])
302 AM_CONDITIONAL([HAVE_X86_64], [test "$build_cpu" = "x86_64"])
303 AM_CONDITIONAL([HAVE_LINUX], [test "$build_os" == "linux-gnu"])
304 AM_CONDITIONAL([HAVE_WEAK_SYMBOLS],
305 [test "$folly_cv_prog_cc_weak_symbols" = "yes"])
306 AM_CONDITIONAL([HAVE_BITS_FUNCTEXCEPT], [test "$ac_cv_header_bits_functexcept_h" = "yes"])
309 AC_CONFIG_FILES([Makefile
311 test/function_benchmark/Makefile])