AC_PROG_CC
AC_CXX_COMPILE_STDCXX_0X
+# Be sure to add any -std option to CXXFLAGS before we invoke any
+# AC_COMPILE_IFELSE() or similar macros. Any such macros that are invoked
+# before we update CXXFLAGS will not be run with the same options that we use
+# during the real build.
+STD=""
+if test "x$ac_cv_cxx_compile_cxx0x_cxx" = xyes; then
+ STD="-std=c++0x"
+fi
+if test "x$ac_cv_cxx_compile_cxx0x_gxx" = xyes; then
+ STD="-std=gnu++0x"
+fi
+
+CXXFLAGS="$STD $CXXFLAGS"
+
# Checks for libraries.
AC_CHECK_LIB([glog],[openlog],[],[AC_MSG_ERROR(
[Please install google-glog library])])
# Checks for header files.
AC_HEADER_STDC
-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])
+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])
-AC_CHECK_HEADER(double-conversion.h, [], [AC_MSG_ERROR(
+AC_CHECK_HEADER(double-conversion/double-conversion.h, [], [AC_MSG_ERROR(
[Couldn't find double-conversion.h, please download from \
http://code.google.com/p/double-conversion/])], [])
-AC_CHECK_LIB([double_conversion_pic],[ceil],[],[AC_MSG_ERROR(
+AC_CHECK_LIB([double-conversion],[ceil],[],[AC_MSG_ERROR(
[Please install double-conversion library])])
+AC_CHECK_LIB([event], [event_set], [], [AC_MSG_ERROR([Unable to find libevent])])
+
# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
[AC_LANG_SOURCE[class C { virtual void f() final {} virtual void g() {} };
class D : public C { virtual void g() override {} };]],
[AC_DEFINE([FINAL], [final],
- [Define to "final" if the compiler supports C++11 "final"]),
+ [Define to "final" if the compiler supports C++11 "final"])
AC_DEFINE([OVERRIDE], [override],
[Define to "override" if the compiler supports C++11 "override"])],
[AC_DEFINE([FINAL], [],
- [Define to "final" if the compiler supports C++11 "final"]),
+ [Define to "final" if the compiler supports C++11 "final"])
AC_DEFINE([OVERRIDE], [],
[Define to "override" if the compiler supports C++11 "override"])]
)
+AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE[
+ #include <thread>
+ #include <chrono>
+ void func() { std::this_thread::sleep_for(std::chrono::seconds(1)); }]],
+ [AC_DEFINE([HAVE_STD__THIS_THREAD__SLEEP_FOR], [1],
+ [Define to 1 if std::this_thread::sleep_for() is defined.])])
+
+AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE[
+ #include <cstring>
+ static constexpr int val = strlen("foo");]],
+ [AC_DEFINE([HAVE_CONSTEXPR_STRLEN], [1],
+ [Define to 1 if strlen(3) is constexpr.])])
+
+AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE[
+ #include <type_traits>
+ #if !_LIBCPP_VERSION
+ #error No libc++
+ #endif
+ void func() {}]
+ ],
+ [AC_DEFINE([USE_LIBCPP], [1], [Define to 1 if we're using libc++.])])
+
+AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE[
+ #include <type_traits>
+ const bool val = std::is_trivially_copyable<bool>::value;]
+ ],
+ [AC_DEFINE([HAVE_STD__IS_TRIVIALLY_COPYABLE], [1],
+ [Define to 1 if we have a usable std::is_trivially_copyable<T>
+ implementation.])])
+
+# Figure out if we support weak symbols. If not, we will link in some null
+# stubs for functions that would otherwise be weak.
+AC_LINK_IFELSE(
+ [AC_LANG_SOURCE[
+ extern "C" void configure_link_extern_weak_test() __attribute__((weak));
+ int main(int argc, char** argv) {
+ return configure_link_extern_weak_test == nullptr;
+ }]
+ ],
+ [
+ ac_have_weak_symbols="yes"
+ AC_DEFINE([HAVE_WEAK_SYMBOLS], [1],
+ [Define to 1 if the linker supports weak symbols.])])
+
+AC_SEARCH_LIBS([cplus_demangle_v3_callback], [iberty])
+if test "$ac_cv_search_cplus_demangle_v3_callback" != "no" ; then
+ AC_DEFINE([HAVE_CPLUS_DEMANGLE_V3_CALLBACK], [1],
+ [Define to 1 if we have cplus_demangle_v3_callback.])
+fi
+
+# Check for clock_gettime(2). This is not in an AC_CHECK_FUNCS() because we
+# want to link with librt if necessary.
+AC_SEARCH_LIBS([clock_gettime], [rt],
+ AC_DEFINE(
+ [HAVE_CLOCK_GETTIME],
+ [1],
+ [Define to 1 if we support clock_gettime(2).]),
+ [])
+
# Checks for library functions.
AC_CHECK_FUNCS([getdelim \
gettimeofday \
AC_CHECK_FUNCS([sched_yield])
fi
-CXX_FLAGS=""
-if test "$ac_cv_cxx_compile_cxx0x_cxx" = yes; then
- CXX_FLAGS="-std=c++0x"
-fi
-if test "$ac_cv_cxx_compile_cxx0x_gxx" = yes; then
- CXX_FLAGS="-std=gnu++0x"
-fi
-
-AC_SUBST(AM_CPPFLAGS, '-I../$(top_srcdir)'" "'-I$(top_srcdir)/io'" "'-I$(top_srcdir)/test'" $CXX_FLAGS $BOOST_CPPFLAGS")
+AC_SUBST(AM_CPPFLAGS, '-I../$(top_srcdir)'" "'-I$(top_srcdir)/io'" "'-I$(top_srcdir)/test'" $BOOST_CPPFLAGS")
AC_SUBST(AM_LDFLAGS, "$BOOST_LDFLAGS $BOOST_THREAD_LIB $BOOST_SYSTEM_LIB $BOOST_REGEX_LIB -lpthread")
AM_CONDITIONAL([HAVE_STD_THREAD], [test "$ac_cv_header_features" = "yes"])
AM_CONDITIONAL([HAVE_X86_64], [test "$build_cpu" = "x86_64"])
+AM_CONDITIONAL([HAVE_LINUX], [test "$build_os" == "linux-gnu"])
+AM_CONDITIONAL([HAVE_WEAK_SYMBOLS], [test "$ac_have_weak_symbols" = "yes"])
+AM_CONDITIONAL([HAVE_BITS_FUNCTEXCEPT], [test "$ac_cv_header_bits_functexcept" = "yes"])
# Output
AC_CONFIG_FILES([Makefile
projects / folly.git / blobdiff