CMake/FollySetup.cmake

   1 # folly-config.h is a generated file from autotools
   2 # We need to do the equivalent checks here and use
   3 # add_definitions as needed
   4 add_definitions(-DFOLLY_NO_CONFIG=1)
   5
   6 INCLUDE(CheckCXXSourceCompiles)
   7 CHECK_CXX_SOURCE_COMPILES("
   8 extern \"C\" void (*test_ifunc(void))() { return 0; }
   9 void func() __attribute__((ifunc(\"test_ifunc\")));
  10 " FOLLY_IFUNC)
  11 if (FOLLY_IFUNC)
  12         add_definitions("-DHAVE_IFUNC=1")
  13 endif()
  14
  15 set(CMAKE_REQUIRED_LIBRARIES rt)
  16 CHECK_CXX_SOURCE_COMPILES("#include <time.h>
  17 int main() {
  18   clock_gettime((clockid_t)0, NULL);
  19   return 0;
  20 }" HAVE_CLOCK_GETTIME)
  21
  22 if (HAVE_CLOCK_GETTIME)
  23         add_definitions("-DFOLLY_HAVE_CLOCK_GETTIME=1")
  24 endif()
  25 set(CMAKE_REQUIRED_LIBRARIES)
  26
  27 find_path(FEATURES_H_INCLUDE_DIR NAMES features.h)
  28 if (FEATURES_H_INCLUDE_DIR)
  29         include_directories("${FEATURES_H_INCLUDE_DIR}")
  30         add_definitions("-DFOLLY_HAVE_FEATURES_H=1")
  31 endif()