[cmake] Add _DARWIN_C_SOURCE

[simgrid.git] / buildtools / Cmake / Flags.cmake

diff --git a/buildtools/Cmake/Flags.cmake b/buildtools/Cmake/Flags.cmake
index e51d603..3fe0a43 100644 (file)
--- a/buildtools/Cmake/Flags.cmake
+++ b/buildtools/Cmake/Flags.cmake
@@ -126,7 +126,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${optCFLAGS}")
 
 # Try to make Mac a bit more complient to open source standards
 if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700 -D_DARWIN_C_SOURCE")
 endif()
 
 set(TESH_OPTION "")