Remove unused flag.

diff --git a/buildtools/Cmake/CompleteInFiles.cmake b/buildtools/Cmake/CompleteInFiles.cmake
index e63a6a7..bf6d3e9 100644 (file)
--- a/buildtools/Cmake/CompleteInFiles.cmake
+++ b/buildtools/Cmake/CompleteInFiles.cmake
@@ -405,7 +405,7 @@ set(makecontext_CPPFLAGS_2 "")
 if(HAVE_MAKECONTEXT OR WIN32)
        set(makecontext_CPPFLAGS "-DTEST_makecontext")
        if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-               set(makecontext_CPPFLAGS_2 "-DOSX")
+               set(makecontext_CPPFLAGS_2 "-D_XOPEN_SOURCE")
        endif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
        
     if(WIN32 AND __VISUALC__)