scons: Define _DARWIN_C_SOURCE on Darwin builds.

diff --git a/SConstruct b/SConstruct
index f43c10c..455b471 100644 (file)
--- a/SConstruct
+++ b/SConstruct
@@ -110,6 +110,8 @@ if platform in ('posix', 'linux', 'freebsd', 'darwin'):
                'PTHREADS',
                'HAVE_POSIX_MEMALIGN',
        ])
+       if platform == 'darwin':
+               env.Append(CPPDEFINES = ['_DARWIN_C_SOURCE'])
        env.Append(CPPPATH = ['/usr/X11R6/include'])
        env.Append(LIBPATH = ['/usr/X11R6/lib'])
        env.Append(LIBS = [