--- a/util-src/pposix.c Sat Sep 08 11:51:52 2018 +0200
+++ b/util-src/pposix.c Sat Sep 08 11:52:44 2018 +0200
@@ -26,8 +26,10 @@
#endif
#endif
#if defined(__APPLE__)
+#ifndef _DARWIN_C_SOURCE
#define _DARWIN_C_SOURCE
#endif
+#endif
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif