--- src/config.h.orig	2006-07-24 04:03:43.000000000 +1000
+++ src/config.h	2012-06-11 02:36:45.000000000 +1000
@@ -58,6 +58,7 @@
 #else
 
 #define _POSIX_SOURCE
+#define _POSIX_C_SOURCE 200112L
 
 #endif