--- a/util-src/time.c	Mon Dec 03 23:06:41 2018 +0000
+++ b/util-src/time.c	Tue Dec 04 12:11:15 2018 +0000
@@ -1,5 +1,5 @@
 #ifndef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 199309L
+#define _POSIX_C_SOURCE 200809L
 #endif
 
 #include <time.h>