$OpenBSD: patch-proppatch_c,v 1.1 2016/10/20 20:25:19 jturner Exp $
--- proppatch.c.orig	Thu Oct 20 16:21:29 2016
+++ proppatch.c	Thu Oct 20 16:21:40 2016
@@ -20,6 +20,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
