$OpenBSD: patch-src_current_libbif_c,v 1.2 2015/10/31 11:06:37 benoit Exp $
--- src/current/libbif.c.orig	Tue Oct 20 16:12:13 2015
+++ src/current/libbif.c	Sat Oct 31 11:51:45 2015
@@ -27,7 +27,7 @@
 #include <string.h>
 #endif
 
-#if defined(linux) || defined(__DragonFly__) || defined(IOZ_macosx) || defined(__NetBSD__)
+#if defined(linux) || defined(__DragonFly__) || defined(IOZ_macosx) || defined(__NetBSD__) || defined(__OpenBSD__)
 #include <unistd.h>
 #include <stdlib.h>
 #endif
