$NetBSD: patch-ac,v 1.3 2006/07/17 20:51:06 joerg Exp $

--- mDNSPosix/mDNSUNP.c.orig	2006-07-17 20:46:34.000000000 +0000
+++ mDNSPosix/mDNSUNP.c
@@ -154,6 +154,9 @@ First checkin
 #endif
 
 #if defined(AF_INET6) && HAVE_IPV6 && !HAVE_LINUX
+#if defined(__FreeBSD__) || defined(__DragonFly__)
+#include <net/if_var.h>
+#endif
 #include <netinet6/in6_var.h>
 #endif
 
