$OpenBSD: patch-mdnsd_mdnsd_h,v 1.1 2013/11/26 08:53:24 jca Exp $
--- mdnsd/mdnsd.h.orig	Mon Nov 25 23:30:58 2013
+++ mdnsd/mdnsd.h	Mon Nov 25 23:30:10 2013
@@ -19,6 +19,7 @@
 
 #include <sys/param.h>
 #include <sys/socket.h>
+#include <sys/tree.h>
 #include <sys/types.h>
 #include <net/if_arp.h>
 #include <net/if.h>
