$OpenBSD: patch-net_dns_address_sorter_posix_cc,v 1.3 2016/03/06 10:51:14 robert Exp $
--- net/dns/address_sorter_posix.cc.orig.port	Wed Feb 24 21:01:33 2016
+++ net/dns/address_sorter_posix.cc	Thu Mar  3 09:43:26 2016
@@ -12,6 +12,7 @@
 #include <ifaddrs.h>
 #include <net/if.h>
 #include <netinet/in_var.h>
+#include <netinet6/in6_var.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #endif
