$OpenBSD: patch-net_dns_address_sorter_posix_cc,v 1.5 2021/11/16 11:28:47 robert Exp $
Index: net/dns/address_sorter_posix.cc
--- net/dns/address_sorter_posix.cc.orig
+++ net/dns/address_sorter_posix.cc
@@ -16,6 +16,7 @@
 #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
