--- libgo/go/net/dnsclient_unix.go.orig	2020-03-04 19:30:03.000000000 +1100
+++ libgo/go/net/dnsclient_unix.go	2020-09-08 16:00:47.150818000 +1000
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix bsdsunix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 // DNS client: see RFC 1035.
 // Has to be linked into package net for Dial.