--- libgo/go/time/zoneinfo_unix.go.orig	2020-03-04 19:30:03.000000000 +1100
+++ libgo/go/time/zoneinfo_unix.go	2020-09-08 10:20:09.022472000 +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,386 darwin,amd64 dragonfly freebsd linux,!android nacl netbsd openbsd solaris
+// +build aix bsdsunix darwin,386 darwin,amd64 dragonfly freebsd linux,!android nacl netbsd openbsd solaris
 
 // Parse "zoneinfo" time zone file.
 // This is a fairly standard file format used on OS X, Linux, BSD, Sun, and others.