--- libgo/go/internal/poll/sock_cloexec.go.orig	2020-03-04 19:30:03.000000000 +1100
+++ libgo/go/internal/poll/sock_cloexec.go	2020-09-08 16:34:15.463734000 +1000
@@ -5,7 +5,7 @@
 // This file implements sysSocket and accept for platforms that
 // provide a fast path for setting SetNonblock and CloseOnExec.
 
-// +build dragonfly freebsd linux
+// +build bsdsunix dragonfly freebsd linux
 
 package poll