--- libgo/go/runtime/runtime_unix_test.go.orig	2020-03-04 19:30:03.000000000 +1100
+++ libgo/go/runtime/runtime_unix_test.go	2020-09-08 13:10:19.469944000 +1000
@@ -6,7 +6,7 @@
 // We need a fast system call to provoke the race,
 // and Close(-1) is nearly universally fast.
 
-// +build aix darwin dragonfly freebsd linux netbsd openbsd plan9
+// +build aix bsdsunix darwin dragonfly freebsd linux netbsd openbsd plan9
 
 package runtime_test