--- libgo/go/cmd/internal/objabi/head.go.orig	2020-03-04 19:30:03.000000000 +1100
+++ libgo/go/cmd/internal/objabi/head.go	2020-09-08 10:17:18.695408000 +1000
@@ -39,6 +39,7 @@
 	Hunknown HeadType = iota
 	Hdarwin
 	Hdragonfly
+	Hbsdsunix
 	Hfreebsd
 	Hlinux
 	Hnacl
@@ -55,6 +56,8 @@
 		*h = Hdarwin
 	case "dragonfly":
 		*h = Hdragonfly
+	case "bsdsunix":
+		*h = Hbsdsunix
 	case "freebsd":
 		*h = Hfreebsd
 	case "linux", "android":
@@ -83,6 +86,8 @@
 		return "darwin"
 	case Hdragonfly:
 		return "dragonfly"
+	case Hbsdsunix:
+		return "bsdsunix"
 	case Hfreebsd:
 		return "freebsd"
 	case Hlinux: