--- libgo/go/syscall/exec_unix.go.orig	2020-03-04 19:30:03.000000000 +1100
+++ libgo/go/syscall/exec_unix.go	2020-09-08 16:10:03.102357000 +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
 
 // Fork, exec, wait, etc.
 
@@ -212,7 +212,7 @@
 		return 0, err
 	}
 
-	if (runtime.GOOS == "freebsd" || runtime.GOOS == "dragonfly") && len(argv[0]) > len(argv0) {
+	if (runtime.GOOS == "freebsd" || runtime.GOOS == "dragonfly" || runtime.GOOS == "bsdsunix") && len(argv[0]) > len(argv0) {
 		argvp[0] = argv0p
 	}