-#!/bin/sh
-exec make all
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+set -e
+if [ ! -f make.bash ]; then
+ echo 'all.bash must be run from $GOROOT/src' 1>&2
+ exit 1
+fi
+. ./make.bash "$@" --no-banner
+bash run.bash --no-rebuild
+$GOTOOLDIR/dist banner # print build info