#!/bin/bash # # Copyright 2018 Google Inc. All rights reserved # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http:#www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. set -u mk="$@" if echo "${mk}" | grep -q "^make"; then # Make doesn't support final assignment echo "Makefile:3: *** cannot assign to readonly variable: FOO" else cat <<EOF > Makefile all: FOO +=$= bar FOO +=$= foo all: FOO +=$= baz all: EOF ${mk} 2>&1 && echo "Clean exit" fi