| Sasha Smundak | ce812f5 | 2018-08-15 14:49:39 -0700 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright 2018 Google Inc. All rights reserved |
| 4 | # |
| 5 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | # you may not use this file except in compliance with the License. |
| 7 | # You may obtain a copy of the License at |
| 8 | # |
| 9 | # http:#www.apache.org/licenses/LICENSE-2.0 |
| 10 | # |
| 11 | # Unless required by applicable law or agreed to in writing, software |
| 12 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | # See the License for the specific language governing permissions and |
| 15 | # limitations under the License. |
| 16 | |
| 17 | set -u |
| 18 | |
| 19 | mk="$@" |
| 20 | |
| 21 | if echo "${mk}" | grep -q "^make"; then |
| 22 | # Make doesn't support final assignment |
| 23 | echo "Makefile:3: *** cannot assign to readonly variable: FOO" |
| 24 | else |
| 25 | cat <<EOF > Makefile |
| 26 | all: FOO :=$= bar |
| 27 | FOO +=$= foo |
| 28 | all: FOO +=$= baz |
| 29 | all: |
| 30 | EOF |
| 31 | |
| 32 | ${mk} 2>&1 && echo "Clean exit" |
| 33 | fi |