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make-wrapper.sh: add an --unset argument

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`--set FOO ""` is not strictly equivalent to `--unset FOO`. In the former case
the environment variable still exists with an empty string as a value.
This commit is contained in:
zimbatm 2016-02-28 13:27:43 +00:00
parent ad47355786
commit 5e5494a852
1 changed files with 6 additions and 0 deletions
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6
pkgs/build-support/setup-hooks/make-wrapper.sh
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@ -19,6 +19,12 @@ makeWrapper() {
echo "export $varName=$value" >> $wrapper echo "export $varName=$value" >> $wrapper
fi fi
if test "$p" = "--unset"; then
varName=${params[$((n + 1))]}
n=$((n + 1))
echo "unset $varName" >> "$wrapper"
fi
if test "$p" = "--run"; then if test "$p" = "--run"; then
command=${params[$((n + 1))]} command=${params[$((n + 1))]}
n=$((n + 1)) n=$((n + 1))