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tweak to prepend_var

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This commit is contained in:
John Cupitt 2010-10-04 11:03:57 +00:00
parent 8ef0b344d6
commit 569fd3bd5c
1 changed files with 2 additions and 3 deletions
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5
tools/scripts/vips-7.23
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@ -24,11 +24,10 @@ fi
# can cause security problems # can cause security problems
function prepend_var () { function prepend_var () {
# we have to use eval to do double indirection, I think # we have to use eval to do double indirection, I think
eval value=x"\$$1" eval value="\$$1"
if [ $value = x ]; then if [ "x$value" = x ]; then
export $1=$2 export $1=$2
else else
eval value="\$$1"
export $1=$2:$value export $1=$2:$value
fi fi
} }