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configure: do not fork off grep subprocess while testing for whitespace 

grep is not necessary for the functionality.
This avoids an unnecessary fork.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Ganesh Ajjanagadde 2015-08-25 23:22:49 -04:00 committed by Michael Niedermayer
parent 47df871645
commit 6455e4fb5b
1 changed files with 3 additions and 2 deletions
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5
configure vendored
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@ -2974,8 +2974,9 @@ if test -f configure; then
source_path=.
else
source_path=$(cd $(dirname "$0"); pwd)
echo "$source_path" | grep -q '[[:blank:]]' &&
die "Out of tree builds are impossible with whitespace in source path."
case "$source_path" in
*[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
esac
test -e "$source_path/config.h" &&
die "Out of tree builds are impossible with config.h in source dir."
fi