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autogen.sh: don't update helpers unless there is a newer version

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Updating the autoconf helpers unconditionally is very noisy and
probably the wrong thing to do anyway. Check the version numbers and
only update if the current machine has a newer version installed.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin (Intel) 2019-09-24 11:13:43 -07:00
parent f7dbdb2e13
commit 01a67a1ba4
1 changed files with 8 additions and 1 deletions
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9
autogen.sh
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@ -18,7 +18,14 @@ mkdir -p autoconf autoconf/helpers config
autolib="`"$AUTOMAKE" --print-libdir`"
if test ! x"$autolib" = x; then
for prg in install-sh compile config.guess config.sub; do
if test -f "$autolib"/"$prg"; then
# Update autoconf helpers if and only if newer ones are available
if test -f "$autolib"/"$prg" && \
( test -f "$autolib"/"$prg" && \
sed -n -r -e \
's/^(scriptver(|sion)|timestamp)=['\''"]?([^'\''"]+).*$/\3/p' \
"$autolib"/"$prg" autoconf/helpers/"$prg" | \
sort --check=quiet; test $? -ne 0 )
then
cp -f "$autolib"/"$prg" autoconf/helpers
fi
done