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-rwxr-xr-xautogen.sh9
1 files changed, 8 insertions, 1 deletions
diff --git a/autogen.sh b/autogen.sh
index e07324cd..5597c8a0 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -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