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#! /bin/sh
# Install an aclocal-style M4 file. A script is needed to do this
# because we want to do serial-number checking; newer versions of
# macro files should always be preferred.
# Usage:
# acinstall file directory installprogram [install-args]...
file="$1"
dir="$2"
shift
shift
localserial="`grep '^# serial' $file | sed -e 's/^# serial //g'`"
if test -z "$localserial"; then
echo "acinstall: no serial number in $file" 1>&2
exit 1
fi
# Maybe if the installed file has no serial number we should just
# assume it is ancient.
instserial="`grep '^# serial ' $dir/$file | sed -e 's/^# serial //g'`"
if test -z "$instserial"; then
echo "acinstall: no serial number in $dir/$file" 1>&2
exit 1
fi
if test $localserial -lt $instserial; then
# Installed file is newer.
exit 0
fi
# Install the file.
$* $file $dir/$file
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