1#! /bin/sh 2 3# Install an aclocal-style M4 file. A script is needed to do this 4# because we want to do serial-number checking; newer versions of 5# macro files should always be preferred. 6 7# Usage: 8# acinstall file directory installprogram [install-args]... 9 10# Copyright 1996 Free Software Foundation, Inc. 11 12# This program is free software; you can redistribute it and/or modify 13# it under the terms of the GNU General Public License as published by 14# the Free Software Foundation; either version 2, or (at your option) 15# any later version. 16 17# This program is distributed in the hope that it will be useful, 18# but WITHOUT ANY WARRANTY; without even the implied warranty of 19# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20# GNU General Public License for more details. 21 22# You should have received a copy of the GNU General Public License 23# along with this program. If not, see <http://www.gnu.org/licenses/>. 24 25file="$1" 26dir="$2" 27shift 28shift 29 30localserial=`grep '^# serial ' $file | sed -e 's/^# serial \([0-9][0-9]*\).*$/\1/; q'` 31if test -z "$localserial"; then 32 echo "acinstall: no serial number in $file" 1>&2 33 exit 1 34fi 35 36# Maybe if the installed file has no serial number we should just 37# assume it is ancient. 38instserial=`grep '^# serial ' $dir/$file | sed -e 's/^# serial \([0-9][0-9]*\).*$/\1/; q'` 39if test -z "$instserial"; then 40 echo "acinstall: no serial number in $dir/$file" 1>&2 41 exit 1 42fi 43 44if test $localserial -lt $instserial; then 45 # Installed file is newer. 46 exit 0 47fi 48 49# Install the file. 50$* $file $dir/$file 51