/usr/share/automake-1.10/acinstall is in automake1.10 1:1.10.3-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #! /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]...
# Copyright 1996 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
file="$1"
dir="$2"
shift
shift
localserial=`grep '^# serial ' $file | sed -e 's/^# serial \([0-9][0-9]*\).*$/\1/; q'`
if test -z "$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 \([0-9][0-9]*\).*$/\1/; q'`
if test -z "$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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