#!/bin/sh
# Script for fixing aclocal.m4 files produced by 'aclocal' from automake 1.10.
# Copyright (C) 2006, 2008 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 3 of the License, 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, see <https://www.gnu.org/licenses/>.

# Usage: fixaclocal aclocal [OPTIONS]

"$@"
result=$?
if test $result = 0 && test -f aclocal.m4; then
  # Remove the block of 4 lines starting with 'm4_if(m4_PACKAGE_VERSION'
  # and the block of 5 lines starting with 'm4_if(AC_AUTOCONF_VERSION'
  # (automake <= 1.10.1) or with 'm4_if(m4_defn([AC_AUTOCONF_VERSION])'
  # (automake >= 1.10.2).
  sed -e '/m4_if(m4_PACKAGE_VERSION/{N;N;N;d}' -e '/m4_if(AC_AUTOCONF_VERSION/{N;N;N;N;d}' -e '/m4_if(m4_defn(\[AC_AUTOCONF_VERSION\])/{N;N;N;N;d}' < aclocal.m4 > aclocal.m4.tmp
  if cmp aclocal.m4 aclocal.m4.tmp > /dev/null; then
    rm -f aclocal.m4.tmp
  else
    mv aclocal.m4.tmp aclocal.m4
  fi
else
  exit $result
fi