echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
 
#! /bin/sh
# Common wrapper for a few potentially missing GNU programs.
scriptversion=2013-10-28.13; # UTC
# Copyright (C) 1996-2014 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# 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, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
  echo 1>&2 "Try '$0 --help' for more information"
  exit 1
fi
case $1 in
  --is-lightweight)
    # Used by our autoconf macros to check whether the available missing
    # script is modern enough.
    exit 0
    ;;
  --run)
    # Back-compat with the calling convention used by older automake.
    shift
    ;;
  -h|--h|--he|--hel|--help)
    echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
to PROGRAM being missing or too old.