#! /bin/sh
# Copyright (C) 2011 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, see <http://www.gnu.org/licenses/>.

# Check that the use of automatic de-ANSI-fication feature is deprecated.
# That feature will be removed in the next major Automake release.

. ./defs || Exit 1

set -e

warn_rx='automatic de-ANSI-fication.*deprecated'

cat >> configure.in <<'END'
AC_PROG_CC
AM_C_PROTOTYPES
END

$ACLOCAL

$AUTOCONF -Wall -Werror -Wno-obsolete
$AUTOCONF -Wnone -Wobsolete -Werror 2>stderr && { cat stderr >&2; Exit 1; }
cat stderr >&2
grep "^configure\\.in:5:.* AM_C_PROTOTYPES:.*$warn_rx" stderr

sed '/AM_C_PROTOTYPES/d' configure.in > config.stub
diff configure.in config.stub && fatal_ "failed to edit configure.in"
rm -f configure.in

cat > Makefile.stub <<'END'
ANSI2KNR = :
U =
END

for opt in ansi2knr lib/ansi2knr; do
  # ansi2knr option in Makefile.am
  cp config.stub configure.in
  cp Makefile.stub Makefile.am
  echo "AUTOMAKE_OPTIONS = $opt" >> Makefile.am
  cat Makefile.am # For debugging.
  $AUTOMAKE -Wno-obsolete
  AUTOMAKE_fails
  grep "^Makefile\.am:3:.*$warn_rx" stderr
  AUTOMAKE_fails -Wnone -Wobsolete
  grep "^Makefile\.am:3:.*$warn_rx" stderr
  # ansi2knr option in configure.in
  cp Makefile.stub Makefile.am
  sed "s|^\\(AM_INIT_AUTOMAKE\\).*|\1([$opt])|" config.stub > configure.in
  cat configure.in # For debugging.
  $AUTOMAKE -Wno-obsolete
  AUTOMAKE_fails
  grep "^configure\.in:2:.*$warn_rx" stderr
  AUTOMAKE_fails -Wnone -Wobsolete
  grep "^configure\.in:2:.*$warn_rx" stderr
done

: