#! /bin/sh
# Copyright (C) 1999-2012 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/>.

# Test to make sure intermediate .h file is not generated nor removed
# if (AM_)?YFLAGS do not contain -d.  Requested by Jim Meyering.
# See also the related semantic test 'yacc-d-basic.test'.

. ./defs || exit 1

cat >> configure.ac << 'END'
AC_PROG_CC
AC_PROG_YACC
END

# Run it here once and for all, since we are not going to modify
# configure.ac anymore.
$ACLOCAL

cat > Makefile.am <<'END'
bin_PROGRAMS = zardoz
zardoz_SOURCES = zardoz.y
END

# Don't redefine several times the same variable.
cp Makefile.am Makefile.src

$AUTOMAKE -a
# If zardoz.h IS mentioned, fail.
$FGREP 'zardoz.h' Makefile.in && exit 1

cp Makefile.src Makefile.am
echo 'AM_YFLAGS = -d' >> Makefile.am
$AUTOMAKE
# If zardoz.h is NOT mentioned, fail.
$FGREP 'zardoz.h' Makefile.in

cp Makefile.src Makefile.am
echo 'AM_YFLAGS = ' >> Makefile.am
$AUTOMAKE
# If zardoz.h IS mentioned, fail.
$FGREP 'zardoz.h' Makefile.in && exit 1

cp Makefile.src Makefile.am
echo 'YFLAGS = -d' >> Makefile.am
# YFLAGS is a user variable.
AUTOMAKE_fails
grep 'YFLAGS.* user variable' stderr
grep 'AM_YFLAGS.* instead' stderr
$AUTOMAKE -Wno-gnu
# If zardoz.h is NOT mentioned, fail.
$FGREP 'zardoz.h' Makefile.in

cp Makefile.src Makefile.am
echo 'YFLAGS = ' >> Makefile.am
$AUTOMAKE -Wno-gnu
# If zardoz.h IS mentioned, fail.
$FGREP 'zardoz.h' Makefile.in && exit 1

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