#! /bin/sh
# Copyright (C) 2002, 2003  Free Software Foundation, Inc.
#
# This file is part of GNU Automake.
#
# GNU Automake 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.
#
# GNU Automake 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 autoconf; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

# Make sure that we can enable or disable warnings on a per-file basis.

. ./defs || exit 1

set -e


cat >>configure.in <<END
AC_CONFIG_FILES([sub/Makefile])
AC_OUTPUT
END

mkdir sub

# These two Makefile contain the same errors, but have different
# warnings disabled.

cat >Makefile.am <<END
AUTOMAKE_OPTIONS = -Wno-obsolete
INCLUDES = -Ifoo
foo_SOURCES = unused
SUBDIRS = sub
END

cat >sub/Makefile.am <<END
AUTOMAKE_OPTIONS = -Wno-syntax
INCLUDES = -Ifoo
foo_SOURCES = unused
END

$ACLOCAL
$AUTOMAKE 2>stderr && exit 1
cat stderr
# The expected diagnostic is
#   Makefile.am:3: unused variable: `foo_SOURCES'
#   sub/Makefile.am:2: `INCLUDES' is the old name for `AM_CPPFLAGS'
grep '^Makefile.am:.*foo_SOURCES' stderr
grep '^sub/Makefile.am:.*INCLUDES' stderr
grep '^sub/Makefile.am:.*foo_SOURCES' stderr && exit 1
grep '^Makefile.am:.*INCLUDES' stderr && exit 1
# Only two lines of warnings.
test `wc -l < stderr` = 2

# On fast machines the autom4te.cache created during the above run of
# $AUTOMAKE is likely to have the same time stamp as the configure.in
# created below; thus causing traces for the old configure.in to be
# used.  We could do `$sleep', but it's faster to erase the
# directory.  (Erase autom4te*.cache, not autom4te.cache, because some
# bogus installations of Autoconf use a versioned cache.)
rm -rf autom4te*.cache

# If we add a global -Wnone, all warnings should disappear.
cat >configure.in <<END
AC_INIT([warnopts], [1.0])
AM_INIT_AUTOMAKE([-Wnone])
AC_CONFIG_FILES([Makefile sub/Makefile])
AC_OUTPUT
END
$ACLOCAL
$AUTOMAKE