#! /bin/sh
# Copyright (C) 2003, 2004, 2005  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 that aclocal.m4's dependencies are honored
# in sub-directories.

# This test assumes that the `make' utility is able to start
# over and reload Makefiles which have been remade (a non-POSIX feature).
required='GNUmake'
. ./defs || Exit 1

set -e

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

cat > Makefile.am << 'END'
SUBDIRS = sub
ACLOCAL_AMFLAGS = -I m4
END

mkdir sub
: > sub/Makefile.am

mkdir m4
echo 'AC_DEFUN([AM_TEST], [echo $@])' > m4/moredefs.m4

$ACLOCAL -I m4
$AUTOCONF
$AUTOMAKE --copy --add-missing
./configure
$MAKE

# Update an aclocal.m4 dependency, then make sure all Makefiles are
# updated, even from a sub-directory.  Check that AU_ALIAS is
# recognized. Change the definition of AM_TEST to check that its new
# definition is used.
$sleep # Modified configure dependencies must be newer than config.status.
echo 'AU_ALIAS([AM_TEST], [AC_SUBST])' > m4/moredefs.m4
cd sub
$MAKE
cd ..
grep GREPME Makefile
grep GREPME sub/Makefile

# Make sure configure dependencies are distributed.
$MAKE distdir
test -f $me-1.0/m4/moredefs.m4

# Change the definition of AM_TEST to check that its new definition is
# used.  Check that AC_DEFUN_ONCE is caught.
$sleep # Modified configure dependencies must be newer than config.status.
echo 'AC_DEFUN_ONCE([AM_TEST], [AC_SUBST(__$1__)])' > m4/moredefs.m4
$MAKE
grep 'm4/moredefs\.m4' aclocal.m4
grep '__GREPME__' configure

: