#! /bin/sh
# Copyright (C) 2002, 2003, 2010, 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/>.

# Test to make sure Automake supports multiple derivations for the
# same suffix.
# From PR/37.

required=libtoolize
. ./defs || Exit 1

cat >>configure.in <<'END'
AM_PROG_AR
AM_PROG_LIBTOOL
AC_OUTPUT
END

cat >Makefile.am << 'END'
# $(LINK) is not defined automatically by Automake, since the *_SOURCES
# variables don't contain any known extension (.c, .cc, .f ...),
# So we need this hack.
LINK = :

bin_PROGRAMS = foo
lib_LTLIBRARIES = libfoo.la

foo_SOURCES = foo.x_
libfoo_la_SOURCES = bar.x_

# The elaborate cp commands below account for VPATH issues on
# weaker make implementations (e.g. IRIX 6.5).
.x_.y_:
	cp `test -f '$<' || echo $(srcdir)/`$< $@
.y_.o:
	cp `test -f '$<' || echo $(srcdir)/`$< $@
.y_.z_:
	cp `test -f '$<' || echo $(srcdir)/`$< $@
.z_.lo:
	cp `test -f '$<' || echo $(srcdir)/`$< $@

# Some make implementations don't remove intermediate files
# automatically, thus causing "make distcheck" to fail if
# this is not added.
MOSTLYCLEANFILES = *.y_ *.z_

.PHONY: test0 test1 test2
test0:
	echo $(foo_OBJECTS) | grep '^foo\.foo$$'
	echo $(libfoo_la_OBJECTS) | grep '^bar\.lo$$'
test1:
	echo $(foo_OBJECTS) | grep '^foo\.$(OBJEXT)$$'
	echo $(libfoo_la_OBJECTS) | grep '^bar\.lo$$'
test2: $(foo_OBJECTS) $(libfoo_la_OBJECTS)
	test -f foo.$(OBJEXT)
	test -f bar.lo
check-local: test1 test2
END

echo 'int main(void) { return 0; }' > foo.x_
echo 'int bar(void) { return 0; }' > bar.x_

libtoolize
$ACLOCAL
$AUTOCONF
$AUTOMAKE -a

./configure

OBJEXT=foo $MAKE -e test0
$MAKE test1
make_can_chain_suffix_rules || skip_ "make doesn't chain suffix rules"
$MAKE test2
$MAKE all
$MAKE distcheck

: