#! /bin/sh
# Copyright (C) 1999-2021 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 <https://www.gnu.org/licenses/>.

# Test to make sure that suffix rules chain.

required=c++
. test-init.sh

plan_ 10

cat >> configure.ac << 'END'
AC_PROG_CXX
AC_OUTPUT
END

cat > Makefile.am << 'END'
SUFFIXES = .zoo
.zoo.cc:
	sed 's/INTEGER/int/g' `test -f '$<' || echo $(srcdir)/`$< >$@
bin_PROGRAMS = foo
foo_SOURCES = foo.zoo
# This is required by "make distcheck".  The useless indirection is
# reequired to avoid false positives by the grepping checks below.
FOO = foo
CLEANFILES = $(FOO).cc
END

command_ok_ "aclocal" $ACLOCAL
command_ok_ "automake" $AUTOMAKE

# The foo.cc intermediate step is implicit, it's a mistake if
# Automake requires this file somewhere.  Also, Automake should
# not require the file 'foo.c' anywhere.
command_ok_ "intermediate files not mentioned" \
  not $FGREP foo.c Makefile.in
# However Automake must figure that foo.zoo is eventually
# transformed into foo.o, and use this latter file (to link foo).
command_ok_ "final object file figured out" \
  $FGREP 'foo.$(OBJEXT)' Makefile.in

command_ok_ "autoconf" $AUTOCONF
command_ok_ "configure" ./configure

# This is deliberately valid C++, but invalid C.
cat > foo.zoo <<'END'
using namespace std;
INTEGER main (void)
{
  return 0;
}
END

directive=''; make_can_chain_suffix_rules || directive=TODO

for target in all distcheck; do
  command_ok_ "make $target"  \
              -D "$directive" -r "suffix rules not chained" \
              $MAKE $target
done

# FIXME: should we check that intermediate file 'foo.cc' has
# been removed?  Or is this requiring too much from the make
# implementation?

# Intermediate files should not be distributed.
command_ok_ "make distdir" $MAKE distdir
command_ok_ "intermediate file not distributed" test ! -e $me-1.0/foo.cc

: