#!/bin/sh
# Copyright (C) 2002-2022 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/>.
# Regression test for a bug reported by Ladislav Strojil.
# Using different extensions for the same language should not
# output the build rules several times.
. test-init.sh
cat >>configure.ac <<EOF
AC_PROG_CXX
EOF
cat >Makefile.am <<EOF
AUTOMAKE_OPTIONS = subdir-objects
bin_PROGRAMS = p q r
p_SOURCES = a.cc b.cpp c.cxx
q_SOURCES = sub/d.cc sub/e.cpp sub/f.cxx
r_SOURCES = g.cc h.cpp i.cxx
r_CXXFLAGS = -DFOO
EOF
$ACLOCAL
$AUTOMAKE
grep '\.o:' Makefile.in > rules
cat rules
# Here is an example of bogus output. The rules are output several
# times.
#| .cc.o:
#| d.o: sub/d.cc
#| e.o: sub/e.cpp
#| f.o: sub/f.cxx
#| r-g.o: g.cc
#| r-h.o: h.cpp
#| r-i.o: i.cxx
#| .cpp.o:
#| d.o: sub/d.cc
#| e.o: sub/e.cpp
#| f.o: sub/f.cxx
#| r-g.o: g.cc
#| r-h.o: h.cpp
#| r-i.o: i.cxx
#| .cxx.o:
#| #d.o: sub/d.cc
#| #e.o: sub/e.cpp
#| #f.o: sub/f.cxx
#| #r-g.o: g.cc
#| #r-h.o: h.cpp
#| #r-i.o: i.cxx
# Bail out if we find a duplicate.
$PERL -ne 'if (exists $a{$_}) { exit (1) } else { $a{$_} = 1 }' < rules
