#! /bin/sh
# Copyright (C) 1999, 2001, 2002, 2003, 2010 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 for another `+=' problem.  Report from Brian Jones.

. ./defs || Exit 1

set -e

cat >> configure.in << 'END'
AM_CONDITIONAL([CHECK], [true])
END

cat > Makefile.am << 'END'
if CHECK
INCLUDES = abc
endif
INCLUDES += def
END

$ACLOCAL
AUTOMAKE_fails

# We expect the following diagnostic:
#
# Makefile.am:4: Cannot apply `+=' because `INCLUDES' is not defined in
# Makefile.am:4: the following conditions:
# Makefile.am:4:   !CHECK
# Makefile.am:4: Either define `INCLUDES' in these conditions, or use
# Makefile.am:4: `+=' in the same conditions as the definitions.

# Is !CHECK mentioned?
grep ':.*!CHECK$' stderr
# Is there only one missing condition?
test `grep ':  ' stderr | wc -l` = 1

# By the way, Automake should suggest using AM_CPPFLAGS,
# because INCLUDES is an obsolete name.
grep AM_CPPFLAGS stderr

# A way to suppress the obsolete warning is to use
# -Wno-obsolete:
echo 'AUTOMAKE_OPTIONS = -Wno-obsolete' >> Makefile.am
AUTOMAKE_fails
grep AM_CPPFLAGS stderr && Exit 1
# !CHECK should still be mentioned.
grep ':.*!CHECK$' stderr

: