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#! /bin/sh
# Copyright (C) 2002, 2003  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 3, 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 the += diagnostics.

. ./defs || Exit 1

set -e

cat >>configure.in <<EOF
AM_CONDITIONAL(COND1, true)
AM_CONDITIONAL(COND2, true)
AM_CONDITIONAL(COND3, true)
EOF

cat > Makefile.am << 'END'
if COND1
  C = c
if COND2
    A = a
    B = aa
    C += cc
else
    A = b
    B = bb
endif
  A += c
else
  A = d
endif
A += e

if COND3
  A += f
  B = cc
endif
B += dd
END

$ACLOCAL
AUTOMAKE_fails

# We expect the following diagnostic:
#
# Makefile.am:19: Cannot apply `+=' because `B' is not defined in
# Makefile.am:19: the following conditions:
# Makefile.am:19:   !COND1 and !COND3
# Makefile.am:19: Either define `B' in these conditions, or use
# Makefile.am:19: `+=' in the same conditions as the definitions.
#
# It would be nice if Automake could print only COND3_FALSE and
# COND1_FALSE (merging the last two conditions), so we'll support
# this case in the check too.

grep ':   !COND1 and !COND3$' stderr
# Make sure there is exactly one missing condition.
test `grep ':  ' stderr | wc -l` = 1