#!/bin/sh
# Copyright (C) 2009  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 that -Wportability turns on portability-recursive,
# likewise for -Wno-...

. ./defs || Exit 1

set -e

#
# First, try a setup where we have a `portability-recursive' warning,
# but no "simple" `portability' warning.
#

cat >Makefile.am <<'EOF'
x = 1
bla = $(foo$(x))
EOF

$ACLOCAL

# Enabling `portability' warnings should enable `portability-recursive'
# warnings.
AUTOMAKE_fails -Wnone -Wportability
grep 'recursive variable expansion' stderr
# `portability-recursive' warnings can be enabled by themselves.
AUTOMAKE_fails -Wnone -Wportability-recursive
grep 'recursive variable expansion' stderr

# Various ways to disable `portability-recursive'.
$AUTOMAKE -Wno-all
$AUTOMAKE -Wno-portability
$AUTOMAKE -Wall -Wno-portability-recursive

# `-Wno-portability-recursive' after `-Wportability' correctly disables
# `portability-recursive' warnings.
$AUTOMAKE -Wportability -Wno-portability-recursive

# `-Wno-portability' disables `portability-recursive' warnings; but
# a later `-Wportability-recursive' re-enables them.  This time, we
# use AUTOMAKE_OPTIONS to specify the warning levels.
echo 'AUTOMAKE_OPTIONS = -Wno-portability' >> Makefile.am
$AUTOMAKE
echo 'AUTOMAKE_OPTIONS += -Wportability-recursive' >> Makefile.am
AUTOMAKE_fails
grep 'recursive variable expansion' stderr

#
# Now try a setup where we have both a `portability' warning and
# a `portability-recursive' one.
#

cat >Makefile.am <<'EOF'
x = 1
bla = $(foo$(x))
noinst_PROGRAMS = foo
foo_CPPFLAGS = -Dwhatever
EOF

echo AC_PROG_CC >> configure.in

$ACLOCAL --force

# Can disable both `portability' and `portability-recursive' warnings.
$AUTOMAKE -Wno-portability

# Disabling `portability-recursive' warnings should not disable
# `portability' warnings.
AUTOMAKE_fails -Wportability -Wno-portability-recursive
grep AM_PROG_CC_C_O stderr
grep 'recursive variable expansion' stderr && Exit 1

# Enabling `portability-recursive' warnings should not enable
# all the `portability' warning.
AUTOMAKE_fails -Wno-portability -Wportability-recursive
grep AM_PROG_CC_C_O stderr && Exit 1
grep 'recursive variable expansion' stderr

: