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#! /bin/sh
# Copyright (C) 2008 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/>.
# Make sure remaking rules work when subdir Makefile.in has been removed.
. ./defs || Exit 1
set -e
cat > configure.in << 'END'
AC_INIT
AM_INIT_AUTOMAKE(nonesuch, nonesuch)
AC_OUTPUT(Makefile sub/Makefile)
END
cat > Makefile.am <<'END'
SUBDIRS = sub
END
mkdir sub
: > sub/Makefile.am
$ACLOCAL
$AUTOMAKE
$AUTOCONF
./configure
$MAKE
# Now, we are set up. Ensure that, for either missing Makefile.in,
# or updated Makefile.am, rebuild rules are run, and run exactly once
# only.
rm -f Makefile.in
$MAKE >stdout
cat stdout
test `grep -c " --run " stdout` -eq 1
rm -f sub/Makefile.in
$MAKE >stdout
cat stdout
test `grep -c " --run " stdout` -eq 1
$sleep # Let touched files appear newer.
touch Makefile.am
$MAKE >stdout
cat stdout
test `grep -c " --run " stdout` -eq 1
touch sub/Makefile.am
$MAKE >stdout
cat stdout
test `grep -c " --run " stdout` -eq 1
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