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#! /bin/sh
# Copyright (C) 2008-2021 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/>.
# Make sure remaking rules work when subdir Makefile.in has been removed.
. test-init.sh
cat >> configure.ac << 'END'
AC_CONFIG_FILES([sub/Makefile])
AC_OUTPUT
END
cat > Makefile.am <<'END'
SUBDIRS = sub
END
mkdir sub
: > sub/Makefile.am
$ACLOCAL
$AUTOMAKE
$AUTOCONF
./configure
$MAKE
do_check ()
{
run_make -O
test $(grep -c "/missing " stdout) -eq 1
}
# 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
do_check
rm -f sub/Makefile.in
do_check
$sleep # Let touched files appear newer.
touch Makefile.am
do_check
touch sub/Makefile.am
do_check
:
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