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#! /bin/sh
# Copyright (C) 2003-2018 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 -j' used to fail with Autoconf < 2.58, because tools like
# autoconf and automake can try to update autom4te's cache in parallel.
#
# Note that failures might not be reproducible systematically as they
# depend on the time at which autoconf and automake update the cache
# via autom4te.
required=GNUmake
. test-init.sh
cat >configure.ac <<END
m4_include([version.m4])
AC_INIT([$me], [THE_VERSION])
AM_INIT_AUTOMAKE
AC_CONFIG_HEADER([config.h])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
END
echo 'm4_define([THE_VERSION], [2.718])' > version.m4
: > Makefile.am
$ACLOCAL
$AUTOCONF
$AUTOHEADER
$AUTOMAKE --add-missing
./configure --version | grep '2\.718'
./configure
$MAKE
$sleep
echo 'm4_define([THE_VERSION], [3.141])' > version.m4
$MAKE -j
./configure --version | grep '3\.141'
:
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