#! /bin/sh # Copyright (C) 2010-2022 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 . # Make sure a per-Makefile.am -Werror setting is not carried over # to another Makefile.am. . test-init.sh cat >>configure.ac <<\END AC_CONFIG_FILES([sub/Makefile]) AC_OUTPUT END mkdir sub cat >sub/Makefile.am <<\END AUTOMAKE_OPTIONS = -Werror END cat >Makefile.am <<\END VAR = foo VAR = bar END $ACLOCAL # The issue would not manifest with threaded execution. unset AUTOMAKE_JOBS AUTOMAKE_run -Wno-error grep 'VAR multiply defined' stderr AUTOMAKE_JOBS=2 export AUTOMAKE_JOBS AUTOMAKE_run -Wno-error grep 'VAR multiply defined' stderr :