2 # Check environment variables for sane values while testing.
4 # Copyright (C) 2000-2013 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
53 if eval test \"\${$var+set}\" = set; then
54 echo "$0: the $var environment variable is set --" \
55 ' unset it and rerun this test' >&2
60 test "$envvar_check_fail" = 1 && exit 1