tests/envvar-check

if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi

$as_unset VERSION_CONTROL SIMPLE_BACKUP_SUFFIX

if test "${VERSION_CONTROL+set}" = set; then
  echo "$0: the VERSION_CONTROL envvar is set --" \
    ' unset it and rerun this test' >&2
  exit 1
fi

if test "${SIMPLE_BACKUP_SUFFIX+set}" = set; then
  echo "$0: the SIMPLE_BACKUP_SUFFIX envvar is set --" \
    ' unset it and rerun this test' >&2
    >&2
  exit 1
fi
Set/use $as_unset, for those shells (like Ultrix4's /bin/sh) that don't accept `unset'. 2001-03-17 22:12:03 +00:00			`if (FOO=FOO; unset FOO) >/dev/null 2>&1; then`
			`as_unset=unset`
			`else`
			`as_unset=false`
			`fi`

			`$as_unset VERSION_CONTROL SIMPLE_BACKUP_SUFFIX`
* empty log message * 2000-08-12 13:19:27 +00:00
			`if test "${VERSION_CONTROL+set}" = set; then`
			`echo "$0: the VERSION_CONTROL envvar is set --" \`
			`' unset it and rerun this test' >&2`
			`exit 1`
			`fi`

			`if test "${SIMPLE_BACKUP_SUFFIX+set}" = set; then`
			`echo "$0: the SIMPLE_BACKUP_SUFFIX envvar is set --" \`
			`' unset it and rerun this test' >&2`
			`>&2`
			`exit 1`
			`fi`