diff options
| -rw-r--r-- | tests/envvar-check | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tests/envvar-check b/tests/envvar-check index 5784949d2..880eaccfc 100644 --- a/tests/envvar-check +++ b/tests/envvar-check @@ -1,4 +1,10 @@ -unset VERSION_CONTROL SIMPLE_BACKUP_SUFFIX +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 --" \ |