Don't allow --enable-selftest with empty file
#8320
| Job | Run time |
|---|---|
| 1m 42s | |
| 3m 35s | |
| 3m 45s | |
| 9m 2s |
--enable-selftest with empty file
#8320
| Job | Run time |
|---|---|
| 1m 42s | |
| 3m 35s | |
| 3m 45s | |
| 9m 2s |