[SSSD] [sssd PR#5343][comment] autofs: distinguish between empty cache and offline state

[alexey-tikhonov]

URL: https://github.com/SSSD/sssd/pull/5343
Title: #5343: autofs: distinguish between empty cache and offline state

alexey-tikhonov commented:
"""
> Added.

It checks:
```
checking stdatomic.h usability... no
checking stdatomic.h presence... no
checking for stdatomic.h... no
```
but doesn't error out.

I would expect ./configure to stop here saying project won't build on this system?
"""

See the full comment at https://github.com/SSSD/sssd/pull/5343#issuecomment-734453092