[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:
"""
> BTW RHEL7 and CentOS apparently does not have stdatomic.h (gcc 4.8 bug resolved in 4.9) so if we choose to use this we need to stop running prci against rhel7/centos7. I'm fine with that.

Perhaps we could add ./configure check for this header to error out gracefully.

"""

See the full comment at https://github.com/SSSD/sssd/pull/5343#issuecomment-733870160