Title: #378: [RFC] Use GNULIB's compiler warning code
@pbrezina, thanks for the offer but there's no need, sincerely. :-)
There's more important work to be done/reviewed at the moment and keeping the PR
opened didn't make sense.
In the future, in case someone has interest on having this merged, we can get back and
talk about it. For now, I'd just keep it closed and forget about this!
See the full comment at https://github.com/SSSD/sssd/pull/378#issuecomment-380721627