[PR PATCH] Fix compatibility issues with the timespec struct

[joan at profuzdigital.com]

> > In a somewhat related note - libsmbclient.h currently cannot be used with `--std=c99` because of the dependency on `timespec`.
> 
> Is that solved with your patch or isn't it? If not, I'd like to
> understand why struct timespec is in conflict with --std=c99. Does c99
> not enable timespec in time.h?

No, my patch does nothing to solve this. It was just a side note. And 
yes -
the timespec struct is not a part of the c99 standard. It's available in 
c11,
gnu99 (in time.h), and c++17 (in ctime)