[Bug lto/48200] Implement function attribute for symbol versioning (.symver)

[hubicka at ucw dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48200

--- Comment #35 from Jan Hubicka <hubicka at ucw dot cz> ---
> Any progress on that issue?
> Just hit that issue trying to build NetworkManager
> 
> https://gitlab.freedesktop.org/NetworkManager/NetworkManager/issues/278

I am working on a patch for symver attribute, hope to have it done this
week.

Honza