[RFC 0/2] Transparent multi-version symbol support

[Florian Weimer]

* Adhemerval Zanella:

> The only detail I am not sure is if SYMVER_NEEDS_ALIAS does yields any
> substantial gain (and it require some refactoring and code to handle it).
> What kind of improvement do you expect?

I think it's desirable not to pollute the symbol table if we can avoid
it because debuggers occasionally show the aliases instead of the main
symbol.

Thanks,
Florian