(C++) mangling vector types

[Ulrich Drepper]

On 11/12/2009 08:35 AM, Jason Merrill wrote:
>> I'd favor this if you can emit aliases with the old names wherever this
>> is possible and currently done.
>
> I suppose if we unconditionally use the new mangling and emit a weak
> alias with the old mangling, old external references will resolve to
> somthing, so code that only uses one vector size will continue to work;

Really?  How'd you create code with the new compiler and older libraries 
which only provide definitions for the old names?

If I'm not missing anything then using a 2.1 ABI version makes sense 
since it is upward compatible, other than other ABI breakages.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖