[PATCH, libstdc++]: Avoid the badname __alpha

[Paolo Carlini]

On 09/23/2012 01:30 PM, Uros Bizjak wrote:
> Approved by Paolo in the PR, committed to mainline SVN.
Thanks Uros!

By the way, I'm wondering if the front-ends couldn't help us about 
this?!? For sure there is the issue that the list of BADNAMES evolves 
over times, but otherwise I don't see why we couldn't have a specific 
warning - which we could enable while building the libraries - checking 
that no BADNAMES appear in the code.

Opinions?!?

Thanks,
Paolo.