[Patch / RFC ] Fix libstdc++/36742 on the 4_2-branch

[Paolo Carlini]

> Can you create an alias from the old symbol?  Otherwise this
> will likely break code linking to that symbol.

You mean, exporting also the old version? I'm not sure how I can do that. Also, I'm not sure to understand why you believe this will *likely* break code: actually, I'm not able, using the normal tools, to see the *type* of the exported symbol, that gives me hope...

> OTOH as 4.2 might not get another release we could decide to
> ignore this issue ...

Definitely. That was my first reaction, too. But in case we are reasonably sure the change is safe, we can as well have it...

Paolo.