[v3] libstdc++/12854

[Zack Weinberg]

Gabriel Dos Reis <gdr@integrable-solutions.net> writes:
> | Using -Weffc++ with libstdc++ without these patches is pretty much
> | impossible.
>
> The compiler should not be warning in system headers in the first
> place.  Something is going wrong there.

It's probably a case of the warning issues when the objectionable
construct is *used*, outside the system header?

zw