[RFC] Backport -Wstrict-aliasing warnings for C++ to 4.1

[Richard Guenther]

On Wed, 7 Dec 2005, Jakub Jelinek wrote:

> On Wed, Dec 07, 2005 at 04:34:55PM +0100, Richard Guenther wrote:
> > 
> > Is it ok to backport the following two patches from mainline to
> > gcc 4.1?  All the libstdc++ changes regarding to the change have
> > already been backported to 4.1.
> 
> Even the
> 2005-11-23  Paolo Carlini  <pcarlini@suse.de>
> 
>         PR libstdc++/24975 (basic_string)
>         * include/bits/basic_string.h (_Rep::_S_empty_rep): Avoid
>         strict-aliasing warnings.
> 
> change?  I don't see it on gcc-4_1-branch...

Ah no - that's missing and we appearantly have that patched in our
distributions compiler together with the warning.  So - ok to backport
the warning bits together with this workaround?

Richard.