Re: [patches] Add support for --with-arch configure option

["Joseph S. Myers" <joseph@xxxxxxxxxxxxxxxx>]

On Fri, 15 Aug 2008, Andreas Krebbel wrote:

> Hello,
> 
> > I see nothing EGLIBC-specific about this; have you also submitted it for FSF
> > GLIBC?  I'd like to see Roland's comments on it, if any, as I think he has
> > the best understanding of the principles of how this configure support is
> > meant to be designed.  (For example, he might have a view on whether you
> > should keep the option as --with-cpu but make it map to -march on some
> > targets.)
> 
> Sure this might also be useful for glibc.  But for glibc I don't have an
> exploiter so I don't expect this to have a chance to get in.  The only
> exploiter on eglibc for now will be the S/390 DFP support.

x86 and x86_64 also use -march instead of -mcpu (as do some ports 
targets).  The question of whether there should be a separate configure 
option or whether the effect of --with-cpu should depend on the target is 
an important one to try to resolve with Roland so we don't diverge 
unnecessarily from FSF glibc.

-- 
Joseph S. Myers
joseph@xxxxxxxxxxxxxxxx