Make strtod respect the rounding mode (bug 14518)

[Joseph S. Myers]

On Thu, 30 Aug 2012, Richard Henderson wrote:

> While I *could* commit a patch like the following, I'd like an
> opinion on whether the existing defines could be trashed and the
> file re-imagined as something more friendly for native.  Given
> of course that at present there cannot be any users since the
> actual _FPU_G/SETCW macros do not exist.
> 
> Or whether the file should be trashed and I'll just implement
> bits/rounding-mode.h.  Which honestly seems like it'd be the
> most efficient for the use in question.

I have no views on what's right for the alpha port here.

-- 
Joseph S. Myers
joseph@codesourcery.com