Don't force -msoft-float for powerpc --without-fp

[Carlos O'Donell]

On 09/17/2013 05:14 PM, Joseph S. Myers wrote:
> On Tue, 17 Sep 2013, Carlos O'Donell wrote:
> 
>> I am in agreement that this selection should happen based on the
>> compiler configuration ($CC).
> 
> More precisely, $CC $CFLAGS $CPPFLAGS, as used for ARM (although certainly 
> I recommend putting all architecture variant options in $CC).

Yes, I guess that's more precise. I wish we could just look at $CC,
but that might not always be practical given the support for putting
any flags in $CFLAGS.

Cheers,
Carlos.