RFA: Add a builtin define for when the floating point registers are not available

[Geoff Keating]

On 20/05/2005, at 11:10 AM, Aldy Hernandez wrote:

> Hi Nick.
>
>
>>   This one adds the definition of a C preprocessor builtin called
>>   __NO_FPRS__ if the floating point registers are not available.   
>> This
>>   is the default for the powerpc-eabispe port and can be triggered in
>>   other powerpc ports via the use of the -msoft-float or the
>>   -mfloat-gprs=no gcc command line switches.
>>
>
> I'll defer to either Geoff or David on this one, but...
>
> If we're going to add a builtin, it should be visible across the rest
> of the PPC variants (Linux, etc), not just eabi.
>
> Geoff, David?

Yes, I agree; it's annoying to discover that one port has some really  
useful macro, but not the one you're currently working on.


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