[patch,target] Fix ppc-darwin issue with long double intrinsics (PR25477)

[Mike Stump]

On Feb 23, 2008, at 2:57 AM, FX Coudert wrote:
>  1. the target part, in gcc/config/darwin* and gcc/config/rs6000,  
> that takes care of setting correct assembler names for the builtins,  
> if needed

> The patch was bootstrapped on powerpc-apple-darwin9.2.0 with C and  
> Fortran, and regtested with both -m32 and -m64 for these same  
> languages. OK for trunk?

Clean beautiful code, hardly needs a review in my book.  :-)  Ok.

I did notice that:

   nanl
   strtold

are missing.  In addition, there are some lessor functions like err,  
errc, errx, strtold_l, swprintf, vfwscanf missing.  I assume this is  
due to no builtins for them or Fortran not using them.  If Ada or  
other non-C languages might, might make sense to add them too.

Thanks.