[PATCH v3 6/8] float128: Add private _Float128 declarations for libm.

[Gabriel F. T. Gomes]

On Tue, 9 May 2017 23:04:13 +0000
Joseph Myers <joseph@codesourcery.com> wrote:

> On Tue, 9 May 2017, Gabriel F. T. Gomes wrote:
> >
> > +#define M_MLIT(c) c ## f128  
> 
> I'd expect this to cause trouble when building glibc with GCC 6; don't you 
> need to use __f128 to allow for that?

The macro M_MLIT, as opposed to M_LIT, is used to concatenate the suffix
to macros such as M_E and M_LOG2E.  In our case, we get M_Ef128,
M_LOG2Ef128, etc., which are defined in math/math.h and already take care of
the workarounds for old compilers (through __f128()).