[PATCH] ldbl-128: Refactor modfl snan handling

[Paul E. Murphy]

On 08/08/2016 10:20 AM, Joseph Myers wrote:
> On Mon, 8 Aug 2016, Paul E. Murphy wrote:
> 
>> This causes a test failure on float128/ppc64le
>> as the multiplication is optimized away.  This
>> updates it to use conversions similar to other
>> files.
> 
> This patch is not relative to current glibc.  You'll also need to explain 
> why the
> 
> # These files quiet sNaNs in a way that is optimized away without
> # -fsignaling-nans.
> CFLAGS-s_modf.c += -fsignaling-nans
> CFLAGS-s_modff.c += -fsignaling-nans
> CFLAGS-s_modfl.c += -fsignaling-nans
> 
> in math/Makefile isn't working, as it is for all the similar 
> implementations and other architectures.
> 

And, I missed that little bit of makefile.  Thank you for
pointing it out.  I'll drop the patch for now.


Is there a practical, reusable mechanism to apply a
set of CFLAGS to a list of objects derived from a make
variable without using eval?  Florian raised this issue
earlier and received no feedback.

Likewise, the same question applies to my proposed
patches to refactor the _Complex wrappers.