math_errhandling getting undef'ed for -std=gnu11?

[Joseph Myers]

On Wed, 30 Jan 2019, Carlos O'Donell wrote:

> Joseph,
> 
> Do you remember ever seeing this issue?

No.  It looks like that #undef should have been in a fast-math-only 
section of bits/mathinline.h, as only relating to fast-math inlines (but 
then it wouldn't have served any purpose, because math/math.h avoided 
defining math_errhandling for fast-math, before commit 
3c7d03129498e7426855b5d4cdd5b7109ecc2172, and defines it to 0 for 
fast-math, since then.

-- 
Joseph S. Myers
joseph@codesourcery.com