[Bug libstdc++/126807] simd: Tests fail on Darwin since their introduction.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126807

--- Comment #2 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Matthias Kretz (Vir) from comment #1)
> Is there any way that I can reproduce this without having a MacOS machine? 
> cfarm only has aarch64 MacOS, right?

I don't know - the issue is not macOS, per se, but an implementation that is
probably non-glibc and has a non-const math_errhandling (but I don't know right
away if there is another readily available). You could probably fake the issue
by hacking in an override to math_errhandling (if it's a macro) that makes it
into a function.

> Your patch looks correct to me. Unless you want me to take over, feel free
> to 
> send the patch for review noting that I already reviewed it.

OK. I'll post this and we can go from there.