[Bug libstdc++/89855] Inconsistent global namespace overload sets from #include <cmath>

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89855

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I there is a related defect report against the c++ standard about this exact
issue.