https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121615
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Oops, that lost the call to __complex_abs for the C99 case, it should be:
template<typename _Tp>
inline _Tp
__complex_abs(const complex<_Tp>& __z)
{ return hypot(__z.real(), __z.imag()); }
template<typename _Tp>
inline _Tp
abs(const complex<_Tp>& __z) { return __complex_abs(__z.__rep()); }
So that we only use hypot when we can't use cabs, cabsl, or cabsf.
