[Bug fortran/113152] Fortran 2023 half-cycle trigonometric functions

[burnus at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113152

--- Comment #20 from Tobias Burnus <burnus at gcc dot gnu.org> ---
And for the condition, I think the proper way is to write:

#if MPFR_VERSION >= MPFR_VERSION_NUM(4,2,0)
  ... = mpfr_sinpi ( ... )
#else
  fallback
#endif