https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94694
--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to rguent...@suse.de from comment #16) > Maybe they can be implemented like > > long double _gfortran_xyz (long double x) > { > __sorry_fortran_intrinsic_xyz_is_not_available_because_cosl_is_not (); > } > > instead of simply not providing them. Coordination between the FE > and (the various multilibs of) libgfortran and emitting diagnostics > from the FE would of course be even better. libgfortran has runtime_error or internal_error and other functions that can deliver messages to the user, sure.