https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66605
--- Comment #8 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > If so, then the ICE was not caused by my diagnostic changes, it just exposes a > problem that has been latent or introduced later. Thus, I'm not planning to > investigate further. Well, I think that is caused by your diagnostic changes, but is due to a conflicting definition of -Wunused-parameter in C* and gfortran which now share the same code (?). I am not sure if it is too late or not to change the name of the option in one of the front end. If it is too late, is it possible for the fortran FE to rename internally the option before passing it to the ME?