http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60447
Tobias Burnus <burnus at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2014-03-08 CC| |burnus at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #7 from Tobias Burnus <burnus at gcc dot gnu.org> --- gcc/fortran/options.c's gfc_post_options contains: /* FIXME: return gfc_cpp_preprocess_only (); The return value of this function indicates whether the backend needs to be initialized. On -E, we don't need the backend. However, if we return 'true' here, an ICE occurs. Initializing the backend doesn't hurt much, hence, for now we can live with it as is. */ return false; * * * If one returns true, it indeed fails with a segfault. * * * For C, its LANG_HOOKS_INIT (= c_objc_common_init) has: if (c_common_init () == false) return false; which returns "false" for flag_preprocess_only. I think, we have to do something similar for gfortran's LANG_HOOKS_INIT (= gfc_init).