https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108680
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kargl at gcc dot gnu.org --- Comment #1 from kargl at gcc dot gnu.org --- I submitted a patch years ago to remove the -fdefault* options, because these options have all sorts of problem. The only compelling reason for these options is to allow a user to compile code **while porting from INTEGER(4) to INTEGER(8)**. That patch was rejected. -fdefault-integer-8 simply will not work with DTIO as it seems that there is no runtime library support.