https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82143 --- Comment #14 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > For future reference: -fdefault-real-8 was added by Steve in r97221. This is not the actual implementation, but the renaming of -i8, -r8, ... to -fdefault-*