https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98590
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> --- It is not really a penalization, the -std= is (supposed to be) added only during bootstraps for stage1, so if one builds a cross-compiler or non-bootstrapped compiler, it isn't added and nobody is penalized, if one bootstraps the compiler, the only penalization will be that stage1 could be slightly slower (it will be slow anyway, as it is built with -O0, isn't it).
