https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84734
--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > On 6, ... If it is after r257972 for gcc7 and r257974 for gcc6, then it does not contradicts the fact that the errors are emitted for 6.4.0 or 7.3.0.