https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124393
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Marco Meinardi from comment #2) > in the ubuntu/debian verions, it is enabled by default. I get the warning > without any additional compilation flag. Correct that change is NOT upstream and never has been. If a newer ubuntu/debian compiler does not warn, then the bug should be filed with them. Since upstream releases never enabled it by default this is not a bug a newer version does not enable it since it was never true.
