https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97237
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- It surprises me -fpermissive ever accepted such bogosities. Also using -fpermissive with C++11 and later code is very weird, -fpermissive is about letting some very old unmaintained code compile, but using that together with C++11 features doesn't make sense.
