https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91548
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Sorry about that. I've been working on new C++20 features in the dwindling stage 1 time, and kept kicking this can down the stage3 road. But hopefully I'll get to this after posting my aggregate paren init patch, which should be Real Soon. Unfortunately, there's no way to turn off the const checking.