https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105863
--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> --- What still isn't committed is the C++ optimization support of #embed. And, we need to decide what to do with the macro expansion for #embed, the current implementation isn't conformant (but maybe WG14 will change it as a DR), neither is the clang implementation conformant.