https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114891
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- So a C++23 library header (generator) is using a C++20 feature (is_pointer_interconvertible_base_of_v) ... Especially since GCC 14.1.0 will most likely be released with this header and 14.2.0 won't come out until Summer end (around most likely around the same time as clang 19). And GCC 15.1.0 won't come out until April/May 2025. Supporting older clang which does not have C++20 support for something which is C++23 (which itself won't fully be supported until GCC 15 at earliest).
