[Bug c++/111504] compare operator not defined for recursive data types on C++20

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111504

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fails for the same reason with clang (both with libstdc++ and libc++) ....

Are you sure this is valid C++ 20 code?