[Bug libstdc++/91067] [9/10 Regression] Clang compiler can't link executable if std::filesystem::directory_iterator is encountered

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91067

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #4)
> This is a regression caused by moving the std::filesystem symbols into the
> libstdc++.so shared library. It links OK with GCC 8 (using -lstdc++fs to
> link to the static lib as needed for std::filesystem in GCC 8).

To be clear, I meant it links OK with clang when using the headers+libs from
GCC 8. (It also links OK when compiled with GCC 8, because it inlines
differently.)