[Bug c++/109625] [14 regression] 'error: use of built-in trait ‘__type_pack_element’ in function signature; use library traits instead' when building folly

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109625

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Arsen Arsenović from comment #1)
> do we want to match what clang does here?

No, this is an intentional choice.