[Bug libstdc++/91947] std::filesystem::file_size will return wrong value on 32bit platforms with large files support

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91947

--- Comment #19 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Fixed for gcc-9 as well, please let me know if you see any more build issues
> here.

Sure, thanks for the quick resolution!