[Bug libstdc++/78870] Support std::filesystem on Windows

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78870

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The Filesystem library now builds and mostly works on MinGW (for both the TS
and C++17 versions).

The library is not enabled by default for mingw targets, so you need to build
GCC with --enable-libstdcxx-filesystem-ts

If people can test and confirm it works fine for both mingw and mingw-w64 then
we can enable it by default.