[Bug libstdc++/107886] Problem witch std::latch, std::binary_semaphores in C++20

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107886

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Please read https://gcc.gnu.org/bugs/ and provide the requested info!

It asks for several things which are still missing and should not be difficult,
e.g. the output of `gcc -v`

It works fine for me with x86_64-w64-mingw32 so this seems to be a problem with
the mingw config, not with upstream GCC. Probably you don't have a threading
library that GCC can use, such as pthreads-win32. But we can't tell how your
GCC has been configured because you won't provide the requested information.