[Bug libstdc++/108222] windows 9x support for libstdc++ threads and probably other features like std::filesystem

[unlvsur at live dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108222

--- Comment #1 from cqwrteur <unlvsur at live dot com> ---
I think we also need flags like --with-default-win32-windows=0x0400 to tell GCC
we are building for windows 95