https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98363
--- Comment #5 from cqwrteur <unlvsur at live dot com> --- (In reply to Nathan Sidwell from comment #4) > FWIW I think it premature to start agressively filing these kinds of > defects. We haven't added the module testsuite yet. No problem. I will keep helping you. I use GCC heavily on both windows and linux and my library is built with full of C++20 features, including concepts, coroutines, ranges, etc. I think I can help a lot on supporting modules on Windows.