> I mean it is some kind of cross compiler. Yes. Rustc is a cross compiler powered by LLVM.
> ...is it possible to build Rust compiler itself by the cross-compiler? Theoretically yes. Actually once a GitHub user @Ookiineko succeeded before, but now the account has been deleted. I think the largest blocker is LLVM itself. The latest version of LLVM provided by cygwin is 8.0, and 11.0 by MSYS2, while rustc needs LLVM 17.0 at least. @Ookiineko added some patches to LLVM to make it work, but they were not committed to upstream, but I haven't understand all of them yet. -- Yuyi Wang -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
