Hello, I found the most excellent llvm-mingw project by Martin Storsjo: https://github.com/mstorsjo/llvm-mingw/ It uses shell scripts to build all the components. I'm currently using it on FreeBSD 12 to cross build itself for Windows for i686 and amd64 (x86_64 to be exact). Is there any interest in llvm-mingw as a port? Regards, Russ