Mingw-w64-Clang

The llvm port of mingw-w64.

Now self contained in a unified alpine Docker script :)

The stack is as follows.

• [Compiler] : llvm clang clang++
• [Linker] : lld
• [C Runtime] : compiler-rt mingw-w64
• [C++ Runtime] : libc++ libc++abi
• [Exceptions] : libunwind

Work has and will continue to be upstreamed where possible

Todos

• libcxx - enable test suite testing on cross compile
• mingw-w64 - add support for aarch64 when devices become available
• wine - update alpine wine to 3.0 on release so x64 can test properly

Status

• llvm - works
• clang - works
• clang++ - works
• compiler-rt - works
• mingw-w64 - works
• libcxx - builds
• libcxxabi - works
• libunwind - works (needs support for seh but dwarf works and sjlj for i686)