Add a clang (not clang-cl or even maybe gcc) option for build this

[trcrsired]

I have this windows msvc sysroot project

https://github.com/trcrsired/windows-msvc-sysroot/tree/main

I've just seen you added CMakeLists for msvc only. Can you provide an option for using this sysroot? Thank you

[trcrsired]

https://github.com/trcrsired/llvm-releases/releases

Here is the compiler you can use.

[trcrsired]

llvm/llvm-project#96417

I am trying to add --sysroot to clang itself

[huangqinjin]

I have this windows msvc sysroot project

https://github.com/trcrsired/windows-msvc-sysroot/tree/main

I've just seen you added CMakeLists for msvc only. Can you provide an option for using this sysroot? Thank you

Unfortunately that doesn't include necessary headers for building UCRT. Hope the proposed sysroot layout be widely adopted by the community, at that time I might try to support it.