[clang] [clang] Support --sysroot= for ${arch}-windows-msvc targets (PR #96417)

[via cfe-commits]

Andarwinux wrote:

Hi,

I also hope this PR can be merged, but considering the other comments, I don’t think this is the right direction.

I think what we might want is not "Support --sysroot= for ${arch}-windows-msvc targets," but a new target, maybe ${arch}-windows-msvcllvm, a.k.a. "MinCW"? This target is supposed to be fully ABI-compatible with MSVC, while it provides the GNU Clang user interface and directory layout. On top of fully ABI-compatible with MSVC, it is supposed to optionally supplement and replace the MSVC CRT/STL with high-quality LLVM runtimes.

I believe Chromium might be interested in this, which would greatly simplify their build system.



https://github.com/llvm/llvm-project/pull/96417