zig windres

[Akuli]

It would be really nice if zig exposed zig windres in addition to zig cc. This was previously mentioned in #7917 (comment)

For context, I have now spent a couple days trying to get a very small C program to compile on Windows, and I have ran into all kinds of weird problems. It would be awesome to just download a small self-contained thing and use it.

[jagt]

I took a look at zig ar integration. It basically integrates llvm llvm-ar.cpp as src/zig_llvm-ar.cpp with a few changes.

When it comes to windress which is llvm-rc tool in llvm code base. It involves multiple files and tablegen.

The options I can think of:

1. Integrate all files under llvm-rc into zig/src. It still need tablegen for building, so we'll choose between integrate tablegen or integrate a preprocessed code copy.
2. Same as above but put everything under zig/deps.

I'm not sure how zig_llvm-ar.cpp is upgraded when updating to newer LLVM releases. We'll need to do the same thing to windres.

[andrewrk]

This must be implemented in Zig rather than by adding an additional dependency on LLVM/Clang.