LLVM 19 unable to build BPF target

[Alan-Jowett]

The eBPF for Windows project relies on LLVM to build BPF programs. As of LLVM 19 it appear as if LLVM no longer supports BPF on Windows. This is a serious regression that completely breaks our project.

Please restore the BPF target in the Windows builds.

[tstellar]

@zmodem Was there a change to the script for building the Windows releases between 18 and 19 ?

[zmodem]

Yes: #106059

See for example https://discourse.llvm.org/t/llvm-19-x-release-third-party-binaries/80374/54 for discussion.

I didn't realize BPF on Windows was a thing.