There's a closed pull request on the void-packages repository

New package: intel-compute-runtime-20.21.16886
https://github.com/void-linux/void-packages/pull/21855

Description:
Closes #11364

Resumed the work I did some time ago, mainly updated the templates to use `llvm10`. Opening this as a draft for now because I remember musl requiring to be patched (I gave up back then), any help is welcome.

@ericonr