There is a new pull request by mobinmob against master on the void-packages repository

https://github.com/mobinmob/void-packages zeroinstall-fix
https://github.com/void-linux/void-packages/pull/21204

zeroinstall: use system ocaml compiler
https://github.com/void-linux/void-packages/pull/21039#issuecomment-617126986

A patch file from https://github.com/void-linux/void-packages/pull/21204.patch is attached