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

https://github.com/ahesford/void-packages cppzmq
https://github.com/void-linux/void-packages/pull/18669

cppzmq: update to 4.6.0.
Simple version bump.

cc: @Vaelatern 

A patch file from https://github.com/void-linux/void-packages/pull/18669.patch is attached