There is an updated pull request by Clyybber against master on the void-packages repository

https://github.com/Clyybber/void-packages qjackctlsessionoption
https://github.com/void-linux/void-packages/pull/27828

qjackctl: Add build option for jack-session support


A patch file from https://github.com/void-linux/void-packages/pull/27828.patch is attached