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

https://github.com/pullmoll/void-packages libucontext
https://github.com/void-linux/void-packages/pull/27254

libucontext: update to 0.13.1
Adds man pages and fixes for RISC-V V64 support w/ musl.

A patch file from https://github.com/void-linux/void-packages/pull/27254.patch is attached