There is an updated pull request by st3r4g against master on the void-packages repository

https://github.com/st3r4g/void-packages libglvnd-remove-devel-deps
https://github.com/void-linux/void-packages/pull/22008

libglvnd: remove excess devel deps, grep license
Tested building `glu` and `mesa`

A patch file from https://github.com/void-linux/void-packages/pull/22008.patch is attached