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

https://github.com/Johnnynator/void-packages qt5-split
https://github.com/void-linux/void-packages/pull/20893

[WIP] qt5: split every submodule into it's own template
This should make it less likely to constantly blow up the build servers. Also make it less annoying when updating and something fails in do_install and everything needs to be cleaned up.

Broken stuff:

- [ ] `qt5-wayland` cross
- [ ] qmake cross as wonky as ever (e.g. `host_build` in `.pro` has no effect, and modules do never get found on target arch). Ironically this whole PR only works because of that :)
- [ ] some deps are not detected when cross building (e.g. libdrm, tries to include from host)

A patch file from https://github.com/void-linux/void-packages/pull/20893.patch is attached