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

https://github.com/tornaria/void-packages flintlib
https://github.com/void-linux/void-packages/pull/33274

flintlib: update to 2.8.1.
Also: build without ntl when cross-compiling, since ntl is nocross.

A patch file from https://github.com/void-linux/void-packages/pull/33274.patch is attached