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

https://github.com/skmpz/void-packages calibre-5.9.0
https://github.com/void-linux/void-packages/pull/27850

calibre: update to 5.9.0.


A patch file from https://github.com/void-linux/void-packages/pull/27850.patch is attached