There is an updated pull request by TheEgghead27 against master on the void-packages repository

https://github.com/TheEgghead27/void-packages jbig2enc
https://github.com/void-linux/void-packages/pull/48860

New package: jbig2enc-0.29
#### Testing the changes
- I tested the changes in this PR: **briefly**

#### New package
- This new package conforms to the [package requirements](https://github.com/void-linux/void-packages/blob/master/CONTRIBUTING.md#package-requirements): **YES**

jbig2enc upstream has been sparsely maintained for a few years, only commits have been bug fixes without a new release tag, with the most recent two patches being necessary for libleptonia linkage.

I personally use this package alongside `ocrmypdf` (via pipx), though `jbig2enc` might not offer much of value to most users.

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-glibc)
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - x86_64-musl
  - i686
  - aarch64 (cross)


A patch file from https://github.com/void-linux/void-packages/pull/48860.patch is attached