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

https://github.com/ndowens/void-packages libwmf
https://github.com/void-linux/void-packages/pull/26498

libwmf: update to 0.2.12
Change source as original upstream is dead also adopt

A patch file from https://github.com/void-linux/void-packages/pull/26498.patch is attached