There is an updated pull request by mobinmob against master on the void-packages repository https://github.com/mobinmob/void-packages ktorrent https://github.com/void-linux/void-packages/pull/27905 ktorrent and libktorrent update to 20.12.1. They build and work on x86_64. A patch file from https://github.com/void-linux/void-packages/pull/27905.patch is attached