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

https://github.com/balejk/void-packages mtxclient
https://github.com/void-linux/void-packages/pull/37464

mtxclient: rebuild with json-c++ 3.10.5
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Closes #37442.

A patch file from https://github.com/void-linux/void-packages/pull/37464.patch is attached