There is a new pull request by amak79 against master on the void-packages repository

https://github.com/amak79/void-packages libupnpp
https://github.com/void-linux/void-packages/pull/43572

libupnpp: update to 0.22.5
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#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/43572.patch is attached