There is a new pull request by paper42 against master on the void-packages repository

https://github.com/paper42/void-packages remove-gconfmm
https://github.com/void-linux/void-packages/pull/38864

gconfmm: remove package
unused, abandoned upstream, doesn't build

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#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/38864.patch is attached