There is an updated pull request by tornaria against master on the void-packages repository

https://github.com/tornaria/void-packages primesieve
https://github.com/void-linux/void-packages/pull/49513

primecount: update to 7.11 / primesieve: update to 12.1.
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#### Testing the changes
- I tested the changes in this PR: **briefly**

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A patch file from https://github.com/void-linux/void-packages/pull/49513.patch is attached