There is an updated pull request by oreo639 against master on the void-packages repository

https://github.com/oreo639/void-packages libiberty
https://github.com/void-linux/void-packages/pull/41878

binutils: make libiberty-devel into subpkg
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#### Testing the changes
- I tested the changes in this PR: **YES**

Also require packages to explicitly depend on it.

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A patch file from https://github.com/void-linux/void-packages/pull/41878.patch is attached