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

https://github.com/ericonr/void-packages dante
https://github.com/void-linux/void-packages/pull/28184

dante: fix runtime on musl.
musl implements the sched_{set,get}scheduler functions as stubs.
Unfortunately, dante fails if the functions are available but return an
error, which is always the case for musl. Force it to think setscheduler
isn't available (var appropriated from Alpine).

Also fix their m4 stuff to search for sched_setaffinity properly (needs
_GNU_SOURCE on musl). That functions is implemented completely by musl.

Fixes #28180

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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A patch file from https://github.com/void-linux/void-packages/pull/28184.patch is attached