New comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/issues/19090#issuecomment-914224432

Comment:
> Can you try again with the following patch?

For me the build on musl still fails
```
 ImportError: Error relocating /tmp/build/sage-9.4/local/lib/python3.9/site-packages/zmq/backend/cython/error.cpython-39-x86_64-linux-gnu.so: zmq_errno: symbol not found
  Building wheel for ipykernel (PEP 517): finished with status 'error'
  ERROR: Failed building wheel for ipykernel
```
but I'm not using the PR's on my laptop, only packaged ones, so that may be the cause.
(Either that, or newer musl I'm using.)