New comment by daniel-eys on void-packages repository

https://github.com/void-linux/void-packages/issues/25015#issuecomment-696757178

Comment:
Void has a convenient tool called `xlocate` from the `xtools` package, which can help you locate files.
Like so:
```
xlocate /usr/include/jack
xlocate /usr/include/lv2
```
So the packages you are missing are `jack-devel` and `lv2`.