New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/24838#issuecomment-691430171

Comment:
This does not work, which is why I added `VBOX_WITH_VIRTIO =` in the first place.
The current release lacks some files required to build with virtio:
```
kmk: *** No rule to make target '/builddir/VirtualBox-6.1.14/src/VBox/Devices/VirtIO/VirtioCore.cpp', needed
 by '/builddir/VirtualBox-6.1.14/out/linux.amd64/release/obj/VBoxDD/VirtIO/VirtioCore.o'.  Stop.
```
BTW: it doesn't help to import these files from their repository. They don't compile.