New comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/23546#issuecomment-657738441

Comment:
After a closer look at `python*-PyQt5-webengine` and a comment from @Johnnynator, I realized that the file-based configuration mechanism for `python*-PyQt5-webengine` is broken and cross builds are simply not possible. This masqueraded as an `aarch64` problem because those are the only architectures CI and the builders cross-compile that wasn't already broken for other reasons. I don't think this is worth fixing at least until PyQt5 5.15 can be packaged (which brings its own challenges), so I'm marking `nocross` for now.

To allow an up-to-date `qutebrowser` on those architectures where `python*-PyQt5-webengine` is no longer available, I've disabled the `webengine` default build option for cross builds.

cc: @Chocimier