Comment 1 for bug 1427991

I've pushed branches for those that compile just fine without the private headers.

For ubuntu-settings-components and ubuntu-keyboard, is it correct that you're only using the private headers for tests and not anything that gets installed into packages?

That would explain why they are not picking up the flag of using private symbols. You can mark this Won't Fix if you can't get around using the private stuff in tests. And thank you for not using them in the main software!

But if you can find anything in eg. Qt 5.4 to get around your QWindowSystemInterface::registerTouchDevice usage, that would be nice. Or, convincing upstream to make it public. I also found https://bugreports.qt.io/browse/QTBUG-26647 at least.