New comment by newbluemoon on void-packages repository

https://github.com/void-linux/void-packages/pull/15804#issuecomment-546669667

Comment:
The problem with sonic-visualiser is that it is a mixed build-style: gnu-configure runs qmake in the end so that in cross cases qmake isn’t set up properly. To work-around this I just copied the creation of the `qt.conf` file from the qmake build-style and made qmake use it.

The xlint error is because of creating the custom `qt.conf`. Everything else is fine now. Tested on x86_64, x86_64-musl, and armv7l-musl (RPi).

But I think there are some other templates which are mixed qmake build-styles. Would it make sense to create a qmake-cross-wrapper (but only when the build-style is not qmake) which sets up and uses a `qt.conf` file?