[Development] Qt 6 buildsystem support requirements

[Kevin Kofler]

Thiago Macieira wrote:
> Also note that QML files are usually cross-platform too and could be
> shared. Any non-cross-platform QML file should be selected by the source
> via QFileSelector. Plugins, however, are arch-dependent and should live in
> an arch-dependent dir. That would mean splitting the "qml" dir in two:
> 
> <prefix>/lib/qml
> <prefix>/share/qml
> 
> I don't see us spending the effort...

That would also help multilib GNU/Linux distributions though, because right 
now we have to treat all QML-only packages as arch-specific just because of 
the installation path. Having the QML files themselves in /usr/share would 
allow us to make those packages noarch.

        Kevin Kofler