lomiri-weather-app successfully cross builds a broken package. Since it
trips lintian, we track this as a cross build failure. The detected qml
plugin installation location ends up being for the build architecture.
The root cause is that a bare qmake is used for discover this location
as opposed to a triplet-prefixed one matching the host architecture.
debhelper substitutes QMAKE_EXECUTABLE and using that fixes things here.
I'm attaching a patch for your convenience. Please consider forwarding
it upstream.

Helmut

Control: forwarded -1 https://gitlab.com/ubports/development/apps/lomiri-weather-app/-/merge_requests/146

Done.

Thank you,
Jeremy Bícha