Previously the plugin .pri files that CMake generated for qmake
consumption contained an '-' to exclude the plugin from
auto-importing only if the plugin type was generic or a platform
plugin.
Now that plugin projects that should be excluded have a proper
DEFAULT_IF FALSE
clause, we can simply query for the defaultness of the plugin
to know whether to exclude it in the generated .pri file.
This fixes an issue with Qt static builds and qtvirtualkeyboard.
The vkb plugin was not excluded and thus any simple QtGui app
linked to the vkb plugin in a static qmake project. This led to linker
issues because the vkb plugin also depends on a vkb quick plugin which
is not listed as a dependency.
Augments 76230d9879
Amends c975c35eae
Pick-to: 6.1 6.1.0
Fixes: QTBUG-92529
Task-number: QTBUG-87861
Change-Id: I9671f6504374cf0799289bbe19110e01c129402e
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>