Equivalent of CONFIG+=qmltypes in CMake build?

Diracsbracket

Hello.
I just found out about the new way to expose C++ types to QML using the
QML_ELEMENT macro, as described e.g. here.

To test it with CMake builds, I converted the Adding example
Qt/Examples/Qt-5.15.0/qml/referenceexamples/adding
to a CMake project.

While it runs fine when using the old way of registering the type with

qmlRegisterType<Person>("People", 1,0, "Person");

it fails when commenting that line out (and uncommenting the QML_ELEMENT macro):

QQmlComponent: Component is not ready
(qrc:example.qml:52:1: module "People" is not installed
    import People 1.0
    ^)

I assume it has to do with not having used the CMake equivalent of the following .pro line:

CONFIG+=qmltypes

But, what is the CMake equivalent of the above CONFIG flag?

Thanks for your help!

Diracsbracket

@gillamkid, @Seboo
It seems CONFIG+=qmltypes is not supported in CMake for Qt 5 versions, but can be used in Qt 6, as described here:
https://stackoverflow.com/questions/63509161/how-to-use-qml-element-with-cmake

Have not tested it though.