Problem with Qt plugin system

[zuck]

Then I suppose my previous comment was accurate : QPluginLoader tries to cast the object to pkApplication using qobject_cast<> but as pkApplicationBase does not have the Q_INTERFACE macro this fails

Yes but if I move the Q_INTERFACES macro into the pkApplicationBase body nothing changes (no example window appears when i launch the server application) and the pointer is always null.

This is the error string returned by QPluginLoader:

Cannot load library [...]/libexampleapp.so: ([...]/libexampleapp.so: undefined symbol: _ZN17pkApplicationBase16staticMetaObjectE)

Cannot load library [...]/libexampleapp.so: ([...]/libexampleapp.so: undefined symbol: _ZN17pkApplicationBase16staticMetaObjectE)

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