[Interest] Cannot resolve qt_plugin_instance in QQmlExtensionPlugin

[Maxim Kouprianov]

Hi all.

I'm trying to write some QML extension plugin (QQmlExtensionPlugin, Qt5.0).

But it fails to load completely:

 > plugin cannot be loaded for module "MyPlugin.MyClass": Cannot resolve
 > symbol "qt_plugin_instance" in
 > imports/MyPlugin/MyClass/libmypluginmyclassplugin.so:
 > (Symbol not found: ).

Plugin source: https://gist.github.com/Xlab/2558aa068d49f0a2b6aa
What additional information shall I provide?
How to debug that cases?

Please help :(
Thanks in advance.

-- 
Regards,
Maxim Kouprianov