Comment 11 for bug 424256

I'm using Vala, so I don't directly pass a DBusGProxy - I think Vala handles this, then I can't fix that warning.
Also, GDU still hasn't Vala bindings and I can't generate the .vapi file (following the tutorial over at live.gnome.org/Vala) because the include file requires to define GDU_API_IS_SUBJECT_TO_CHANGE before including it, and I don't know how to tell vala-gen-introspect to do that.
I'm a bit stuck.