[Vala] Generating bindings for classes defined over multiple packages

[Gabe Gorelick-Feldman <gabegorelick gmail com>]

I hope this is the right place to ask this. I'm working on generating vala
bindings for a a set of packages. One package is the "core" package and the
other is the gtk extension. The gtk package adds gtk-specific methods onto
the core classes directly. The core package bindings build fine, but the gtk
ones do not. The problem is that even though the gtk extension headers
#include the core headers, vala-gen-introspect does not seem to realize that
the gtk package headers are just defining new methods on top of existing
classes from another package. Instead, it interprets the methods as
callbacks.

Is there any way to do this? Let me know if I'm not being clear enough.

Thanks.