[Vala] Produced C files don't include headers they should include

["Jaap A. Haitsma" <jaap haitsma org>]

Hi,

When I write the following code
-----
using GLib;

public class Foo.Foo : Object {

        static int main (string[] args) {

                Thread.init ();
                Gdk.threads_init ();

                Gtk.init (ref args);
                Gst.init (ref args);

                Gtk.main ();
                return 0;
        }

}
--------

and compile it to C code no #include statements for gtk, gstreamer and
gdk are generated. Consequently compiling the C code results in
warnings: implicit declerations for the gtk, gst and gdk functions I
use. Am I doing something wrong?

Jaap