`Action' is an ambiguous reference between `GLib.Action' and `Gtk.Action'

[GoogleCodeExporter]

What steps will reproduce the problem?
1. svn checkout http://glasscat.googlecode.com/svn/trunk/ glasscat-read-only
2. ./autogen.sh
3. make

What is the expected output? What do you see instead?

sheep@ghostwheel:~/dev/ref/glasscat-read-only$ make
make  all-am
make[1]: Entering directory `/home/sheep/dev/ref/glasscat-read-only'
  VALAC  glasscat_vala.stamp
src/basewindow.vala:237.3-237.8: error: `Action' is an ambiguous reference 
between `GLib.Action' and `Gtk.Action'
        Action action = proxy.get_related_action ();
        ^^^^^^
src/basewindow.vala:249.52-249.57: error: `Action' is an ambiguous reference 
between `GLib.Action' and `Gtk.Action'
    private void on_connect_proxy (UIManager manager, Action action, Widget proxy) {
                                                      ^^^^^^
src/basewindow.vala:254.55-254.60: error: `Action' is an ambiguous reference 
between `GLib.Action' and `Gtk.Action'
    private void on_disconnect_proxy (UIManager manager, Action action, Widget proxy) {
                                                         ^^^^^^
src/basewindow.vala:301.51-301.56: error: `Action' is an ambiguous reference 
between `GLib.Action' and `Gtk.Action'
    private void on_action_activated (GLib.Object o, Action action) {
                                                     ^^^^^^
src/uimanager.vala:6.10-6.20: error: `ActionGroup' is an ambiguous reference 
between `GLib.ActionGroup' and `Gtk.ActionGroup'
    private ActionGroup action_group;
            ^^^^^^^^^^^
src/uimanager.vala:7.10-7.20: error: `ActionGroup' is an ambiguous reference 
between `GLib.ActionGroup' and `Gtk.ActionGroup'
    private ActionGroup document_action_group;
            ^^^^^^^^^^^
Compilation failed: 6 error(s), 0 warning(s)
make[1]: *** [glasscat_vala.stamp] Error 1
make[1]: Leaving directory `/home/sheep/dev/ref/glasscat-read-only'
make: *** [all] Error 2


What version of the product are you using? On what operating system?

Ubuntu Natty, glasscat 4.0.0 from the repository, Vala 0.12.0

Please provide any additional information below.

Original issue reported on code.google.com by radomir....@gmail.com on 4 Jun 2011 at 10:36