Comment 22 for bug 1203888

Some progress:

In libdbusmenu/libdbusmenu-gtk/parser.c the following change was made:

http://bazaar.launchpad.net/~dbusmenu-team/libdbusmenu/trunk.14.04/revision/355

        g_signal_connect (G_OBJECT (menu),
- "child-added",
- G_CALLBACK (child_added_cb),
+#ifdef HAVE_GTK3
+ "insert",
+#else
+ "child-added"
+#endif
+ G_CALLBACK (item_inserted_cb),
                          mi);
        g_signal_connect (G_OBJECT (menu),
- "child-removed",
- G_CALLBACK (child_removed_cb),
+ "remove",
+ G_CALLBACK (item_removed_cb),
                          mi);

Notice in particular that "child-added" has a check which produces a different result depending on gtk2/gtk3, but "child-removed" was simple replaced by "remove".

If I change "child-added" to "something-else", the error message produced changes:

./test-indicator.py:15: Warning: /build/buildd/glib2.0-2.38.1/./gobject/gsignal.c:2475: signal 'something-else' is invalid for instance '0x23b70c0' of type 'GtkMenu'

However, if I change "child-added" to "insert" (so that it matches the GTK3 version, as with the "remove" signal) then the test case segfaults.