Comment 2 for bug 878697

StacktraceTop:
 link_activated (button=0x217d76f0, self=0x21932d08) at cc-wacom-panel.c:467
 _gtk_marshal_BOOLEAN__VOID (closure=0x219a7d50, return_value=0xbfbac924, n_param_values=1, param_values=0x21ce1948, invocation_hint=0xbfbac910, marshal_data=0x0) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmarshalers.c:916
 g_closure_invoke (closure=0x219a7d50, return_value=0xbfbac924, n_param_values=1, param_values=0x21ce1948, invocation_hint=0xbfbac910) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=0x21541168, detail=0, instance=0x217d76f0, emission_return=0xbfbaca5c, instance_and_params=0x21ce1948) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272
 g_signal_emit_valist (instance=0x217d76f0, signal_id=486, detail=0, var_args=0xbfbacacc "\334\312\272\277") at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3013