$OpenBSD: patch-src_gui_states_state_zoom_cpp,v 1.1 2015/09/24 10:40:16 ajacoutot Exp $

Fix build with libsigc++ >= 2.6.0.

--- src/gui/states/state_zoom.cpp.orig	Thu Jul  9 09:33:04 2015
+++ src/gui/states/state_zoom.cpp	Thu Sep 24 11:08:06 2015
@@ -31,7 +31,6 @@
 #endif
 
 #include <sigc++/signal.h>
-#include <sigc++/object.h>
 
 #include <ETL/handle>
 #include <synfig/vector.h>
