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

Fix build with libsigc++ >= 2.6.0.

--- src/gui/widgets/widget_curves.cpp.orig	Thu Jul  9 09:33:04 2015
+++ src/gui/widgets/widget_curves.cpp	Thu Sep 24 11:08:06 2015
@@ -38,7 +38,6 @@
 #include <map>
 #include <vector>
 #include <ETL/misc>
-#include <sigc++/object.h>
 
 #include "general.h"
 
