From 7a7c4fa44727f04b60e1bf1333436dd126e2907f Mon Sep 17 00:00:00 2001
From: Laurent Rineau <laurent.rineau@cgal.org>
Date: Thu, 11 Jun 2015 15:27:20 +0200
Subject: [PATCH] <boost/core/ref.hpp> appeared in Boost-1.56

The compatibility path is <boost/ref.hpp>.
---
 BGL/include/CGAL/boost/graph/visitor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BGL/include/CGAL/boost/graph/visitor.h b/BGL/include/CGAL/boost/graph/visitor.h
index 13c19b78e08..57198651dac 100644
--- a/BGL/include/CGAL/boost/graph/visitor.h
+++ b/BGL/include/CGAL/boost/graph/visitor.h
@@ -3,7 +3,7 @@
 
 #include <boost/graph/graph_traits.hpp>
 #include <boost/tuple/tuple.hpp>
-#include <boost/core/ref.hpp>
+#include <boost/ref.hpp>
 
 namespace boost
 {