From e7515c4f5e6e29b96b663afed7ddc05fb637af0f Mon Sep 17 00:00:00 2001
From: Christophe Delage <Christophe.Delage@sophia.inria.fr>
Date: Tue, 16 May 2006 09:12:24 +0000
Subject: [PATCH] added #include <functional>

---
 Spatial_sorting/include/CGAL/Hilbert_sort_2.h | 2 ++
 Spatial_sorting/include/CGAL/Hilbert_sort_3.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Spatial_sorting/include/CGAL/Hilbert_sort_2.h b/Spatial_sorting/include/CGAL/Hilbert_sort_2.h
index 19998bb7998..003e0b06749 100644
--- a/Spatial_sorting/include/CGAL/Hilbert_sort_2.h
+++ b/Spatial_sorting/include/CGAL/Hilbert_sort_2.h
@@ -3,6 +3,8 @@
 
 #include <CGAL/basic.h>
 
+#include <functional>
+
 #include <CGAL/Hilbert_sort_base.h>
 
 CGAL_BEGIN_NAMESPACE
diff --git a/Spatial_sorting/include/CGAL/Hilbert_sort_3.h b/Spatial_sorting/include/CGAL/Hilbert_sort_3.h
index 3fb986f7802..6745b4a5d11 100644
--- a/Spatial_sorting/include/CGAL/Hilbert_sort_3.h
+++ b/Spatial_sorting/include/CGAL/Hilbert_sort_3.h
@@ -3,6 +3,8 @@
 
 #include <CGAL/basic.h>
 
+#include <functional>
+
 #include <CGAL/Hilbert_sort_base.h>
 
 CGAL_BEGIN_NAMESPACE