diff --git a/.gitattributes b/.gitattributes
index 1cbf6498030..c8ddae19cbf 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1277,6 +1277,7 @@ Circular_kernel_2/doc_tex/Circular_kernel_2/fig/Boolean_operation.png -text
 Circular_kernel_2/doc_tex/Circular_kernel_2/fig/Boolean_operation_detail.png -text
 Circular_kernel_2/examples/Circular_kernel_2/functor_has_on.cpp -text
 Circular_kernel_2/include/CGAL/Circular_kernel_intersections.h -text
+Circular_kernel_2/include/CGAL/Filtered_bbox_circular_kernel_2/interface_macros.h -text
 Circular_kernel_3/demo/Circular_kernel_3/images/button_axis.gif -text svneol=unset#image/gif
 Circular_kernel_3/demo/Circular_kernel_3/images/button_light.gif -text svneol=unset#image/gif
 Circular_kernel_3/demo/Circular_kernel_3/images/button_line.gif -text svneol=unset#image/gif
diff --git a/Circular_kernel_2/include/CGAL/Filtered_bbox_circular_kernel_2/interface_macros.h b/Circular_kernel_2/include/CGAL/Filtered_bbox_circular_kernel_2/interface_macros.h
new file mode 100644
index 00000000000..8cf5476c744
--- /dev/null
+++ b/Circular_kernel_2/include/CGAL/Filtered_bbox_circular_kernel_2/interface_macros.h
@@ -0,0 +1,72 @@
+// Copyright (c) 2003-2008  INRIA Sophia-Antipolis (France).
+// All rights reserved.
+//
+// This file is part of CGAL (www.cgal.org); you may redistribute it under
+// the terms of the Q Public License version 1.0.
+// See the file LICENSE.QPL distributed with CGAL.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// $URL: svn+ssh://pmachado@scm.gforge.inria.fr/svn/cgal/trunk/Circular_kernel_2/include/CGAL/Circular_kernel_2/interface_macros.h $
+// $Id: interface_macros.h 44444 2008-07-25 15:02:26Z pmachado $
+//
+// Author(s)     : Monique Teillaud, Sylvain Pion, Pedro Machado
+
+// Partially supported by the IST Programme of the EU as a Shared-cost
+// RTD (FET Open) Project under Contract No  IST-2000-26473 
+// (ECG - Effective Computational Geometry for Curves and Surfaces) 
+// and a STREP (FET Open) Project under Contract No  IST-006413 
+// (ACS -- Algorithms for Complex Shapes)
+
+
+
+// This file is intentionally not protected against re-inclusion.
+// It's aimed at being included from within a kernel traits class, this
+// way we share more code.
+
+// It is the responsability of the including file to correctly set the 2
+// macros CGAL_Filtered_Bbox_Circular_Kernel_pred and CGAL_Filtered_Bbox_Circular_Kernel_cons.
+// And they are #undefed at the end of this file.
+
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Compare_x_2, compare_x_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Compare_y_2, compare_y_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Compare_xy_2, compare_xy_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Has_on_2, has_on_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Compare_y_at_x_2, compare_y_at_x_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Compare_y_to_right_2, compare_y_to_right_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Do_overlap_2, do_overlap_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Equal_2, equal_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(In_x_range_2, in_x_range_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Do_intersect_2, do_intersect_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_pred(Is_vertical_2, is_vertical_2_object)
+
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_line_arc_2,
+  construct_line_arc_2_object_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_circular_arc_2,
+  construct_circular_arc_2_object_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_circular_source_vertex_2,
+  construct_circular_source_vertex_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_circular_target_vertex_2,
+  construct_circular_target_vertex_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_circular_min_vertex_2,
+  construct_circular_min_vertex_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_circular_max_vertex_2,
+  construct_circular_max_vertex_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Make_x_monotone_2,
+  make_x_monotone_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Intersect_2,
+  intersect_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Split_2,
+  split_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_bbox_2,
+  construct_bbox_2_object)
+  CGAL_Filtered_Bbox_Circular_Kernel_cons(Construct_circular_arc_point_2,
+  construct_circular_arc_point_2_object)
+
+#undef CGAL_Filtered_Bbox_Circular_Kernel_pred
+#undef CGAL_Filtered_Bbox_Circular_Kernel_cons
+