From fa6606b7c9fb6258fffd5640fda563f18f3d626e Mon Sep 17 00:00:00 2001
From: Andreas Fabri <andreas.fabri@geometryfactory.com>
Date: Fri, 23 Sep 2016 08:15:14 +0200
Subject: [PATCH] Add includes so that public headers can be compiled
 individually

It strikes me that I have to include CGAL/Kernel/global_functions_2.h
The package uses an orientation test but the package has no traits class.
---
 Visibility_2/include/CGAL/Rotational_sweep_visibility_2.h | 1 +
 Visibility_2/include/CGAL/Simple_polygon_visibility_2.h   | 1 +
 Visibility_2/include/CGAL/Visibility_2/visibility_utils.h | 1 +
 3 files changed, 3 insertions(+)

diff --git a/Visibility_2/include/CGAL/Rotational_sweep_visibility_2.h b/Visibility_2/include/CGAL/Rotational_sweep_visibility_2.h
index 46b34a44b85..46048b92078 100644
--- a/Visibility_2/include/CGAL/Rotational_sweep_visibility_2.h
+++ b/Visibility_2/include/CGAL/Rotational_sweep_visibility_2.h
@@ -26,6 +26,7 @@
 #include <CGAL/Arrangement_2.h>
 #include <CGAL/bounding_box.h>
 #include <CGAL/assertions.h>
+#include <CGAL/Kernel/global_functions_2.h>
 #include <boost/unordered_map.hpp> 
 #include <iterator>
 
diff --git a/Visibility_2/include/CGAL/Simple_polygon_visibility_2.h b/Visibility_2/include/CGAL/Simple_polygon_visibility_2.h
index 61c8de1efbb..d7a9e5d76c4 100644
--- a/Visibility_2/include/CGAL/Simple_polygon_visibility_2.h
+++ b/Visibility_2/include/CGAL/Simple_polygon_visibility_2.h
@@ -27,6 +27,7 @@
 #include <CGAL/enum.h>
 #include <CGAL/Visibility_2/visibility_utils.h>
 #include <CGAL/Arrangement_2.h>
+#include <CGAL/Kernel/global_functions_2.h>
 #include <CGAL/Arr_walk_along_line_point_location.h>
 #include <CGAL/assertions.h>
 #include <stack>
diff --git a/Visibility_2/include/CGAL/Visibility_2/visibility_utils.h b/Visibility_2/include/CGAL/Visibility_2/visibility_utils.h
index e787cc551b2..5e332a73a3c 100644
--- a/Visibility_2/include/CGAL/Visibility_2/visibility_utils.h
+++ b/Visibility_2/include/CGAL/Visibility_2/visibility_utils.h
@@ -22,6 +22,7 @@
 #ifndef CGAL_VISIBILITY_UTILS_H
 #define CGAL_VISIBILITY_UTILS_H
 
+#include <iostream>
 #include <vector>
 #include <CGAL/tags.h>
 #include <CGAL/enum.h>