From 676aa45c6ca4ecb3e98f86b364efd95dc406818b Mon Sep 17 00:00:00 2001
From: barendgehrels <barend@xs4all.nl>
Date: Wed, 22 Feb 2017 09:40:44 +0100
Subject: [PATCH] Minor changes

---
 .../detail/overlay/enrich_intersection_points.hpp           | 6 ++++--
 .../boost/geometry/algorithms/detail/overlay/get_turns.hpp  | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/boost/geometry/algorithms/detail/overlay/enrich_intersection_points.hpp b/include/boost/geometry/algorithms/detail/overlay/enrich_intersection_points.hpp
index 66b756880..ee0556bc7 100644
--- a/include/boost/geometry/algorithms/detail/overlay/enrich_intersection_points.hpp
+++ b/include/boost/geometry/algorithms/detail/overlay/enrich_intersection_points.hpp
@@ -19,7 +19,9 @@
 #  include <iostream>
 #  include <boost/geometry/algorithms/detail/overlay/debug_turn_info.hpp>
 #  include <boost/geometry/io/wkt/wkt.hpp>
-#  define BOOST_GEOMETRY_DEBUG_IDENTIFIER
+#  if ! defined(BOOST_GEOMETRY_DEBUG_IDENTIFIER)
+#    define BOOST_GEOMETRY_DEBUG_IDENTIFIER
+  #endif
 #endif
 
 #include <boost/range.hpp>
@@ -145,7 +147,7 @@ inline void enrich_assign(Operations& operations, Turns& turns)
              it != boost::end(operations);
              ++it)
         {
-            op_type& op = turns[it->turn_index]
+            op_type const& op = turns[it->turn_index]
                 .operations[it->operation_index];
 
             std::cout << it->turn_index
diff --git a/include/boost/geometry/algorithms/detail/overlay/get_turns.hpp b/include/boost/geometry/algorithms/detail/overlay/get_turns.hpp
index 6ea96352b..ce016f076 100644
--- a/include/boost/geometry/algorithms/detail/overlay/get_turns.hpp
+++ b/include/boost/geometry/algorithms/detail/overlay/get_turns.hpp
@@ -91,6 +91,7 @@ struct no_interrupt_policy
 {
     static bool const enabled = false;
 
+    // variable required by self_get_turn_points::get_turns
     static bool const has_intersections = false;
 
     template <typename Range>