Index: head/graphics/luxrender14/files/patch-accelerators_bvhaccel.cpp
===================================================================
--- head/graphics/luxrender14/files/patch-accelerators_bvhaccel.cpp	(nonexistent)
+++ head/graphics/luxrender14/files/patch-accelerators_bvhaccel.cpp	(revision 474653)
@@ -0,0 +1,23 @@
+After http://github.com/boostorg/range/commit/69409ed63a9e1 build fails:
+
+accelerators/bvhaccel.cpp:149:19: error: call to 'distance' is ambiguous
+                        u_int middle = distance(list.begin(), it);
+                                       ^~~~~~~~
+/usr/include/c++/v1/iterator:511:1: note: candidate function [with _InputIter = std::__1::__wrap_iter<boost::shared_ptr<lux::BVHAccelTreeNode> *>]
+distance(_InputIter __first, _InputIter __last)
+^
+/usr/local/include/boost/iterator/distance.hpp:49:9: note: candidate function [with SinglePassIterator = std::__1::__wrap_iter<boost::shared_ptr<lux::BVHAccelTreeNode> *>]
+        distance(SinglePassIterator first, SinglePassIterator last)
+        ^
+
+--- accelerators/bvhaccel.cpp.orig	2015-01-20 23:10:10 UTC
++++ accelerators/bvhaccel.cpp
+@@ -146,7 +146,7 @@ boost::shared_ptr<BVHAccelTreeNode> BVHAccel::BuildHie
+ 
+ 			vector<boost::shared_ptr<BVHAccelTreeNode> >::iterator it =
+ 				partition(list.begin()+splits[j], list.begin()+splits[j+1], bind2nd(ptr_fun(bvh_ltf[splitAxis]), splitValue));
+-			u_int middle = distance(list.begin(), it);
++			u_int middle = std::distance(list.begin(), it);
+ 			middle = max(splits[j]+1, min(splits[j+1]-1, middle)); // Make sure coincidental BBs are still split
+ 			splits.insert(splits.begin()+j+1, middle);
+ 		}

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