--- include/boost/polygon/polygon_90_set_data.hpp.orig	2012-07-30 11:26:41.000000000 +0200
+++ include/boost/polygon/polygon_90_set_data.hpp	2012-07-30 13:14:36.000000000 +0200
@@ -16,6 +16,7 @@
 #include "detail/iterator_points_to_compact.hpp"
 #include "detail/iterator_compact_to_points.hpp"
 #include "polygon_traits.hpp"
+#include "detail/polygon_sort_adaptor.hpp"
 
 //manhattan boolean algorithms
 #include "detail/boolean_op.hpp"