--- /usr/include/boost/polygon/polygon.hpp.orig	2012-01-26 01:05:15.934998805 +0800

+++ /usr/include/boost/polygon/polygon.hpp	2012-01-26 01:13:10.547000000 +0800

@@ -24,6 +24,8 @@

 #include "transform.hpp"

 #include "detail/transform_detail.hpp"

+#include "detail/polygon_sort_adaptor.hpp"

+

 //interval

 #include "interval_data.hpp"

 #include "interval_traits.hpp"