Index: detail/adjacency_list.hpp
===================================================================
--- detail/adjacency_list.hpp	(revision 63671)
+++ detail/adjacency_list.hpp	(working copy)
@@ -12,6 +12,7 @@
 #ifndef BOOST_GRAPH_DETAIL_ADJACENCY_LIST_HPP
 #define BOOST_GRAPH_DETAIL_ADJACENCY_LIST_HPP
 
+#include <algorithm>
 #include <map> // for vertex_map in copy_impl
 #include <boost/config.hpp>
 #include <boost/detail/workaround.hpp>