Fixed the following problem:

liancheng · liancheng · commit 843a3a4b4f6f · 2007-06-12T02:26:06.000Z
* template keyword missing in struct get_real_algorithm definition in boost/network/message/transformers.hpp, and gcc 4.1.2 complains.
diff --git a/boost/network/message/transformers.hpp b/boost/network/message/transformers.hpp
@@ -18,7 +18,7 @@ namespace boost { namespace network {
     namespace impl {
         template <class Algorithm, class Selector>
             struct get_real_algorithm {
-                typedef typename Algorithm::type<Selector> type;
+                typedef typename Algorithm::template type<Selector> type;
             };
 
         template <class Algorithm, class Selector>
