diff --git a/example/executor.cpp b/example/executor.cpp
index 184523da..2bb663c9 100644
--- a/example/executor.cpp
+++ b/example/executor.cpp
@@ -87,12 +87,14 @@ int main()
         submit_some( ea2);
         ea2.underlying_executor().run_queued_closures();
       }
+#if ! defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
       std::cout << BOOST_CONTEXTOF << std::endl;
       {
         boost::executor_adaptor < boost::basic_thread_pool > ea1(4);
         boost::executor_adaptor < boost::serial_executor > ea2(ea1);
         submit_some(ea2);
       }
+#endif
       std::cout << BOOST_CONTEXTOF << std::endl;
     }
     catch (std::exception& ex)
diff --git a/include/boost/thread/executors/executor_adaptor.hpp b/include/boost/thread/executors/executor_adaptor.hpp
index 4b69f713..0a60669f 100644
--- a/include/boost/thread/executors/executor_adaptor.hpp
+++ b/include/boost/thread/executors/executor_adaptor.hpp
@@ -99,26 +99,26 @@ namespace executors
       return ex.submit(boost::move(closure));
     }
 
-//#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
-//    template <typename Closure>
-//    void submit(Closure & closure)
-//    {
-//      work w ((closure));
-//      submit(boost::move(w));
-//    }
-//#endif
-//    void submit(void (*closure)())
-//    {
-//      work w ((closure));
-//      submit(boost::move(w));
-//    }
-//
-//    template <typename Closure>
-//    void submit(BOOST_THREAD_RV_REF(Closure) closure)
-//    {
-//      work w =boost::move(closure);
-//      submit(boost::move(w));
-//    }
+#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+    template <typename Closure>
+    void submit(Closure & closure)
+    {
+      work w ((closure));
+      submit(boost::move(w));
+    }
+#endif
+    void submit(void (*closure)())
+    {
+      work w ((closure));
+      submit(boost::move(w));
+    }
+
+    template <typename Closure>
+    void submit(BOOST_THREAD_RV_REF(Closure) closure)
+    {
+      work w =boost::move(closure);
+      submit(boost::move(w));
+    }
 
     /**
      * Effects: try to execute one task.
diff --git a/include/boost/thread/executors/serial_executor.hpp b/include/boost/thread/executors/serial_executor.hpp
index ae91224b..c58743eb 100644
--- a/include/boost/thread/executors/serial_executor.hpp
+++ b/include/boost/thread/executors/serial_executor.hpp
@@ -22,7 +22,8 @@
 
 namespace boost
 {
-
+namespace executors
+{
   class serial_executor
   {
     /// type-erasure to store the works to do
@@ -201,7 +202,8 @@ namespace boost
     }
 
   };
-
+}
+using executors::serial_executor;
 }
 
 #include <boost/config/abi_suffix.hpp>