Index: lambda_functor_base.hpp
===================================================================
--- lambda_functor_base.hpp	(revision 41836)
+++ lambda_functor_base.hpp	(working copy)
@@ -16,6 +16,10 @@
 namespace boost { 
 namespace lambda {
 
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(push)
+#pragma warning(disable:4512) //assignment operator could not be generated
+#endif
 
   // for return type deductions we wrap bound argument to this class,
   // which fulfils the base class contract for lambda_functors
@@ -42,6 +46,10 @@
   RET call(CALL_FORMAL_ARGS) const { CALL_USE_ARGS; return elem; }
 };
 
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+
 template <class T> 
 inline lambda_functor<identity<T&> > var(T& t) { return identity<T&>(t); }
 
Index: lambda_functors.hpp
===================================================================
--- lambda_functors.hpp	(revision 41836)
+++ lambda_functors.hpp	(working copy)
@@ -105,8 +105,11 @@
 // other lambda_functors.
 // -------------------------------------------------------------------
 
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(push)
+#pragma warning(disable:4512) //assignment operator could not be generated
+#endif
 
-
 // -- lambda_functor NONE ------------------------------------------------
 template <class T>
 class lambda_functor : public T 
@@ -244,6 +247,9 @@
   } 
 };
 
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
 
 } // namespace lambda
 } // namespace boost