diff --git a/include/boost/mpl/if.hpp b/include/boost/mpl/if.hpp
index 7283e5b..6c00ce7 100644
--- a/include/boost/mpl/if.hpp
+++ b/include/boost/mpl/if.hpp
@@ -157,6 +157,18 @@ struct if_
 
 BOOST_MPL_AUX_VOID_SPEC(3, if_)
 
+/*
+template<>
+struct if_< void_,void_,void_ >
+{
+   template< typename T1,typename T2,typename T3 , typename T4=void_, typename T5=void_ >
+   struct apply : if_< T1,T2,T3 > { };
+};
+
+ namespace aux { template< typename T1,typename T2,typename T3 > struct template_arity< if_< T1,T2,T3 > > { static const int value = 3; };
+ template<> struct template_arity< if_< void_,void_,void_ > > { static const int value = 3; }; }
+*/
+
 } // namespace mpl
 } // namespace boost
 
diff --git a/include/boost/mpl/integral_c.hpp b/include/boost/mpl/integral_c.hpp
index 8fecd90..e50a2af 100644
--- a/include/boost/mpl/integral_c.hpp
+++ b/include/boost/mpl/integral_c.hpp
@@ -31,7 +31,12 @@ struct integral_c
 
     // have to #ifdef here: some compilers don't like the 'N + 1' form (MSVC),
     // while some other don't like 'value + 1' (Borland)
-#if defined(__BORLANDC__) || defined(__IBMCPP__) || defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241
+#if defined(__BORLANDC__)
+    BOOST_STATIC_CONSTANT(T, next_value = (value + 1));
+    BOOST_STATIC_CONSTANT(T, prior_value = (value - 1));
+    typedef integral_c<T, (N+1)> next;
+    typedef integral_c<T, (N-1)> prior;
+#elif defined(__IBMCPP__) || defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241
     BOOST_STATIC_CONSTANT(T, next_value = (N + 1));
     BOOST_STATIC_CONSTANT(T, prior_value = (N - 1));
     typedef integral_c<T, next_value> next;