Index: boost/lambda/detail/arity_code.hpp
===================================================================
--- boost/lambda/detail/arity_code.hpp	(revision 41287)
+++ boost/lambda/detail/arity_code.hpp	(working copy)
@@ -46,8 +46,11 @@
 
 template <class T> struct get_arity {
 
-  BOOST_STATIC_CONSTANT(int, value = detail::get_arity_<typename boost::remove_cv<typename boost::remove_reference<T>::type>::type>::value);
+  // Workaround for MSVC8 SP1 ICE.
+  typedef typename boost::remove_cv<typename boost::remove_reference<T>::type>::type raw_type;
 
+  BOOST_STATIC_CONSTANT(int, value = detail::get_arity_<raw_type>::value);
+
 };
 
 namespace detail {