diff --git a/include/boost/shared_ptr.hpp b/include/boost/shared_ptr.hpp
index 0a3bf6d..474bf4f 100644
--- a/include/boost/shared_ptr.hpp
+++ b/include/boost/shared_ptr.hpp
@@ -442,10 +442,12 @@ template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::
 
 // get_deleter (experimental)
 
-#if (defined(__GNUC__) &&  (__GNUC__ < 3)) || (defined(__EDG_VERSION__) && (__EDG_VERSION__ <= 238))
+#if ( defined(__GNUC__) && BOOST_WORKAROUND(__GNUC__, < 3) ) || \
+    ( defined(__EDG_VERSION__) && BOOST_WORKAROUND(__EDG_VERSION__, <= 238) ) || \
+    ( defined(__HP_aCC) && BOOST_WORKAROUND(__HP_aCC, <= 33500) )
 
 // g++ 2.9x doesn't allow static_cast<X const *>(void *)
-// apparently EDG 2.38 also doesn't accept it
+// apparently EDG 2.38 and HP aCC A.03.35 also don't accept it
 
 template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
 {