diff --git a/include/boost/intrusive_ptr.hpp b/include/boost/intrusive_ptr.hpp
index 36bc321..4ada734 100644
--- a/include/boost/intrusive_ptr.hpp
+++ b/include/boost/intrusive_ptr.hpp
@@ -20,7 +20,6 @@
 #endif
 
 #include <functional> // std::less
-#include <boost/type_traits/ice.hpp>
 
 namespace boost
 {
@@ -194,12 +193,6 @@ template<class T> T * get_pointer(intrusive_ptr<T> const & p)
     return p.get();
 }
 
-namespace detail {
-  // is_pointerlike_helper enables Signals library to recognize intrusive_ptr
-  template<typename T>
-  type_traits::yes_type is_pointerlike_helper(const intrusive_ptr<T>&, int);
-} // end namespace detail
-
 } // namespace boost
 
 #ifdef BOOST_MSVC
diff --git a/include/boost/scoped_ptr.hpp b/include/boost/scoped_ptr.hpp
index 77c77a5..738ad1b 100644
--- a/include/boost/scoped_ptr.hpp
+++ b/include/boost/scoped_ptr.hpp
@@ -14,7 +14,6 @@
 
 #include <boost/assert.hpp>
 #include <boost/checked_delete.hpp>
-#include <boost/type_traits/ice.hpp>
 
 #ifndef BOOST_NO_AUTO_PTR
 # include <memory>          // for std::auto_ptr
@@ -120,12 +119,6 @@ template<typename T> inline T * get_pointer(scoped_ptr<T> const & p)
     return p.get();
 }
 
-namespace detail {
-  // is_pointerlike_helper enables Signals library to recognize scoped_ptr
-  template<typename T>
-  type_traits::yes_type is_pointerlike_helper(const scoped_ptr<T>&, int);
-} // end namespace detail
-
 } // namespace boost
 
 #endif // #ifndef BOOST_SCOPED_PTR_HPP_INCLUDED
diff --git a/include/boost/shared_ptr.hpp b/include/boost/shared_ptr.hpp
index d9cc25d..8f55948 100644
--- a/include/boost/shared_ptr.hpp
+++ b/include/boost/shared_ptr.hpp
@@ -25,7 +25,6 @@
 #include <boost/checked_delete.hpp>
 #include <boost/throw_exception.hpp>
 #include <boost/detail/shared_count.hpp>
-#include <boost/type_traits/ice.hpp>
 
 #include <memory>             // for std::auto_ptr
 #include <algorithm>          // for std::swap
@@ -324,12 +323,6 @@ template<typename T> inline T * get_pointer(shared_ptr<T> const & p)
     return p.get();
 }
 
-namespace detail {
-  // is_pointerlike_helper enables Signals library to recognize shared_ptr
-  template<typename T>
-  type_traits::yes_type is_pointerlike_helper(const shared_ptr<T>&, int);
-} // end namespace detail
-
 // shared_from_this() creates a shared_ptr from a raw pointer (usually 'this')
 
 namespace detail
diff --git a/include/boost/weak_ptr.hpp b/include/boost/weak_ptr.hpp
index dc11ca0..e04b4f1 100644
--- a/include/boost/weak_ptr.hpp
+++ b/include/boost/weak_ptr.hpp
@@ -168,19 +168,6 @@ template<class T> shared_ptr<T> make_shared(weak_ptr<T> const & r) // never thro
     }
 }
 
-// mem_fn support
-
-template<class T> T * get_pointer(weak_ptr<T> const & p)
-{
-    return p.get();
-}
-
-namespace detail {
-  // is_pointerlike_helper enables Signals library to recognize intrusive_ptr
-  template<typename T>
-  type_traits::yes_type is_pointerlike_helper(const weak_ptr<T>&, int);
-} // end namespace detail
-
 } // namespace boost
 
 #ifdef BOOST_MSVC