diff --git a/include/boost/concept_archetype.hpp b/include/boost/concept_archetype.hpp
index bd57d97..8cf2dc5 100644
--- a/include/boost/concept_archetype.hpp
+++ b/include/boost/concept_archetype.hpp
@@ -422,6 +422,8 @@ namespace boost {
     };
     typedef const T* pointer;
     typedef std::ptrdiff_t difference_type;
+    input_iterator_archetype() { }
+    input_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -441,6 +443,8 @@ namespace boost {
     typedef const T& reference;
     typedef const T* pointer;
     typedef std::ptrdiff_t difference_type;
+    input_iterator_archetype_no_proxy() { }
+    input_iterator_archetype_no_proxy(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -493,6 +497,7 @@ namespace boost {
     typedef const T* pointer;
     typedef std::ptrdiff_t difference_type;
     input_output_iterator_archetype() { }
+    input_output_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -513,6 +518,7 @@ namespace boost {
     typedef T const* pointer;
     typedef std::ptrdiff_t difference_type;
     forward_iterator_archetype() { }
+    forward_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -533,6 +539,7 @@ namespace boost {
     typedef T* pointer;
     typedef std::ptrdiff_t difference_type;
     mutable_forward_iterator_archetype() { }
+    mutable_forward_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -553,6 +560,7 @@ namespace boost {
     typedef T* pointer;
     typedef std::ptrdiff_t difference_type;
     bidirectional_iterator_archetype() { }
+    bidirectional_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -575,6 +583,7 @@ namespace boost {
     typedef T* pointer;
     typedef std::ptrdiff_t difference_type;
     mutable_bidirectional_iterator_archetype() { }
+    mutable_bidirectional_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -597,6 +606,7 @@ namespace boost {
     typedef T* pointer;
     typedef std::ptrdiff_t difference_type;
     random_access_iterator_archetype() { }
+    random_access_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }
@@ -637,6 +647,7 @@ namespace boost {
     typedef T* pointer;
     typedef std::ptrdiff_t difference_type;
     mutable_random_access_iterator_archetype() { }
+    mutable_random_access_iterator_archetype(const self&) { }
     self& operator=(const self&) { return *this;  }
     bool operator==(const self&) const { return true; }
     bool operator!=(const self&) const { return true; }