Index: builtin_converters.cpp
===================================================================
--- builtin_converters.cpp	(revision 66775)
+++ builtin_converters.cpp	(working copy)
@@ -365,9 +365,10 @@
       }
       static PyTypeObject const* get_pytype() { return &PyFloat_Type;}
   };
-
+#if PY_VERSION_HEX >= 0x03000000
   unaryfunc py_unicode_as_string_unaryfunc = PyUnicode_AsUTF8String;
-
+#endif
+  
   // A SlotPolicy for extracting C++ strings from Python objects.
   struct string_rvalue_from_python
   {