diff -dur a/pthread/condition_variable.hpp b/pthread/condition_variable.hpp
--- a/pthread/condition_variable.hpp	2009-12-10 20:02:37.000000000 +0100
+++ b/pthread/condition_variable.hpp	2009-12-10 20:03:11.000000000 +0100
@@ -48,8 +48,8 @@
         pthread_mutex_t internal_mutex;
         pthread_cond_t cond;
 
-        condition_variable_any(condition_variable&);
-        condition_variable_any& operator=(condition_variable&);
+        condition_variable_any(condition_variable_any&);
+        condition_variable_any& operator=(condition_variable_any&);
 
     public:
         condition_variable_any()