Merge branch 'iss-18' into develop

Author: HerbertKoelman

include/pthread/pthread_exception.hpp

@@ -25,7 +25,7 @@ namespace pthread {
      * @param message error message
      * @param pthread_errno a pthread function return code.
      */
-    pthread_exception( const string message, const int pthread_errno = 0 ): _message{message}, _pthread_errno{pthread_number}{};
+    pthread_exception( const string message, const int pthread_errno = 0 ): _message{message}, _pthread_errno{pthread_errno}{};
 
     virtual ~pthread_exception(){};