diff -up ccrtp-1.6.0/src/control.cpp.orig ccrtp-1.6.0/src/control.cpp
--- ccrtp-1.6.0/src/control.cpp.orig	2008-02-07 08:49:22.000000000 +0100
+++ ccrtp-1.6.0/src/control.cpp	2008-02-07 08:50:09.000000000 +0100
@@ -43,6 +43,7 @@
 
 #include "private.h"
 #include <ccrtp/cqueue.h>
+#include <cstdlib>
 
 #ifdef  CCXX_NAMESPACES
 namespace ost {