$NetBSD$

fix build with gcc4.3

--- lib/c_wrapper.cpp.orig	2006-11-18 10:52:33.000000000 +0000
+++ lib/c_wrapper.cpp
@@ -25,4 +25,5 @@
 
 ----------------------------------------------------------------------------*/
+#include <stdlib.h>
 #include "tunepimp.h"
 #include "mutex.h"
