--- varconf/variable.cpp.old	2008-11-06 19:42:50.000000000 +0100
+++ varconf/variable.cpp	2008-11-06 19:46:48.000000000 +0100
@@ -28,6 +28,7 @@
 
 #include <string>
 #include <cstdio>
+#include <stdlib.h>
 
 #ifdef __WIN32__
 #include <tchar.h>