--- autodocksuite-4.0.1.orig/src/autogrid/check_size.cpp	2008-08-04 22:44:46.000000000 -0700
+++ autodocksuite-4.0.1/src/autogrid/check_size.cpp	2008-08-04 22:45:12.000000000 -0700
@@ -27,6 +27,7 @@
 
 #include <iostream>
 #include <math.h>
+#include <cstdlib>
 #include "autogrid.h"