diff -up kbilliards-0.8.7b/src/aiplayer.cpp~ kbilliards-0.8.7b/src/aiplayer.cpp
--- kbilliards-0.8.7b/src/aiplayer.cpp~	2008-01-08 22:46:26.000000000 +0100
+++ kbilliards-0.8.7b/src/aiplayer.cpp	2008-01-08 22:46:26.000000000 +0100
@@ -20,7 +20,7 @@
 #include "aiplayer.h"
 #include <iostream>
 #include <sstream>
-
+#include <stdlib.h>
 
 #include <qnamespace.h>
 #include <qpen.h>