--- ./Main.hs.orig	2004-05-18 00:27:27.000000000 +0200
+++ ./Main.hs	2012-05-13 11:20:13.000000000 +0200
@@ -5,7 +5,7 @@
 import List
 import Maybe
 import Monad
-import System
+import System.Environment
 import GetOpt
 
 import Parser