$OpenBSD: patch-Main_hs,v 1.1 2012/09/02 21:54:08 kili Exp $
--- Main.hs.orig	Sun Jul 19 12:41:15 2009
+++ Main.hs	Fri Jul 13 14:28:12 2012
@@ -1,4 +1,4 @@
-import System
+import System.Environment
 
 import Lexer
 import Parser