diff -r 2c585bb9560c -r 995162143ef4 src/Pure/System/platform.scala
--- a/src/Pure/System/platform.scala	Thu Feb 20 14:17:28 2014 +0100
+++ b/src/Pure/System/platform.scala	Thu Feb 20 14:36:17 2014 +0100
@@ -7,7 +7,6 @@
 
 package isabelle
 
-import java.lang.System
 
 import scala.util.matching.Regex