--- build.xml	2002-06-17 20:36:17.000000000 +0200
+++ build.xml-gil	2011-08-02 13:18:08.614750114 +0200
@@ -16,7 +16,7 @@
 </target>
 
 <target name="build" depends="init" >
-<javac srcdir="${src}" destdir="${build}/classes"
+<javac srcdir="${src}"  source="1.4" target="1.4" destdir="${build}/classes"
  includes="vizant/*.java"/>
 </target>