Index: trunk/build.xml
===================================================================
--- trunk/build.xml	(revision 3833)
+++ trunk/build.xml	(revision 3856)
@@ -135,4 +135,14 @@
 		<delete dir="build" />
 		<delete dir="dist" />
+	</target>
+
+	<target name="javacc">
+		<exec executable="javacc">
+			<arg value="-debug_parser=false"/>
+			<arg value="-debug_lookahead=false"/>
+			<arg value="-debug_token_manager=false"/>
+			<arg value="-output_directory=${src.dir}/org/openstreetmap/josm/gui/mappaint/mapcss/parser"/>
+			<arg value="${src.dir}/org/openstreetmap/josm/gui/mappaint/mapcss/parser/MapCSSParser.jj"/>
+		</exec>
 	</target>