distro-source/build.xml

<project name="dist" default="build" basedir=".">
	<property name="gwt.root" location=".." />
	<property name="project.tail" value="distro-source" />
	<import file="${gwt.root}/platforms.ant.xml" />

	<target name="clean" description="Cleans this project's intermediate and output files">
		<delete dir="${gwt.build.dist}" failonerror="false" />
		<delete dir="${gwt.build.staging}" failonerror="false" />
	</target>
</project>