osd-contiki/tools/cooja/apps/native_gateway/build.xml

<?xml version="1.0"?>

<project name="Native IP Gateway" default="jar" basedir=".">
  <property name="java" location="java"/>
  <property name="build" location="build"/>
  <property name="lib" location="lib"/>
  <property name="cooja_jar" value="../../dist/cooja.jar"/>

  <target name="help">
    <echo>
The Native IP Gateway COOJA project provides access from natively running
applications like ping and telnet, to simulated nodes.

Requires pre-installation of Jpcap and (Windows-only) WinPcap.
 http://netresearch.ics.uci.edu/kfujii/Jpcap/doc/download.html
 http://www.winpcap.org/install/default.htm
    </echo>
  </target>

  <target name="init">
    <tstamp/>
  </target>

  <target name="compile" depends="init">
    <mkdir dir="${build}"/>
    <javac srcdir="${java}" destdir="${build}" debug="on">
      <classpath>
        <pathelement path="."/>
        <pathelement location="${cooja_jar}"/>
      </classpath>
    </javac>
  </target>

  <target name="clean" depends="init">
    <delete dir="${build}"/>
  </target>

  <target name="jar" depends="clean, init, compile">
    <mkdir dir="${lib}"/>
    <jar destfile="${lib}/native_gateway.jar" basedir="${build}">
      <manifest>
        <attribute name="Class-Path" value="."/>
      </manifest>
    </jar>
  </target>

</project>