build.xml

<project name="scribe-log4j" basedir="." default="jar">

  <property name="src.dir"     value="${basedir}/src"/>
  <property name="build.dir"   value="${basedir}/build"/>
  <property name="lib.dir"     value="${basedir}/lib"/>
  <property name="classes.dir" value="${build.dir}/classes"/>
  <property name="jar.dir"     value="${build.dir}/jar"/>

  <path id="classpath">
    <fileset dir="${lib.dir}" includes="**/*.jar"/>
  </path>

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

  <target name="compile">
      <mkdir dir="${classes.dir}"/>
      <javac srcdir="${src.dir}" destdir="${classes.dir}" classpathref="classpath"/>
  </target>

  <target name="jar" depends="compile">
      <mkdir dir="${jar.dir}"/>
      <jar destfile="${jar.dir}/${ant.project.name}.jar" basedir="${classes.dir}"/>
  </target>

  <target name="clean-build" depends="clean,jar"/>

</project>