build.xml

<project name="algebra" basedir="." default="algebra" >

	<property name="processor.srcdir"   value="processor"         />
	<property name="processor.classdir" value="bin/processor"     />
	<property name="processor.jar"      value="bin/processor.jar" />
	<property name="algebra.srcdir"     value="src"               />
	<property name="algebra.classdir"   value="bin/algebra"       />

	<target name="processor-classes">
		<mkdir dir="${processor.classdir}" />
		<delete dir="${processor.classdir}/com" />
		<javac srcdir="${processor.srcdir}" destdir="${processor.classdir}" includeantruntime="false" debug="true"/>
	</target>

	<target name="processor-jar" depends="processor-classes">
		<jar jarfile="${processor.jar}">
			<fileset dir="${processor.classdir}" />
			<service type="javax.annotation.processing.Processor">
				<provider classname="com.mdgeorge.algebra.properties.meta.PropertyChecker" />
				<provider classname="com.mdgeorge.algebra.properties.meta.TestGenerator" />
			</service>
		</jar>
	</target>

	<target name="algebra" depends="processor-jar">
		<!-- delete output, because ant/java suck and won't rebuild with new jar -->
		<mkdir dir="${algebra.classdir}"/>
		<delete dir="${algebra.classdir}/com" />
		<javac
			srcdir="${algebra.srcdir}"
			destdir="${algebra.classdir}"
			includeantruntime="false"
			classpath="${processor.jar}"
		>
			<compilerarg value="-processorpath" />
			<compilerarg path="${processor.jar}" />
		</javac>
	</target>

</project>