Building BIRT with PDE

I'm trying to build BIRT 2.5.2 from source to fix some bugs (I know about BIRT 2.6 but not all of our customers are on BIRT 2.6, yet).

I downloaded the BIRT 2.5.2 source ZIP and I found a开发者_JAVA百科 couple of product files in there. I unpacked the sources, copied features and plugins to a build directory. Now I run this build.xml:

<target name="pde-build">
    <java classname="org.eclipse.equinox.launcher.Main" fork="true" failonerror="true">
        <arg value="-application" />
        <arg value="org.eclipse.ant.core.antRunner" />
        <arg value="-buildfile" />
        <arg value="${eclipseLocation}/plugins/org.eclipse.pde.build_${pdeBuildPluginVersion}/scripts/productBuild/productBuild.xml" />
        <arg value="-Dtimestamp=${timestamp}" />
        <arg value="-verbose" />
        <classpath>
            <pathelement location="${eclipseLocation}/plugins/org.eclipse.equinox.launcher_${equinoxLauncherPluginVersion}.jar" />
        </classpath>
    </java>
</target>

But I get this error:

eclipse-3.5.2/plugins/org.eclipse.pde.build_3.5.2.R35x_20100114/scripts/productBuild/productBuild.xml:64:
Unable to find element: /org.eclipse.birt.report.engine/ReportEngineSDK.product

In my build.properties, I say:

product=/org.eclipse.birt.report.engine/ReportEngineSDK.product

and there is a file build/plugins/org.eclipse.birt.report.engine/ReportEngineSDK.product

My guess is that Eclipse has a search path of some kind to locate the product file.

What do I have to specify in the build.xml/.properties to make the productBuild.xml pick up the product file?

It seems that I need the full path to the .product file in the property product.

In addition, the ReportEngineSDK.product is outdated. Use .../features/org.eclipse.pde.build.container.feature/product/BIRT.product instead.