Compc ant task and external framework

Question

I'm writing an ant task to compile a couple of libraries into
SWCs and then a shell app (that uses the libraries) into a SWF for
deployment. If I compile the libraries by hand then run just the
'mxmlc' part of my ant script it compiles fine. However when I try
and first compile a library into a SWC with 'compc' it compiles but
then the shell app complains that the classes from the library are
missing. One thing that may be causing the problem is my library
path (through flex builder) has it's framework.swc set to 'Link
Type: External' and I'm not sure how to define that with 'compc'.
The weird thing is the flex builder compiled and 'compc' compiled
SWCs are the same size. Here's my target for 'compc':

Answer 1

    <mxmlc
         file="${project.name}/src/Test.mxml"
         output="${build.mxmlc.dir}/Test.swf"
         static-link-runtime-shared-libraries="true"
    >
          <load-config filename="${air.config}"/>
          <source-path path-element="${project.name}/src" />
         <runtime-shared-library-path path-element="${flex.frameworks.dir}/libs/framework.swc">
                <url rsl-url="${rsl.dir}/framework_3.2.0.3958.swz"/>
                <url rsl-url="${rsl.dir}/framework_3.2.0.3958.swf"/>
         </runtime-shared-library-path>
         <runtime-shared-library-path path-element="${flex.frameworks.dir}/libs/datavisualization.swc">
                <url rsl-url="${rsl.dir}/datavisualization_3.2.0.3958.swf"/>
         </runtime-shared-library-path>
    </mxmlc>
This also seems to work. AIR libraries are included in my output SWF. It all happens right when I have static-link-runtime-shared-libraries="true" . Why? Why does that not work when i have static-link-runtime-shared-libraries="false"  ??