Dymanic inputs and bundlesequence without common bundles

gistfile1.txt

newatson@ltipc682:~/.cfagent/inputs$ cat nocommon.cf
body common control
{
      bundlesequence  => { "first", @{first.bs} };
      inputs          => { "first.cf", @{first.inputs} };
}
newatson@ltipc682:~/.cfagent/inputs$ cat first.cf
bundle agent first
{
      vars:
          "bs"     slist => { "main", "post" };
          "inputs" slist => { "post.cf" };

     classes:
         "alt"
             expression => "use_alt",
             scope      => "namespace";
}
newatson@ltipc682:~/.cfagent/inputs$ cat post.cf
bundle agent main
{
      reports:
          "main bundle";
}

bundle agent post
{
      reports:
          !alt::
              "post bundle";
          alt::
             "alternate post bundle";
}

newatson@ltipc682:~/.cfagent/inputs$ cf-agent -V
CFEngine Core 3.5.1.e5870db

newatson@ltipc682:~/.cfagent/inputs$ cf-agent -IKf ./nocommon.cf          
2013-06-17T14:07:44-0400   notice: R: main bundle
2013-06-17T14:07:44-0400   notice: R: post bundle

newatson@ltipc682:~/.cfagent/inputs$ cf-agent -IKf ./nocommon.cf -D use_alt
2013-06-17T14:07:47-0400   notice: R: main bundle
2013-06-17T14:07:47-0400   notice: R: alternate post bundle