ant/proposal/myrmidon/src/manifest/runtime-ant-descriptor.xml

<ant-lib>

  <types>
    <!-- core tasks for operation -->
    <task name="facility" classname="org.apache.antlib.runtime.Facility" />
    <task name="typedef" classname="org.apache.antlib.runtime.TypeDef" />
    <task name="converterdef" classname="org.apache.antlib.runtime.ConverterDef" />
    <task name="import" classname="org.apache.antlib.runtime.Import" />
    <!--<task name="ant-call" classname="org.apache.antlib.runtime.AntCall" />-->
  </types>

</ant-lib>