of
    changes relative to pre-compiled code.</li>

    <li>A simple configuration file defines what code is required (and what
    compile options are required). Typically, standard versions of these
    configuration files are maintained within the repository. Users can then
    define changes relative to these standard versions.</li>

    <li>If necessary, code can be transferred to a different platform ready for
    building.</li>
  </ul>
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