   source code, even though third parties are not compelled to copy the
     source along with the object code.
    </p>
   </li>

   <li>
    <p>
     <b>4.</b> You may not copy, modify, sublicense, or distribute the
     Program except as expressly provided under this License. Any attempt
     otherwise to copy, modify, sublicense or distribute the Program is void,
     and will automatically terminate your rights under this License. However,
     parties who have received copies, or rights, from you unde