      <!-- from Albuquerque 2017 -->
        <td><a href="https://wg21.link/p0859r0">P0859R0</a> (<a href="#dr">DR</a>)</td>
        <td class="full" align="center">Clang 8</td>
      </tr>
    <tr>
      <td>Alignment support</td>
      <td><a href="https://wg21.link/n2341">N2341</a></td>
      <td class="full" align="center">Clang 3.3</td>
    </tr>
    <tr>
      <td>Conditionally-support behavior</td>
      <td><a href="https://wg21.link/n1627">N1627</a></td>
      <td class="full" align="center">Clang 