<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/58764>58764</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Backport d7d743621a0d5d13ed54d358944857ccba598299 to Clang 15.x
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          AaronBallman
      </td>
    </tr>
</table>

<pre>
    This fixes a minor regression introduced in 15.0 regarding what builtin library functions we expose in gnu2x mode.
</pre>
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