<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/64579>64579</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [Backport][clang] Produce a warning instead of an error in unevaluated strings
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang:frontend,
            release:backport
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          cor3ntin
      </td>
    </tr>
</table>

<pre>
    https://reviews.llvm.org/D156596

The error caused build failures for some users, which was a regression against Clang 16.

@AaronBallman @hubert-reinterpretcast 
</pre>
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