<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/56169>56169</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            A "#else" is missed here?
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          Peter9606
      </td>
    </tr>
</table>

<pre>
    https://github.com/llvm/llvm-project/blob/1dd2c93a660cd5de0769ff88634fe149904caa17/openmp/runtime/src/kmp_affinity.h#L257

Don't see any reason that `#error` should be put here, but for arch that doesn't support sched_setaffinity and sched_getaffinity. So I guess a "#else" is missed.
</pre>
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