<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/54637>54637</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
             undefined symbol: _ZTIN4llvm10CallbackVHE
        </td>
    </tr>

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

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

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

<pre>
    I have compiled the llvm-9.0.1 project. But there goes wrong when I install a haskell package.

I guess it's because I didn't enable some options when compiling llvm，However these options is required by the haskell package.
So what options is needed,if it's so? Or how to solve this problem?
</pre>
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