<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/142759>142759</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            libc++1-20 deb packages missing libc++.so.1 symlink
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc++
      </td>
    </tr>

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

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

<pre>
    On our llvm-20 CI shows errors that do not happen on the same CI for llvm-19:

```
libc++.so.1: cannot open shared object file: No such file or directory
```

Upon closer inspection it seems the file `/usr/lib/x86_64-linux-gnu/libc++.so.1` is no longer there.

See file contents: https://packages.debian.org/experimental/amd64/libc++1-20/filelist

Compare with https://packages.debian.org/sid/amd64/libc++1-19/filelist

The same problem occurs with packages provided via `deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-20 main`

</pre>
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