<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/132556>132556</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Recent apt.llvm.org packages can no longer be used.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            packaging
      </td>
    </tr>

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

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

<pre>
    I just updated the libc++ Docker CI image and trying to use them causes the CI to fail during the cmake configure phase.
https://github.com/llvm/llvm-project/actions/runs/14007902524/job/39224079079?pr=132539

The interesting part is 
```
 /usr/lib/lib/cmake/llvm/LLVM-Config.cmake
 ^
```
The file is in the image, but named 
```
/usr/lib/llvm-21/lib/cmake/llvm/LLVMExports.cmake
 ^^^^^^^^
```
This breakage happened between b6bb9dc5abd7c6452c13a53fa8949cb259db459b and dd97324f119af515944b7ec79fe627cfa70d4a2a. @sylvestre does this ring any bell for you?

If not I probably need to investigate a bit further.
</pre>
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