<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/94563>94563</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvm-mt doesn't support multiple arguments to /manifest
        </td>
    </tr>

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

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

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

<pre>
    Per https://learn.microsoft.com/en-us/windows/win32/sbscs/mt-exe:
> -manifest  
>
> Specifies the name of the manifest file. To modify a single manifest, specify one manifest file name. For example, component.manifest.
>
> To merge multiple manifests, specify the names of the source manifests here. Specify the name of the updated manifest with either the -out, -outputresource, or -updateresource options. For example, the following command line requests an operation that merges two manifests, man1.manifest and man2.manifest, into a new manifest, man3.manifest.
>
> mt.exe -manifest man1.manifest man2.manifest -out:man3.manifest
>
> No colon (:) is required with the -manifest option.

When building with cmake, such command lines can be generated, such as this one when building cmake with cmake and clang:
```
/builds/worker/fetches/clang/bin/llvm-mt /nologo /manifest Source/CMakeFiles/cmcldeps.dir/intermediate.manifest /builds/worker/fetches/cmake/Source/cmake.version.manifest '/outputresource:bin/cmcldeps.exe;#1'
```
The command fails with:
```
llvm-mt: error: invalid option '/builds/worker/fetches/cmake/Source/cmake.version.manifest'
```
(this is not because it thinks it might be an option, as it begins with /, it fails the same way with relative paths)
</pre>
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