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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Undefined reference when I link libc++"
   href="https://bugs.llvm.org/show_bug.cgi?id=41214">41214</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Undefined reference when I link libc++
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>All Bugs
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>praveenvelliengiri@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hi,

When I compile this example
[<a href="https://reviews.llvm.org/diffusion/L/browse/llvm/trunk/examples/HowToUseJIT/HowToUseJIT.cpp">https://reviews.llvm.org/diffusion/L/browse/llvm/trunk/examples/HowToUseJIT/HowToUseJIT.cpp</a>
]from the trunk, the linking fails.

Command used to compile : 

clang++ -stdlib=libc++ -fuse-ld=lld  howto.cpp `llvm-config --cxxflags
--ldflags --libs`

the linker throws up 

ld.lld: error: undefined symbol:
llvm::EngineBuilder::EngineBuilder(std::__1::unique_ptr<llvm::Module,
std::__1::default_delete<llvm::Module> >)


But when I link libstdc++ instead of libc++, error was gone. 

Is this a known bug? 

Is there any workaround for this? 

My clang++ -v shows:
clang version 9.0.0,
Target: x86_64-unknown-linux-gnu.</pre>
        </div>
      </p>


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