<html>
    <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 - llvm-config --link-shared --libs bitwriter produces errors with -DLLVM_BUILD_LLVM_DYLIB=ON"
   href="https://bugs.llvm.org/show_bug.cgi?id=34977">34977</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>llvm-config --link-shared --libs bitwriter produces errors with -DLLVM_BUILD_LLVM_DYLIB=ON
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>new-bugs
          </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>new bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>adf.lists@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Building git llvm like -

cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release
-DLLVM_TARGETS_TO_BUILD="host;AMDGPU" -DLLVM_ENABLE_ASSERTIONS=ON
-DLLVM_BUILD_LLVM_DYLIB=ON ..

Mesa will fail to build after a recent llvm detection change.
llvm-config result below seems to be the issue.

llvm-config --link-shared --libs bitwriter

llvm-config: error: missing: /usr/lib/libLLVMDemangle.so
llvm-config: error: missing: /usr/lib/libLLVMSupport.so
llvm-config: error: missing: /usr/lib/libLLVMBinaryFormat.so
llvm-config: error: missing: /usr/lib/libLLVMCore.so
llvm-config: error: missing: /usr/lib/libLLVMBitReader.so
llvm-config: error: missing: /usr/lib/libLLVMMC.so
llvm-config: error: missing: /usr/lib/libLLVMMCParser.so
llvm-config: error: missing: /usr/lib/libLLVMObject.so
llvm-config: error: missing: /usr/lib/libLLVMProfileData.so
llvm-config: error: missing: /usr/lib/libLLVMAnalysis.so
llvm-config: error: missing: /usr/lib/libLLVMBitWriter.so

Built with -DLLVM_LINK_LLVM_DYLIB=ON

The result is 

-lLLVM-6.0svn</pre>
        </div>
      </p>


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