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      <base href="https://llvm.org/bugs/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - can't build llvm (with libcxx) on ubuntu 14.04"
   href="https://llvm.org/bugs/show_bug.cgi?id=31291">31291</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>can't build llvm (with libcxx) on ubuntu 14.04
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Build scripts
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.9
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>cmake
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>akotulski@fb.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I'm having trouble compiling llvm with clang, compiler-rt and libcxx on ubuntu
14.04 (LTS, it's supported until 2019). I used default gcc-4.8.4 which should
be new enough to compile llvm. I used code from 3.9.1 branch

I'm getting bunch of linking errors related to C++ stdlib such as " undefined
reference to `__cxa_allocate_exception'" (see attached files for full output)

I tried passing -DCMAKE_SHARED_LINKER_FLAGS='-lstdc++' but it didn't help.

This is what I ran when creating those files:
cmake -G 'Unix Makefiles' ../llvm -DCMAKE_INSTALL_PREFIX=`pwd`/install
-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=Off -DLLVM_ENABLE_EH=On
-DLLVM_ENABLE_RTTI=On -DCMAKE_SHARED_LINKER_FLAGS='-lstdc++' && make all

It also fails with very similar/same errors when I ran without
DCMAKE_SHARED_LINKER_FLAGS flag:
cmake -G 'Unix Makefiles' ../llvm -DCMAKE_INSTALL_PREFIX=`pwd`/install
-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=Off -DLLVM_ENABLE_EH=On
-DLLVM_ENABLE_RTTI=On && make all</pre>
        </div>
      </p>
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          <li>You are on the CC list for the bug.</li>
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