<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </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 --- - using unsupported flags for ld on osx"
   href="https://llvm.org/bugs/show_bug.cgi?id=31919">31919</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>using unsupported flags for ld on osx
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>MacOS X
          </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>ralph_kube@gmx.net
          </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>Trying to compile clang from svn, revision 294583.

# cd ~/local/llvm_build
# cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/Users/ralph/local 
DCMAKE_BUILD_TYPE=release ../llvm
# make -j4

Compilation stops with 

[ 10%] Linking CXX shared library ../../../lib/libomptarget.dylib
ld: warning: directory not found for option '-L/opt/local/lib:'
ld: unknown option:
--version-script=/Users/ralph/local/src/llvm/projects/openmp/libomptarget/exports
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [lib/libomptarget.dylib] Error 1
make[1]: *** [projects/openmp/libomptarget/CMakeFiles/omptarget.dir/all] Error
2
make[1]: *** Waiting for unfinished jobs....

According to google and man ld, the osx version does not support
--version-script.</pre>
        </div>
      </p>
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