<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 - Defective out-of-tree builds with LLVM_LINK_LLVM_DYLIB=ON"
   href="https://bugs.llvm.org/show_bug.cgi?id=36687">36687</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Defective out-of-tree builds with LLVM_LINK_LLVM_DYLIB=ON
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>lldb
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>6.0
          </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>normal
          </td>
        </tr>

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

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

        <tr>
          <th>Assignee</th>
          <td>lldb-dev@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>evangelos@foutrelis.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>(mostly copy pasting from <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - lldb-server broken when LLVM_LINK_LLVM_DYLIB=ON"
   href="show_bug.cgi?id=28127">bug 28127</a>)

Either this issue has regressed in LLDB 6.0.0 or the LLVM package I pushed to
Arch Linux is buggy.

I'm doing an out-of-tree build of LLDB 6.0.0 with LLVM_LINK_LLVM_DYLIB=ON. The
resulting lldb-{server,test} binaries link to both libLLVMSupport.a and
libLLVM-6.0.so and result in the following runtime errors:

=========================
$ lldb-server 
: CommandLine Error: Option 'disable-symbolication' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options

$ lldb-test 
: CommandLine Error: Option 'help-list' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
=========================

I'm unable to reproduce the issue on Fedora Rawhide, but I believe that has to
do with the fact that Fedora's libLLVM-6.0.so links statically to libstdc++
(not sure why this has any effect on this problem though). If I build my LLVM
package with static libstdc++ like Fedora does
(-DCMAKE_SHARED_LINKER_FLAGS="-Wl,-Bsymbolic -static-libstdc++") then
lldb-{server,test} run fine.

Debian's lldb-6.0 package seems to work correctly, but a custom out-of-tree
build of LLDB 6.0.0 on Debian testing (against llvm-6.0) showed the same
problem. (Perhaps it matters whether it's an in-tree build?)

For now I've resorted to removing all references to /usr/lib/libLLVMSupport.a
from the generated build.ninja file. This seems to allow the above tools to
run.</pre>
        </div>
      </p>


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