<html>
    <head>
      <base href="http://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 --- - When configparser-3.2.0 is installed, LLVM-3.4 won't compile"
   href="http://llvm.org/bugs/show_bug.cgi?id=19154">19154</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>When configparser-3.2.0 is installed, LLVM-3.4 won't compile
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>3.4
          </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>new bugs
          </td>
        </tr>

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

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

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=12235" name="attach_12235" title="A build-log, showing the build failure.">attachment 12235</a> <a href="attachment.cgi?id=12235&action=edit" title="A build-log, showing the build failure.">[details]</a></span>
A build-log, showing the build failure.

The package configparser is a backport of python3's ConfigParser to python2.
When version 3.2.0 is installed, LLVM-3.4 fails to build, because the parsing
of LLVMBuild.txt files fails. The user visible error is LLVM not being able to
find a target to build (can be seen in attached log).

When version 3.3 of configparser is installed, or configparser is not installed
at all, LLVM-3.4 compiles without error. Either the build system should ensure
version 3.2 is not installed, or whatever issue is causing this should be
fixed. I'm unsure of how, or why configparser-3.2 causes the parsing issue.
This was not an issue in llvm-3.3, because ConfigParser (built-in to python)
was always used.

Some more details are provided at a gentoo bug report,
<a href="https://bugs.gentoo.org/show_bug.cgi?id=500856">https://bugs.gentoo.org/show_bug.cgi?id=500856</a></pre>
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