<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 --- - libxml2 cache entries pass test when invalid"
   href="http://llvm.org/bugs/show_bug.cgi?id=19525">19525</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>libxml2 cache entries pass test when invalid
          </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>Linux
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>release blocker
          </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>emanuelecestari@yahoo.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>When building with all the 5 repos + lldb I noticed that if I set the cache
entries 

[ code ]
LIBXML2_INCLUDE_DIR:PATH="/opt/lib64/libxml2/2.9.1/include/libxml2"
LIBXML2_LIBRARIES:PATH="/opt/lib64/libxml2/2.9.1/lib"
LIBXML2_XMLLINT_EXECUTABLE:FILEPATH="/opt/lib64/libxml2/2.9.1/bin/xmllint"
[ /code ]

the cmake test for libxml2 is ok but the target c-index-test it's being dropped
even if cmake itself says that the target can only link to a "real" library

[ code ]
WARNING: Target "c-index-test" requests linking to directory
"/opt/lib64/libxml2/2.9.1/lib".  Targets may link only to libraries.  CMake is
dropping the item.

[ /code ]

So there is clearly something wrong with the test for libxml2 and it's probably
something inside the lldb repository since this project requires libxml2
explicitly. Of course with

[ code ]
LIBXML2_INCLUDE_DIR:PATH="/opt/lib64/libxml2/2.9.1/include/libxml2"
LIBXML2_LIBRARIES:PATH="/opt/lib64/libxml2/2.9.1/lib/libxml2.so"
LIBXML2_XMLLINT_EXECUTABLE:FILEPATH="/opt/lib64/libxml2/2.9.1/bin/xmllint"

[ /code ]

Everything is ok and cmake says "the test is passed and c-index-test is being
kept" but this is to prove that the "cmake test" for this library serves no
purpose at all.

-----

this is about the r206684 from the svn trunk, I also posted my configuration
and softwares used in a dedicated discussion on llvm-dev here
<a href="http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-April/072312.html">http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-April/072312.html</a></pre>
        </div>
      </p>
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