<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 - malformed or corrupted AST file"
   href="https://bugs.llvm.org/show_bug.cgi?id=41589">41589</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>malformed or corrupted AST file
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>8.0
          </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>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>marin.baron.pro@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=21821" name="attach_21821" title="Logs">attachment 21821</a> <a href="attachment.cgi?id=21821&action=edit" title="Logs">[details]</a></span>
Logs

Step 1 - build with gcc
CXX=gcc cmake && make

Step 2 - build with clang (at the same output)
CXX=clang cmake && make

I have the impression that when precompiled headers of gcc are given to clang,
clang panics.
I don't really know if :
  - it needs bug report
  - it's to build system to clean after compiler change...
  - the compiler should check the precompiled headers and exit more elegantly.

~  find /usr/ -name climits
/usr/lib/gcc/x86_64-pc-linux-gnu/7.4.1/include/c++/climits
/usr/lib/gcc/x86_64-pc-linux-gnu/7.4.1/include/c++/tr1/climits
/usr/include/c++/8.3.0/climits
/usr/include/c++/8.3.0/tr1/climits
/usr/include/boost/compatibility/cpp_c_headers/climits

~  gcc --version
gcc (GCC) 8.3.0
Copyright © 2018 Free Software Foundation, Inc.
Ce logiciel est un logiciel libre; voir les sources pour les conditions de
copie.  Il n'y a
AUCUNE GARANTIE, pas même pour la COMMERCIALISATION ni L'ADÉQUATION À UNE TÂCHE
PARTICULIÈRE.

~  clang --version
clang version 8.0.0 (tags/RELEASE_800/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin</pre>
        </div>
      </p>


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