<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 --- - clang doesn't switch to c++ compiling mode when the executable has a number prefix just after ++"
   href="http://llvm.org/bugs/show_bug.cgi?id=21094">21094</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang doesn't switch to c++ compiling mode when the executable has a number prefix just after ++
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>Driver
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>fuscated@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=13096" name="attach_13096" title="linking failure">attachment 13096</a> <a href="attachment.cgi?id=13096&action=edit" title="linking failure">[details]</a></span>
linking failure

I have llvm 3.5 installed from source in /opt/llvm35
I've made symlinks to the binaries in /usr/bin

They look like this:

$ ls -l /usr/bin/ | grep clang
clang35 -> /opt/llvm35/bin/clang
clang++35 -> /opt/llvm35/bin/clang++

Then if I compile a simple c++ program, the clang compiler fails to link it.
See the attachment for the build log.

If I rename the clang++ symlink to either clang++ or clang++-3.5 it works fine</pre>
        </div>
      </p>
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