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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Short 8.3 paths make clang++ run in C mode, linking without C++ libraries"
href="https://llvm.org/bugs/show_bug.cgi?id=28089">28089</a>
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<th>Summary</th>
<td>Short 8.3 paths make clang++ run in C mode, linking without C++ libraries
</td>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.8
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Driver
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jibz-llvmbugs@stdip.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Clang decides if it is being invoked as a C or C++ compiler based on its
filename.
When installed as `C:\Program Files\LLVM\bin\clang++.exe` on Windows,
the space in the path results in some build systems invoking it with the
short 8.3 path `C:\PROGRA~1\LLVM\bin\CLANG_~1.EXE`, and failing to link
because clang++ thinks it is clang and does not include the C++ libraries.
One example is CMake: <a href="https://gitlab.kitware.com/cmake/cmake/issues/16138">https://gitlab.kitware.com/cmake/cmake/issues/16138</a></pre>
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</p>
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