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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - Bootstrapping clang fails because of emmintrin.h" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23935&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=4c2ddWZcouz0L-wz3t1X7I_etNkkMKNyalH8BLPwy1g&s=J7cAMCtyvnJWW296nfMZF5y2V8neSq9oTWIwDmlD-v4&e=">23935</a>
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<th>Summary</th>
<td>Bootstrapping clang fails because of emmintrin.h
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>-New Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>bero@linaro.org
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14512" name="attach_14512" title="fix">attachment 14512</a> <a href="attachment.cgi?id=14512&action=edit" title="fix">[details]</a></span>
fix
When using cmake to bootstrap clang (crosscompiling the entire
llvm+clang+libc++ combo), the build fails because various files in (at least)
tools/clang/lib/Base and tools/clang/lib/Lex try to #include <emmintrin.h>,
which is part of clang and therefore doesn't exist in the target sysroot yet.
The patch I'm attaching fixes the problem for me by making clang look for
headers in its source directory.</pre>
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