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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Option '-dN' is not honoer or passed on to preprocessor"
href="http://llvm.org/bugs/show_bug.cgi?id=15385">15385</a>
</td>
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<th>Summary</th>
<td>Option '-dN' is not honoer or passed on to preprocessor
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.1
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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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>
</tr>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>noloader@gmail.com
</td>
</tr>
<tr>
<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>$ uname -a
Linux ubuntu-12-x64 3.2.0-38-generic #61-Ubuntu SMP Tue Feb 19 12:18:21 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
$ clang --version
clang version 3.1 (branches/release_31)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Attempting to build uClibc with
make CC=clang CXX=clang++
results in:
clang: warning: argument unused during compilation: '-dN'
ERROR: Could not generate syscalls.
Make sure that you have proper kernel headers.
Your .config in KERNEL_HEADERS="" was set to:
/usr/src/linux-headers-3.2.0-38/include/
If I omit CC and CXX, make will use gcc and proceed (but fail at uClibc's
syscall hack). One problem at a time...
I'm very interested in using Clang for more projects due to its ehanced
warnings and static analysis capabilities, including Li and Regehr's IOC. (This
Clang was built with their patches at <a href="http://embed.cs.utah.edu/ioc/">http://embed.cs.utah.edu/ioc/</a>).
Should I be doing anything special to pass arguments to a preprocessor?</pre>
</div>
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