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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - llvm/support/MathExtras.h compile error when compiling with strict #if variable defined checking"
href="http://llvm.org/bugs/show_bug.cgi?id=18940">18940</a>
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<th>Summary</th>
<td>llvm/support/MathExtras.h compile error when compiling with strict #if variable defined checking
</td>
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<th>Product</th>
<td>libraries
</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
</td>
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<th>Component</th>
<td>Support Libraries
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>morten.brodersen@contecint.com.au
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Note: This is a bug for LLVM 3.4 not trunk. 3.4 can not be selected in the
bugzilla version widget.
llvm/support/MathExtras.h use the following pattern:
#if _MSC_VER
instead of (for example)
#if (defined(_MSC_VER) && _MSC_VER)
resulting in MathExtras.h not compiling with strict "preprocessor variables are
defined" checking.
Changing:
#if _MSC_VER
to:
#if (defined(_MSC_VER) && _MSC_VER)
fixes the problem.</pre>
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