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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Enum constants defined in Support/MachO.h conflict with system header"
href="https://llvm.org/bugs/show_bug.cgi?id=25871">25871</a>
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<th>Summary</th>
<td>Enum constants defined in Support/MachO.h conflict with system header
</td>
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<th>Product</th>
<td>libraries
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<th>Version</th>
<td>3.7
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>MacOS X
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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>Support Libraries
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>dan@danburkert.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>The OS X mach-o/loader.h system header defines a set of constants as macros,
and the LLVM Support/MachO.h header redefines those constants as enum variants
(MH_MAGIC is one example). The result is that in applications that import both
headers, the enum identifier in Support/MachO.h is replaced with the value, and
compilation fails.
OS X system header:
<a href="https://opensource.apple.com/source/xnu/xnu-1456.1.26/EXTERNAL_HEADERS/mach-o/loader.h">https://opensource.apple.com/source/xnu/xnu-1456.1.26/EXTERNAL_HEADERS/mach-o/loader.h</a>
LLVM header:
<a href="https://github.com/llvm-mirror/llvm/blob/856a0380260e2735f51b059822674bd47961c050/include/llvm/Support/MachO.h#L24-L80">https://github.com/llvm-mirror/llvm/blob/856a0380260e2735f51b059822674bd47961c050/include/llvm/Support/MachO.h#L24-L80</a></pre>
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