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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang: building cross compiler for Mac results in incorrect Darwin kernel version"
href="http://llvm.org/bugs/show_bug.cgi?id=19945">19945</a>
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<th>Summary</th>
<td>clang: building cross compiler for Mac results in incorrect Darwin kernel version
</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
</td>
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>inkscapebrony@gmail.com
</td>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>I'm building a cross-compiling toolchain for OS X. This sounds ridiculous, but
I'm on an iMac that can no longer run OS X. It can only boot Linux, and I can't
use any "good" GPU functionality as it immediately corrupts the screen.
nomodeset it stays.
I configured llvm in my chroot like this:
../configure --prefix=/usr/clang_3_4 --enable-optimized
--enable-targets=x86_64,x86 --disable-compiler-version-checks
--host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu
--target=x86_64-apple-darwin11.4.0
Whenever I run clang, I get this message:
# /usr/clang_3_4/bin/x86_64-apple-darwin11.4.2-clang++
x86_64-apple-darwin11.4.0-clang: error: invalid Darwin version number:
darwin3.13.0
x86_64-apple-darwin11.4.0-clang: error: invalid version number in
'-mmacosx-version-min=3.13.0'
Darwin version number? Let's check uname:
# uname -a
Linux liam-iMac 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
"3.13.0" is the important part there. It perfectly matches my kernel version.
Output from uname on a real Mac machine might be something like
# uname -a
Darwin liams-mac-pro.home 11.4.0 Darwin Kernel Version 11.4.0: Mon Apr 9
19:32:15 PDT 2014; root:xnu-1699.26.8~1/RELEASE_X86_64 x86_64
Here is a (somewhat) related MacPorts bug which also affects me:
<a href="https://trac.macports.org/ticket/42291">https://trac.macports.org/ticket/42291</a></pre>
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