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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - regression: locally-built Clang can't find C++ stdlib headers on Mac"
href="https://bugs.llvm.org/show_bug.cgi?id=45880">45880</a>
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<th>Summary</th>
<td>regression: locally-built Clang can't find C++ stdlib headers on Mac
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>MacOS X
</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
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>sean@rogue-research.com
</td>
</tr>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=23468" name="attach_23468" title="patch">attachment 23468</a> <a href="attachment.cgi?id=23468&action=edit" title="patch">[details]</a></span>
patch
On macOS with Xcode:
- check out clang from git master
- build with Xcode's AppleClang as per <a href="https://clang.llvm.org/get_started.html">https://clang.llvm.org/get_started.html</a>
- use resulting build to compile a Hello World C++ program (anything that
#includes an STL header file)
Expected:
- for the STL header files that Xcode already provides to be found
Actual:
- compiler error, for example: "fatal error: 'string' file not found"
This used to work. I'm not sure when it broke, I think it was in the svn to
git switch.
It's been discussed on cfe-dev, I'm not alone in having this happen:
<a href="http://lists.llvm.org/pipermail/cfe-dev/2019-September/063394.html">http://lists.llvm.org/pipermail/cfe-dev/2019-September/063394.html</a>
List member Jens Jorgensen shared a patch, see attached. It works for me, but
I have no idea if it's fit to commit.</pre>
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