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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - "Clang - Getting Started" page says to use makefiles"
href="https://bugs.llvm.org/show_bug.cgi?id=44888">44888</a>
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<th>Summary</th>
<td>"Clang - Getting Started" page says to use makefiles
</td>
</tr>
<tr>
<th>Product</th>
<td>Documentation
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>General docs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>nbilling@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The instructions for building clang (on Linux) at
<a href="https://clang.llvm.org/get_started.html">https://clang.llvm.org/get_started.html</a> say to configure cmake with "cmake
-DLLVM_ENABLE_PROJECTS=clang -G "Unix Makefiles" ../llvm" and then to build
with "make".
This method of building is extremely slow compared with building with ninja. I
tried to follow these instructions naively and the build was so slow that,
after waiting about an hour it still self-reported about 12% progress. After
running "cmake -DLLVM_ENABLE_PROJECTS=clang -G Ninja ../llvm", and then
building with ninja, the entire build took at most 15 minutes.
Is it possible to at least describe both configurations so that readers don't
have to find and fix the issues with make on their own?</pre>
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