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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 Analyzer plugin examples always included in LLVMExports.cmake"
href="https://bugs.llvm.org/show_bug.cgi?id=43430">43430</a>
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<th>Summary</th>
<td>Clang Analyzer plugin examples always included in LLVMExports.cmake
</td>
</tr>
<tr>
<th>Product</th>
<td>Build scripts
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<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>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>cmake
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>lepesme.jb@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The clang Analysis plugin examples (in clang/lib/Analysis/plugins) are always
built and installed even if CLANG_BUILD_EXAMPLES is OFF.
When using llvm-toolchain-bionic in <a href="http://apt.llvm.org/bionic/">http://apt.llvm.org/bionic/</a> the package
llvm-10-dev includes a LLVMExports.cmake which includes thus samples. See
/data/user/lib/llvm-10/lib/cmake/llvm/LLVMExports.cmake in
<a href="http://apt.llvm.org/bionic/pool/main/l/llvm-toolchain-snapshot/llvm-10-dev_10~svn372305-1~exp1%2b0~20190919071908.1206~1.gbp6f40e3_amd64.deb">http://apt.llvm.org/bionic/pool/main/l/llvm-toolchain-snapshot/llvm-10-dev_10~svn372305-1~exp1%2b0~20190919071908.1206~1.gbp6f40e3_amd64.deb</a>
When trying to use LLVM-10 from travis (with this config
<a href="https://github.com/Jiboo/wembed/blob/54e9664d615313f39e1a4325c1e7f028ce2b72db/.travis.yml">https://github.com/Jiboo/wembed/blob/54e9664d615313f39e1a4325c1e7f028ce2b72db/.travis.yml</a>),
I got the error:
CMake Error at /usr/lib/llvm-10/lib/cmake/llvm/LLVMExports.cmake:1341
(message):
The imported target "SampleAnalyzerPlugin" references the file
"/usr/lib/llvm-10/lib/SampleAnalyzerPlugin.so"
but this file does not exist. Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
"/usr/lib/llvm-10/lib/cmake/llvm/LLVMExports.cmake"
but not all the files it references.
I couldn't find SampleAnalyzerPlugin.so in any other packages
(clang-10-examples only has sources), so I tried to replicate the problem
locally, CLANG_BUILD_EXAMPLES was OFF, although the sample plugins were built
and installed. Deleting /usr/local/lib/SampleAnalyzerPlugin.so replicated the
travis error.
I proposed a fix here <a href="https://reviews.llvm.org/D67877">https://reviews.llvm.org/D67877</a>.
This fix looks ok to me, although I'm no CMake expert, particularly in LLVM
context, and I might cure a symptom and not the cause, but with this patch if
CLANG_BUILD_EXAMPLES is OFF, they don't appear in LLVMExports.cmake are not
build/installed, and vice-versa if it's ON.</pre>
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