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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - "CommandLine Error: Option 'filter' registered more than once!" crash on startup in applications using libclang"
href="https://bugs.llvm.org/show_bug.cgi?id=47117">47117</a>
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<th>Summary</th>
<td>"CommandLine Error: Option 'filter' registered more than once!" crash on startup in applications using libclang
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>11.0
</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>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>libclang
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>bero@lindev.ch
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<th>CC</th>
<td>klimek@google.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>Several applications that use (dynamically linked) libclang crash on startup
with libclang 11-rc1, including doxygen and the Qt6 version of lupdate.
$ ./bin/doxygen
: CommandLine Error: Option 'filter' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
Aborted (core dumped)
Doxygen isn't doing anything funny like mixing shared and static libraries.
The crash seems to happen in a global constructor in libclang, before even
doxygen's main() is called.
#0 0x00007ffff3dd386f in raise () from /lib64/libc.so.6
#1 0x00007ffff3db9538 in abort () from /lib64/libc.so.6
#2 0x00007fffedc4cb39 in llvm::report_fatal_error(llvm::Twine const&, bool) ()
from /usr/lib64/libLLVMSupport.so.11.0
#3 0x00007fffedc4c978 in llvm::report_fatal_error(char const*, bool) () from
/usr/lib64/libLLVMSupport.so.11.0
#4 0x00007fffedc32904 in ?? () from /usr/lib64/libLLVMSupport.so.11.0
#5 0x00007fffedc24044 in ?? () from /usr/lib64/libLLVMSupport.so.11.0
#6 0x00007fffedc2207d in llvm::cl::Option::addArgument() () from
/usr/lib64/libLLVMSupport.so.11.0
#7 0x00007ffff76ff910 in ?? () from /usr/lib64/libclang-cpp.so.11.0
#8 0x00007ffff7702da6 in ?? () from /usr/lib64/libclang-cpp.so.11.0
#9 0x00007ffff7fe1f0e in call_init () from /lib64/ld-linux-x86-64.so.2
#10 0x00007ffff7fe1fec in _dl_init () from /lib64/ld-linux-x86-64.so.2
#11 0x00007ffff7fd20ca in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#12 0x0000000000000001 in ?? ()
#13 0x00007fffffffd8db in ?? ()
#14 0x0000000000000000 in ?? ()</pre>
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