Building fails with `builtin_llvm=OFF`: CommandLine Error: Option 'W' registered more than once!

[stephanlachnit]

• Checked for duplicates

Describe the bug

Building git master with #12154 on top results in the following build error:

FAILED: core/G__Core.cxx lib/Core.pcm /home/stephan/Projects/ROOT/builddir/core/G__Core.cxx /home/stephan/Projects/ROOT/builddir/lib/Core.pcm 
cd /home/stephan/Projects/ROOT/builddir/core && /usr/bin/cmake -E env LD_LIBRARY_PATH=/home/stephan/Projects/ROOT/builddir/lib: /home/stephan/Projects/ROOT/builddir/core/rootcling_stage1/src/rootcling_stage1 -v2 -f G__Core.cxx -cxxmodule -s /home/stephan/Projects/ROOT/builddir/lib/libCore.so -excludePath /home/stephan/Projects/ROOT -excludePath /home/stephan/Projects/ROOT/builddir/ginclude -excludePath /home/stephan/Projects/ROOT/builddir/externals -excludePath /home/stephan/Projects/ROOT/builddir/builtins -writeEmptyRootPCM -m _Builtin_intrinsics -mByproduct _Builtin_intrinsics -mByproduct ROOT_Foundation_Stage1_NoRTTI -mByproduct ROOT_Foundation_C -mByproduct ROOT_Rtypes -D__STDC_NO_COMPLEX__ -D__COMPLEX_H__ -D_COMPLEX_H -D__CLANG_STDATOMIC_H -compilerI/usr/include/c++/12 -compilerI/usr/include/x86_64-linux-gnu/c++/12 -compilerI/usr/include/c++/12/backward -compilerI/usr/lib/gcc/x86_64-linux-gnu/12/include -compilerI/usr/include/x86_64-linux-gnu -compilerI/usr/include -compilerI/usr/lib/gcc/x86_64-linux-gnu/12/include -compilerI/usr/include/x86_64-linux-gnu -compilerI/usr/include -I/home/stephan/Projects/ROOT/builddir/include -I/usr/include -I/home/stephan/Projects/ROOT/builddir/ginclude -I/home/stephan/Projects/ROOT/core/base/inc -I/home/stephan/Projects/ROOT/core/base/v7/inc -I/home/stephan/Projects/ROOT/core/clib/inc -I/home/stephan/Projects/ROOT/core/clingutils/inc -I/home/stephan/Projects/ROOT/core/clingutils/res -I/home/stephan/Projects/ROOT/core/cont/inc -I/home/stephan/Projects/ROOT/core/foundation/inc -I/home/stephan/Projects/ROOT/core/foundation/v7/inc -I/home/stephan/Projects/ROOT/core/foundation/res -I/home/stephan/Projects/ROOT/core/gui/inc -I/home/stephan/Projects/ROOT/core/meta/inc -I/home/stephan/Projects/ROOT/core/rint/inc -I/home/stephan/Projects/ROOT/core/textinput/inc -I/home/stephan/Projects/ROOT/core/textinput/src -I/home/stephan/Projects/ROOT/core/thread/inc -I/home/stephan/Projects/ROOT/core/zip/inc -I/home/stephan/Projects/ROOT/core/lzma/inc -I/usr/include -I/home/stephan/Projects/ROOT/core/lz4/inc -I/home/stephan/Projects/ROOT/core/zstd/inc -I/home/stephan/Projects/ROOT/core/unix/inc -I/home/stephan/Projects/ROOT/core/unix/../clib/res -I/home/stephan/Projects/ROOT/builtins/xxhash ROOT/TErrorDefaultHandler.hxx ROOT/TSequentialExecutor.hxx ROOT/StringConv.hxx Buttons.h Bytes.h Byteswap.h KeySymbols.h MessageTypes.h Riostream.h Rtypes.h TApplication.h TAtt3D.h TAttAxis.h TAttBBox2D.h TAttBBox.h TAttFill.h TAttLine.h TAttMarker.h TAttPad.h TAttText.h TBase64.h TBenchmark.h TBuffer3D.h TBuffer3DTypes.h TBuffer.h TColor.h TColorGradient.h TDatime.h TDirectory.h TEnv.h TException.h TExec.h TFileCollection.h TFileInfo.h TFolder.h TInetAddress.h TMacro.h TMathBase.h TMD5.h TMemberInspector.h TMessageHandler.h TNamed.h TNotifyLink.h TObject.h TObjString.h TParameter.h TPluginManager.h TPoint.h TPRegexp.h TProcessID.h TProcessUUID.h TQClass.h TQCommand.h TQConnection.h TQObject.h TRedirectOutputGuard.h TRefCnt.h TRef.h TRegexp.h TRemoteObject.h TROOT.h TRootIOCtor.h TStopwatch.h TStorage.h TString.h TStringLong.h TStyle.h TSysEvtHandler.h TSystemDirectory.h TSystemFile.h TSystem.h TTask.h TThreadSlots.h TTime.h TTimer.h TTimeStamp.h TUri.h TUrl.h TUUID.h TVersionCheck.h TVirtualAuth.h TVirtualFFT.h TVirtualGL.h TVirtualMonitoring.h TVirtualMutex.h TVirtualPadEditor.h TVirtualPad.h TVirtualPadPainter.h TVirtualPerfStats.h TVirtualPS.h TVirtualQConnection.h TVirtualRWMutex.h TVirtualTableInterface.h TVirtualViewer3D.h TVirtualX.h ROOT/RDirectoryEntry.hxx ROOT/RIndexIter.hxx strlcpy.h snprintf.h strtok.h root_std_complex.h ROOT/TSeq.hxx TArrayC.h TArrayD.h TArrayF.h TArray.h TArrayI.h TArrayL64.h TArrayL.h TArrayS.h TBits.h TBtree.h TClassTable.h TClonesArray.h TCollection.h TCollectionProxyInfo.h TExMap.h THashList.h THashTable.h TIterator.h TList.h TMap.h TObjArray.h TObjectTable.h TOrdCollection.h TRefArray.h TRefTable.h TSeqCollection.h TSortedList.h TVirtualCollectionProxy.h ESTLType.h RStringView.h TClassEdit.h TError.h ThreadLocalStorage.h ROOT/RLogger.hxx ROOT/RNotFn.hxx ROOT/RRangeCast.hxx ROOT/RSpan.hxx ROOT/RStringView.hxx ROOT/StringUtils.hxx ROOT/span.hxx ROOT/TypeTraits.hxx ROOT/RError.hxx GuiTypes.h TApplicationImp.h TBrowser.h TBrowserImp.h TCanvasImp.h TClassMenuItem.h TContextMenu.h TContextMenuImp.h TControlBarImp.h TGuiFactory.h TInspectorImp.h TObjectSpy.h TToggleGroup.h TToggle.h TBaseClass.h TClassGenerator.h TClass.h TClassRef.h TClassStreamer.h TDataMember.h TDataType.h TDictAttributeMap.h TDictionary.h TEnumConstant.h TEnum.h TFileMergeInfo.h TFunction.h TFunctionTemplate.h TGenericClassInfo.h TGlobal.h TInterpreter.h TInterpreterValue.h TIsAProxy.h TListOfDataMembers.h TListOfEnums.h TListOfEnumsWithLock.h TListOfFunctions.h TListOfFunctionTemplates.h TMemberStreamer.h TMethodArg.h TMethodCall.h TMethod.h TProtoClass.h TRealData.h TSchemaHelper.h TSchemaRule.h TSchemaRuleSet.h TStatusBitsChecker.h TStreamerElement.h TStreamer.h TVirtualIsAProxy.h TVirtualRefProxy.h TVirtualStreamerInfo.h TVirtualArray.h TVirtualObject.h Getline.h TUnixSystem.h /home/stephan/Projects/ROOT/core/base/inc/LinkDef.h
: CommandLine Error: Option 'W' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options

Expected behavior

Build does not fail.

To Reproduce

Building git master with #12154 and builtin_llvm=OFF libbsd=ON.

Setup

git master with #12154, 13.0.1-11+b2

Additional context

[stephanlachnit]

Actually looking at https://stackoverflow.com/questions/65509004/clang-llvm-multiple-version-issue this might be introduced from #12154, not sure.

[stephanlachnit]

Related:
root-project/cling#440
root-project/cling#430
root-project/cling#201

[stephanlachnit]

Backtrace for core/rootcling_stage1/src/rootcling_stage1:

: CommandLine Error: Option 'W' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options

Program received signal SIGABRT, Aborted.
__pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
44	./nptl/pthread_kill.c: No such file or directory.
(gdb) where
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
#1  0x00007ffff1ca9d2f in __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
#2  0x00007ffff1c5aef2 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#3  0x00007ffff1c45472 in __GI_abort () at ./stdlib/abort.c:79
#4  0x00007ffff2b39e7d in llvm::report_fatal_error(llvm::Twine const&, bool) () from /usr/lib/llvm-13/lib/libLLVM-13.so.1
#5  0x00007ffff2b39ca6 in llvm::report_fatal_error(char const*, bool) () from /usr/lib/llvm-13/lib/libLLVM-13.so.1
#6  0x00007ffff2b271f4 in ?? () from /usr/lib/llvm-13/lib/libLLVM-13.so.1
#7  0x00007ffff2b191eb in llvm::cl::Option::addArgument() () from /usr/lib/llvm-13/lib/libLLVM-13.so.1
#8  0x0000555555d0f50a in llvm::cl::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, llvm::cl::parser<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::list<char [2], llvm::cl::FormattingFlags, llvm::cl::NumOccurrencesFlag, llvm::cl::desc, llvm::cl::cat>(char const (&) [2], llvm::cl::FormattingFlags const&, llvm::cl::NumOccurrencesFlag const&, llvm::cl::desc const&, llvm::cl::cat const&) ()
#9  0x0000555555c780e0 in __static_initialization_and_destruction_0(int, int) [clone .constprop.0] ()
#10 0x00007ffff1c462b6 in call_init (env=<optimized out>, argv=0x7fffffffdd58, argc=1) at ../csu/libc-start.c:145
#11 __libc_start_main_impl (main=0x555555c78d70 <main>, argc=1, argv=0x7fffffffdd58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffdd48) at ../csu/libc-start.c:368
#12 0x0000555555c83de1 in _start ()
(gdb)

[veprbl]

I'm seeing the following on macOS:

[ 69%] Linking CXX executable src/rootcling_stage1
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoFixer>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoSynthesizer.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::AutoLoadingVisitor>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(AutoloadCallback.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::DumpLookupTables>::TraverseTemplateTemplateParmDecl(clang::TemplateTemplateParmDecl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(ClangInternalState.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<cling::(anonymous namespace)::StaticVarCollector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(DeclUnloader.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
ld: warning: direct access in function 'clang::RecursiveASTVisitor<(anonymous namespace)::PointerCheckInjector>::TraverseDecl(clang::Decl*)' from file '../../interpreter/llvm/src/lib/libclingInterpreter.a(NullDerefProtectionTransformer.cpp.o)' to global weak symbol 'guard variable for clang::TemplateTemplateParmDecl::getDefaultArgument() const::NoneLoc' from file '../dictgen/CMakeFiles/Dictgen.dir/src/DictSelectionReader.cxx.o' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.
[ 69%] Built target rootcling_stage1
[ 69%] Generating G__Core.cxx, ../lib/libCore.rootmap
: CommandLine Error: Option 'W' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
Subprocess aborted

Any thoughts, @vgvassilev ?