Build ccls error "ld: library not found for -lc++experimental"

[zhongweiy]

Hi, there,
I get the following error on Mac 10.13.5:
ld: library not found for -lc++experimental

commands to reproduce:

$git clone https://github.com/MaskRay/ccls.git
$cd ccls && mkdir build && cd build
$cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DCLANG_USE_BUNDLED_LIBC++=on -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_CXX_LINK_FLAGS=-fuse-ld=lld ..
$make -j
...
[100%] Linking CXX executable ccls
ld: library not found for -lc++experimental
clang-6.0: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [ccls] Error 1
make[2]: *** [CMakeFiles/ccls.dir/all] Error 2
make[1]: *** [CMakeFiles/ccls.dir/rule] Error 2
make: *** [ccls] Error 2

And the invocation of clang++ is:

/Users/john/projects/ccls/build/clang+llvm-6.0.0-x86_64-apple-darwin/bin/clang++  -O3 -DNDEBUG -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/ccls.dir/third_party/siphash.cc.o CMakeFiles/ccls.dir/src/clang_complete.cc.o CMakeFiles/ccls.dir/src/clang_tu.cc.o CMakeFiles/ccls.dir/src/clang_utils.cc.o CMakeFiles/ccls.dir/src/config.cc.o CMakeFiles/ccls.dir/src/file_consumer.cc.o CMakeFiles/ccls.dir/src/filesystem.cc.o CMakeFiles/ccls.dir/src/fuzzy_match.cc.o CMakeFiles/ccls.dir/src/main.cc.o CMakeFiles/ccls.dir/src/include_complete.cc.o CMakeFiles/ccls.dir/src/indexer.cc.o CMakeFiles/ccls.dir/src/method.cc.o CMakeFiles/ccls.dir/src/language.cc.o CMakeFiles/ccls.dir/src/log.cc.o CMakeFiles/ccls.dir/src/lsp.cc.o CMakeFiles/ccls.dir/src/match.cc.o CMakeFiles/ccls.dir/src/message_handler.cc.o CMakeFiles/ccls.dir/src/pipeline.cc.o CMakeFiles/ccls.dir/src/platform_posix.cc.o CMakeFiles/ccls.dir/src/platform_win.cc.o CMakeFiles/ccls.dir/src/position.cc.o CMakeFiles/ccls.dir/src/project.cc.o CMakeFiles/ccls.dir/src/query_utils.cc.o CMakeFiles/ccls.dir/src/query.cc.o CMakeFiles/ccls.dir/src/serializer.cc.o CMakeFiles/ccls.dir/src/test.cc.o CMakeFiles/ccls.dir/src/third_party_impl.cc.o CMakeFiles/ccls.dir/src/utils.cc.o CMakeFiles/ccls.dir/src/working_files.cc.o CMakeFiles/ccls.dir/src/messages/ccls_base.cc.o CMakeFiles/ccls.dir/src/messages/ccls_callHierarchy.cc.o CMakeFiles/ccls.dir/src/messages/ccls_callers.cc.o CMakeFiles/ccls.dir/src/messages/ccls_fileInfo.cc.o CMakeFiles/ccls.dir/src/messages/ccls_freshenIndex.cc.o CMakeFiles/ccls.dir/src/messages/ccls_inheritanceHierarchy.cc.o CMakeFiles/ccls.dir/src/messages/ccls_memberHierarchy.cc.o CMakeFiles/ccls.dir/src/messages/ccls_vars.cc.o CMakeFiles/ccls.dir/src/messages/exit.cc.o CMakeFiles/ccls.dir/src/messages/initialize.cc.o CMakeFiles/ccls.dir/src/messages/shutdown.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_codeLens.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_completion.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_definition.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didChange.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didClose.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didOpen.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didSave.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_documentHighlight.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_documentSymbol.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_hover.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_implementation.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_references.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_rename.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_signatureHelp.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_typeDefinition.cc.o CMakeFiles/ccls.dir/src/messages/workspace_didChangeConfiguration.cc.o CMakeFiles/ccls.dir/src/messages/workspace_didChangeWatchedFiles.cc.o CMakeFiles/ccls.dir/src/messages/workspace_symbol.cc.o  -o ccls -Wl,-rpath,/Users/john/projects/ccls/build/clang+llvm-6.0.0-x86_64-apple-darwin/lib clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclang.dylib -lc++experimental clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangFrontend.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangParse.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangSerialization.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangSema.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangAnalysis.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangEdit.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangAST.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangLex.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangDriver.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangBasic.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMMCParser.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMMC.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMBitReader.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMOption.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMProfileData.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMCore.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMBinaryFormat.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMSupport.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMDemangle.a /usr/lib/libcurses.dylib /usr/lib/libform.dylib /usr/lib/libz.dylib

And add -L/Users/john/projects/ccls/build/clang+llvm-6.0.0-x86_64-apple-darwin/lib to above command can solve the issue.

The modified command is:

/Users/john/projects/ccls/build/clang+llvm-6.0.0-x86_64-apple-darwin/bin/clang++  -O3 -DNDEBUG -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/ccls.dir/third_party/siphash.cc.o CMakeFiles/ccls.dir/src/clang_complete.cc.o CMakeFiles/ccls.dir/src/clang_tu.cc.o CMakeFiles/ccls.dir/src/clang_utils.cc.o CMakeFiles/ccls.dir/src/config.cc.o CMakeFiles/ccls.dir/src/file_consumer.cc.o CMakeFiles/ccls.dir/src/filesystem.cc.o CMakeFiles/ccls.dir/src/fuzzy_match.cc.o CMakeFiles/ccls.dir/src/main.cc.o CMakeFiles/ccls.dir/src/include_complete.cc.o CMakeFiles/ccls.dir/src/indexer.cc.o CMakeFiles/ccls.dir/src/method.cc.o CMakeFiles/ccls.dir/src/language.cc.o CMakeFiles/ccls.dir/src/log.cc.o CMakeFiles/ccls.dir/src/lsp.cc.o CMakeFiles/ccls.dir/src/match.cc.o CMakeFiles/ccls.dir/src/message_handler.cc.o CMakeFiles/ccls.dir/src/pipeline.cc.o CMakeFiles/ccls.dir/src/platform_posix.cc.o CMakeFiles/ccls.dir/src/platform_win.cc.o CMakeFiles/ccls.dir/src/position.cc.o CMakeFiles/ccls.dir/src/project.cc.o CMakeFiles/ccls.dir/src/query_utils.cc.o CMakeFiles/ccls.dir/src/query.cc.o CMakeFiles/ccls.dir/src/serializer.cc.o CMakeFiles/ccls.dir/src/test.cc.o CMakeFiles/ccls.dir/src/third_party_impl.cc.o CMakeFiles/ccls.dir/src/utils.cc.o CMakeFiles/ccls.dir/src/working_files.cc.o CMakeFiles/ccls.dir/src/messages/ccls_base.cc.o CMakeFiles/ccls.dir/src/messages/ccls_callHierarchy.cc.o CMakeFiles/ccls.dir/src/messages/ccls_callers.cc.o CMakeFiles/ccls.dir/src/messages/ccls_fileInfo.cc.o CMakeFiles/ccls.dir/src/messages/ccls_freshenIndex.cc.o CMakeFiles/ccls.dir/src/messages/ccls_inheritanceHierarchy.cc.o CMakeFiles/ccls.dir/src/messages/ccls_memberHierarchy.cc.o CMakeFiles/ccls.dir/src/messages/ccls_vars.cc.o CMakeFiles/ccls.dir/src/messages/exit.cc.o CMakeFiles/ccls.dir/src/messages/initialize.cc.o CMakeFiles/ccls.dir/src/messages/shutdown.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_codeLens.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_completion.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_definition.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didChange.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didClose.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didOpen.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_didSave.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_documentHighlight.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_documentSymbol.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_hover.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_implementation.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_references.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_rename.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_signatureHelp.cc.o CMakeFiles/ccls.dir/src/messages/textDocument_typeDefinition.cc.o CMakeFiles/ccls.dir/src/messages/workspace_didChangeConfiguration.cc.o CMakeFiles/ccls.dir/src/messages/workspace_didChangeWatchedFiles.cc.o CMakeFiles/ccls.dir/src/messages/workspace_symbol.cc.o  -o ccls -Wl,-v -Wl,-rpath,/Users/john/projects/ccls/build/clang+llvm-6.0.0-x86_64-apple-darwin/lib -L/Users/john/projects/ccls/build/clang+llvm-6.0.0-x86_64-apple-darwin/lib clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclang.dylib -lc++experimental clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangFrontend.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangParse.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangSerialization.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangSema.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangAnalysis.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangEdit.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangAST.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangLex.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangDriver.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libclangBasic.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMMCParser.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMMC.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMBitReader.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMOption.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMProfileData.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMCore.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMBinaryFormat.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMSupport.a clang+llvm-6.0.0-x86_64-apple-darwin/lib/libLLVMDemangle.a /usr/lib/libcurses.dylib /usr/lib/libform.dylib /usr/lib/libz.dylib

[MaskRay]

Thanks for reporting this issue (I don't use Mac OS X so cannot test it). See #28 (comment) I think this is fixed now

[zhongweiy]

Thanks!