[GitHub] [incubator-brpc] ruoshui1314 edited a comment on issue #1159: fail to build example `echo_c++` and report `Undefined symbols for architecture x86_64:`

[GitBox <gi...@apache.org>]

ruoshui1314 edited a comment on issue #1159:
URL: https://github.com/apache/incubator-brpc/issues/1159#issuecomment-657433936


   update:
   It could be builded successfully when using master branch.
   The command is:
   `sh config_brpc.sh --headers="/xxx/local/include /usr/local/include" --libs="/xxx/local/lib /usr/local/lib /xxx/local/bin" --cc=clang --cxx=clang++
   `
   and building example is correct.
   
   
   but fail to build 0.9.7 brpc library.
   The detail errors :
   
   
   Linking protoc-gen-mcpack
   Undefined symbols for architecture x86_64:
     "fLI::FLAGS_v", referenced from:
         bthread::ContentionProfiler::flush_to_disk(bool) in libbrpc.a(mutex.o)
         bthread::TaskControl::worker_thread(void*) in libbrpc.a(task_control.o)
         bthread::TimerThread::run() in libbrpc.a(timer_thread.o)
     "google::LogMessage::stream()", referenced from:
         mcpack2pb::generate_serializing(google::protobuf::Descriptor const*, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, std::__1::set<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, google::protobuf::io::Printer&) in generator.o
         mcpack2pb::is_map_entry(google::protobuf::Descriptor const*) in generator.o
         bthread::ContentionProfiler::flush_to_disk(bool) in libbrpc.a(mutex.o)
         bthread::ContentionProfiler::init_if_needed() in libbrpc.a(mutex.o)
         butil::FlatMap<bthread::SampledContention*, bthread::SampledContention*, bthread::ContentionHash, bthread::ContentionEqual, false>::init(unsigned long, unsigned int) in libbrpc.a(mutex.o)
         bthread::ContentionProfilerStart(char const*) in libbrpc.a(mutex.o)
         bthread::ContentionProfilerStop() in libbrpc.a(mutex.o)
   


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