库编译正常但使用时出现大量undefined reference to错误

[rhino-li]

环境

ubuntu 20.04
c++11
muduo 2.0.2
cmake 3.16.3
gcc 9.4.0
libboost-dev 1.17.0
protobuf 3.6.1

测试程序

examples中的echo示例

#include <iostream>
#include <functional>
#include <muduo/net/InetAddress.h>
#include <muduo/net/Buffer.h>
#include <muduo/net/TcpConnection.h>
#include <muduo/net/TcpServer.h>
#include <muduo/net/EventLoop.h>

using std::placeholders::_1;
using std::placeholders::_2;
using std::placeholders::_3;
// RFC 862
class EchoServer
{
    public:
    EchoServer(muduo::net::EventLoop* loop,
             const muduo::net::InetAddress& listenAddr)
             : server_(loop, listenAddr, "EchoServer")
             {
                server_.setConnectionCallback(
                    std::bind(&EchoServer::onConnection, this, _1));
                    server_.setMessageCallback(
                    std::bind(&EchoServer::onMessage, this, _1, _2, _3));
             };

    void start()
    {
        server_.start();
    }

 private:
    void onConnection(const muduo::net::TcpConnectionPtr& conn)
    {
  std::cout << "EchoServer - " << conn->peerAddress().toIpPort() << " -> "
           << conn->localAddress().toIpPort() << " is "
           << (conn->connected() ? "UP" : "DOWN");
    }

    void onMessage(const muduo::net::TcpConnectionPtr& conn,
                 muduo::net::Buffer* buf,
                 muduo::Timestamp time)
                {
                    muduo::string msg(buf->retrieveAllAsString());
                    std::cout << conn->name() << " echo " << msg.size() << " bytes, "
                        << "data received at " << time.toString();
                    conn->send(msg);
                }
    muduo::net::TcpServer server_;
};

int main()
{
  muduo::net::EventLoop loop;
  muduo::net::InetAddress listenAddr(2007);
  EchoServer server(&loop, listenAddr);
  server.start();
  loop.loop();
}

报错

g++ test.cpp -lmuduo_base -lmuduo_net -lpthread编译报错：

/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::handleRead()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:250: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:250: undefined reference to `muduo::LogStream::operator<<(long)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:250: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::~EventLoop()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:95: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:95: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:95: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:95: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::~EventLoop()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:96: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:95: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::abortNotInLoopThread()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:229: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:229: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:230: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::abortNotInLoopThread()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:231: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:229: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::wakeup()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:240: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:240: undefined reference to `muduo::LogStream::operator<<(long)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:240: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::printActiveChannels() const':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:275: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:275: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:275: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::EventLoop()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:77: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:80: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:80: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:81: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:80: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:77: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:77: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:77: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:77: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::EventLoop()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:38: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `createEventfd':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:38: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::loop()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:109: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:116: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:132: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:109: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:109: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:109: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:132: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:132: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/EventLoop.cc:132: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::handleRead()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:250: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::abortNotInLoopThread()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:229: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::wakeup()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:240: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::printActiveChannels() const':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:275: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o): in function `muduo::net::EventLoop::EventLoop()':
/home/lxr/installation/muduo/muduo/net/EventLoop.cc:77: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoop.cc.o):/home/lxr/installation/muduo/muduo/net/EventLoop.cc:80: more undefined references to `muduo::Logger::~Logger()' follow
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::EPollPoller(muduo::net::EventLoop*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:46: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:46: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::update(int, muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:179: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:179: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:180: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:179: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:189: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:189: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:189: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:185: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:185: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::poll(int, std::vector<muduo::net::Channel*, std::allocator<muduo::net::Channel*> >*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:57: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:66: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:66: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:66: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:66: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:75: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:75: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:57: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:57: undefined reference to `muduo::LogStream::operator<<(unsigned long)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:57: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:83: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:83: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::updateChannel(muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:111: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:111: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:111: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:112: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:112: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:111: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::removeChannel(muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:155: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:155: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:155: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:155: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::update(int, muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:179: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:189: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:185: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o): in function `muduo::net::EPollPoller::poll(int, std::vector<muduo::net::Channel*, std::allocator<muduo::net::Channel*> >*)':
/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:66: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:57: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EPollPoller.cc.o):/home/lxr/installation/muduo/muduo/net/poller/EPollPoller.cc:111: more undefined references to `muduo::Logger::~Logger()' follow
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::net::PollPoller::poll(int, std::vector<muduo::net::Channel*, std::allocator<muduo::net::Channel*> >*)':
/home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:37: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:37: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:37: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:37: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:42: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:42: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:49: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:49: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::net::PollPoller::updateChannel(muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:78: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:78: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:78: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:78: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:78: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::net::PollPoller::removeChannel(muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:115: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:115: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:115: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:115: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::net::PollPoller::poll(int, std::vector<muduo::net::Channel*, std::allocator<muduo::net::Channel*> >*)':
/home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:37: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::net::PollPoller::updateChannel(muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:78: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(PollPoller.cc.o): in function `muduo::net::PollPoller::removeChannel(muduo::net::Channel*)':
/home/lxr/installation/muduo/muduo/net/poller/PollPoller.cc:115: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::getLocalAddr(int)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:278: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:278: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::getPeerAddr(int)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:290: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:290: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::createNonblockingOrDie(unsigned short)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:91: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:91: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::bindOrDie(int, sockaddr const*)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:102: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:102: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::listenOrDie(int)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:111: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:111: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::accept(int, sockaddr_in6*)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:128: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:128: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:152: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:152: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:152: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:149: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:149: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::close(int)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:183: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:183: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::shutdownWrite(int)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:191: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:191: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::fromIpPort(char const*, unsigned short, sockaddr_in*)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:241: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:241: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::fromIpPort(char const*, unsigned short, sockaddr_in6*)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:252: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:252: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(SocketsOps.cc.o): in function `muduo::net::sockets::accept(int, sockaddr_in6*)':
/home/lxr/installation/muduo/muduo/net/SocketsOps.cc:152: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/SocketsOps.cc:149: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleError()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:426: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:427: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:427: undefined reference to `muduo::strerror_tl(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:426: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::defaultConnectionCallback(std::shared_ptr<muduo::net::TcpConnection> const&)':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:25: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:25: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:25: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::~TcpConnection()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:68: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:68: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:68: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:69: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:68: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleWrite()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:403: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:403: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:403: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:403: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleWrite()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:394: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleClose()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:411: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:411: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:411: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:411: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleRead(muduo::Timestamp)':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:363: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:363: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::sendInLoop(void const*, unsigned long)':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:147: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:147: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::sendInLoop(void const*, unsigned long)':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:167: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:167: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::TcpConnection(muduo::net::EventLoop*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int, muduo::net::InetAddress const&, muduo::net::InetAddress const&)':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:61: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:61: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:61: undefined reference to `muduo::LogStream::operator<<(void const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:62: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpConnection.cc:61: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::EventLoop* muduo::CheckNotNull<muduo::net::EventLoop>(muduo::Logger::SourceFile, int, char const*, muduo::net::EventLoop*)':
/home/lxr/installation/muduo/muduo/base/Logging.h:152: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/Logging.h:152: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleError()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:426: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::defaultConnectionCallback(std::shared_ptr<muduo::net::TcpConnection> const&)':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:25: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleWrite()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:403: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o): in function `muduo::net::TcpConnection::handleClose()':
/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:411: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpConnection.cc.o):/home/lxr/installation/muduo/muduo/net/TcpConnection.cc:61: more undefined references to `muduo::Logger::~Logger()' follow
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::net::TcpServer::~TcpServer()':
/home/lxr/installation/muduo/muduo/net/TcpServer.cc:42: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpServer.cc:42: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpServer.cc:42: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::net::TcpServer::removeConnectionInLoop(std::shared_ptr<muduo::net::TcpConnection> const&)':
/home/lxr/installation/muduo/muduo/net/TcpServer.cc:109: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpServer.cc:109: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpServer.cc:109: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::net::TcpServer::newConnection(int, muduo::net::InetAddress const&)':
/home/lxr/installation/muduo/muduo/net/TcpServer.cc:80: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpServer.cc:80: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TcpServer.cc:80: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::net::TcpServer::newConnection(int, muduo::net::InetAddress const&)':
/home/lxr/installation/muduo/muduo/net/TcpServer.cc:80: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TcpServer.cc.o): in function `muduo::net::EventLoop* muduo::CheckNotNull<muduo::net::EventLoop>(muduo::Logger::SourceFile, int, char const*, muduo::net::EventLoop*)':
/home/lxr/installation/muduo/muduo/base/Logging.h:152: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/Logging.h:152: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TimerQueue.cc.o): in function `muduo::net::detail::resetTimerfd(int, muduo::Timestamp)':
/home/lxr/installation/muduo/muduo/net/TimerQueue.cc:79: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:79: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TimerQueue.cc.o): in function `muduo::net::detail::createTimerfd()':
/home/lxr/installation/muduo/muduo/net/TimerQueue.cc:36: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:36: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TimerQueue.cc.o): in function `muduo::net::detail::readTimerfd(int, muduo::Timestamp)':
/home/lxr/installation/muduo/muduo/net/TimerQueue.cc:61: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:64: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:64: undefined reference to `muduo::LogStream::operator<<(long)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:64: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:61: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:61: undefined reference to `muduo::LogStream::operator<<(unsigned long)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:61: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TimerQueue.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(TimerQueue.cc.o): in function `muduo::net::detail::readTimerfd(int, muduo::Timestamp)':
/home/lxr/installation/muduo/muduo/net/TimerQueue.cc:64: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/TimerQueue.cc:61: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(Acceptor.cc.o): in function `muduo::net::Acceptor::handleRead()':
/home/lxr/installation/muduo/muduo/net/Acceptor.cc:76: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Acceptor.cc:76: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(Acceptor.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(Channel.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(Channel.cc.o): in function `muduo::net::Channel::handleEventWithGuard(muduo::Timestamp)':
/home/lxr/installation/muduo/muduo/net/Channel.cc:86: undefined reference to `muduo::g_logLevel'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:98: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:98: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:98: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:86: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel, char const*)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:86: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:91: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, muduo::Logger::LogLevel)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:91: undefined reference to `muduo::LogStream::operator<<(int)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:91: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:98: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:86: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Channel.cc:91: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThreadPool.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::net::EventLoopThread::EventLoopThread(std::function<void (muduo::net::EventLoop*)> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
/home/lxr/installation/muduo/muduo/net/EventLoopThread.cc:23: undefined reference to `muduo::Thread::Thread(std::function<void ()>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::net::EventLoopThread::~EventLoopThread()':
/home/lxr/installation/muduo/muduo/net/EventLoopThread.cc:35: undefined reference to `muduo::Thread::join()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::net::EventLoopThread::startLoop()':
/home/lxr/installation/muduo/muduo/net/EventLoopThread.cc:42: undefined reference to `muduo::Thread::start()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::net::EventLoopThread::~EventLoopThread()':
/home/lxr/installation/muduo/muduo/net/EventLoopThread.cc:27: undefined reference to `muduo::Thread::~Thread()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::net::EventLoopThread::EventLoopThread(std::function<void (muduo::net::EventLoop*)> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
/home/lxr/installation/muduo/muduo/net/EventLoopThread.cc:23: undefined reference to `muduo::Thread::~Thread()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(EventLoopThread.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(InetAddress.cc.o): in function `muduo::net::InetAddress::resolve(muduo::StringArg, muduo::net::InetAddress*)':
/home/lxr/installation/muduo/muduo/net/InetAddress.cc:137: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/InetAddress.cc:137: undefined reference to `muduo::Logger::~Logger()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(Poller.cc.o): in function `muduo::CurrentThread::tid()':
/home/lxr/installation/muduo/muduo/base/CurrentThread.h:24: undefined reference to `muduo::CurrentThread::t_cachedTid'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/base/CurrentThread.h:26: undefined reference to `muduo::CurrentThread::cacheTid()'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libmuduo_net.a(Socket.cc.o): in function `muduo::net::Socket::setReusePort(bool)':
/home/lxr/installation/muduo/muduo/net/Socket.cc:111: undefined reference to `muduo::Logger::Logger(muduo::Logger::SourceFile, int, bool)'
/usr/bin/ld: /home/lxr/installation/muduo/muduo/net/Socket.cc:111: undefined reference to `muduo::Logger::~Logger()'
collect2: error: ld returned 1 exit status

[chenshuo]

改成 g++ test.cpp -lmuduo_net -lmuduo_base -lpthread 试试。

[ningliu2024]

这种错误是初学者常见的问题了, 可以参考下 https://gitee.com/sacomplex/learnlibrary_notes/tree/master/muduo, 还有建议学下CMake