无法使用libboost_thread构建应用程序

Question

我跟着get started构建并安装boost 1.61.0到mypath-to-boost，然后尝试使用下面的libboost_thread，

// mythread.cpp

#include <boost/thread.hpp>

void a_thread() {}

int main() {
  boost::thread t{a_thread};
}

建立mythread.cpp，

$ g++ mythread.cpp -std=c++11 -Imypath-to-boost -lboost_thread -Lmypath-to-boost/lib

然后出错了，

/usr/bin/ld: warning: libboost_system.so.1.61.0, needed by mypath-to-boost/lib/libboost_thread.so, not found (try using -rpath or -rpath-link)
mythread.cpp: undefined reference to `boost::system::generic_category()'
...

检查libboost_thread，

$ ls -l mypath-to-boost/lib/*thread*

然后找到了libs，

libboost_thread.a
libboost_thread.so -> libboost_thread.so.1.61.0
libboost_thread.so.1.61.0

那么造成构建失败的问题是什么？

Answer 1

您需要将boost_system库添加到链接行...