linux下更新boost库后遇到的一则错误

原先安装过boost1.43版本的库&＃xff0c;在用"bjam  install" 安装boost 1.44的版本后&＃xff0c;出现如下错误&＃xff1a;

[root&＃64;localhost gridcast]# g&＃43;&＃43; -I/usr/local/include datetime_tcp_async_server.cpp -lpthread -lboost_system

datetime_tcp_async_server.cpp:142:2: 警告&＃xff1a;文件未以空白行结束

/tmp/ccEZqyyV.o: In function &＃96;__static_initialization_and_destruction_0(int, int)&＃39;:

datetime_tcp_async_server.cpp:(.text&＃43;0x16c): undefined reference to &＃96;boost::system::get_system_category()&＃39;

datetime_tcp_async_server.cpp:(.text&＃43;0x176): undefined reference to &＃96;boost::system::get_generic_category()&＃39;

datetime_tcp_async_server.cpp:(.text&＃43;0x180): undefined reference to &＃96;boost::system::get_generic_category()&＃39;

datetime_tcp_async_server.cpp:(.text&＃43;0x18a): undefined reference to &＃96;boost::system::get_generic_category()&＃39;

datetime_tcp_async_server.cpp:(.text&＃43;0x194): undefined reference to &＃96;boost::system::get_system_category()&＃39;

/tmp/ccEZqyyV.o: In function &＃96;boost::asio::error::get_system_category()&＃39;:

datetime_tcp_async_server.cpp:(.text._ZN5boost4asio5error19get_system_categoryEv[boost::asio::error::get_system_category()]&＃43;0x7): undefined reference to &＃96;boost::system::get_system_category()&＃39;

/tmp/ccEZqyyV.o: In function &＃96;boost::system::error_code::error_code()&＃39;:

datetime_tcp_async_server.cpp:(.text._ZN5boost6system10error_codeC1Ev[boost::system::error_code::error_code()]&＃43;0x10): undefined reference to &＃96;boost::system::get_system_category()&＃39;

collect2: ld 返回 1

在/usr/local/inclue/boost/system

[root&＃64;localhost system]# find ./ -type f -print|xargs grep "get_system_category" -n
./windows_error.hpp:110:        { return error_code( e, get_system_category() ); }
./cygwin_error.hpp:49:        { return error_code( e, get_system_category() ); }
./error_code.hpp:205:    BOOST_SYSTEM_DECL const error_category &  get_system_category();
./error_code.hpp:208:    static const error_category &  system_category &＃61; get_system_category();
./error_code.hpp:216:    static const error_category &  native_ecat    &＃61; get_system_category();
./error_code.hpp:315:      error_code() : m_val(0), m_cat(&get_system_category()) {}
./error_code.hpp:343:        m_cat &＃61; &get_system_category();
./linux_error.hpp:102:        { return error_code( e, get_system_category() ); }

全新安装版本&＃xff1a;

[root&＃64;LOG system]#  find ./ -type f -print|xargs grep "get_system_category" -n
./error_code.hpp:211:    inline const error_category &  get_system_category() { return system_category(); }

原因&＃xff1a;

/usr/local/inclue/boost/system/error_code.hpp not been overwrited,its still the older version.

属于库版本和头文件版本不一致造成的错误。

解决方案&＃xff1a;先删除掉以前安装的 /usr/local/include/boost目录&＃xff0c;再运行"bjam  install"