8

我一直在浏览一些关于 boost 及其库的教程。

我浏览了 boost 的基本教程：

http://www.boost.org/doc/libs/1_52_0/more/getting_started/unix-variants.html

它工作得很好。我在使用 asio 教程时遇到问题：

http://www.boost.org/doc/libs/1_50_0/doc/html/boost_asio/tutorial/tutdaytime1/src.html

它看起来像链接错误，但我包含与以前相同的路径：

g++ -I /usr/local/boost_1_52_0 test.cpp -o example

错误：

/tmp/cce4EZME.o: In function `__static_initialization_and_destruction_0(int, int)':
test.cpp:(.text+0x57b): undefined reference to `boost::system::generic_category()'
test.cpp:(.text+0x587): undefined reference to `boost::system::generic_category()'
test.cpp:(.text+0x593): undefined reference to `boost::system::system_category()'
/tmp/cce4EZME.o: In function `boost::system::error_code::error_code()':
test.cpp:(.text._ZN5boost6system10error_codeC2Ev[_ZN5boost6system10error_codeC5Ev]+0x17): undefined reference to `boost::system::system_category()'
/tmp/cce4EZME.o: In function `boost::asio::error::get_system_category()':
test.cpp:(.text._ZN5boost4asio5error19get_system_categoryEv[_ZN5boost4asio5error19get_system_categoryEv]+0x5): undefined reference to `boost::system::system_category()'
/tmp/cce4EZME.o: In function `boost::asio::detail::posix_thread::~posix_thread()':
test.cpp:(.text._ZN5boost4asio6detail12posix_threadD2Ev[_ZN5boost4asio6detail12posix_threadD5Ev]+0x26): undefined reference to `pthread_detach'
/tmp/cce4EZME.o: In function `boost::asio::detail::posix_thread::join()':
test.cpp:(.text._ZN5boost4asio6detail12posix_thread4joinEv[_ZN5boost4asio6detail12posix_thread4joinEv]+0x2b): undefined reference to `pthread_join'
/tmp/cce4EZME.o: In function `boost::asio::detail::posix_thread::start_thread(boost::asio::detail::posix_thread::func_base*)':
test.cpp:(.text._ZN5boost4asio6detail12posix_thread12start_threadEPNS2_9func_baseE[_ZN5boost4asio6detail12posix_thread12start_threadEPNS2_9func_baseE]+0x29): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
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1 回答 1

20

假设你已经在你的目录中安装了你的 boost 库/usr/lib和 boost 头文件，/usr/include/boost并且你已经将你的代码保存在一个名为的文件中daytime1.cpp，你必须使用以下命令来编译你链接到的源代码：

$ g++ daytime1.cpp -o daytime -L /usr/lib/ -lboost_system -lboost_thread -lpthread
于 2012-12-13T21:21:52.003 回答