将未定义的引用交叉编译 linux 到 windows

Question

我正在尝试使用 boost 从 linux 交叉编译到 windows。我已经交叉编译了 boost 并且我有 DLL，但是当我 linking 时，我得到了几个未定义的引用：

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text+0x170): undefined reference to `boost::asio::io_service::io_service()'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text+0x1b7): undefined reference to boost::asio::ip::address_v4::from_string(std::__cxx11::basic_string, std::allocator > const&)'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text+0x1c7): undefined reference to boost::asio::ip::address::address(boost::asio::ip::address_v4 const&)'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text+0x54e): undefined reference to `boost::asio::io_service::~io_service()'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text+0x5c0): undefined reference to `boost::asio::io_service::~io_service()'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text+0x97e): undefined reference to `boost::asio::io_service::run()'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text$_ZN5boost4asio2ip14basic_endpointINS1_3tcpEEC1ERKNS1_7addressEt[_ZN5boost4asio2ip14basic_endpointINS1_3tcpEEC1ERKNS1_7addressEt]+0x2a): undefined reference to boost::asio::ip::detail::endpoint::endpoint(boost::asio::ip::address const&, unsigned short)'

src/client/CommunicationHandler.o:CommunicationHandler.cpp:(.text$_ZN5boost4asio2ip16resolver_serviceINS1_3tcpEE7destroyERSt10shared_ptrIvE[_ZN5boost4asio2ip16resolver_serviceINS1_3tcpEE7destroyERSt10shared_ptrIvE]+0x20): undefined reference to boost::asio::detail::resolver_service_base::destroy(std::shared_ptr&)'

...等等

为什么符号不在DLL中？我该怎么做才能正确地link？

Answer 1

这让它起作用

#ifndef BOOST_SYSTEM_USE_LIB # 定义 BOOST_SYSTEM_USE_LIB #endif