Re: [Boost-users] Error using boost::thread for the first time.

Simon Pickles pravi:

Hi there,

I am using boost::thread for the first time as part of boost::asio. I am trying to compile the chat_client.cpp example.

When I uncomment the threading line, it won't link. Here's the line in question:

boost::thread t(boost::bind(&boost::asio::io_service::run, &io_service));

and heres the error:

chat_client.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::thread::~thread(void)" (??1thread@boost@@QAE@XZ) referenced in function _main chat_client.obj : error LNK2019: unresolved external symbol "public: void __thiscall boost::thread::join(void)" (?join@thread@boost@@QAEXXZ) referenced in function _main chat_client.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::thread::thread(class boost::function0 const &)" (??0thread@boost@@QAE@ABV?$function0@XV?$allocator@Vfunction_base@boost@@@std@@@1@@Z)

referenced in function _main

I think I've done everything required. I've installed all the boost libraries with the Boost Consulting installer. I've added a few defines too:

#define BOOST_ALL_NO_LIB // For linking with boost.thread not supported by Â?BOOST_ALL_DYN_LINKÂ? #define BOOST_THREAD_USE_DLL // Verbose #define BOOST_LIB_DIAGNOSTIC

All to no avail. I'm not getting the 'boost-*.lib not found' message..... Just missing functions!

Anyone any advice?

Thanks

Simon

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Boost Consulting installer doesnt build all libraries. You should build them by hand (with bjam)..