On Aug 27, 2011, at 9:55 AM, drwho [via Boost] wrote:

New to boost. (Ubuntu 10.10) Downloaded boost 1.47 source. Built it with ./bootstrap.sh and ./b2 Keep getting linker failure, undefined reference to `boost::system::get_system_category() in my QT app. Tried your serial example from bash, same thing....

drwho@drwho-desktop:~/Projects/prog$ g++ -Lboost/stage/lib -lboost_system -lboost_thread serial.cpp -o test
/tmp/ccvTv9iN.o: In function `__static_initialization_and_destruction_0(int, int)':
serial.cpp:(.text+0x3cf): undefined reference to `boost::system::get_system_category()'
serial.cpp:(.text+0x3d9): undefined reference to `boost::system::get_generic_category()'
serial.cpp:(.text+0x3e3): undefined reference to `boost::system::get_generic_category()'
serial.cpp:(.text+0x3ed): undefined reference to `boost::system::get_generic_category()'
serial.cpp:(.text+0x3f7): undefined reference to `boost::system::get_system_category()'
/tmp/ccvTv9iN.o: In function `boost::system::error_code::error_code()':
serial.cpp:(.text._ZN5boost6system10error_codeC1Ev[boost::system::error_code::error_code()]+0x10): undefined reference to `boost::system::get_system_category()'
/tmp/ccvTv9iN.o: In function `boost::asio::error::get_system_category()':
serial.cpp:(.text._ZN5boost4asio5error19get_system_categoryEv[boost::asio::error::get_system_category()]+0x7): undefined reference to `boost::system::get_system_category()'
collect2: ld returned 1 exit status

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