pero - Error inusual del enlazador de C++-''Definido en la sección descartada''

in function ''int main()''

Question

Estoy intentando vincular el ejecutable de mi programa, pero sigo recibiendo errores.

Teniendo

boost::this_thread::sleep(boost::posix_time::milliseconds(10));

en mi código fuente produce el siguiente error en el vinculador:

`.text._ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<std::runtime_error>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED2Ev[_ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::gregorian::bad_day_of_month>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_year> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_year> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::gregorian::bad_year>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::gregorian::bad_month>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_day_of_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_day_of_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)

Utilizando boost :: thread :: condition_variable :: wait yields

src/net/libnet.a(semaphore.cpp.o): In function `interruption_checker'':
/usr/local/include/boost/thread/pthread/thread_data.hpp:96: undefined reference to `boost::detail::get_current_thread_data()''
src/net/libnet.a(semaphore.cpp.o): In function `boost::condition_variable::wait(boost::unique_lock<boost::mutex>&)'':
/usr/local/include/boost/thread/pthread/condition_variable.hpp:57: undefined reference to `boost::this_thread::interruption_point()''
collect2: ld returned 1 exit status

Estoy usando CMake, y me dice: Make emite el siguiente comando, que falla:

    /usr/bin/c++       CMakeFiles/rcon.dir/src/main.cpp.o  -o rcon -rdynamic -L/usr/local/lib /usr/local/lib/libboost_system.a /usr/local/lib/libboost_thread.a -lpthread src/net/libnet.a src/log/liblogging.a -Wl,-rpath,/usr/local/lib 

Whatever could be wrong? It is linking in libboost_thread.a?

Actualizar

Después de mover libnet y liblogging (partes de mi programa, compiladas en bibliotecas estáticas porque pensé que era limpio) antes de que las bibliotecas de impulso en la línea de comando eliminen los errores undefined . Sin embargo, ahora los obtengo al compilar con boost :: condition_variable en mi código, mientras que el otro error no se modifica:

`.text._ZN5boost16exception_detail19error_info_injectorINS_10lock_errorEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_10lock_errorEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::lock_error>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_10lock_errorEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_10lock_errorEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<std::runtime_error>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED2Ev[_ZN5boost16exception_detail19error_info_injectorISt13runtime_errorED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::gregorian::bad_day_of_month>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_9gregorian16bad_day_of_monthEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_21thread_resource_errorEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_21thread_resource_errorEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::thread_resource_error>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_21thread_resource_errorEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_21thread_resource_errorEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::condition_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::condition_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_15condition_errorEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_15condition_errorEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_15condition_errorEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::condition_error>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_15condition_errorEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_15condition_errorEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_year> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_year> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian8bad_yearEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::gregorian::bad_year>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_9gregorian8bad_yearEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED2Ev'' referenced in section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injector<boost::gregorian::bad_month>::~error_info_injector()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED2Ev[_ZN5boost16exception_detail19error_info_injectorINS_9gregorian9bad_monthEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_day_of_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_day_of_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian16bad_day_of_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_month> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_9gregorian9bad_monthEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::thread_resource_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::thread_resource_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_21thread_resource_errorEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::lock_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)
`.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED2Ev'' referenced in section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::lock_error> >::~clone_impl()]'' of /usr/local/lib/libboost_thread.a(thread.o): defined in discarded section `.text._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED2Ev[_ZN5boost16exception_detail10clone_implINS0_19error_info_injectorINS_10lock_errorEEEED5Ev]'' of /usr/local/lib/libboost_thread.a(thread.o)

Answer 1

Sospecho que una parte o la totalidad del problema es el orden de las bibliotecas en la línea de enlace. Algunos vinculadores requieren que liste bibliotecas desde la más dependiente a la menos dependiente, de izquierda a derecha, para que sepan qué símbolos extraer de cada biblioteca. Como primer inicio, mueva libnet antes de libboost_thread y vea si las cosas mejoran (o al menos cambian).

Answer 2

Ahora estoy un poco avergonzado. Aparentemente, algo estaba mal con mi biblioteca de impulso. Probablemente, lo compilé con una versión de gcc, después de lo cual hice una actualización de todo . Esto probablemente actualizó GCC con alguna forma de incompatibilidad menor entre las dos versiones. Sin embargo, podría estar completamente equivocado acerca de eso.

Eliminé todas las apariciones de impulso y obtuve impulso de los repositorios de Archlinux, que actualmente están actualizados con los lanzamientos oficiales. Ahora compila como debería.

Tonto de mí. :(

Answer 3

Las secciones de Linkonce (y la noción más reciente de grupos comdat) son una forma para que el compilador emita instancias de plantilla y funciones en línea fuera de línea sin preocuparse por muchas copias duplicadas en el archivo de salida vinculado. Puede haber una copia de, por ejemplo, una función de plantilla instanciada en 2+ archivos de objetos discretos, de los cuales el vinculador seleccionará uno y descartará todos los demás. Para que ese caso se vincule correctamente, es importante que cada copia defina y haga referencia exactamente al mismo conjunto de símbolos.

Sin embargo, a veces se definen símbolos adicionales cuando se usan diferentes opciones de compilación (por ejemplo, -g , o cuando las opciones del compilador difieren entre los archivos de objeto, como suele ser el caso con bibliotecas compartidas) o el conjunto de símbolos ha cambiado de una versión de gcc a siguiente (sospecho que esto es poco probable en tu caso - EDITAR: bueno, coloreame emocionado, parece que eso podría haber sido tu locura. Me alegra que tu problema esté resuelto). Lo que puede estar sucediendo aquí es que tiene una referencia de una sección que no es un enlace a un símbolo que está definido en algunas (pero no todas) las copias de una sección de enlace en particular. Si el vinculador descarta el que tiene ese símbolo y conserva el que no tiene ese símbolo, se obtiene este error.

Yo propondría que reorganices el orden de enlace de tus módulos de objeto para intentar que el enlazador mantenga la sección que define los símbolos que necesitas; en particular intente mover los archivos de objeto mencionados en el mensaje de error al final o al principio de la lista de archivos de objetos según sus dependencias (recuerde que los archivos de objetos están vinculados de izquierda a derecha en su orden de línea de comando).

Answer 4

Aquí está mi solución real que no implica cambiar los indicadores de compilación de tu proyecto completo:

Asumiendo que tienes esta función:

void foo() {/* ... */}

y su enlazador produce este mensaje de error:

`foo'' referenced in section `...'' of ...: defined in discarded section `.text'' of ...

Eso significa que, en algún lugar del proceso de compilación / vinculación, se eliminó la función.

Puede aplicar el __attribute__((used)) de función __attribute__((used)) GCC para forzar al compilador a no recolectar basura de la función de ninguna manera:

__attribute__((used)) void foo() {/* ... */}

Cuando se usa con frecuencia, recomiendo definir una macro (que también se puede usar para ser compatible con otros compiladores):

#define USED __attribute__((used))
//Usage example
USED void foo() {/* ... */}

Tenga en cuenta que no es aconsejable agregar este atributo a todas las funciones, ya que podría aumentar el tamaño de su biblioteca / ejecutable porque muchas funciones no utilizadas no se eliminarán del compilador final.

Ver los atributos de la función docpage de GCC