Good morning, I am trying to create a logger that uses Boost Log. I was successful getting my code to compile with 1.63.0, so I know that I am not too far off of the mark. cmake/make throws a linking issues whenever I attempt to create a sink: typedef sinks::synchronous_sink< sinks::text_ostream_backend > text_sink; boost::shared_ptr< text_sink > sink = boost::make_shared< text_sink
();
or create file sink logging::add_file_log ( keywords::file_name = log_specs.log_file, keywords::rotation_size = 10 * 1024 * 1024, keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0), keywords::filter = min_severity || severity >= file_severity, keywords::format = ( expr::stream << expr::format_date_time<boost::posix_time::ptime>("TimeStamp", "%Y-%m-%d_%H:%M:%S.%f") << ": [" << severity << "]" << expr::smessage ), keywords::auto_flush = true //flush to file.. ); My code will compile 95% and then produce the following: CMakeFiles/main.dir/src/Logger.cpp.o: In function `boost::enable_if_c<(boost::log::v2_mt_posix::aux::is_character_type<wchar_t>::value&&boost::log::v2_mt_posix::aux::is_character_type<char>::value)&&((sizeof (wchar_t))!=(sizeof (char))), bool>::type boost::log::v2_mt_posix::aux::code_convert<wchar_t, char, std::char_traits<char>, std::allocator<char> >(wchar_t const*, unsigned long, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, unsigned long, std::locale const&)': Logger.cpp:(.text._ZN5boost3log11v2_mt_posix3aux12code_convertIwcSt11char_traitsIcESaIcEEENS_11enable_if_cIXaaaasrNS2_17is_character_typeIT_EE5valuesrNS8_IT0_EE5valuenestS9_stSB_EbE4typeEPKS9_mRNSt7__cxx1112basic_stringISB_T1_T2_EEmRKSt6locale[_ZN5boost3log11v2_mt_posix3aux12code_convertIwcSt11char_traitsIcESaIcEEENS_11enable_if_cIXaaaasrNS2_17is_character_typeIT_EE5valuesrNS8_IT0_EE5valuenestS9_stSB_EbE4typeEPKS9_mRNSt7__cxx1112basic_stringISB_T1_T2_EEmRKSt6locale]+0x37): undefined reference to `boost::log::v2_mt_posix::aux::code_convert_impl(wchar_t const*, unsigned long, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, unsigned long, std::locale const&)' CMakeFiles/main.dir/src/Logger.cpp.o: In function `void boost::log::v2_mt_posix::sinks::basic_formatting_sink_frontend<char>::feed_record<boost::recursive_mutex, boost::log::v2_mt_posix::sinks::basic_text_ostream_backend<char>
(boost::log::v2_mt_posix::record_view const&, boost::recursive_mutex&, boost::log::v2_mt_posix::sinks::basic_text_ostream_backend<char>&)':
Logger.cpp:(.text._ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS_15recursive_mutexENS2_26basic_text_ostream_backendIcEEEEvRKNS1_11record_viewERT_RT0_[_ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS_15recursive_mutexENS2_26basic_text_ostream_backendIcEEEEvRKNS1_11record_viewERT_RT0_]+0x141): undefined reference to `boost::log::v2_mt_posix::sinks::basic_text_ostream_backend<char>::consume(boost::log::v2_mt_posix::record_view const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' CMakeFiles/main.dir/src/Logger.cpp.o: In function `void boost::log::v2_mt_posix::sinks::basic_formatting_sink_frontend<char>::feed_record<boost::recursive_mutex, boost::log::v2_mt_posix::sinks::text_file_backend>(boost::log::v2_mt_posix::record_view const&, boost::recursive_mutex&, boost::log::v2_mt_posix::sinks::text_file_backend&)': Logger.cpp:(.text._ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS_15recursive_mutexENS2_17text_file_backendEEEvRKNS1_11record_viewERT_RT0_[_ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS_15recursive_mutexENS2_17text_file_backendEEEvRKNS1_11record_viewERT_RT0_]+0x141): undefined reference to `boost::log::v2_mt_posix::sinks::text_file_backend::consume(boost::log::v2_mt_posix::record_view const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' CMakeFiles/main.dir/src/Logger.cpp.o: In function `void boost::log::v2_mt_posix::sinks::basic_formatting_sink_frontend<char>::feed_record<boost::log::v2_mt_posix::aux::fake_mutex, boost::log::v2_mt_posix::sinks::basic_text_ostream_backend<char>
(boost::log::v2_mt_posix::record_view const&, boost::log::v2_mt_posix::aux::fake_mutex&, boost::log::v2_mt_posix::sinks::basic_text_ostream_backend<char>&)':
Logger.cpp:(.text._ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS1_3aux10fake_mutexENS2_26basic_text_ostream_backendIcEEEEvRKNS1_11record_viewERT_RT0_[_ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS1_3aux10fake_mutexENS2_26basic_text_ostream_backendIcEEEEvRKNS1_11record_viewERT_RT0_]+0x141): undefined reference to `boost::log::v2_mt_posix::sinks::basic_text_ostream_backend<char>::consume(boost::log::v2_mt_posix::record_view const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' CMakeFiles/main.dir/src/Logger.cpp.o: In function `void boost::log::v2_mt_posix::sinks::basic_formatting_sink_frontend<char>::feed_record<boost::log::v2_mt_posix::aux::fake_mutex, boost::log::v2_mt_posix::sinks::text_file_backend>(boost::log::v2_mt_posix::record_view const&, boost::log::v2_mt_posix::aux::fake_mutex&, boost::log::v2_mt_posix::sinks::text_file_backend&)': Logger.cpp:(.text._ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS1_3aux10fake_mutexENS2_17text_file_backendEEEvRKNS1_11record_viewERT_RT0_[_ZN5boost3log11v2_mt_posix5sinks30basic_formatting_sink_frontendIcE11feed_recordINS1_3aux10fake_mutexENS2_17text_file_backendEEEvRKNS1_11record_viewERT_RT0_]+0x141): undefined reference to `boost::log::v2_mt_posix::sinks::text_file_backend::consume(boost::log::v2_mt_posix::record_view const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' collect2: error: ld returned 1 exit status make[2]: *** [main] Error 1 make[1]: *** [CMakeFiles/main.dir/all] Error 2 Can someone please help? I have tried everything from trying to dynamically and statically link. I've added both "log" and "log_setup" to the find_packages in cmake and have also explicitly specified the locations of those libraries as well. Please let me know if there is anything else to try. Thanks -- Karmethia Thompson Applied Mathematics, PhD