Error when building

[steelstring94]

After completing cmake when running make, I get errors about undefined references. This is the output:
[ 35%] Built target Project-core [ 41%] Linking CXX executable /home/ben/e4rat-lite/Project-collect CMakeFiles/Project-collect.dir/fileptr.cc.o: In function _GLOBAL__sub_I__Z12isFileUniquePKc':
fileptr.cc:(.text.startup+0x15): undefined reference to boost::system::generic_category()' fileptr.cc:(.text.startup+0x1a): undefined reference to boost::system::generic_category()'
fileptr.cc:(.text.startup+0x33): undefined reference to boost::system::system_category()' CMakeFiles/Project-collect.dir/listener.cc.o: In function doesRegexMatchPath(boost::filesystem::path&, boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits > >&)':
listener.cc:(.text+0x3975): undefined reference to boost::re_detail_106200::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::construct_init(boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::_match_flags)' CMakeFiles/Project-collect.dir/listener.cc.o: In function boost::re_detail_106200::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > >, boost::regex_traits<char, boost::cpp_regex_traits > >::unwind_extra_block(bool)':
listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE18unwind_extra_blockEb[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE18unwind_extra_blockEb]+0x3c): undefined reference to boost::re_detail_106200::put_mem_block(void*)' CMakeFiles/Project-collect.dir/listener.cc.o: In function boost::re_detail_106200::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > >, boost::regex_traits<char, boost::cpp_regex_traits > >::find_imp()':
listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv]+0x1a): undefined reference to boost::re_detail_106200::get_mem_block()' listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv]+0x15d): undefined reference to boost::re_detail_106200::verify_options(unsigned int, boost::regex_constants::_match_flags)'
listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv]+0x19f): undefined reference to boost::re_detail_106200::put_mem_block(void*)' listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE8find_impEv]+0x342): undefined reference to boost::re_detail_106200::put_mem_block(void*)'
CMakeFiles/Project-collect.dir/listener.cc.o: In function __gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > boost::re_detail_106200::re_is_set_member<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, char, boost::regex_traits<char, boost::cpp_regex_traits<char> >, unsigned int>(__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, boost::re_detail_106200::re_set_long<unsigned int> const*, boost::re_detail_106200::regex_data<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, bool)': listener.cc:(.text._ZN5boost16re_detail_10620016re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEjEET_SH_SH_PKNS0_11re_set_longIT2_EERKNS0_10regex_dataIT0_T1_EEb[_ZN5boost16re_detail_10620016re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEjEET_SH_SH_PKNS0_11re_set_longIT2_EERKNS0_10regex_dataIT0_T1_EEb]+0x1b6): undefined reference to boost::re_detail_106200::cpp_regex_traits_implementation::transform_primary[abi:cxx11](char const*, char const*) const'
listener.cc:(.text._ZN5boost16re_detail_10620016re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEjEET_SH_SH_PKNS0_11re_set_longIT2_EERKNS0_10regex_dataIT0_T1_EEb[_ZN5boost16re_detail_10620016re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEjEET_SH_SH_PKNS0_11re_set_longIT2_EERKNS0_10regex_dataIT0_T1_EEb]+0x498): undefined reference to boost::re_detail_106200::cpp_regex_traits_implementation<char>::transform[abi:cxx11](char const*, char const*) const' CMakeFiles/Project-collect.dir/listener.cc.o: In function _GLOBAL__sub_I__Z14getProcessNameB5cxx11i':
listener.cc:(.text.startup+0x15): undefined reference to boost::system::generic_category()' listener.cc:(.text.startup+0x1a): undefined reference to boost::system::generic_category()'
listener.cc:(.text.startup+0x33): undefined reference to boost::system::system_category()' CMakeFiles/Project-collect.dir/listener.cc.o: In function void boost::re_detail_106200::raise_error<boost::regex_traits_wrapper<boost::regex_traits<char, boost::cpp_regex_traits > > >(boost::regex_traits_wrapper<boost::regex_traits<char, boost::cpp_regex_traits > > const&, boost::regex_constants::error_type)':
listener.cc:(.text._ZN5boost16re_detail_10620011raise_errorINS_20regex_traits_wrapperINS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEEEvRKT_NS_15regex_constants10error_typeE[_ZN5boost16re_detail_10620011raise_errorINS_20regex_traits_wrapperINS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEEEvRKT_NS_15regex_constants10error_typeE]+0xb5): undefined reference to boost::re_detail_106200::raise_runtime_error(std::runtime_error const&)' listener.cc:(.text._ZN5boost16re_detail_10620011raise_errorINS_20regex_traits_wrapperINS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEEEvRKT_NS_15regex_constants10error_typeE[_ZN5boost16re_detail_10620011raise_errorINS_20regex_traits_wrapperINS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEEEvRKT_NS_15regex_constants10error_typeE]+0xe8): undefined reference to boost::re_detail_106200::get_default_error_string(boost::regex_constants::error_type)'
CMakeFiles/Project-collect.dir/listener.cc.o: In function boost::re_detail_106200::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::extend_stack()': listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE12extend_stackEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE12extend_stackEv]+0x2c): undefined reference to boost::re_detail_106200::get_mem_block()'
CMakeFiles/Project-collect.dir/listener.cc.o: In function boost::re_detail_106200::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::match_match()': listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE11match_matchEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE11match_matchEv]+0x234): undefined reference to boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > > >::maybe_assign(boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > > > const&)'
CMakeFiles/Project-collect.dir/listener.cc.o: In function boost::re_detail_106200::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::match_prefix()': listener.cc:(.text._ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE12match_prefixEv[_ZN5boost16re_detail_10620012perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE12match_prefixEv]+0x12c): undefined reference to boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > > >::maybe_assign(boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > > > const&)'
CMakeFiles/Project-collect.dir/e4rat-collect.cc.o: In function main': e4rat-collect.cc:(.text.startup+0x99a): undefined reference to boost::filesystem::path::filename() const'
CMakeFiles/Project-collect.dir/e4rat-collect.cc.o: In function _GLOBAL__sub_I__Z4peekP8_IO_FILE': e4rat-collect.cc:(.text.startup+0x14a5): undefined reference to boost::system::generic_category()'
e4rat-collect.cc:(.text.startup+0x14aa): undefined reference to boost::system::generic_category()' e4rat-collect.cc:(.text.startup+0x14af): undefined reference to boost::system::system_category()'
CMakeFiles/Project-collect.dir/eventcatcher.cc.o: In function ScanFsAccess::readLink(boost::filesystem::path&)': eventcatcher.cc:(.text+0x3ab): undefined reference to boost::filesystem::path::parent_path() const'
CMakeFiles/Project-collect.dir/eventcatcher.cc.o: In function _GLOBAL__sub_I__ZN12ScanFsAccess6insertER7FilePtr': eventcatcher.cc:(.text.startup+0x15): undefined reference to boost::system::generic_category()'
eventcatcher.cc:(.text.startup+0x1a): undefined reference to boost::system::generic_category()' eventcatcher.cc:(.text.startup+0x33): undefined reference to boost::system::system_category()'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::absolute(boost::filesystem::path const&, boost::filesystem::path const&)' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::detail::dir_itr_close(void*&, void*&)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::path::m_path_iterator_increment(boost::filesystem::path::iterator&)' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::detail::initial_path(boost::system::error_code*)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::path::begin() const' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::detail::system_complete(boost::filesystem::path const&, boost::system::error_code*)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::path::root_directory() const' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::detail::directory_iterator_construct(boost::filesystem::directory_iterator&, boost::filesystem::path const&, boost::system::error_code*)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::path::compare(boost::filesystem::path const&) const' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::detail::directory_iterator_increment(boost::filesystem::directory_iterator&, boost::system::error_code*)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::cpp_regex_traits<char>::toi(char const*&, char const*, int) const' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::detail::status(boost::filesystem::path const&, boost::system::error_code*)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::do_assign(char const*, char const*, unsigned int)' /home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::path::operator/=(boost::filesystem::path const&)'
/home/ben/e4rat-lite/libProject-core.so.0: undefined reference to boost::filesystem::path::end() const' collect2: error: ld returned 1 exit status CMakeFiles/Project-collect.dir/build.make:176: recipe for target '/home/ben/e4rat-lite/Project-collect' failed make[2]: *** [/home/ben/e4rat-lite/Project-collect] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/Project-collect.dir/all' failed make[1]: *** [CMakeFiles/Project-collect.dir/all] Error 2 Makefile:127: recipe for target 'all' failed make: *** [all] Error 2

[Otamay]

I had the same problem, was compiling against gcc/g++ 4.9). Changed to gcc/g++ 6.3 and it compiled perfectly,