/usr/bin/ld: warning: libarmadillo.so.9, needed by /usr/local/lib/libmlpack.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: /tmp/cc4uAYph.o: in function `main':
benchmark.cpp:(.text+0x4eb): undefined reference to `bool mlpack::data::Load<double>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, arma::Mat<double>&, bool, bool, arma::file_type)'
/usr/bin/ld: benchmark.cpp:(.text+0x6ba): undefined reference to `bool mlpack::data::Load<double>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, arma::Mat<double>&, bool, bool, arma::file_type)'
/usr/bin/ld: benchmark.cpp:(.text+0x8b8): undefined reference to `bool mlpack::data::Load<double>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, arma::Mat<double>&, bool, bool, arma::file_type)'
/usr/bin/ld: /tmp/cc4uAYph.o: in function `bool mlpack::data::Load<double>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, arma::Row<double>&, bool)':
benchmark.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERN4arma3RowIT_EEb[_ZN6mlpack4data4LoadIdEEbRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERN4arma3RowIT_EEb]+0x55): undefined reference to `bool mlpack::data::Load<double>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, arma::Mat<double>&, bool, bool, arma::file_type)'
collect2: error: ld returned 1 exit status