xmmswrapper.o(.text+0x63c): In function `main':
: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage'
xmmswrapper.o(.text+0x646): In function `main':
: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage'
xmmswrapper.o(.text+0x64d): In function `main':
: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage'
xmmswrapper.o(.text+0x657): In function `main':
: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage'
xmmswrapper.o(.text+0x65e): In function `main':
: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage'
xmmswrapper.o(.text+0x668): more undefined references to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_empty_rep_storage' follow
collect2: ld returned 1 exit status