c++ - mingw g++ is unable to link with libraries -

i'm trying use x86_64-w64-mingw32-g++ (packaged in archlinux's mingw package) cross compile c++ code windows executable, i'm having trouble getting past issues.

i'm calling

x86_64-w64-mingw32-g++ -o build_win/asm build_win/asm.o build_win/asm_lib.o build_win/socket_boost.o -i../extra/etc -fopenmp -lrt -std=c++11 -g -lboost_system -lboost_serialization  

from makefile, thrown errors:

/usr/lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/bin/ld: cannot find -lrt /usr/lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/bin/ld: cannot find -lboost_system /usr/lib/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/bin/ld: cannot find -lboost_serialization 

this works fine native g++, have change mingw compile?

edit: have mingw-w64-boost package installed, includes boost libraries pre-compiled , ready linked. however, seems naming convention bit different, , -lboost_system example becomes -llibboost_system-mt (not sure -mt suffix entails).

problem can't find mingw counterpart -lrt. i've tried both -lrtm , -lrtutils in both cases get:

[...]  undefined reference `__imp_getsockopt' 

are sure -lboost_system , other libraries present in same directory makefile ?

if not please include -l flag indicates location of library.

for example:

-l /path_openmp -fopenmp -l /path_boost_system/ -lboost_system -l /path_serialization -lboost_serialization 

moreover, need not include -i , -g flag when creating executable .o files. these needed when create .o .cpp files.