set (CMAKE_SYSTEM_NAME Windows)
set (CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
set (CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
set (CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32/)
set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
# call cmake:
# cmake -DCMAKE_TOOLCHAIN_FILE=toolchain-mingw64.cmake SRCPATH
