SET(CMAKE_SYSTEM_NAME Windows)
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SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
SET(CMAKE_CXX_LINK_EXECUTABLE x86_64-w64-mingw32-ld)
SET(CMAKE_CXX_COMPILER_AR x86_64-w64-mingw32-ar)
SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)

SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)