otool -hv mykext | grep ${FILE_TYPE} | ${FAIL_IF_EMPTY}
nm -nm mykext | grep '(undefined) external _extern_global' | ${FAIL_IF_EMPTY}
nm -nm mykext | grep '(__DATA,__data) external _my_global' | ${FAIL_IF_EMPTY}
otool -rv mykext | grep '_extern_global' | ${FAIL_IF_EMPTY}
otool -hv mykext | grep ${FILE_TYPE} | ${FAIL_IF_EMPTY}
nm -nm mykext | grep '(undefined) external _extern_global' | ${FAIL_IF_EMPTY}
nm -nm mykext | grep '(__DATA,__data) external _my_global' | ${FAIL_IF_EMPTY}
otool -rv mykext | grep '_extern_global' | ${FAIL_IF_EMPTY}