cmake_minimum_required(VERSION 2.8) set(HEX_PREFIX "\; device = mm-control\n\n") set(HEX_NAME "MM-control-01.hex") file(READ ${WORK_DIR}/firmware.hex HEX) file(WRITE ${WORK_DIR}/${HEX_NAME} ${HEX_PREFIX}) file(APPEND ${WORK_DIR}/${HEX_NAME} ${HEX}) message(status "Successfully built MM-control-01.hex!")