PLATFORM_CC ?= gcc PLATFORM_AR ?= ar PLATFORM_OS ?= linux FEATURE_MQTT_COMM_ENABLED ?= y FEATURE_DEVICE_SHADOW_ENABLED ?= n FEATURE_OTA_ENABLED ?= n FEATURE_DEVICE_MODEL_ENABLED ?= y FEATURE_AUTH_MODE_DYNAMIC ?= n FEATURE_SUPPORT_TLS ?= n FEATURE_SDK_TESTS_ENABLED ?= n #是否开启单元测试编译 仅支持linux FEATURE_MQTT_RMDUP_MSG_ENABLED ?= n #是否开启MQTT消息去重能力 ENABLE_MAKEFILE_DEBUG ?= n