cocos2d-x 自动添加mk

# 遍历目录及子目录的函数  
define walk  
    $(wildcard $(1)) $(foreach e, $(wildcard $(1)/*), $(call walk, $(e)))  
endef  

# 遍历Classes目录  
ALLFILES = $(call walk, $(LOCAL_PATH)/../../Classes)  

FILE_LIST := hellocpp/main.cpp  
# 从所有文件中提取出所有.cpp文件  
FILE_LIST += $(filter %.cpp, $(ALLFILES))  

LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%)  
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../Classes