MYSRC_ROOT := $(LOCAL_PATH)/../../Classes
FILE_LIST := $(wildcard $(MYSRC_ROOT)/Actions/*.cpp)
FILE_LIST += $(wildcard $(MYSRC_ROOT)/Constants/*.cpp)
FILE_LIST += $(wildcard $(MYSRC_ROOT)/Helpers/*.cpp)
FILE_LIST += $(wildcard $(MYSRC_ROOT)/*.cpp)
LOCAL_SRC_FILES := helloworld/main.cpp
LOCAL_SRC_FILES += $(FILE_LIST:$(LOCAL_PATH)/%=%)