Android.mk中周遊所有源檔案

最近工作常用到，小結一下

寫法1

MY_FILES_PATH  :=  $(LOCAL_PATH) \
                   $(LOCAL_PATH)/../../Classes
 
MY_FILES_SUFFIX := %.cpp %.c %.cc
 
My_All_Files := $(foreach src_path,$(MY_FILES_PATH), $(shell find "$(src_path)" -type f) ) 
My_All_Files := $(My_All_Files:$(MY_CPP_PATH)/./%=$(MY_CPP_PATH)%)
MY_SRC_LIST  := $(filter $(MY_FILES_SUFFIX),$(My_All_Files)) 
MY_SRC_LIST  := $(MY_SRC_LIST:$(LOCAL_PATH)/%=%)
LOCAL_SRC_FILES := $(MY_SRC_LIST)
#列印編譯資訊
$(warning 'src_list='$(LOCAL_SRC_FILES))           

寫法2

MY_FILES_PATH  :=  $(LOCAL_PATH) \
                   $(LOCAL_PATH)/../../Classes

MY_FILES_SUFFIX := %.cpp %.c

# 遞歸周遊目錄下的所有的檔案
rwildcard=$(wildcard $1$2) $(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2))

# 擷取相應的源檔案
MY_ALL_FILES := $(foreach src_path,$(MY_FILES_PATH), $(call rwildcard,$(src_path),*.*) ) 
MY_ALL_FILES := $(MY_ALL_FILES:$(MY_CPP_PATH)/./%=$(MY_CPP_PATH)%)
MY_SRC_LIST  := $(filter $(MY_FILES_SUFFIX),$(MY_ALL_FILES)) 
MY_SRC_LIST  := $(MY_SRC_LIST:$(LOCAL_PATH)/%=%)

# 去除字串的重複單詞
define uniq =
  $(eval seen :=)
  $(foreach _,$1,$(if $(filter $_,${seen}),,$(eval seen += $_)))
  ${seen}
endef

# 遞歸周遊擷取所有目錄
MY_ALL_DIRS := $(dir $(foreach src_path,$(MY_FILES_PATH), $(call rwildcard,$(src_path),*/) ) )
MY_ALL_DIRS := $(call uniq,$(MY_ALL_DIRS))

# 指派給NDK編譯系統
LOCAL_SRC_FILES  := $(MY_SRC_LIST)
LOCAL_C_INCLUDES := $(MY_ALL_DIRS)


#列印編譯資訊
$(warning 'src_list='$(LOCAL_SRC_FILES))
$(warning 'include_list='$(LOCAL_C_INCLUDES))