最近工作常用到，小结一下

写法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)
#打印编译信息
$(warning 'src_list='$(LOCAL_SRC_FILES))

写法2

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

MY_FILES_SUFFIX := %.cpp %.c

# 递归遍历目录下的所有的文件
rwildcard=$(wildcard $1$2) $(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2))

# 获取相应的源文件
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)/%=%)

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

# 递归遍历获取所有目录
MY_ALL_DIRS := $(dir $(foreach src_path,$(MY_FILES_PATH), $(call rwildcard,$(src_path),*/) ) )
MY_ALL_DIRS := $(call uniq,$(MY_ALL_DIRS))

# 赋值给NDK编译系统
LOCAL_SRC_FILES  := $(MY_SRC_LIST)
LOCAL_C_INCLUDES := $(MY_ALL_DIRS)


#打印编译信息
$(warning 'src_list='$(LOCAL_SRC_FILES))
$(warning 'include_list='$(LOCAL_C_INCLUDES))