Makefile的模板

说明：

0) Makefile文件放置于项目的根目录。
1) 项目源代码文件放置于src目录下面，可以在src下面建立子目录分别放置每个模块的源代码文件。Makefile会自动搜索并生成依赖以及编译这些源文件。
项目的主启动文件(含有main()函数)放置于src/main目录下面。
如果有其它的含main（）的启动文件，请放置于src/xxx目录下面，例如测试目录：
src/test_xxx。使用时，拷贝一份Makfile重命名，修改src_module的值，然后用make -f xxx.mk 来编译需要的文件。
2) 编译的自动依赖文件放置于 bin/depend目录下面。
3) 调试版本(debug)编译的中间结果放置于 bin/debug, 发布版本(release)放置于bin/release
4) 清除分为 clean 和 cleanall
5) 使用时只需要修改 cc ,link 和 src_file_type的值就可以了。

PROGRAM = hello
CC = gcc
CFLAGS = -Wall
LINK = gcc
#LDFLAGS =

SRC_FILE_TYPE = c

#==================================================
# module define
SRC_MODULES = main conf util 

#=================================================
#directory define
SRC_DIR := src
BUILD_DIR := ./bin
DEPS_DIR := $(BUILD_DIR)/depend

#==================================================
#program build mode is: debug/release
BUILD_MODE := debug
#BUILD_MODE := release

#Auto dependent generated? (YES/NO)
#AUTO_DEPENDENT = YES
AUTO_DEPENDENT = NO

#==================================================
#add the lib you used here
#LIBS := -lLib1 -lLib2 -lLib3
#LIBS := -lpthread
LIBS := -lpthread -lxml2
#LIB_PATH := -Lpath1 -Lpath2 -Lpath3
LIB_PATH :=
INCLUDE_PATH := -I $(SRC_DIR) -I ./src/include -I /usr/local/include/libxml2
#INCLUDE_PATH := -I/usr/lib/XXX/include

#=================================================
#get out put directory
ifeq ($(BUILD_MODE),debug)
OUTPUT_DIR := $(BUILD_DIR)/debug
CFLAGS += -g -O0

else
ifeq ($(BUILD_MODE),release)
OUTPUT_DIR := $(BUILD_DIR)/release
CFLAGS += -O3

else
$(error "BUILD_MODE error!(release/debug)")
endif
endif

##set target
target = $(PROGRAM)
target_test = $(PROGRAM)_test

#add path
#VPATH = $(shell find $(SRC_DIR) -type d)
#VPATH = $(SRC_DIR)
VPATH += $(addprefix $(SRC_DIR)/, $(SRC_MODULES))

#FIND_SRC_FILES = $(shell find $(SRC_DIR) -maxdepth 1 -name "*.$(SRC_FILE_TYPE)")
#SRC_FILES = $(notdir $(FIND_SRC_FILES) )

FIND_SRC_FILES = $(foreach dir, $(VPATH), $(wildcard $(dir)/*.$(SRC_FILE_TYPE)))
SRC_FILES = $(notdir $(FIND_SRC_FILES) )

OBJ_FILES = $(SRC_FILES:.$(SRC_FILE_TYPE)=.o)

#auto depend file?
ifeq ($(AUTO_DEPENDENT) ,YES)
DEP_FILES = $(SRC_FILES:.$(SRC_FILE_TYPE)=.d)
endif

OUTPUT_OBJS = $(addprefix $(OUTPUT_DIR)/,$(OBJ_FILES))
OUTPUT_DEPS = $(addprefix $(DEPS_DIR)/,$(DEP_FILES))

#INCLUDE_PATH += $(addprefix -I , $(VPATH))

##======  start of init shell ======##
## exec init shell command

$(shell mkdir -p "$(OUTPUT_DIR)")
$(shell mkdir -p "$(DEPS_DIR)")
#$(foreach dir, $(SRC_MODULES),$(shell mkdir -p "$(DEPS_DIR)/$(dir)"))

##======= end of init ==============##

#add target
.PHONY:all
all: $(BUILD_DIR)/$(target)

.PHONY: help
help:
@echo "make's target is:  "
@echo " make all      --  make all and generate target!"
@echo " make run      --  make all and run the target! "
@echo " make clean    --  make clean the object files!"
@echo " make cleanall --  make clean all ,clean everything!"
@echo "Test:"
@echo " make test     --  make  test target!"
@echo " make testrun  --  make test target and run it!"
@echo " make help     --  this help!"
@echo " "
@echo " "



##
#link all objs and libs
$(BUILD_DIR)/$(target): $(OUTPUT_DEPS) $(OUTPUT_OBJS)
@echo "|------------------------------------------------|"
@echo $(SRC_FILES)
$(LINK) $(LIB_PATH)  $(OUTPUT_OBJS) $(CFLAGS) -o $@ $(LIBS)
@echo "Make '$(BUILD_DIR)/$(target)' finished!"
 
   
#compile source files into object files
$(OUTPUT_DIR)/%.o: %.$(SRC_FILE_TYPE)
$(CC) $(CFLAGS) $(INCLUDE_PATH) -I $(basename $<) -c $< -o $@


#
$(DEPS_DIR)/%.d: %.$(SRC_FILE_TYPE)
@echo -n "$(OUTPUT_DIR)/" > $@
$(CC) -MM $(INCLUDE_PATH) $< >> $@


.PHONY:test
$(BUILD_DIR)/$(target_test): $(OUTPUT_DEPS) $(OUTPUT_OBJS)
@echo "--------->make test!"
$(LINK) $(LIB_PATH) $(OUTPUT_OBJS) $(CFLAGS) -o $@ $(LIBS)


.PHONY:test
test: $(BUILD_DIR)/$(target_test)


.PHONY:testrun
testrun: test
$(BUILD_DIR)/$(target_test)

.PHONY:run
run:
$(BUILD_DIR)/$(target)

.PHONY:clean
clean:
-rm -rf $(OUTPUT_DIR)
-rm -f $(BUILD_DIR)/$(target)
-rm -f $(BUILD_DIR)/$(target_test)

.PHONY:cleanall
cleanall:clean
-rm -rf $(DEPS_DIR)

#dep files
-include $(OUTPUT_DEPS)