一个比较通用的makefile

.PHONY : all clean



DEBUG := YES



CC := gcc

CXX := g++

LD := g++

AR := ar rc



HOME_PATH := $(realpath .)

SOURCE_PATH := ${HOME_PATH}/src

INC_PATH := -I${HOME_PATH}/src

DEP_PATH := ${HOME_PATH}/dep

SRCS := $(wildcard ${SOURCE_PATH}/*.c) $(wildcard ${SOURCE_PATH}/*.cpp)

LIB_PATH := -L${HOME_PATH}/lib



DEBUG_CFLAGS := -g -O0 -Wall -Wconversion -Wuninitialized -D_DEBUG -m64 -pg

RELEASE_CFLAGS := -O3 -m64

DEBUG_CXXFLAGS := ${DEBUG_CFLAGS}

RELEASE_CXXFLAGS := ${RELEASE_CFLAGS}

DEBUG_LDFLAGS := --static

RELEASE_LDFLAGS := --static



ifeq (YES, ${DEBUG})

	CFLAGS := ${DEBUG_CFLAGS}

	CXXFLAGS := ${DEBUG_CXXFLAGS}

	LDFLAGS := ${DEBUG_LDFLAGS}

	BIN_PATH := ${HOME_PATH}/bin/debug

	OBJ_PATH := ${HOME_PATH}/obj/debug

else

	CFLAGS := ${RELEASE_CFLAGS}

	CXXFLAGS := ${RELEASE_CXXFLAGS}

	LDFLAGS := ${RELEASE_LDFLAGS}

	BIN_PATH := ${HOME_PATH}/bin/release

	OBJ_PATH := ${HOME_PATH}/obj/release

endif



BIN := ${BIN_PATH}/miku

LIBS := -Wl,-dn -lev -Wl,-dn -lglog -Wl,-dn -lpthread



OBJS := $(patsubst %,${OBJ_PATH}/%.o,$(basename ${notdir ${SRCS}}))

DEPS := $(patsubst %,${DEP_PATH}/%.d,$(basename ${notdir ${SRCS}}))



all : ${BIN_PATH} ${OBJ_PATH} ${DEP_PATH} ${BIN}



${BIN}: ${OBJS}

	${LD} -o $@ ${LDFLAGS} ${OBJS} ${LIB_PATH} ${LIBS}



${BIN_PATH}:

	mkdir -p ${BIN_PATH}

${OBJ_PATH}:

	mkdir -p ${OBJ_PATH}

${DEP_PATH}:

	mkdir ${DEP_PATH}



${DEP_PATH}/%.d : ${SOURCE_PATH}/%.c

	@set -e;\

	rm -f $@;\

	${CC} -MM ${CFLAGS} ${INC_PATH} $< > [email protected];\

	sed 's,\($*\)\.o[ :]*,${OBJ_PATH}/\1.o $@ : ,g' < [email protected] > $@;\

	rm -f [email protected]



${DEP_PATH}/%.d : ${SOURCE_PATH}/%.cpp

	@set -e;\

	rm -f $@;\

	${CC} -MM ${CFLAGS} ${INC_PATH} $< > [email protected];\

	sed 's,\($*\)\.o[ :]*,${OBJ_PATH}/\1.o $@ : ,g' < [email protected] > $@;\

	rm -f [email protected]



-include ${DEPS}



${OBJ_PATH}/%.o : ${SOURCE_PATH}/%.c

	${CC} -c ${CFLAGS} ${INC_PATH} $< -o ${OBJ_PATH}/${basename ${notdir $@}}.o



${OBJ_PATH}/%.o : ${SOURCE_PATH}/%.cpp

	${CXX} -c ${CXXFLAGS} ${INC_PATH} $< -o ${OBJ_PATH}/${basename ${notdir $@}}.o



clean:

	-rm -f ${HOME_PATH}/dep/*.d

	-rm -f ${HOME_PATH}/obj/debug/*.o

	-rm -f ${HOME_PATH}/obj/release/*.o

	-rm -f ${HOME_PATH}/bin/debug/*

	-rm -f ${HOME_PATH}/bin/release/*

　　基于 gcc -MM 实现的头文件依赖推导。