Makefile的使用

主Makefile:

CURDIR:= $(shell pwd)
include $(CURDIR)/config.mk
SHARELIBS := uimmshare param comm global
MODULES := hdtst mntn bst
all :
for module in $(MODULES); do make -w -C $$module all; done//到子目录去执行里面的Makefile，这里与shell编程相结合了
for module in $(MODULES); do make -w -C $$module ; done

share :
for module in $(SHARELIBS); do make -w -C $$module all; done
for module in $(SHARELIBS); do make -w -C $$module ; done

clean :
for module in $(MODULES); do make -w -C $$module clean; done


share_clean :
for module in $(SHARELIBS); do make -w -C $$module clean; done


子Makefile:

TOPDIR:= $(shell pwd)
ROOTDIR := $(shell cd ..; pwd)
include $(ROOTDIR)/config.mk
LIB= $(shell basename $(TOPDIR)).$(LIB_TYPE)
SOURCE := $(wildcard *.c) $(wildcard *.cpp)//这个也很有用
OBJS := $(patsubst %.c,%.o,$(patsubst %.cpp,%.o,$(SOURCE))) //还有这个
all:$(LIB)
$(LIB):$(OBJS)
ifeq ($(LIB_TYPE),a)
$(AR) crsv $@ $(OBJS)//编译静态库
-mv $@ $(ROOTDIR)/appfs/lib/$(TARGET_ARCH)/lib$@
else
$(CC) -fpic -shared -o $@ $(OBJS)
-mv -f $@ $(ROOTDIR)/appfs/lib/$(TARGET_ARCH)/lib$@
ifeq ($(TARGET_ARCH), arm)
$(STRIP) $(ROOTDIR)/appfs/lib/$(TARGET_ARCH)/lib$@
endif
endif
.PHONY : depend clean clean_obj clean_depend
depend: Makefile $(SOURCE)
$(CC) -M $(CFLAGS) $(SOURCE) > .depend
clean : clean_obj clean_depend
-rm -f $(ROOTDIR)/appfs/lib/$(TARGET_ARCH)/lib$(LIB)

clean_obj :
-rm -f *.o

clean_depend :
-rm -f .depend

sinclude .depend



另附上几个简单的Makefile:
１.
CURDIR := $(shell pwd)
MODULES := 1 2 3
all:
for module in $(MODULES); do make -w -C $$module; done
#%.o:%.c
#$(CC) $(CFLAGS) -c$<-o$@ //这两个也很有用
clean:
make -C 3 clean
rm -vf main

２.
TOPDIR := $(shell pwd)
ROOTDIR := $(shell cd ..; pwd)
SRC=main.c
OBJS=main.o
CC=gcc
CFLAGS=-Wall -O -g
#all: $(OBJS)
$(OBJS): $(SRC)
$(CC) $(CFLAGS) -I$(ROOTDIR)/xx/ -c $< -o $@ //这里用到了-I来包含非当前目录下的头文件
-mv $@ $(ROOTDIR)/yy/$@
clean:
-rm -f *.o

３.
CUDIR := $(shell pwd)
ROOTDIR := $(shell cd ..; pwd)
CFLAGS := -I$(ROOTDIR)/t/h/
hello:hello.c
gcc $< $(CFLAGS) -o $@