多层级的makefile编写——递归调用makefile

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文件层级结构：

│ Makefile
│ tmp
│
├─include
│      public.h
│
└─src
    ├─moda
    │      Makefile
    │      moda.c
    │      moda.h
    │
    └─modb
            Makefile
            modb.c
            modb.h

public.h

#define MAX_SIZE 10

moda.c (modb.c类似)

#include <stdio.h>#include "moda.h"#include "public.h"int main(void){  printf("This is mod A, MAX_SIZE:%d \n", MAX_SIZE);  return 0;}

顶层makefile：

CC = gccROOT := $(shell pwd)INCLUDE := $(ROOT)/includeSRC := $(ROOT)/srcUSR_SUB_DIR := $(SRC)/moda $(SRC)/modbdefault:usrusr:  @for n in $(USR_SUB_DIR); do $(MAKE) -C $$n ; done  clean:  @for n in $(USR_SUB_DIR); do $(MAKE) -C $$n clean; done

moda目录下makefile ：

CC = gccROOT := $(shell pwd)/../..INCLUDE := $(ROOT)/includeCFLAGS += -I$(INCLUDE)target:modamodb:moda.o  $(CC) -o moda moda.omodb.o:moda.c  $(CC) $(CFLAGS) -c moda.c   clean:  -rm *.o moda

执行：

linux:/mnt/hgfs/vmware-share/makefile # make make[1]: Entering directory `/mnt/hgfs/vmware-share/makefile/src/moda'gcc -I/mnt/hgfs/vmware-share/makefile/src/moda/../../include   -c -o moda.o moda.cgcc   moda.o   -o modamake[1]: Leaving directory `/mnt/hgfs/vmware-share/makefile/src/moda'make[1]: Entering directory `/mnt/hgfs/vmware-share/makefile/src/modb'gcc -I/mnt/hgfs/vmware-share/makefile/src/modb/../../include -c modb.c gcc -o modb modb.omake[1]: Leaving directory `/mnt/hgfs/vmware-share/makefile/src/modb'linux:/mnt/hgfs/vmware-share/makefile #linux:/mnt/hgfs/vmware-share/makefile # cd src/moda/linux:/mnt/hgfs/vmware-share/makefile/src/moda # ll总用量 5drwxrwxrwx  1 root root    0 2014-03-25 23:51 .drwxrwxrwx  1 root root    0 2014-03-25 23:10 ..-rwxrwxrwx  1 root root  219 2014-03-25 23:30 Makefile-rwxrwxrwx  1 root root 6803 2014-03-25 23:51 moda-rwxrwxrwx  1 root root  149 2014-03-25 23:39 moda.c-rwxrwxrwx  1 root root    0 2014-03-25 23:10 moda.h-rwxrwxrwx  1 root root  908 2014-03-25 23:51 moda.olinux:/mnt/hgfs/vmware-share/makefile/src/moda # ./modaThis is mod A, MAX_SIZE:10

linux:/mnt/hgfs/vmware-share/makefile #linux:/mnt/hgfs/vmware-share/makefile #linux:/mnt/hgfs/vmware-share/makefile #

linux:/mnt/hgfs/vmware-share/makefile # make clean
make[1]: Entering directory `/mnt/hgfs/vmware-share/makefile/src/moda'
rm *.o moda
make[1]: Leaving directory `/mnt/hgfs/vmware-share/makefile/src/moda'
make[1]: Entering directory `/mnt/hgfs/vmware-share/makefile/src/modb'
rm *.o modb
make[1]: Leaving directory `/mnt/hgfs/vmware-share/makefile/src/modb'

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