Makefile的问题

buaaspy

foo.h
--------------------------------------------------------------------------------------------------------------
#ifndef FOO_H
#define FOO_H

void foo();

#endif

foo.c
--------------------------------------------------------------------------------------------------------------
#include <stdio.h>
#include "foo.h"

void foo()
{  
  printf("Makefile\n";
}

main.c
--------------------------------------------------------------------------------------------------------------
extern void foo();

int main()
{
  
  foo();
  return 0;
}



makefile
######################################################################
CC=gcc
RM=rm
RMFLAGS=-rf

######################################################################
.PHONY:clean all

######################################################################
DIR_BIN=bin
DIR_OBJ=obj
DIR_DEP=dep
DIRS=${DIR_BIN} ${DIR_OBJ} ${DIR_DEP}
BIN=simple
BIN:=${addprefix ${DIR_BIN}/,${BIN}}
SRC=${wildcard *.c}
OBJ=${SRC:.c=.o}
OBJ:=${addprefix ${DIR_OBJ}/,${OBJ}}
DEP=${SRC:.c=.dep}
DEP:=${addprefix ${DIR_DEP}/,${DEP}}

######################################################################
all{BIN}

-include ${DEP}

${DIRS}:
        mkdir $@

${BIN}{DIR_BIN} ${OBJ}
        ${CC} -o $@ ${filter %.o,$^}

${DIR_OBJ}/%.o{DIR_OBJ} %.c
        ${CC} -o $@ -c ${filter %.c,$^}



${DIR_DEP}/%.dep{DIR_DEP} %.c
        ${CC} -E -MM ${CPPFLAGS} $< > $@.$$$$;\
        sed 's,\(.*\)\.o[:]*,\1.o $@:,g' < $@.$$$$ > $@;\
        ${RM} ${RMFLAGS} $@.$$$$

clean:
        rm ${RMFLAGS} ${DIRS}


程序及makefile文件均来自《驾驭makefile》，但是在我的{virtualbox Fedora17, gcc4.7, make3.82}里结果却是这样的：
mkdir dep
gcc -E -MM  dep > dep/main.dep.$$;\
sed 's,\(.*\)\.o[:]*,\1.o dep/main.dep:,g' < dep/main.dep.$$ > dep/main.dep;\
rm -rf dep/main.dep.$$
gcc -E -MM  dep > dep/foo.dep.$$;\
sed 's,\(.*\)\.o[:]*,\1.o dep/foo.dep:,g' < dep/foo.dep.$$ > dep/foo.dep;\
rm -rf dep/foo.dep.$$
gcc -E -MM  dep > dep/main.dep.$$;\
sed 's,\(.*\)\.o[:]*,\1.o dep/main.dep:,g' < dep/main.dep.$$ > dep/main.dep;\
rm -rf dep/main.dep.$$
gcc -E -MM  dep > dep/foo.dep.$$;\
sed 's,\(.*\)\.o[:]*,\1.o dep/foo.dep:,g' < dep/foo.dep.$$ > dep/foo.dep;\
rm -rf dep/foo.dep.$$
。。。
这样一直循环下去，求救各位，是什么原因呢？

xiaonanln_cu

1. ${wildcard *.c}

复制代码

一直以为是用小括号，$(wildcard *.c)，原来大括号也可以啊