모듈 컴파일시 에러가 발생하네요

모듈 프로그래밍 연습 중에 연습예제에서 에러가 나네요.
무슨 문젠지 도움 부탁드립니다.

커널 모드에서 모듈을 적재해 hello 문자를 출력하려고 합니다.
module1.c, Makefile 파일은 아래와 같습니다. 에러도 복사해 넣었습니다.

답변 기다리겠습니다.

커널 버젼 : 2.6.16
gcc 버젼 : 4.0

module1.c
------------------------------------------------------------------------------------
#include
#include

/*
#ifdef CONFIG_MODVERSIONS
#define MODVERSIONS
#include
#endif
*/

int init_module(void)
{
printk("hello!!\n");

return 0;
}

void cleanup_module(void)
{
printk("bye!!\n");
}
---------------------------------------------------------------------------------------------

Makefile
===================================================================
CC = gcc

KERNELDIR = /usr/src/linux
CFLAGS = -D__KERNEL__ -DMODULE -I$(KERNELDIR)/include -g -Wall

all : module1.o

mudule1.0 : module1.c
$(CC) $(CFLAGS) -c module1.c

clean :
rm -f core module1.o
====================================================================

에러메시지
====================================================================
root@beggarstar:/home/soo/workspace/embeded/homework2# make
gcc -D__KERNEL__ -DMODULE -I/usr/src/linux/include -g -Wall -c -o module1.o module1.c
In file included from /usr/src/linux/include/linux/sched.h:20,
from /usr/src/linux/include/linux/module.h:10,
from module1.c:1:
/usr/src/linux/include/asm/semaphore.h: In function ‘down’:
/usr/src/linux/include/asm/semaphore.h:105: error: syntax error before ‘KBUILD_BASENAME’
/usr/src/linux/include/asm/semaphore.h: In function ‘down_interruptible’:
/usr/src/linux/include/asm/semaphore.h:130: error: syntax error before ‘KBUILD_BASENAME’
/usr/src/linux/include/asm/semaphore.h: In function ‘down_trylock’:
/usr/src/linux/include/asm/semaphore.h:155: error: syntax error before ‘KBUILD_BASENAME’
/usr/src/linux/include/asm/semaphore.h: In function ‘up’:
/usr/src/linux/include/asm/semaphore.h:179: error: syntax error before ‘KBUILD_BASENAME’
make: *** [module1.o] 오류 1
=====================================================================