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SubjectWhats the problem

I am unable to compile the following code, can anyone say whats the
problem :

The main error msg is like the following:

parse error before `EXPORT_SYMTAB_not_defined'
warning: type defaults to `int' in declaration of
`EXPORT_SYMTAB_not_defined'
warning: data definition has no type or storage class

==================================
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/unistd.h>
#include <linux/modversions.h>

int init_module()
{
printk("Hello, World\n");
return 0 ;
}

int show_mystate(void)
{
unsigned long state ;
state = current->state ;
printk("%x\n",state);
return 0 ;
}

EXPORT_SYMBOL(show_mystate);

void cleanup_module()
{
printk("Goodbye\n");
}

=============================================
The makefile

CC=gcc
MODCFLAGS=-Wall -DMODULE -D__KERNEL__ -DLINUX

showinfo.o : showinfo.c

$(CC) $(MODCFLAGS) -c showinfo.c


Thanks
Sourav
--------------------------------------------------------------------------------
SOURAV SEN MSc(Engg.) CSA IISc BANGALORE URL : www2.csa.iisc.ernet.in/~sourav
ROOM NO : N-78 TEL :(080)309-2454(HOSTEL) (080)309-2906 (COMP LAB)
--------------------------------------------------------------------------------


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