核心模块编译问题求救

#include <linux/kernel.h>
#include <linux/module.h>
MODULE_LICENSE("Dual BSD/GPL");
static int hello_init(void)
{
    printk(KERN_ALERT "Hello, world\n");
    return 0;
}
static void hello_exit(void)
{
    printk(KERN_ALERT "Goodbye, cruel world\n");
}


gcc -O2 -Wall -DMODULE -D__KERNEL__ -I/usr/src/kernels/2.6.18-1.2798.fc6-i586/include -c wtfire.c -o wtfire.o
In file included from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/asm/thread_info.h:16,
                from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/thread_info.h:21,
                from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/preempt.h:9,
                from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/spinlock.h:49,
                from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/capability.h:45,
                from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/sched.h:44,
                from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/module.h:9,
                from wtfire.c:2:
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/asm/processor.h:80: 错误：‘CONFIG_X86_L1_CACHE_SHIFT’ 未声明 (不在函数 内)
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/asm/processor.h:80: 错误：要求的对齐边界不是常量
在包含自 /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/sched.h：49 的文件中，
                从 /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/module.h：9，
                从 wtfire.c：2:
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/jiffies.h:33:3: 错误：#error You lose.
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/jiffies.h:210:31: 错误：#if 中用零做除数
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/jiffies.h:210:31: 错误：#if 中用零做除数
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/jiffies.h:210:31: 错误：#if 中用零做除数
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/jiffies.h:210:31: 错误：#if 中用零做除数


我为什么就有这么多错，我用的是2.6.18 的核心

后面还少了两行吧，module_init(..............

同问

我重新安装了下系统现在不报那错了，莫名奇妙报了这么多错，连系统文件都有问题，头都昏了。
gcc -Wall -g -O2 -I /usr/src/kernels/2.6.18-1.2798.fc6-i586/include -c fire.c
In file included from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/asm/thread_info.h:16,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/thread_info.h:21,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/preempt.h:9,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/spinlock.h:49,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/capability.h:45,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/sched.h:44,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/module.h:9,
                 from fire.c:4:
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/asm/processor.h:80: 错误：要求的对齐边界不是常量
In file included from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/list.h:8,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/lockdep.h:12,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/spinlock_types.h:12,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/spinlock.h:78,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/capability.h:45,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/sched.h:44,
                 from /usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/module.h:9,
                 from fire.c:4:
/usr/src/kernels/2.6.18-1.2798.fc6-i586/include/linux/prefetch.h: 在函数 ‘prefetch_range’ 中：
下面还有很多

后面加了两行，module_init(.............. 也一样

搞定了，难道就没有人知道吗，就是编译连接库文件路径不对

正确的路径是什么？我也有这问题。

/lib/modules/2.6.18-1.2798.fc6/build