[请教]内核编译出错--类型冲突

gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i686 -c -o init/main.o init/main.c
In file included from /usr/src/linux/include/linux/prefetch.h:13,
from /usr/src/linux/include/linux/list.h:6,
from /usr/src/linux/include/linux/wait.h:14,
from /usr/src/linux/include/linux/fs.h:12,
from /usr/src/linux/include/linux/capability.h:17,
from /usr/src/linux/include/linux/binfmts.h:5,
from /usr/src/linux/include/linux/sched.h:9,
from /usr/src/linux/include/linux/mm.h:4,
from /usr/src/linux/include/linux/slab.h:14,
from /usr/src/linux/include/linux/proc_fs.h:5,
from init/main.c:15:
/usr/src/linux/include/asm/processor.h:73: 错误：数组元素的类型不完全
In file included from /usr/src/linux/include/linux/fs.h:201,
from /usr/src/linux/include/linux/capability.h:17,
from /usr/src/linux/include/linux/binfmts.h:5,
from /usr/src/linux/include/linux/sched.h:9,
from /usr/src/linux/include/linux/mm.h:4,
from /usr/src/linux/include/linux/slab.h:14,
from /usr/src/linux/include/linux/proc_fs.h:5,
from init/main.c:15:
/usr/src/linux/include/asm/byteorder.h:14: 警告：忽略函数返回类型的类型限定
/usr/src/linux/include/asm/byteorder.h:28: 警告：忽略函数返回类型的类型限定
In file included from /usr/src/linux/include/linux/byteorder/little_endian.h:11, from /usr/src/linux/include/asm/byteorder.h:45,
from /usr/src/linux/include/linux/fs.h:201,
from /usr/src/linux/include/linux/capability.h:17,
from /usr/src/linux/include/linux/binfmts.h:5,
from /usr/src/linux/include/linux/sched.h:9,
from /usr/src/linux/include/linux/mm.h:4,
from /usr/src/linux/include/linux/slab.h:14,
from /usr/src/linux/include/linux/proc_fs.h:5,
from init/main.c:15:
/usr/src/linux/include/linux/byteorder/swab.h:132: 警告：忽略函数返回类型的类型 限定
/usr/src/linux/include/linux/byteorder/swab.h:145: 警告：忽略函数返回类型的类型 限定
/usr/src/linux/include/linux/byteorder/swab.h:159: 警告：忽略函数返回类型的类型 限定
In file included from /usr/src/linux/include/linux/unistd.h:9,
from init/main.c:17:
/usr/src/linux/include/asm/unistd.h:345: 警告：内建函数 ‘_exit’ 类型冲突
make: *** [init/main.o] 错误 1

请教 如何解决 谢谢