errors during compilation of 2.4.26

Hello,
I tried to compile (ggc-4.1.2) kernel-2.4.26 with om patch and get
following erros:

gcc -D__KERNEL__ -I/usr/src/linux-2.4.26/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -pipe -mpreferred-stack-boundary=2 -march=i686
-DKBUILD_BASENAME=main -c -o init/main.o init/main.c
In file included from /usr/src/linux-2.4.26/include/linux/kernel.h:15,
                 from /usr/src/linux-2.4.26/include/linux/wait.h:13,
                 from /usr/src/linux-2.4.26/include/linux/fs.h:12,
                 from
/usr/src/linux-2.4.26/include/linux/capability.h:17,
                 from /usr/src/linux-2.4.26/include/linux/binfmts.h:5,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:9,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/asm/byteorder.h:14: warning: type
qualifiers ignored on function return type
/usr/src/linux-2.4.26/include/asm/byteorder.h:30: warning: type
qualifiers ignored on function return type
In file included from
/usr/src/linux-2.4.26/include/linux/byteorder/little_endian.h:11,
                 from /usr/src/linux-2.4.26/include/asm/byteorder.h:65,
                 from /usr/src/linux-2.4.26/include/linux/kernel.h:15,
                 from /usr/src/linux-2.4.26/include/linux/wait.h:13,
                 from /usr/src/linux-2.4.26/include/linux/fs.h:12,
                 from
/usr/src/linux-2.4.26/include/linux/capability.h:17,
                 from /usr/src/linux-2.4.26/include/linux/binfmts.h:5,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:9,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/linux/byteorder/swab.h:160: warning: type
qualifiers ignored on function return type
/usr/src/linux-2.4.26/include/linux/byteorder/swab.h:173: warning: type
qualifiers ignored on function return type
/usr/src/linux-2.4.26/include/linux/byteorder/swab.h:186: warning: type
qualifiers ignored on function return type
/usr/src/linux-2.4.26/include/linux/byteorder/swab.h:200: warning: type
qualifiers ignored on function return type
In file included from /usr/src/linux-2.4.26/include/linux/prefetch.h:13,
                 from /usr/src/linux-2.4.26/include/linux/list.h:6,
                 from /usr/src/linux-2.4.26/include/linux/wait.h:14,
                 from /usr/src/linux-2.4.26/include/linux/fs.h:12,
                 from
/usr/src/linux-2.4.26/include/linux/capability.h:17,
                 from /usr/src/linux-2.4.26/include/linux/binfmts.h:5,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:9,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/asm/processor.h:75: error: array type has
incomplete element type
In file included from /usr/src/linux-2.4.26/include/linux/fs.h:323,
                 from
/usr/src/linux-2.4.26/include/linux/capability.h:17,
                 from /usr/src/linux-2.4.26/include/linux/binfmts.h:5,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:9,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/linux/ncp_fs_i.h:26: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp_fs_i.h:27: warning: 'packed'
attribute ignored for field of type '__u8[6]'
In file included from
/usr/src/linux-2.4.26/include/linux/ncp_mount.h:12,
                 from
/usr/src/linux-2.4.26/include/linux/ncp_fs_sb.h:12,
                 from /usr/src/linux-2.4.26/include/linux/fs.h:745,
                 from
/usr/src/linux-2.4.26/include/linux/capability.h:17,
                 from /usr/src/linux-2.4.26/include/linux/binfmts.h:5,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:9,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/linux/ncp.h:24: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:25: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:26: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:27: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:28: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:29: warning: 'packed'
attribute ignored for field of type '__u8[]'
/usr/src/linux-2.4.26/include/linux/ncp.h:37: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:38: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:39: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:40: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:41: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:42: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:43: warning: 'packed'
attribute ignored for field of type '__u8[]'
/usr/src/linux-2.4.26/include/linux/ncp.h:137: warning: 'packed'
attribute ignored for field of type '__u8'
/usr/src/linux-2.4.26/include/linux/ncp.h:138: warning: 'packed'
attribute ignored for field of type '__u8[256]'
/usr/src/linux-2.4.26/include/linux/ncp.h:174: warning: 'packed'
attribute ignored for field of type '__u8'
In file included from /usr/src/linux-2.4.26/include/asm/smp.h:17,
                 from /usr/src/linux-2.4.26/include/linux/smp.h:14,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:23,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/asm/mpspec.h:87: warning: 'packed'
attribute ignored for field of type 'unsigned char[6]'
In file included from /usr/src/linux-2.4.26/include/linux/sched.h:23,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/linux/smp.h:29: error: conflicting types
for 'smp_send_reschedule'
/usr/src/linux-2.4.26/include/asm/smp.h:42: error: previous declaration
of 'smp_send_reschedule' was here
In file included from /usr/src/linux-2.4.26/include/hpc/hpctask.h:13,
                 from /usr/src/linux-2.4.26/include/linux/sched.h:33,
                 from /usr/src/linux-2.4.26/include/linux/mm.h:4,
                 from /usr/src/linux-2.4.26/include/linux/slab.h:14,
                 from /usr/src/linux-2.4.26/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/usr/src/linux-2.4.26/include/hpc/defs.h:86: error: array type has
incomplete element type
In file included from /usr/src/linux-2.4.26/include/linux/unistd.h:9,
                 from init/main.c:17:
/usr/src/linux-2.4.26/include/asm/unistd.h:375: warning: conflicting
types for built-in function '_exit'
make: *** [init/main.o] Fehler 1

Any hints?
regards,
Oliver

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