I downloaded buildroot.gz from http://www.uclibc.org/cgi-bin/cvsweb/buildroot
by clicking "Download tarball".

This is to create uclibc toolchain.

run make:

...
patching file include/linux/kernel_stat.h
patching file include/linux/sched.h
patching file kernel/acct.c
patching file kernel/fork.c
patching file kernel/info.c
patching file kernel/timer.c
patching file mm/oom_kill.c

Applying /home/tcma/src/buildroot/sources/kernel-patches/089-no-touch-makedep.bz2 using bzip2:
patching file scripts/mkdep.c

Applying /home/tcma/src/buildroot/sources/kernel-patches/100_VERSION.bz2 using bzip2:
patching file Makefile
Hunk #1 FAILED at 1.
1 out of 1 hunk FAILED -- saving rejects to file Makefile.rej
Patch failed! Please fix /home/tcma/src/buildroot/sources/kernel-patches/100_VERSION.bz2!
make: *** [/home/tcma/src/buildroot/build_i386/linux-2.4.27-tcma/.unpacked] Error 1

Makefile.rej is as follows:
***************
*** 1,7 ****
VERSION = 2
PATCHLEVEL = 4
SUBLEVEL = 26
- EXTRAVERSION =

KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) $(EXTRAVERSION)

--- 1,7 ----
VERSION = 2
PATCHLEVEL = 4
SUBLEVEL = 26
+ EXTRAVERSION = -erik

KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) $(EXTRAVERSION)

How to fix this problem?