[Buildroot] How to build JFFS2 image?

[Чинков Андрей]

Hi.

I can not build JFFS2 image using buildroot.
My build attempts always crashes with different errors in 
.../project_build_mipsel/uclibc/linux-2.6.26.3:
errors are like smth unresolved symbol in object file or unknown type in 
C source file......

May be it is because I use "advanced linux kernel" configuration?

I have Ubuntu8.04 x86 host machine.
My target architecture is mipsel.

How can I build target JFFS2 image using buildroot and/or mkfs.jffs2 
command ?

Thanks.