custom kernel

[ShashankBhide]

> Don't know why, but rpmbuild is leaving ARCH undefined. Thus, the build  
> process doesn't know which architecture the kernel is being built for.
> 
> Try invoking rpmbuild without the --target=i686 parameter.

When I build without the target, it says "error: Architecture is not 
included: i386".

Does this mean that I am building the kernel with the wrong ARCH?  I 
thought Pentium 4 is i686 compatible.
BTW uname -i shows i386

Thanks,
shashank