Juan, please, add kernel configs to kernel-source instead of current config.def. arch/i586/config.up, config.smp, config,secure etc. There is little overhead (all these configs are available during built anyway).
Doing this will make kernel-source self-contained and allow users to recompile any Mandrake kernel flavor without need install corr. kernel just to get /boot/config-XXX. (of course, /boot/config-XXX may continue to be available, it is still useful). much thanks -andrej