[tlug] kernel compiling problem

["Mario Luoni" <luoni@example.com>]

recently i have been trying to compile 2.4.17 and 2.4.16. however, at some
point i always get a:

in .../linux/kernel_stat.h: in function 'kstat-irqs':
in .../linux/kernel_stat.h:48: 'smp_num_cpus' undeclared

although i certainy did _not_ choose multiprocessor support. if i do,
everything works just fine. however, i don't want to do so because according
to the config help smp slows down the machine if there is just one
processor.

has somebody had the same problem and found a solution?

-mario