Kernel build fails unless SMP enabled...?

[Sivar]

When I build the latest Gentoo performance enhanced kernel, as well as the one from 2 weeks ago if it has been updated, the build fails unless I have support for multiple processors enabled. Weird. My motherboard currently has only one CPU in it, and I would like to be able to use advanced power management (which is disabled for SMP systems).
I get the following error:


from /usr/src/linux-2.4.19-gentoo-r5/include/linux/module.h:21,
from ksyms.c:14:
/usr/src/linux-2.4.19-gentoo-r5/include/linux/modules/ksyms.ver:550: warning: `del_timer_sync' redefined
/usr/src/linux-2.4.19-gentoo-r5/include/linux/timer.h:30: warning: this is the location of the previous definition
In file included from /usr/src/linux-2.4.19-gentoo-r5/include/linux/interrupt.h:45,
from ksyms.c:21:
/usr/src/linux-2.4.19-gentoo-r5/include/asm/hardirq.h:37: warning: `synchronize_irq' redefined
/usr/src/linux-2.4.19-gentoo-r5/include/linux/modules/i386_ksyms.ver:100: warning: this is the location of the previous definition
In file included from ksyms.c:17:
/usr/src/linux-2.4.19-gentoo-r5/include/linux/kernel_stat.h: In function `kstat_irqs':
/usr/src/linux-2.4.19-gentoo-r5/include/linux/kernel_stat.h:46: `smp_num_cpus' undeclared (first use in this function)
/usr/src/linux-2.4.19-gentoo-r5/include/linux/kernel_stat.h:46: (Each undeclared identifier is reported only once
/usr/src/linux-2.4.19-gentoo-r5/include/linux/kernel_stat.h:46: for each function it appears in.)
make[2]: *** [ksyms.o] Error 1
make[2]: Leaving directory `/usr/src/linux-2.4.19-gentoo-r5/kernel'
make[1]: *** [first_rule] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.19-gentoo-r5/kernel'
make: *** [_dir_kernel] Error 2


Would anyone have an idea of how to fix this?
Thanks ahead of time
_________________
The greatest deeds are still undone, the greatest songs are still unsung...

[Deech]

Hi Sivar,

I think here's you're answer: https://forums.gentoo.org/viewtopic.php?t=475&highlight=mrproper

greetz,
deech