unresloved systems /drm/sis.o

["Joel n.solanki" <zealous@bonbon.net>]

Dear kernel gurus..

My system is Redhat 9.0 
I have compiled 2.4.21 kernel downloaded from kernel.org
all things went good according to my choice.
But when doing make modules_install i got the error for Unresolved
sysmbols.

Result of depmod -a


[root@joel root]# depmod -a
depmod: *** Unresolved symbols in
/lib/modules/2.4.21/kernel/drivers/char/drm/sis.o


So what should i enable in this kernel so that i can not see error
again.
Searched for this error on google but cant find appropriate answer.
it says "SIS DRM requires SIS frame buffer, known problem"

but i didnt got solution from above sentence. i am very new to kernel
compilation.

Any ideas,

Regards,
Joel