Very Computer

hello all, i'm sorry if this is the wrong newsgroup but this is the only one
i've found on my news server, if its the wrong place please direct me to the
right one

i'm trying to upgrade my kernel from 2.4.5 to 2.4.17
i have all the needed software upgraded
everything goes smoothly without any problems until i do "make modules"
this is the error i get:
sis_main.c: In function `sisfb_heap_init':
sis_main.c:1265: `HW_CURSOR_AREA_SIZE' undeclared (first use in this
function)
sis_main.c:1265: (Each undeclared identifier is reported only once
sis_main.c:1265: for each function it appears in.)
sis_main.c:1087: warning: unused variable `temp'
sis_main.c: In function `sisfb_post_setmode':
sis_main.c:1647: `IND_SIS_CRT2_WRITE_ENABLE' undeclared (first use in this
function)
make[3]: *** [sis_main.o] Error 1
make[3]: Leaving directory `/usr/src/linux/drivers/video/sis'
make[2]: *** [_modsubdir_sis] Error 2
make[2]: Leaving directory `/usr/src/linux/drivers/video'
make[1]: *** [_modsubdir_video] Error 2
make[1]: Leaving directory `/usr/src/linux/drivers'
make: *** [_mod_drivers] Error 2

i looks like the problem is in a video driver but i left the "video support"
part unchecked so i dont know why it tries to compile it

any ideas?

i just saw that sis_main.c belongs to a device called SiS that sits under
character devices
a quick look to .config showed that its not set
then why does make modules try to make it?