unresolved symbols in i2c module

[Thomas <spi...@so...>]

hey, i am trying to install lirc and get it to work with my hauppauge tv 
card, but when i insmod the module i get the following errors:

Using /lib/modules/2.4.17/misc/lirc_i2c.o
/lib/modules/2.4.17/misc/lirc_i2c.o: unresolved symbol lirc_unregister_plugin
/lib/modules/2.4.17/misc/lirc_i2c.o: unresolved symbol lirc_register_plugin

the kernel is one that i just got from kernel.org, im running slackware 7.1, 
but i have upgraded a lot of stuff.  if you need more info, just ask...

any help would be appreciated, thanks
spiral man
spi...@so...