Zaptel compile... depmod: Unresolved symbols - wct4xxp.o


Trying to compile zaptel-1.2 and get the following error:

depmod: *** Unresolved symbols in /lib/modules/2.4.27-2-386/misc/wct4xxp.o

System is Debian 2.4.27-2-386 on a VIA EPIA V board (VIA C3 CPU - 800 MHz)

I have a link /usr/src/linux pointing to the corresponding kernel-headers-2.4.27-2
Didn’t use the actual kernel-source as this threw up a range of similar “Unresolved symbol” errors. Also, I have compiled zlib-1.2.3

I did compile the kernel myself for the above CPU, network card works and I can modprobe zaptel (even the LED on the FXS and FXO ports on my TDM400P card light up).

Anybody with some ideas?