Zaptel Compilation Problems

Hi all, this is for my final year project in university, you can read about my idea here: … -a-phrase/

I’m having some problems getting the Zaptel card working.

I’m not a Linux user by nature, so finding it tough.
I’m getting this error when trying to compile zaptel

zaptel.c:6423: storage size of zt_fops' isn't known /usr/include/linux/proc_fs.h:193: warning:create_proc_read_entry’ declared `static’ but never defined
make: *** [zaptel.o] Error 1

Any help appriciated, spent the day working on this. Cheers.