Troubles in 'make'ing Hack 1.0.3

[Joseph Judge]

I have been having a h*ll of a time trying to get this program
to compile. Everything works fine until ...
When it gets to cc'ing hack.o_init.c (which has an include for def.objects.h)
it blows up!!!!
The lines it has trouble on are the ones with NULL in them. It seems that
there is a stuct'ure being initialized (defined in def.objclass.h called
obj[] or something). The first 3 fields of this struct'ure are char *pointers
(declared like: char *oc_descr)
In the initialization (where it blows) The first is given a string (like :
"Object Name") and the next two are NULL's)

I tried everything!!! I #defined NULL from "this is a test" to "\0" to
(char *)0 to ((char *) 0) to "" to '' to '\0', etc

I am totally sure that it is blowing on the NULL because there are 2 error
messages on each of the lines that have 2 NULL's

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Any Hack guru's that have any ideas???

HELP
This is driving me nuts!

cc -O -c hac.o_init.c

def.objects.h/:11: no field initialization