First off, it will be easier with GCC.  There are a couple of places in
the code which use non-constants in array initializers, something only
GCC supports (as far as I know).  You can change them if you don't have
GCC.

If you don't have an ANSI-comformant C compiler, forget it, unless you
want to do a lot of work.

If you have System V Curses, make sure `-DSYSV' is in CFLAGS; otherwise
remove it.  You *must* have some version of Curses.  You may need to
add `-ltermcap' or `-ltermlib' to the link command.

If your machine supports unaligned memory accesses (i.e. reading a word
from an odd address), putting `-DUNALIGNED_MEMORY_ACCESS' in CFLAGS
will make the interpreter slightly faster.  Otherwise, remove it.  If
the interpreter gives you `bus errors' with it defined, your machine
probably can't deal; remove it, `make clean', and try again.


Now, type `make'.  You may need to fiddle with some #includes to get
things to compile.  If you have any other problems, please let me know.

If everything goes well, you should have an executable named `zterp'
now.


If you make any improvements to the code, or port it to some oddball
system, please let me know and send diffs.


Shar and enjoy!

--
- Charles Hannum, mycroft@ai.mit.edu