🚀 go-pugleaf

I'm trying to compile a program called "unsit" under NeXTStep 2.1
on an '030 cube.  This is a program that allows you to un-stuff
Macintosh StuffIt archives (from StuffIt version 1.5.1 and before)
under UNIX.  I have a NeXT binary that was compiled long long
ago (under NS1.0!) that still works, but the source was lost
in a disk crash.  I grabbed what I *think* is the same source
code ("unsit-15.shar") from the net (an "archie" search turned
up several dozen sites that had the same file, and nothing
newer, so I think this is the current version, even though
it's dated nearly 3 years ago now).  I tried to re-compile it
but the resulting executable reports checksum errors on StuffIt
archives that I *know* to be valid -- archives that the old
binary un-stuffs without problems.  Have I run afoul of some arcane
bug in the compiler or a library?  This program has been in circulation
for years now; I can't believe that I'm the first person to try to
use it on a NeXT.

I would be deeply grateful if someone who has had experience with
this program (successful or otherwise) would get in touch with me.
I'd appreciate email -- the volume of traffic in these groups is
huge -- but I'll also try to monitor the groups for a few days.

If someone wants source or executables or a sample archive that
illustrates the problem, let me know; I'll be happy to send them.

Thanks in advance for any assistance.
--Cameron Smith
  cameron@symcom.math.uiuc.edu