Hi, Fred,

Here are my fixes for running your mknlist, nsort, and call under NeXTStep.
The primary problem is that NeXTStep has a funky version of mmap() in that
you have to use the Mach vm_allocate() routine to allocate memory before
call mmap().  Also, there is no munmap(), so I just use the Mach
vm_deallocate().  This all works well except in nsort where I had to add
an #ifdef section to write the sorted file back out to disk.  I tested my
changes on both an M68xxx NeXT and an Intel box running NeXTStep.  It works
under both NeXTStep 3.0 and 3.2.  I expect it will work under any version
of NeXT.

I also wanted to give you fat binaries of the executables that would run
under both M68K's and Intel machines, but none of the NeXT's I currently
have have the multiple architecture support loaded.  So, the best I can do
at this point is generate two sets of executables.

So, feel free to use, or not to use, this stuff as you see fit.  If you 
would like to make some changes, let me know and I'll give it a shot.

73,  Benjy, AC4XO
benjy@benjy.cc.vt.edu