Ghostscript is made up of two parts, the executable itself, gs.Z, and
the library files lib.tar.Z (which go in /usr/local/lib/ghostscript).
The library files include a good deal of postscript initialization code,
and you should make sure that you have matching parts.  As of version
2.5.2, gs will verify this when it starts (or so I'm told, anyway).

Fonts, which are in fonts.tar.Z, go in /usr/local/lib/ghostscript/fonts.
Uncompressed, this tar file gives about 3M of fonts; however, you don't
have to keep a font if you don't actually use it.  If a font can't be
found, gs will substitute the font "Ugly".

When using the 3b1 display, you might find the -dNOPAUSE option useful.
	$ function gs3b1 { gs -dNOPAUSE "$@" quit.ps; }

To build gs yourself, make sure that you use the flags -DUSG -D__SVR3
and that the variable PLATFORM is set to sysv_.  You should use gcc,
since there's a optimization using an "asm" instruction.  The code is
ANSI, but I believe there are provisions for converting it for use with
non-ANSI compilers.  There is a version of gdev3b1.c included with the
gs 2.5.2 distribution; the version in this directory is somewhat newer
and includes a help screen.  You can get a head start on the compilation
by getting the .o files in gs-obj.tar.Z.  Then, say, changing the included
devices won't take so long.

The unlinked .o files are in gs-obj.tar.Z.  Note that the files
gdev3b1.c and gs-obj.tar.Z will correspond.  The binary gs.Z was made
by linking the .o files in gs-obj.tar.Z.  However, it's possible that
I'll put the .o files into the archive some time before I actually link
and update the gs binary itself.  Gs was cross-compiled with gcc version
2.2.2.  If you're running gcc 2.x on your 3b1, you can link gs with
	gnutar Zxvf gs-obj.tar.Z
	gcc -s -shlib -o gs *.o -lm
If not, you can still link gs, but you need to have the extra library
libgcc.a used by gcc 2.x.  To do this, get libgcc?.tar.Z from the
directory pub/3b1/gcc2-objects/.  Then
	gnutar Zxvf libgcc1.tar.Z	# contains .c files to be compiled
	cc -O -c *.c			#   with the native cc
	gnutar Zxvf libgcc2.tar.Z	# contains cross-compiled .o files
	ar cr libgcc.a *.o
	rm *.[oc]
	gnutar Zxvf gs-obj.tar.Z
	cc -s -o gs *.o libgcc.a -lm

You can use the Utopia and Charter fonts with groff.  The necessary groff
font description files are in devps.tar.Z.  The standard fonts provided
with ghostscript are not of the same quality.  Once the files in devps.tar.Z
are installed, you can substitute the Utopia or Charter font family by
changing the family in the devps/DESC file to U or CH, or by using -fU
or -fCH when running groff.