🚀 go-pugleaf

I have GhostScript 1.0 of Aug 10 88.

I wrote a ega/vga driver for Xenix.  Would someone like it?  One thing
lacking in the gx_device_procs struct is a function that restores the
display to the mode that was in effect before you ran gs.  I added a
new field for this purpose.

The code gave Xenix's C compiler (which is really Microsoft C
5.something) a headache by typedefing structs that weren't defined.
In the end I managed to get around this by removing all the
"typedef struct foo_s foo" and putting "struct" in front of every "foo".
It wasn't pretty and I may have caused the following bugs in the process.

Some example .ps files cause core dumps.  I think there are two
problems.  The first is that if you try to show a space (e.g. book14.ps),
igs->path->first_subpath is null and as a result gfill dumps.  	I
verified this by removing the blanks and seeing that it worked.

The other dump happens in let[qv].ps.  It's also due to a null
first_subpath but I can't quite figure out what is happening.

If there have been any fixes that deal with this, or a more recent
release of ghostscript, please let me know.  If someone cares to take
the time to explain how the /space logic is suppose to work I would be
very grateful.