Installation of binary XPCE/SWI-Prolog image

1) Get the images.  To install the binary distribution you need:

	xpce.<machine>.tgz
	xpcelib.tgz

2) Unpack the images:

	% gunzip < xpce.<machine>.tgz | tar xf -
	% gunzip < xpcelib.tgz | tar xf -
	
Produces a directory ./xpce-4.8.0 (about 7.5 MB)

3) Installation

	% cd xpce-4.8.0
	% ./install [executable]

Which will start  bin/xpce.base,  load  the   XPCE  library  and  dump a
SWI-Prolog saved state  of  the  system   to  `executable'  (default  in
bin/xpce).  To make  the  system  public,   link  or  move  bin/xpce and
bin/xpce-client to the  system  binary   directory.   For  example:  (as
super-user, from the xpce installation directory)

	% set here=$cwd
	% cd /usr/local/bin
	% ln -s $here/bin/xpce .
	% ln -s $here/bin/xpce-client .

4) Pce resource file

The X11 resources for  XPCE  are  in   the  file  Pce.   XPCE pushes the
environment variable $XAPPLRESDIR before opening the X11 connection.  It
is   therefore   no   longer   needed    to     copy    this   file   to
/usr/lib/X11/app-defaults.

