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Dear SICStus Prolog user,

XPCE version 4.8.16 contains a brand new interface for SICStus Prolog 3.
This process describes the installation process.

PREREQUISITES:
==============

Before you start the installation of XPCE/SICStus, make sure to have the
following tools ready:

	* The GCC compiler or another supported compiler.  Both XPCE
	itself and the interface are written in ANSI-C, so for example
	the old SunOS 4.x cc compiler won't do the job.

	You find gcc on almost any major ftp-site, you can buy for
	only a few bucks in the local store on CD as well.

	* GNU-make, which you can obtain from the same source as GCC.
	Unless you want to modify a lot to the Makefiles, don't try
	anything else.

	* SICStus version 3 installed.

	* A disk with at least 25 MB available.

	* Some coffee.


BUILDING:
=========

	Step 1: Build libXPCE.a and xpce-client
	--------------------------------------

	* Unpack the XPCE source archive:

		% gunzip xpce-4.8.16.tar.gz | tar xvf -

	  which will create a xpce-4.8.16 directory below the working
	  directory.

	* Make a directory for your architecture.  So, if you using a
	SUN with SunOS 4.1.x, do:

		% cd xpce-4.8.16
		% mkdir sunos4
		% cd sunos4

	* Configure and make the library:

		% ../src/configure --without-pl
		% make

	* If all is right, you will end up with libXPCE.a and
	  xpce-client in the current directory.  You may copy xpce-client
          to a public place:

		% cp xpce-client /usr/local/bin
		% chmod 755 /usr/local/bin/xpce-client

	NOTE: If you have XPCE build for SWI-Prolog, you can simply
	skip step 1.

	Step 2: Preparing the XPCE/SICStus Prolog files
	-----------------------------------------------

	* Change to the sicstus directory:

		% cd ../sicstus

	* Edit the Makefile and change SP_PATH to point to the
	  SICStus home directory.

	* Type
		
		% make

	  to create the XPCE/Prolog directory structure in the SICStus
	  library and copy the library and other resource files.

	Step 3: Build the interface
	---------------------------

	* Change to sicstus/src:

		% cd src

	* Edit Makefile to change the variables indicated in the
	  Makefile
	
	* Make the interface, .ql files, emulator and saved-state
 	  using:

		% make