Logtalk 2.26.2 files.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1486 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2005-12-24 18:00:21 +00:00
parent f5002fa37f
commit 9f1b358c04
382 changed files with 8056 additions and 8866 deletions
--- a/Logtalk/scripts/NOTES
+++ b/Logtalk/scripts/NOTES
@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.25.1
+Release 2.26.2

 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -8,8 +8,8 @@ Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.

 This directory contains several scripts used for Logtalk packaging, 
 installation, and integration with Prolog compilers. Those with extension 
-.sh are shell scripts for MacOS X, Linux, and similar systems. Those with 
-extension .js are JScript command-line scripts for Windows; they require 
+".sh" are shell scripts for MacOS X, Linux, and similar systems. Those with 
+extension ".js" are JScript command-line scripts for Windows; they require 
 WSH 5.6 or later version to be installed and should be run using cscript.exe 
 from a DOS shell command line.

@@ -27,9 +27,9 @@ lgt_install.js
 	and by adding the directories %LOGTALKHOME%\scripts and %LOGTALKHOME%\xml 
 	to the system path environment variable (must be run from this directory 
 	by a user with administration privileges after decompressing the Logtalk 
-	distribution into its final destination; you will need to restart your 
-	computer in order to use the items created in the "Logtalk" program group 
-	due to the definition of new system environment variables)
+	distribution into its final destination; you must restart your computer 
+	after running this script in order to use the items on the "Logtalk"
+	program group due to the definition of new system environment variables)

 logtalk.spec
 	specification file for building Linux RPMs
@@ -58,7 +58,7 @@ compilers; they must be run by a user with administration privileges:

 make_ciaolgt.sh
 	makes a shell script named "ciaolgt" for running Logtalk with CIAO Prolog
-	(the first run of the ciaolgt script must be made as root or using sudo)
+	(the first run of the "ciaolgt" script must be made as root or using sudo)
 make_ciaolgt.js
 	makes a Windows shortcut named "Logtalk - CIAO" for running Logtalk with 
 	CIAO 1.10 (the first call to the shortcut must be made by a user with 
@@ -114,15 +114,23 @@ make_yaplgt.sh
 make_yaplgt.js
 	makes a Windows shortcut named "Logtalk - YAP" for running Logtalk with 
 	YAP (assumes that the Yap folder is installed in C:\Program Files; edit 
-	the path to the yap.exe executable in the script if necessary)
+	the path to the "yap.exe" executable in the script if necessary)

 make_xsblgt.sh
 	makes a shell script named "xsblgt" for running Logtalk with XSB (the 
-	first run of the xsblgt script must be made as root or using sudo; each 
-	user will need to rename the file configs/xsbXX.config to configs/xsb.P 
+	first run of the "xsblgt" script must be made as root or using sudo; each
+	user will need to rename the file configs/xsb.config to configs/xsb.P 
 	and make and edit a copy of the libpaths/libpaths.pl in order to replace 
 	all occurrences of the LOGTALKUSER environment variable with its value; 
 	the new file should also use the .P extension)
+make_xsbcvslgt.sh
+	similar to the script above but for running Logtalk with the XSB CVS 
+	version (each user will need to rename the file configs/xsbcvs.config 
+	to configs/xsbcvs.P)
+make_xsbcvslgt.js
+	similar to the script above but for running Logtalk with the XSB CVS 
+	version (assumes that the XSB folder is installed in C:\Program Files; 
+	edit the path to the "xsb.exe" executable in the script if necessary)

 makeall_lgt.sh
 	simple shell script for running all the make_*lgt.sh shell scripts in 
--- a/Logtalk/scripts/cleandist.sh
+++ b/Logtalk/scripts/cleandist.sh
@@ -2,7 +2,7 @@

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================
--- a/Logtalk/scripts/cplgtdirs.js
+++ b/Logtalk/scripts/cplgtdirs.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -17,7 +17,18 @@ if (WshSystemEnv.Item("LOGTALKHOME"))
 else if (WshUserEnv.Item("LOGTALKHOME"))
 	logtalk_home = WshUserEnv.Item("LOGTALKHOME")
 else {
-	WScript.Echo("Error! The environment variable LOGTALKHOME must be defined first!");
+	WScript.Echo("The environment variable LOGTALKHOME must be defined first!");
+	usage_help();
+	WScript.Quit(1);
+}
+
+var FSObject = new ActiveXObject("Scripting.FileSystemObject");
+
+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
 	usage_help();
 	WScript.Quit(1);
 }
@@ -34,11 +45,9 @@ else {
 	WScript.Echo("");
 }

-var fso = new ActiveXObject("Scripting.FileSystemObject");
-
-if (fso.FolderExists(logtalk_user)) {
-	WScript.Echo("Error! Logtalk directory already exists!");
-	WScript.Echo("Please rename it and run this script again.");
+if (FSObject.FolderExists(logtalk_user)) {
+	WScript.Echo("Error! Logtalk user directory already exists!");
+	WScript.Echo("Please rename it or delete it and run this script again.");
 	WScript.Echo("");
 	usage_help();
 }
@@ -48,17 +57,54 @@ WScript.Echo("");
 WScript.Echo("  " + logtalk_user);
 WScript.Echo("");

-fso.CreateFolder(logtalk_user);
+FSObject.CreateFolder(logtalk_user);

 WScript.Echo("Copying Logtalk files and directories...");
-fso.CopyFolder(logtalk_home + "\\configs", logtalk_user + "\\configs");
-fso.CopyFolder(logtalk_home + "\\contributions", logtalk_user + "\\contributions");
-fso.CopyFolder(logtalk_home + "\\examples", logtalk_user + "\\examples");
-fso.CopyFolder(logtalk_home + "\\libpaths", logtalk_user + "\\libpaths");
-fso.CopyFolder(logtalk_home + "\\library", logtalk_user + "\\library");
-fso.CopyFolder(logtalk_home + "\\xml", logtalk_user + "\\xml");
+FSObject.CopyFolder(logtalk_home + "\\configs", logtalk_user + "\\configs");
+FSObject.CopyFile(logtalk_user + "\\configs\\xsb.config", logtalk_user + "\\configs\\xsb.P");
+FSObject.CopyFile(logtalk_user + "\\configs\\xsbcvs.config", logtalk_user + "\\configs\\xsbcvs.P");
+FSObject.CopyFolder(logtalk_home + "\\contributions", logtalk_user + "\\contributions");
+FSObject.CopyFolder(logtalk_home + "\\examples", logtalk_user + "\\examples");
+FSObject.CopyFolder(logtalk_home + "\\libpaths", logtalk_user + "\\libpaths");
+FSObject.CopyFile(logtalk_user + "\\libpaths\\libpaths.pl", logtalk_user + "\\libpaths\\libpaths.P");
+FSObject.CopyFolder(logtalk_home + "\\library", logtalk_user + "\\library");
+FSObject.CopyFolder(logtalk_home + "\\xml", logtalk_user + "\\xml");

-WScript.Echo("Finished copying Logtalk files directories.");
+FSObject.DeleteFile(logtalk_user + "\\xml\\lgt2*.*");
+FSObject.DeleteFile(logtalk_user + "\\xml\\logtalk.dtd");
+FSObject.DeleteFile(logtalk_user + "\\xml\\logtalk.xsd");
+
+var link = WshShell.CreateShortcut(logtalk_user + "\\manuals.lnk");
+link.Description = "Shortcut to Logtalk documentation";
+link.TargetPath = logtalk_home + "\\manuals";
+link.Save();
+
+link = WshShell.CreateShortcut(logtalk_user + "\\xml\\lgt2html.js.lnk");
+link.Description = "Shortcut to lgt2html script";
+link.TargetPath = logtalk_home + "\\xml\\lgt2html.js";
+link.Save();
+
+link = WshShell.CreateShortcut(logtalk_user + "\\xml\\lgt2pdf.js.lnk");
+link.Description = "Shortcut to lgt2pdf script";
+link.TargetPath = logtalk_home + "\\xml\\lgt2pdf.js";
+link.Save();
+
+link = WshShell.CreateShortcut(logtalk_user + "\\xml\\lgt2xml.js.lnk");
+link.Description = "Shortcut to lgt2xml script";
+link.TargetPath = logtalk_home + "\\xml\\lgt2xml.js";
+link.Save();
+
+link = WshShell.CreateShortcut(logtalk_user + "\\xml\\logtalk.dtd.lnk");
+link.Description = "Shortcut to Logtalk DTD";
+link.TargetPath = logtalk_home + "\\xml\\logtalk.dtd";
+link.Save();
+
+link = WshShell.CreateShortcut(logtalk_user + "\\xml\\logtalk.xsd.lnk");
+link.Description = "Shortcut to Logtalk XML Schema";
+link.TargetPath = logtalk_home + "\\xml\\logtalk.xsd";
+link.Save();
+
+WScript.Echo("Finished copying Logtalk files and directories.");
 WScript.Echo("");
 WScript.Echo("You may need to edit the contents of the file:");
 WScript.Echo("");
--- a/Logtalk/scripts/cplgtdirs.sh
+++ b/Logtalk/scripts/cplgtdirs.sh
@@ -2,7 +2,7 @@

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================
@@ -21,6 +21,14 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if ! [ "$LOGTALKUSER" ]
 then
 	LOGTALKUSER=$HOME/logtalk
@@ -31,8 +39,8 @@ fi

 if [ -d "$LOGTALKUSER" ]
 then
-	echo "Error! Logtalk directory already exists!"
-	echo "Please rename it and run this script again."
+	echo "Error! Logtalk user directory already exists!"
+	echo "Please rename it or delete it and run this script again."
 	echo
 	exit 1
 fi
@@ -45,12 +53,18 @@ mkdir -p "$LOGTALKUSER"/libpaths
 mkdir -p "$LOGTALKUSER"/library
 mkdir -p "$LOGTALKUSER"/xml
 cp -RL "$LOGTALKHOME"/configs "$LOGTALKUSER"/
+ln -sf xsb.config "$LOGTALKUSER"/configs/xsb.P 
+ln -sf xsbcvs.config "$LOGTALKUSER"/configs/xsbcvs.P 
 cp -RL "$LOGTALKHOME"/contributions "$LOGTALKUSER"/
 cp -RL "$LOGTALKHOME"/examples "$LOGTALKUSER"/
 cp -RL "$LOGTALKHOME"/libpaths "$LOGTALKUSER"/
+sed 's_\$LOGTALKUSER_'$LOGTALKUSER'_' "$LOGTALKUSER"/libpaths/libpaths.pl > "$LOGTALKUSER"/libpaths/libpaths.P
 cp -RL "$LOGTALKHOME"/library "$LOGTALKUSER"/
 cp -RL "$LOGTALKHOME"/xml "$LOGTALKUSER"/
 chmod -R u+w "$LOGTALKUSER"
+rm -f "$LOGTALKUSER"/xml/lgt2*
+rm -f "$LOGTALKUSER"/xml/logtalk.dtd
+rm -f "$LOGTALKUSER"/xml/logtalk.xsd
 ln -sf "$LOGTALKHOME"/BIBLIOGRAPHY "$LOGTALKUSER"/BIBLIOGRAPHY
 ln -sf "$LOGTALKHOME"/INSTALL "$LOGTALKUSER"/INSTALL
 ln -sf "$LOGTALKHOME"/LICENSE "$LOGTALKUSER"/LICENSE
@@ -59,7 +73,12 @@ ln -sf "$LOGTALKHOME"/README "$LOGTALKUSER"/README
 ln -sf "$LOGTALKHOME"/RELEASE_NOTES "$LOGTALKUSER"/RELEASE_NOTES
 ln -sf "$LOGTALKHOME"/UPGRADING "$LOGTALKUSER"/UPGRADING
 ln -sf "$LOGTALKHOME"/manuals "$LOGTALKUSER"/manuals
-echo "Finished copying Logtalk files directories."
+ln -sf "$LOGTALKHOME"/xml/lgt2html.sh "$LOGTALKUSER"/xml/lgt2html
+ln -sf "$LOGTALKHOME"/xml/lgt2pdf.sh "$LOGTALKUSER"/xml/lgt2pdf
+ln -sf "$LOGTALKHOME"/xml/lgt2xml.sh "$LOGTALKUSER"/xml/lgt2xml
+ln -sf "$LOGTALKHOME"/xml/logtalk.dtd "$LOGTALKUSER"/xml/logtalk.dtd
+ln -sf "$LOGTALKHOME"/xml/logtalk.xsd "$LOGTALKUSER"/xml/logtalk.xsd
+echo "Finished copying Logtalk files and directories."
 echo
 echo "You may need to edit the \$LOGTALKUSER/libpaths/libpaths.pl file to match"
 echo "your Prolog compiler and operating-system requirements or to add your own"
--- a/Logtalk/scripts/debian/control
+++ b/Logtalk/scripts/debian/control
@@ -1,5 +1,5 @@
 Package: logtalk
-Version: 2.25.1
+Version: 2.26.2
 Section: languages
 Priority: optional
 Architecture: all
--- a/Logtalk/scripts/lgt_install.js
+++ b/Logtalk/scripts/lgt_install.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -111,7 +111,7 @@ link.Description = "Open Logtalk Upgrading instructions";
 link.TargetPath = WshShell.CurrentDirectory + "\\UPGRADING.txt";
 link.Save();

-WScript.Echo('Logtalk basic installation completed. You will need to restart in order');
+WScript.Echo('Logtalk basic installation completed. You will need to RESTART in order');
 WScript.Echo('to activate the new system environment variables and use the items in');
 WScript.Echo('the new Logtalk program group. See the Install and configuration file');
 WScript.Echo('for details on customizing your working environment.');
@@ -120,7 +120,7 @@ WScript.Echo('After restarting your computer, you may want to run some of the Pr
 WScript.Echo('integration scripts, which you will find on the same directory as this');
 WScript.Echo('installer script.');
 WScript.Echo('');
-WScript.Echo('Users should run the batch script cplgtdirs in order to copy the');
+WScript.Echo('Users must run the batch script cplgtdirs in order to copy the');
 WScript.Echo('Logtalk user-modifiable files to their home directories. The path');
 WScript.Echo('to the cplgtdirs, lgt2pdf, lgt2html, and lgt2xml batch scripts has');
 WScript.Echo('been added to the system path environment variable.');
--- a/Logtalk/scripts/lgt_install.sh
+++ b/Logtalk/scripts/lgt_install.sh
@@ -2,7 +2,7 @@

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================
@@ -23,20 +23,20 @@ echo
 echo "Installing Logtalk on $prefix ..."
 echo

-rm -rf $prefix/lgt2251
+rm -rf $prefix/lgt2262
 rm -f $prefix/logtalk

-mkdir $prefix/lgt2251
+mkdir $prefix/lgt2262

 cd ..
-cp -R * $prefix/lgt2251
+cp -R * $prefix/lgt2262

 cd $prefix
-chmod -R go-w,a+r lgt2251
-chmod a+x lgt2251
-chmod a+x lgt2251/scripts/*.sh
-chmod a+x lgt2251/xml/*.sh
-ln -sf lgt2251 logtalk
+chmod -R go-w,a+r lgt2262
+chmod a+x lgt2262
+chmod a+x lgt2262/scripts/*.sh
+chmod a+x lgt2262/xml/*.sh
+ln -sf lgt2262 logtalk

 mkdir -p bin
 cd bin
@@ -51,7 +51,7 @@ echo
 echo "You may want to run some of the Prolog integration scripts, which you"
 echo "will find on the same directory as this installer script."
 echo
-echo "Users should define the environment variable LOGTALKHOME pointing"
+echo "Users must define the environment variable LOGTALKHOME pointing"
 echo "to $prefix/logtalk and then run the shell script cplgtdirs"
 echo "in order to copy the Logtalk user-modifiable files to their home"
 echo "directories."
--- a/Logtalk/scripts/logtalk.spec
+++ b/Logtalk/scripts/logtalk.spec
@@ -1,11 +1,11 @@
 Name: logtalk
 Summary: Logtalk - Open source object-oriented extension to Prolog
-Version: 2.25.1
+Version: 2.26.2
 Release: 1
 License: Artistic License 2.0
 Group: Development/Languages
 Packager: Paulo Moura <pmoura@logtalk.org>
-Source: http://www.logtalk.org/files/lgt2251.tgz
+Source: http://www.logtalk.org/files/lgt2262.tgz
 BuildArchitectures: noarch
 URL: http://www.logtalk.org/
 Prefix: /usr/local
@@ -13,19 +13,19 @@ AutoReqProv: no
 %description
 Logtalk is an open source object-oriented extension to the Prolog programming language. Integrating logic programming with object-oriented and event-driven programming, it is compatible with most Prolog compilers. It supports both prototypes and classes. In addition, it supports component-based programming through category-based composition.
 %prep
-%setup -n lgt2251
+%setup -n lgt2262
 %build
 %install
-rm -rf /usr/local/lgt2251
+rm -rf /usr/local/lgt2262
 rm -f /usr/local/logtalk
-mkdir /usr/local/lgt2251
-cp -R * /usr/local/lgt2251
+mkdir /usr/local/lgt2262
+cp -R * /usr/local/lgt2262
 cd /usr/local
-chmod -R go-w,a+r lgt2251
-chmod a+x lgt2251
-chmod a+x lgt2251/scripts/*.sh
-chmod a+x lgt2251/xml/*.sh
-ln -sf lgt2251 logtalk
+chmod -R go-w,a+r lgt2262
+chmod a+x lgt2262
+chmod a+x lgt2262/scripts/*.sh
+chmod a+x lgt2262/xml/*.sh
+ln -sf lgt2262 logtalk
 cd bin
 ln -sf ../logtalk/scripts/cplgtdirs.sh cplgtdirs
 ln -sf ../logtalk/xml/lgt2pdf.sh lgt2pdf
@@ -34,24 +34,24 @@ ln -sf ../logtalk/xml/lgt2xml.sh lgt2xml
 %clean
 %files
 %defattr(-,root,users)
-%doc /usr/local/lgt2251/BIBLIOGRAPHY
-%doc /usr/local/lgt2251/INSTALL
-%doc /usr/local/lgt2251/LICENSE
-%doc /usr/local/lgt2251/QUICK_START
-%doc /usr/local/lgt2251/README
-%doc /usr/local/lgt2251/RELEASE_NOTES
-%doc /usr/local/lgt2251/UPGRADING
-/usr/local/lgt2251/compiler
-/usr/local/lgt2251/configs
-/usr/local/lgt2251/contributions
-/usr/local/lgt2251/examples
-/usr/local/lgt2251/libpaths
-/usr/local/lgt2251/library
-%docdir /usr/local/lgt2251/manuals
-/usr/local/lgt2251/manuals
-/usr/local/lgt2251/scripts
-/usr/local/lgt2251/wenv
-/usr/local/lgt2251/xml
+%doc /usr/local/lgt2262/BIBLIOGRAPHY
+%doc /usr/local/lgt2262/INSTALL
+%doc /usr/local/lgt2262/LICENSE
+%doc /usr/local/lgt2262/QUICK_START
+%doc /usr/local/lgt2262/README
+%doc /usr/local/lgt2262/RELEASE_NOTES
+%doc /usr/local/lgt2262/UPGRADING
+/usr/local/lgt2262/compiler
+/usr/local/lgt2262/configs
+/usr/local/lgt2262/contributions
+/usr/local/lgt2262/examples
+/usr/local/lgt2262/libpaths
+/usr/local/lgt2262/library
+%docdir /usr/local/lgt2262/manuals
+/usr/local/lgt2262/manuals
+/usr/local/lgt2262/scripts
+/usr/local/lgt2262/wenv
+/usr/local/lgt2262/xml
 /usr/local/logtalk
 /usr/local/bin/cplgtdirs
 /usr/local/bin/lgt2pdf
--- a/Logtalk/scripts/make_ciaolgt.js
+++ b/Logtalk/scripts/make_ciaolgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -23,6 +23,7 @@ var FSObject = new ActiveXObject("Scripting.FileSystemObject");

 if (!FSObject.FileExists(prolog_path)) {
 	WScript.Echo("Error! Cannot find ciaosh.cpx at the expected place!");
+	WScript.Echo("Please, edit the script and update the location of the ciaosh.cpx executable.");
 	WScript.Quit(1);
 }

@@ -40,6 +41,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin")) 
@@ -48,15 +58,16 @@ if (!FSObject.FolderExists(logtalk_home + "\\bin"))
 var f = FSObject.CreateTextFile(logtalk_home + "\\bin\\logtalk_ciao.pl", true);

 f.WriteLine(":- ensure_loaded('\$LOGTALKUSER/configs/ciao_aux.config').");
+f.WriteLine(":- set_prolog_flag(multi_arity_warnings, off).");
 f.WriteLine(":- ensure_loaded('\$LOGTALKHOME/compiler/logtalk.pl').");
 f.WriteLine(":- ensure_loaded('\$LOGTALKUSER/libpaths/libpaths.pl').");
 f.WriteLine(":- op(600, xfy, ::).");
-f.WriteLine(":- op(600,  fy, ::).");
-f.WriteLine(":- op(600,  fy, ^^).");
-f.WriteLine(":- op(200,  fy, +).");
-f.WriteLine(":- op(200,  fy, ?).");
-f.WriteLine(":- op(200,  fy, @).");
-f.WriteLine(":- op(200,  fy, -).");
+f.WriteLine(":- op(600, fy, ::).");
+f.WriteLine(":- op(600, fy, ^^).");
+f.WriteLine(":- op(200, fy, +).");
+f.WriteLine(":- op(200, fy, ?).");
+f.WriteLine(":- op(200, fy, @).");
+f.WriteLine(":- op(200, fy, -).");
 f.Close();

 var ProgramsPath = WshShell.SpecialFolders("AllUsersPrograms");
@@ -78,6 +89,12 @@ WScript.Echo('Start Menu Programs. Make sure that the environment variables');
 WScript.Echo('LOGTALKHOME and LOGTALKUSER are defined for all users wishing');
 WScript.Echo('to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('The first call to the shortcut must be made by a user with');
+WScript.Echo('administrative rights.');
+WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk - CIAO" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_ciaolgt.sh
+++ b/Logtalk/scripts/make_ciaolgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named ciaolgt for running Logtalk with CIAO..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -33,20 +42,24 @@ cd "$LOGTALKHOME"
 mkdir -p bin
 cd bin
 echo ":- ensure_loaded('\$LOGTALKUSER/configs/ciao_aux.config')." > logtalk_ciao.rc
+echo ":- set_prolog_flag(multi_arity_warnings, off)." >> logtalk_ciao.rc
 echo ":- ensure_loaded('\$LOGTALKHOME/compiler/logtalk.pl')." >> logtalk_ciao.rc
 echo ":- ensure_loaded('\$LOGTALKUSER/libpaths/libpaths.pl')." >> logtalk_ciao.rc
 echo ":- op(600, xfy, ::)." >> logtalk_ciao.rc
-echo ":- op(600,  fy, ::)." >> logtalk_ciao.rc
-echo ":- op(600,  fy, ^^)." >> logtalk_ciao.rc
-echo ":- op(200,  fy, +)." >> logtalk_ciao.rc
-echo ":- op(200,  fy, ?)." >> logtalk_ciao.rc
-echo ":- op(200,  fy, @)." >> logtalk_ciao.rc
-echo ":- op(200,  fy, -)." >> logtalk_ciao.rc
+echo ":- op(600, fy, ::)." >> logtalk_ciao.rc
+echo ":- op(600, fy, ^^)." >> logtalk_ciao.rc
+echo ":- op(200, fy, +)." >> logtalk_ciao.rc
+echo ":- op(200, fy, ?)." >> logtalk_ciao.rc
+echo ":- op(200, fy, @)." >> logtalk_ciao.rc
+echo ":- op(200, fy, -)." >> logtalk_ciao.rc
 echo "#/bin/sh" > ciaolgt
 echo "ciaosh -l \$LOGTALKHOME/bin/logtalk_ciao.rc" >> ciaolgt
 chmod a+x ciaolgt
 ln -sf $LOGTALKHOME/bin/ciaolgt $prefix/bin/ciaolgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
-echo "LOGTALKUSER in order to use the script."
+echo "Users must define the environment variables LOGTALKHOME and"
+echo "LOGTALKUSER in order to use the script. Users must run the"
+echo "the cplgtdirs script before using the ciaolgt script."
+echo
+echo "The first call to script the must be made as root or using sudo."
 echo
--- a/Logtalk/scripts/make_eclipselgt.js
+++ b/Logtalk/scripts/make_eclipselgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -12,7 +12,7 @@ if (WScript.Arguments.Unnamed.Length > 0) {

 WScript.Echo('');
 WScript.Echo('Creating a shortcut named "Logtalk - ECLiPSe" for running Logtalk with');
-WScript.Echo('ECLiPSe 5.8 (edit the script if you are using other version)...');
+WScript.Echo('ECLiPSe 5.8 (edit this script if you are using a different version)...');
 WScript.Echo('');

 var WshShell = new ActiveXObject("WScript.Shell");
@@ -23,6 +23,7 @@ var FSObject = new ActiveXObject("Scripting.FileSystemObject");

 if (!FSObject.FileExists(prolog_path)) {
 	WScript.Echo("Error! Cannot find eclipse.exe at the expected place!");
+	WScript.Echo("Please, edit the script and update the location of the eclipse.exe executable.");
 	WScript.Quit(1);
 }

@@ -40,6 +41,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin")) 
@@ -83,6 +93,9 @@ WScript.Echo('Start Menu Programs. Make sure that the environment variables');
 WScript.Echo('LOGTALKHOME and LOGTALKUSER are defined for all users wishing');
 WScript.Echo('to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk - ECLiPSe" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_eclipselgt.sh
+++ b/Logtalk/scripts/make_eclipselgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named eclipselgt for running Logtalk with ECLiPSe..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -44,6 +53,6 @@ echo "eclipse -b \$LOGTALKHOME/bin/logtalk_eclipse.rc" >> eclipselgt
 chmod a+x eclipselgt
 ln -sf $LOGTALKHOME/bin/eclipselgt $prefix/bin/eclipselgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/make_gplgt.js
+++ b/Logtalk/scripts/make_gplgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -23,6 +23,7 @@ var FSObject = new ActiveXObject("Scripting.FileSystemObject");

 if (!FSObject.FileExists(prolog_path)) {
 	WScript.Echo("Error! Cannot find gprolog.exe at the expected place!");
+	WScript.Echo("Please, edit the script and update the location of the gprolog.exe executable.");
 	WScript.Quit(1);
 }

@@ -40,6 +41,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin")) 
@@ -72,6 +82,9 @@ WScript.Echo('Start Menu Programs. Make sure that the environment variables');
 WScript.Echo('LOGTALKHOME and LOGTALKUSER are defined for all users wishing');
 WScript.Echo('to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk - GNU Prolog" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_gplgt.sh
+++ b/Logtalk/scripts/make_gplgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named gplgt for running Logtalk with GNU Prolog..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -35,10 +44,10 @@ cd bin
 echo ":- built_in." > logtalk_gp.pl
 cat ../compiler/logtalk.pl >> logtalk_gp.pl
 echo "#/bin/sh" > gplgt
-echo "gprolog --init-goal \"['$LOGTALKUSER/configs/gnu.config', '$LOGTALKHOME/bin/logtalk_gp.pl', '$LOGTALKUSER/libpaths/libpaths.pl']\"" >> gplgt
+echo "gprolog --init-goal \"['\$LOGTALKUSER/configs/gnu.config', '\$LOGTALKHOME/bin/logtalk_gp.pl', '\$LOGTALKUSER/libpaths/libpaths.pl']\"" >> gplgt
 chmod a+x gplgt
 ln -sf $LOGTALKHOME/bin/gplgt $prefix/bin/gplgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/make_plclgt.js
+++ b/Logtalk/scripts/make_plclgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -50,6 +50,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin"))
@@ -81,6 +90,9 @@ WScript.Echo('Start Menu Programs. Make sure that the environment variables');
 WScript.Echo('LOGTALKHOME and LOGTALKUSER are defined for all users wishing');
 WScript.Echo('to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk - K-Prolog" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_plclgt.sh
+++ b/Logtalk/scripts/make_plclgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named plclgt for running Logtalk with K-Prolog..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -40,6 +49,6 @@ echo "\$PLC/plc -h 2048k -l 1024k -g 2048k -e \"(consult('\\\$LOGTALKHOME/bin/lo
 chmod a+x plclgt
 ln -sf $LOGTALKHOME/bin/plclgt $prefix/bin/plclgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/make_qplgt.sh
+++ b/Logtalk/scripts/make_qplgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named qplgt for running Logtalk with Qu-Prolog..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -31,15 +40,14 @@ fi

 cd "$LOGTALKHOME"
 mkdir -p bin
-find . -name "*.lgt" -exec perl -pi -e "s/version is (\d)\.(\d)/version is '\1\.\2'/" {} \;
 cd configs
 cp qu.config qu.ql
 echo "fcompile('qu.ql', [assemble_only(true)]), load(qu). \
 chdir('../compiler/'), fcompile('logtalk.pl', [assemble_only(true), string_table(256)]), load(logtalk). \
-chdir('../libpaths/'), fcompile('libpaths.pl', [assemble_only(true)]), load(libpaths)." | qp -s 2048 -d 1024 -h 2000
+chdir('../libpaths/'), fcompile('libpaths.pl', [assemble_only(true)]), load(libpaths)." | qp -T 16 -s 2048 -d 1024 -h 2048
 qc -c qphook.ql
 cd ../bin
-qc -s 2048 -d 1024 -h 2000 -o qplgt ../configs/qphook.qo ../configs/qu.qo ../compiler/logtalk.qo  ../libpaths/libpaths.qo
+qc -T 16 -s 2048 -d 1024 -h 2048 -o qplgt ../configs/qphook.qo ../configs/qu.qo ../compiler/logtalk.qo  ../libpaths/libpaths.qo
 chmod a+x qplgt
 ln -sf $LOGTALKHOME/bin/qplgt $prefix/bin/qplgt
 rm ../configs/qu.ql
@@ -48,6 +56,6 @@ rm ../configs/qu.qo
 rm ../compiler/logtalk.qo
 rm ../libpaths/libpaths.qo
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/make_sicstuslgt.js
+++ b/Logtalk/scripts/make_sicstuslgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -23,6 +23,7 @@ var FSObject = new ActiveXObject("Scripting.FileSystemObject");

 if (!FSObject.FileExists(prolog_path)) {
 	WScript.Echo("Error! Cannot find spwin.exe at the expected place!");
+	WScript.Echo("Please, edit the script and update the location of the spwin.exe executable.");
 	WScript.Quit(1);
 }

@@ -40,6 +41,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin")) 
@@ -71,6 +81,9 @@ WScript.Echo('the Start Menu Programs. Make sure that the environment variables'
 WScript.Echo('LOGTALKHOME and LOGTALKUSER are defined for all users wishing');
 WScript.Echo('to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk - SICStus Prolog" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_sicstuslgt.sh
+++ b/Logtalk/scripts/make_sicstuslgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named sicstuslgt for running Logtalk with SICStus Prolog..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -41,6 +50,6 @@ echo "sicstus -l \$LOGTALKHOME/bin/logtalk_sicstus.rc" >> sicstuslgt
 chmod a+x sicstuslgt
 ln -sf $LOGTALKHOME/bin/sicstuslgt $prefix/bin/sicstuslgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/make_swilgt.js
+++ b/Logtalk/scripts/make_swilgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -23,6 +23,7 @@ var FSObject = new ActiveXObject("Scripting.FileSystemObject");

 if (!FSObject.FileExists(prolog_path)) {
 	WScript.Echo("Error! Cannot find plwin.exe at the expected place!");
+	WScript.Echo("Please, edit the script and update the location of the plwin.exe executable.");
 	WScript.Quit(1);
 }

@@ -40,6 +41,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin"))
@@ -78,6 +88,9 @@ WScript.Echo('Start Menu Programs. Make sure that the environment variables');
 WScript.Echo('LOGTALKHOME and LOGTALKUSER are defined for all users wishing');
 WScript.Echo('to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk -  SWI-Prolog" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_swilgt.sh
+++ b/Logtalk/scripts/make_swilgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named swilgt for running Logtalk with SWI-Prolog..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -46,6 +55,6 @@ esac
 chmod a+x swilgt
 ln -sf $LOGTALKHOME/bin/swilgt $prefix/bin/swilgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/make_xsblgt.sh
+++ b/Logtalk/scripts/make_xsblgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named xsblgt for running Logtalk with XSB..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -46,11 +55,9 @@ echo "xsb -e \"reconsult('\$LOGTALKHOME/bin/logtalkxsb.P').\"" >> xsblgt
 chmod a+x xsblgt
 ln -sf $LOGTALKHOME/bin/xsblgt $prefix/bin/xsblgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
-echo "LOGTALKUSER in order to use the script."
+echo "Users must define the environment variables LOGTALKHOME and"
+echo "LOGTALKUSER in order to use the script. Users must run the"
+echo "the cplgtdirs script before using the xsblgt script."
 echo
-echo "Users must change the extension of files \$LOGTALKUSER/configs/xsb.config"
-echo "and \$LOGTALKUSER/libpaths/libpaths.pl to '.P' before using the xsblgt"
-echo "script. In addition, users must edit the libpaths.P file to replace all"
-echo "occurrences of the LOGTALKUSER environment variable by its value."
+echo "The first call to the script must be made as root or using sudo."
 echo
--- a/Logtalk/scripts/make_yaplgt.js
+++ b/Logtalk/scripts/make_yaplgt.js
@@ -1,11 +1,11 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================

-var prolog_path = "C:\\Program Files\\Yap\\bin\\yap.exe";
+var prolog_path = "C:\\Yap\\bin\\yap.exe";

 if (WScript.Arguments.Unnamed.Length > 0) {
 	usage_help();
@@ -21,6 +21,7 @@ var FSObject = new ActiveXObject("Scripting.FileSystemObject");

 if (!FSObject.FileExists(prolog_path)) {
 	WScript.Echo("Error! Cannot find yap.exe at the expected place!");
+	WScript.Echo("Please edit the script and update the location of the yap.exe executable.");
 	WScript.Quit(1);
 }

@@ -40,6 +41,15 @@ else {
 	WScript.Quit(1);
 }

+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 logtalk_home = logtalk_home.replace(/\\/g, "\\\\");

 if (!FSObject.FolderExists(logtalk_home + "\\bin")) 
@@ -70,6 +80,9 @@ WScript.Echo('Done. The "Logtalk - YAP" shortcut was been added to the Start Men
 WScript.Echo('Programs. Make sure that the environment variables LOGTALKHOME and');
 WScript.Echo('LOGTALKUSER are defined for all users wishing to use the shortcut.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the');
+WScript.Echo('"Logtalk - YAP" shortcut.');
+WScript.Echo('');

 WScript.Quit(0);

--- a/Logtalk/scripts/make_yaplgt.sh
+++ b/Logtalk/scripts/make_yaplgt.sh
@@ -1,14 +1,15 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================

 echo
 echo "Creating a script named yaplgt for running Logtalk with YAP..."
+echo

 if ! [ "$LOGTALKHOME" ]
 then
@@ -17,13 +18,21 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
 	prefix="$1"
 fi

-if ! [ -d "$1" ]; then
+if ! [ -d "$prefix" ]; then
 	echo "Directory prefix does not exist!"
 	echo
 	exit 1
@@ -41,6 +50,6 @@ echo "yap -l \$LOGTALKHOME/bin/logtalk_yap.rc" >> yaplgt
 chmod a+x yaplgt
 ln -sf $LOGTALKHOME/bin/yaplgt $prefix/bin/yaplgt
 echo "Done. A link to the script was been created in $prefix/bin."
-echo "Users should define the environment variables LOGTALKHOME and"
+echo "Users must define the environment variables LOGTALKHOME and"
 echo "LOGTALKUSER in order to use the script."
 echo
--- a/Logtalk/scripts/makeall_lgt.js
+++ b/Logtalk/scripts/makeall_lgt.js
@@ -1,6 +1,6 @@
 // =================================================================
 // Logtalk - Object oriented extension to Prolog
-// Release 2.25.1
+// Release 2.26.2
 //
 // Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 // =================================================================
@@ -23,6 +23,17 @@ else {
 	WScript.Quit(1);
 }

+var FSObject = new ActiveXObject("Scripting.FileSystemObject");
+
+if (!FSObject.FolderExists(logtalk_home)) {
+	WScript.Echo("The environment variable LOGTALKHOME points to a non-existing directory!");
+	WScript.Echo("Its current value is: %LOGTALKHOME%");
+	WScript.Echo("The variable must be set to your Logtalk installation directory!");
+	WScript.Echo("");
+	usage_help();
+	WScript.Quit(1);
+}
+
 WScript.Echo('Creating shortcut Logtalk - CIAO...');
 WshShell.Run("cscript %LOGTALKHOME%\\scripts\\make_ciaolgt.js", true);
 	
@@ -41,6 +52,9 @@ WshShell.Run("cscript %LOGTALKHOME%\\scripts\\make_sicstuslgt.js", true);
 WScript.Echo('Creating shortcut Logtalk - SWI-Prolog...');
 WshShell.Run("cscript %LOGTALKHOME%\\scripts\\make_swilgt.js", true);

+WScript.Echo('Creating shortcut Logtalk - XSB CVS...');
+WshShell.Run("cscript %LOGTALKHOME%\\scripts\\make_xsbcvslgt.js", true);
+
 WScript.Echo('Creating shortcut Logtalk - YAP...');
 WshShell.Run("cscript %LOGTALKHOME%\\scripts\\make_yaplgt.js", true);

@@ -49,6 +63,9 @@ WScript.Echo('Done.  Links to the created scripts was been added to the Start Me
 WScript.Echo('Programs.   Make sure that the environment variables LOGTALKHOME and');
 WScript.Echo('LOGTALKUSER are defined for all users wishing to use the shortcuts.');
 WScript.Echo('');
+WScript.Echo('Users must run the batch script "cplgtdirs" before using the Logtalk -');
+WScript.Echo('Prolog integration scripts.');
+WScript.Echo('');
 WScript.Echo('If you get an unexpected failure to create a shortcut for one of the');
 WScript.Echo('above Prolog compilers, make sure that the Prolog compiler is properly');
 WScript.Echo('installed, consult the NOTES file on the scripts directory, and try to');
--- a/Logtalk/scripts/makeall_lgt.sh
+++ b/Logtalk/scripts/makeall_lgt.sh
@@ -1,8 +1,8 @@
-#! /bin/sh
+#!/bin/sh

 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.1
+## Release 2.26.2
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================
@@ -18,6 +18,14 @@ then
 	exit 1
 fi

+if ! [ -d "$LOGTALKHOME" ]; then
+	echo "The environment variable LOGTALKHOME points to a non-existing directory!"
+	echo "Its current value is: $LOGTALKHOME"
+	echo "The variable must be set to your Logtalk installation directory!"
+	echo
+	exit 1
+fi
+
 if [ -z "$1" ]; then
 	prefix=/usr/local
 else
@@ -30,57 +38,71 @@ if ! [ -d "$prefix" ]; then
 	exit 1
 fi

-./make_ciaolgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_ciaolgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "ciaolgt script created"
 else
 	echo "ciaolgt script creation failed"
 fi

-./make_eclipselgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_eclipselgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "eclipselgt script created"
 else
 	echo "eclipselgt script creation failed"
 fi

-./make_gplgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_gplgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "gplgt script created"
 else
 	echo "gplgt script creation failed"
 fi

-./make_plclgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_plclgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "plclgt script created"
 else
 	echo "plclgt script creation failed"
 fi

-./make_sicstuslgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_qplgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
+	echo "qplgt script created"
+else
+	echo "qplgt script creation failed"
+fi
+
+./make_sicstuslgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "sicstuslgt script created"
 else
 	echo "sicstuslgt script creation failed"
 fi

-./make_swilgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_swilgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "swilgt script created"
 else
 	echo "swilgt script creation failed"
 fi

-./make_xsblgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_xsblgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "xsblgt script created"
 else
 	echo "xsblgt script creation failed"
 fi

-./make_yaplgt.sh $prefix > /dev/null
-if [ $? ]; then
+./make_xsbcvslgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
+	echo "xsbcvslgt script created"
+else
+	echo "xsbcvslgt script creation failed"
+fi
+
+./make_yaplgt.sh $prefix > /dev/null 2> /dev/null
+if [[ $? -eq 0 ]]; then
 	echo "yaplgt script created"
 else
 	echo "yaplgt script creation failed"
@@ -89,7 +111,7 @@ fi
 echo
 echo "Done. Links to the created scripts can be found on $prefix/bin."
 echo "Make sure that the Prolog compilers are also available on your "
-echo "execution path.  Users should define the environment variables "
+echo "execution path.  Users must define the environment variables "
 echo "LOGTALKHOME and LOGTALKUSER in order to use the scripts."
 echo
 echo "If you get an unexpected failure to create a shortcut for one of the"