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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1858 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
169 lines
7.0 KiB
Plaintext
169 lines
7.0 KiB
Plaintext
=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.29.5
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Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
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=================================================================
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The recommended way of installing Logtalk is to use, whenever possible, one
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of the provided installers. This file contains detailed instructions for
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manual installation and configuration of Logtalk. You should also consult
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the "scripts/NOTES.txt" file for a description of a set of shell scripts
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that might be used for Logtalk installation on some operating-systems and
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for easy Logtalk integration with popular Prolog compilers.
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Note that the broad compatibility of Logtalk, both with Prolog compilers and
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operating-systems, together with all the possible user scenarios, means that
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installation can vary from very simple by running a couple of scripts to the
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need of patching both Logtalk and Prolog compilers to workaround the lack of
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strong Prolog standards.
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1. LOGTALK BASIC INSTALLATION
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Installing Logtalk can be as simple as decompressing the downloaded archive
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and copying the resulting directory to a suitable location. This location
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depends on the working environment and on the number of users. The Logtalk
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directory can reside in any user accessible location. Whenever possible, it
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is recommended that Logtalk be installed by a user with administrative rights,
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as described below. This leads to a setup where each Logtalk user may freely
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try and modify the provided examples, library, and configuration files with
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the option of, at any time, restoring the files to its original state by
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simply running one of the provided scripts.
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* Installing for a single user with no administrative rights:
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In the case of a single user with no administrative rights, the Logtalk
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directory may simply be copied to the user home directory.
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* Installing for one or more users by a user with administrative rights:
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In the case of installation by a user with administrative rights, the Logtalk
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directory can be copied to any location that its accessible by all the users
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(assuming that copying the Logtalk directory to each user home directory is,
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for some reason, not feasible or desired).
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The "scripts" sub-directory contains shell scripts for easy installation of
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Logtalk on MacOS X, Windows, Linux, and Unix-like (POSIX) operating systems
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(see the "scripts/NOTES.txt" file for details).
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>> POSIX systems installation (starting from the Logtalk directory):
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% cd scripts
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% sudo ./lgt_install.sh
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>> Windows installation (starting from the Logtalk directory):
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C:\logtalk> cd scripts
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C:\logtalk> cscript lgt_install.js
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RESTART
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The "scripts/lgt_install.*" installation scripts make all files read-only in
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order to avoid user tempering. This is a convenient setup for computer labs,
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given that making directories world-writable is a security risk.
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2. SETTING LOGTALK ENVIRONMENT VARIABLES
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You need to set two environment variables, LOGTALKHOME and LOGTALKUSER. The
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environment variable LOGTALKHOME should point to the Logtalk installation
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directory. The environment variable LOGTALKUSER should point to a directory
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in your home directory where you want to store the user-specific Logtalk files
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(for example, ~/logtalk). Both environment variables may be set for all users
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by a user with administration privileges. The two environment variables can
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have the same value if you are the only Logtalk user on your computer and if
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you have full permissions to the Logtalk installation directory. In addition,
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you may want to add the Logtalk sub-directory "xml", which contains useful
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scripts for processing XML documenting files, to your execution path.
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>> POSIX systems:
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If you use a csh shell, add the following line to your ~/.cshrc file:
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setenv LOGTALKHOME /your/logtalk/installation/directory
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setenv LOGTALKUSER $HOME/logtalk
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setenv PATH $PATH:$LOGTALKHOME/xml:$LOGTALKHOME/scripts
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If you use a bash shell, add the following lines to your ~/.profile file:
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LOGTALKHOME=/your/logtalk/installation/directory
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LOGTALKUSER=$HOME/logtalk
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PATH=$PATH:$LOGTALKHOME/xml:$LOGTALKHOME/scripts
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export PATH LOGTALKHOME LOGTALKUSER
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When using the provided shell script for installing Logtalk, a symbolic link
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to the Logtalk installation directory is automatically created. The link is
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named "logtalk". In this case, you may use this symbolic link to define the
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LOGTALKHOME environment variable in order to avoid breaking it when upgrading
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Logtalk.
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>> Windows systems:
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In Windows 2000/XP, environment variables are defined using the System
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properties control panel. If you are a system administrator, the "scripts/
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lgt_install.js" JScript install script sets the LOGTALKHOME environment
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variable for all users and also sets the LOGTALKUSER environment variable
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for the administrator user running the script.
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3. COPYING THE LOGTALK USER-MODIFIABLE FILES TO USERS HOME DIRECTORIES
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If you installed Logtalk on your home directory, then skip this step if you
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have set both Logtalk environment variables (LOGTALKHOME and LOGTALKUSER) to
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point to the same directory.
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Each user must make a local copy of the Logtalk user-modifiable files to its
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home directory. This setup allows each user to easily and independently
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customize Logtalk to its needs. These copies can be easily made by instructing
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end-users to simply run the shell scripts "cplgtdirs.*" (which are described
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in the "scripts/NOTES.txt" file).
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>> POSIX systems:
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% cplgtdirs
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>> Windows:
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C:\> cplgtdirs
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The local copies made by the "cplgtdirs" scripts have both read and write
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permissions for the user running the script. When used with one of the
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Prolog compilers for which an integration script is provided on the "scripts"
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directory, this setup as the advantage of allowing each end-user to
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independently customize default compilation options and library paths.
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4. CREATING NEW PROLOG TOP-LEVELS FOR AUTOMATIC LOADING OF LOGTALK
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Most Prolog compilers allows the user to define an initialization file that
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is automatically consulted at startup. This initialization file may contain
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directives for loading other files, such as the Logtalk configuration file
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and the Logtalk compiler. The "$LOGTALKHOME/scripts" sub-directory contains
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several scripts (named "make_*lgt.*") for automating the creation of these
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initialization files for some Prolog compilers. In addition, be sure to read
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the "configs/NOTES.txt" file notes on the Prolog compilers that you intend to
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use. There are also "makeall_lgt.*" scripts that try to run all the individual
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"make_*lgt.*" scripts:
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>> POSIX systems:
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% cd $LOGTALKHOME/scripts
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% sudo ./makeall_lgt.sh
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>> Windows:
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C:\> cd %LOGTALKHOME%\scripts
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C:\> cscript makeall_lgt.js
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This assumes that your favorite Prolog compilers are supported by the
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"make_*lgt.*" scripts. If that is not the case, don't worry: just follow
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the steps described in the "QUICK_START.txt" file.
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5. CUSTOMIZING LOGTALK
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Please see the file "CUSTOMIZE.txt" for details on how to customize your
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Logtalk installation and working environment. |