c1a999bfb1
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1989 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
153 lines
6.7 KiB
Plaintext
153 lines
6.7 KiB
Plaintext
================================================================
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Logtalk - Open source object-oriented logic programming language
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Release 2.30.8
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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" and "integration/NOTES.txt" files for a description
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of a set of shell scripts that might be used for Logtalk installation on
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some operating-systems and for easy Logtalk integration with popular Prolog
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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 POSIX operating systems (see the "scripts/NOTES.txt" file for
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details). Starting from the Logtalk directory, type:
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% cd scripts
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% sudo ./install.sh
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This installation script makes all files read-only for non-admin users 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 be set 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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(by default, ~/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 Windows
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GUI installer sets the LOGTALKHOME environment variable for all users and
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also sets the LOGTALKUSER environment variable for the administrator user
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running the installer.
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3. END-USER SETUP (COPYING LOGTALK USER-MODIFIABLE FILES TO USERS HOME DIRS)
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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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back-end Prolog compilers for which an integration script is provided on
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the "integration" directory, this setup as the advantage of allowing each
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end-user to independently customize default compilation options and library
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paths.
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Windows (non-admin) users may also use the Logtalk GUI installer to setup
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their Logtalk user folder and the LOGTALKUSER environment variable.
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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
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that is automatically consulted at startup. These initialization files
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may contain directives for loading other files, such as the Logtalk
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configuration file and the Logtalk compiler. The "$LOGTALKHOME/integration"
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sub-directory contains several pre-made scripts (named "*lgt.*") for running
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Logtalk with selected back-end Prolog compilers. You can use these scripts
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as examples when creating initialization files for other Prolog compilers.
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Be sure to read the "configs/NOTES.txt" file notes on the Prolog compilers
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that you intend to use. You may also simply follow the steps described in
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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. |