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Latest stable version: 3.23.0
Release date: January 30, 2019

Requirements

Logtalk runs on any operating-system with a standards compliant modern Prolog compiler. The interface between Logtalk and a specific backend Prolog compiler is accomplished using a small adapter file. The Logtalk distribution includes adapter files for all supported Prolog compilers:

Legacy Logtalk versions (2.x) provide support for some other Prolog compilers, which are no longer supported due to lack of compliance with official and de facto standards.

Be sure to install the Prolog systems that you want to use as backend compilers before installing Logtalk.

License

Logtalk is an open source programming language, distributed under the Apache License 2.0. The copyright notice and license applies to all files in this release (including sources, documentation, and examples) unless otherwise explicitly stated.

Git repo

The Logtalk git repo is currently hosted at GitHub. Follow these steps for running Logtalk development versions. See the release notes for the latest changes.

You may keep up to date on development changes by subscribing to the Logtalk commits RSS feed.

Sources

logtalk-3.23.0.tar.bz2
10c127c676e7b88142ddf29543daf7075572203bd2010e48f6ea913fe018ead5 (SHA-256)

Includes the HTML versions of the Handbook and the APIs documentation.

Installers

Be sure to read the README.md, CUSTOMIZE.md, and QUICK_START.md files on the Logtalk user directory for important information, including instructions on how to customize and run Logtalk. For Windows users, this information is also available from the Logtalk program group in the Start Menu.

The following installers are available for the latest version:

macOS

Based on the MacPorts portfile. Installs Logtalk on /opt/local/share/ with integration scripts for supported Prolog compilers on /opt/local/bin. Creates an /Applications/Logtalk folder with links to the installed files.

logtalk-3.23.0.pkg.zip
64c137ce3f1ce2d29adaf3e77c3f1a14ecf35d0939fe355f3ec9ef4629ce8c57 (SHA-256)

A MacPorts portfile is also available. Users may simply type the command sudo port install logtalk (or sudo port upgrade logtalk) in order to install (or upgrade) Logtalk. Homebrew users may simply type the command brew install logtalk (or brew upgrade logtalk) in order to install (or upgrade) Logtalk. But do check first that the MacPorts portfile and the Homebrew formula are up-to-date.

Linux

Installs Logtalk on /usr/local/share with integration scripts for supported Prolog compilers on /usr/local/bin. Package installation from the command-line is recommended.

logtalk-3.23.0-1.noarch.rpm
978a125bf66cb7c8c5af16de7a2577d21fc4169958ef46c446df34bfbe4a5b79 (SHA-256)

Debian (e.g. Ubuntu)

Requires dpkg 1.15.0 or a later version. Installs Logtalk on /usr/share with integration scripts for supported Prolog compilers on /usr/bin. Package installation from the command-line is recommended.

logtalk_3.23.0-1_all.deb
0c80e85b90c7a366c785e392b4fe2a1dc8ce67b5cc1940e5f9a9d1878c1cbae9 (SHA-256)

Windows

Be sure to install a compatible Prolog compiler before running the Logtalk installer. Creates a Logtalk program group in the Start Menu with integration shortcuts for supported Prolog compilers and shortcuts for the accessing the Logtalk documentation. Can be used by both admin and non-admin users.

logtalk-3.23.0.exe
a15c9ac35391a3b16578f95317589532c4bd45304fcb2589fb74279e86265d6b (SHA-256)

SWI-Prolog pack

Logtalk is also available as a SWI-Prolog pack. The pack is handy for deployment but not ideal for development, however, as the all the files in the distribution are buried in a relatively deep sub-directory. The pack can be easily installed typing the query pack_install(logtalk) at the top-level. Also available as a manual download.

logtalk-3.23.0.tgz
05438fe64ebb535fd7ee100cc23d4310bd60b5ee9df4c156a48fc86d068ef4b3 (SHA-256)

Arch Linux package

Logtalk is also available as an Arch Linux package contributed by Ebrahim Azarisooreh.

Documentation

HTML, ePub, and PDF versions of the Handbook (includes a tutorial, the User Manual, the Reference Manual, and the FAQ). Note that the HTML version is included in the source and binary packages.

logtalk-manuals-3.23.0.tgz
3ba56dd6b6f98dc3f20b9b525af3cdb2b35e0d6af5628e16cdd60465bd952419 (SHA-256)

Docker images

Nightly and stable Docker images are available using selected backend Prolog compilers.

Older versions

Older releases are available here (but note that time stamps do not match the release dates due to all the moving of these files between servers along the years).

Registration

Consider registering if you become a Logtalk user.