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Latest stable version: 3.27.0
Release date: June 18, 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 several 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. In general, it is recommended that you install the most recent versions of the Prolog systems.

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-3.27.0.tar.bz2
aa7211e97d1a2cf975d3b4bc52df990c34646bbc4dc478569354ad5786c01112 (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-3.27.0.pkg.zip
c022c3bd357100782f5e552c707f67265f0551b3e91b01cca1ab693f693250fc (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-3.27.0-1.noarch.rpm
3a376f3f34b3c1514ffa2dd46bb94b6db08db7f8481eea97c81578467c58e0ad (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_3.27.0-1_all.deb
191dfa83de5f1999887fd616397c5310910c84e69298d6f15f3b005c30b57e1a (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-3.27.0.exe
ed9c0fe4f5a93f12fb46d4057d5419abb5db7ccfe6f82fef747fee0d4dfd20cb (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 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-3.27.0.tgz
aa25e6608e67ceb078dcc68d2ac0767de4c68a66b4da60e1d90e80635594d861 (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-3.27.0.tgz
e829907680dfd073544e88b762e27bb9e1746bcb7a4051a69bcb941bcc3d52ac (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.