# SWI-Prolog: A comprehensive Prolog implementation
## Forking, cloning and submitting patches
This repositories uses many [Git
causes the common issue that __fork and clone doesn't work__. Instead, _clone_ from
https://github.com/SWI-Prolog/swipl-devel.git and then associate your
clone with your _fork_ (replace `me` with your github user name).
git clone https://github.com/SWI-Prolog/swipl-devel.git
git submodule update --init
git remote add myfork firstname.lastname@example.org:me/swipl-devel.git
See [How to submit a patch](http://www.swi-prolog.org/howto/SubmitPatch.html)
See also the discussion at
[Being friendly to quick contributions](https://swi-prolog.discourse.group/t/being-friendly-to-quick-contributions/493/6)
and [Build SWI-Prolog from source](http://www.swi-prolog.org/build/)
## Web home
Please find the up-to-date information on SWI-Prolog at
Documentation is available from several locations and in several formats.
- Paper format can be ordered as [print on
demand](http://books.google.de/books?id=7AeiAwAAQBAJ&hl=en) and is
available as PDF from the [download
- Several tutorials can be accessed from the __Tutorials__ menu on
the [home page](http://www.swi-prolog.org)
- A HTML version of the documentation is in the `doc/Manual` directory
of the installation. Note that some packagers put this documentation
elsewhere or require it to be installed separately.
You can also install the website locally to use its complete functionality if you are
offline. It is available at https://github.com/SWI-Prolog/plweb.