[bug#40035] Add widelands game

[Nicolas Goaziou <mail@nicolasgoaziou.fr>]

Hello,

Alberto EFG <albertoefg@posteo.mx> writes:

> I added all the changes. The synopsis is slightly different than
> requested, because of character length.

Thanks!

> +(define-public widelands
> +  (package
> +    (name "widelands")
> +    (version "20")
> +    (source
> +     (origin
> +       (method url-fetch)
> +       (uri (string-append "https://launchpad.net/widelands/build20/build20/+download/"
> +                           name "-build" version ".tar.bz2"))

I suggest to use version everywhere in the `uri' string:

  (string-append "https://launchpad.net/widelands/build" version "/build" version "/" ...)

> +    (description
> +     "Widelands is a strategy game aiming for gameplay similar to Settlers II by
> +    BlueByte.
> +
> +    In this game, you start out on a small piece of land with nothing more than
> +    a few of useful resources.  Using those, you can build yourself an empire
> +    with many thousands of inhabitants.  On your way towards this goal, you will
> +    have to build up an economic infrastructure, explore the lands around you
> +    and face enemies who are trying to rule the world just like you do.")

The description should not be indented.

> +    (license (list
> +              license:gpl2+
> +              license:gpl3+
> +              license:expat
> +              license:zlib
> +              license:silofl1.1
> +              license:asl2.0
> +              license:cc-by-sa3.0))))

I suggest to add a comment explaining that the software, as a whole, is
gpl2+, but assets are released under various licenses.

BTW, the source ships with "minizip" and "gettext" in "src/third_party".
Could you try unbundling them and use the ones provided by Guix?

Otherwise, LGTM!

Regards,

-- 
Nicolas Goaziou