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Date: Sat, 29 Sep 2012 01:40:14 +0200
From: magnum <>
Subject: Re: unrar license is not compatible with gpl, it is not free at all

On 29 Sep, 2012, at 0:42 , Aleksey Cherepanov <> wrote:

> It seems thwt john uses *non-free* unrar code. It is a problem.
> Problematic clause:
>   2. The UnRAR sources may be used in any software to handle RAR
>      archives without limitations free of charge, but cannot be used
>      to re-create the RAR compression algorithm, which is proprietary.
>      Distribution of modified UnRAR sources in separate form or as a
>      part of other software is permitted, provided that it is clearly
>      stated in the documentation and source comments that the code may
>      not be used to develop a RAR (WinRAR) compatible archiver.
> Strictly saying unrar's license is *not* compatible with GPL. So all
> binaries with it inside *aren't* redistributable.

We are not trying to create RAR archives, at all. We are just trying to decompress. Given that, what is the problem?


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