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From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Newsgroups: comp.lang.ada
Subject: Re: Compiler business prospects
Date: Thu, 02 Feb 2012 17:39:45 +0100
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Date: 2012-02-02T17:39:45+01:00
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Erich <john@peppermind.com> writes:
>> If you are asking for non-open-source commercial software, that is
>> also a different matter.  Can you be more precise about what your
>> problem is?
>
> Sure, but I'm not sure if it's wise, because presumably this has been
> discussed already in the past. Look, I have nothing against the GPL
> and am even planning to release some smaller projects under the GPL,
> but the fact of the matter is that you *cannot* successfully sell
> shareware or run a small business under the GPL because someone will
> grab the source code and give his version away for free. That's just a
> fact.

See http://fosdem.org/2012/schedule/event/keynotes_model_success

You *can* sell GPL software and make a profit. That's just a fact.

>> Source: http://www.qtada.com/en/licensing.html
>> Providing the OP enjoy Qt (I personally don't, except for platforms where
>> it's the native toolkit).
>
> Yes, but how much is the GMPL license? I suppose the problem is that
> QtAda must be based on the commercial version of Qt, because otherwise
> you wouldn't be allowed to statically link to the Qt libraries, and of
> course I understand when people want a return for their investment.

AFAIU, Qt has been licensed under LGPL since 2009.

-- 
Ludovic Brenta.