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From: Jean Louis <bugs@gnu.support>
To: Christopher Dimech <dimech@gmx.com>
Cc: help-gnu-emacs@gnu.org, moasenwood@zoho.eu
Subject: Re: Use Emacs as the IDE for Wolfram Mathematica.
Date: Mon, 24 May 2021 14:31:36 +0300	[thread overview]
Message-ID: <YKuOmB4bzQByDbxo@protected.localdomain> (raw)
In-Reply-To: <trinity-27cadaf8-e80c-4b92-83f5-7ad133dba733-1621848878481@3c-app-mailcom-bs01>

* Christopher Dimech <dimech@gmx.com> [2021-05-24 12:35]:
> > (✿╹◡╹) Maybe misconception is on my side or your side, I believe it is
> > in your side.
> 
> Read more ;)

> > gcc is free compiler, and people could make proprietary software with
> > it. But such proprietary software does not change the gcc and not
> > necessarily depend on gcc to get run, but as soon as it depend on some
> > GPL component, then it cannot be made proprietary.
> 
> The license only limits you on what you can distribute, nothing
> else.

It limits you, among other limitations, to distribute free software
program as combined with proprietary program.

It limits you, among other limitations, to make a combined program
with a free software program, unless the free software program is
licensed under the LGPL.

Otherwise you cannot make proprietary program combined with GPL-ed
program.

> > Now CLISP, Guile, and other programming languages may be GNU GPL
> > software. When you make a program to be run by Guile, CLISP, those
> > programs could be proprietary software as they do not change nor
> > modify the Guile, nor CLISP. They are just executed by free
> > software. But the overall result depends of components used in the
> > program, you cannot just include GPL components as you wish and want
> > in your proprietary program.
> > 
> > Would the Emacs Lisp program be exclusively run from command line as
> > run by Emacs as programming language then such program could be
> > licensed as proprietary software. But that also would depend if your
> > program is using the GPL components or not, which most probably would
> > use.
> > 
> > (⌐■_■) So the question is answered here:
> > https://www.gnu.org/licenses/gpl-faq.html#IfInterpreterIsGPL
> > 
> > If you just interpret the Emacs Lisp, it is fine, but question is, do
> > you bind to GPL components? Most probably you do.
> > 
> > Would you make an Emacs Lisp program that does not bind to any of the
> > GPL components then such program could be proprietary. But if you do
> > bind to any components, it cannot be proprietary.
> 
> > For example, if you do something like:
> > 
> > (require 'seq)
> 
> You can certainly do that as long as you do not distribute seq with it in
> a proprietary blob.  What you cannot do is limit what people can do with
> seq.

People can do anything, we speak what is allowed by the license, now
what one can do. The license of a GPL program does not allow making a
combined program with it and not license it under same terms.

I am asking you to make your homework first, as it is not good
spreading misleading information on the mailing list that remains in
the public forever.

Read:
https://en.wikipedia.org/wiki/GNU_Lesser_General_Public_License

Quote:

The GNU Lesser General Public License (LGPL) is a free-software
license published by the Free Software Foundation (FSF). The license
allows developers and companies to use and integrate a software
component released under the LGPL into their own (even proprietary)
software without being required by the terms of a strong copyleft
license to release the source code of their own components. However,
any developer who modifies an LGPL-covered component is required to
make their modified version available under the same LGPL license. For
proprietary software, code under the LGPL is usually used in the form
of a shared library, so that there is a clear separation between the
proprietary and LGPL components. The LGPL is primarily used for
software libraries, although it is also used by some stand-alone
applications. 

Read:
https://en.wikipedia.org/wiki/GNU_Lesser_General_Public_License#Differences_from_the_GPL

Emacs is not LGPL, and license does not allow combining code with
proprietary programs. So, no, you cannot require 'seq or any other
Emacs library in a proprietary program without violation of the GPL.

-- 
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

Sign an open letter in support of Richard M. Stallman
https://stallmansupport.org/



  reply	other threads:[~2021-05-24 11:31 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-23  5:25 Use Emacs as the IDE for Wolfram Mathematica Hongyi Zhao
2021-05-23  5:39 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-23  6:39   ` Christopher Dimech
2021-05-23  8:54     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-23 10:00       ` Christopher Dimech
2021-05-23 10:10         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-23 12:13           ` Jean Louis
2021-05-23 21:27             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-06-07 15:48           ` TRS-80
2021-05-23 12:00         ` Jean Louis
2021-05-23 12:48           ` Christopher Dimech
2021-05-23 13:09             ` Don't think Emacs package may be proprietary Jean Louis
2021-05-23 13:54               ` Christopher Dimech
2021-05-23 14:03                 ` Jean Louis
2021-05-23 14:31                   ` Christopher Dimech
2021-05-23 14:37                   ` Christopher Dimech
2021-05-23 21:26           ` Use Emacs as the IDE for Wolfram Mathematica Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-24  8:28             ` Christopher Dimech
2021-05-24  9:10               ` Jean Louis
2021-05-24  9:34                 ` Christopher Dimech
2021-05-24 11:31                   ` Jean Louis [this message]
2021-05-24 11:43                     ` Christopher Dimech
2021-05-24 11:54                       ` Jean Louis
2021-05-24 12:47                         ` Christopher Dimech
2021-05-24 14:12                           ` Jean Louis
2021-05-24 15:37                             ` Hongyi Zhao
2021-05-23 12:57       ` Christopher Dimech
2021-05-23 13:11         ` Jean Louis
2021-05-23 13:23           ` Christopher Dimech
2021-06-07 16:06             ` TRS-80
2021-06-07 22:16               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-23 13:39           ` Christopher Dimech
2021-05-23 21:28         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-23 21:42           ` Free software is liberty for future - " Jean Louis
2021-05-24  8:37           ` Christopher Dimech

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