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Questions about the GNU General Public License. If you intend to ask something about this license, CONSIDER NOT TO ASK HERE. Instead check if **Opensource.SE** (https://opensource.stackexchange.com) would not be more appropriate for your question than this site.

18 votes

Am I covered with GPL If I want to share open source code of project developed in my company?

The GPL does not change that. … The only thing that seems to change once any distribution has occurred is detailed in this GPL FAQ entry: If someone steals a CD containing a version of a GPL-covered program, does the GPL give him the …
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4 votes
Accepted

Should I rewrite the git history of a non-GPL project to remove GPL code that was later remo...

There is no reason why your old revision could not be licensed under the GPL, but if you do not announce that it is licensed under the GPL, then it's functionally not, and those revisions are in violation … of the GPL. …
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11 votes
Accepted

Can I use GPL code as textual data in my app?

From the Free Software Foundation's GPL FAQ: If a programming language interpreter has a license that is incompatible with the GPL, can I run GPL-covered programs on it? … Of course, any GPL work you distribute must stay under the GPL, but the GPL provisions will not apply to your project as a whole, because it doesn't combine with your existing work into a new derived work …
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20 votes
Accepted

Can I commerically use GPL licensed software on my server if I am only distributing the clie...

You put all the GPL-licensed components in the first program and license under the GPL, and you license the other program under a GPL-incompatible license. The first case is clearly okay. … So the GPL has to cover the whole thing. …
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3 votes

GPL Copyright notice in fork of dual licenced software when copyright of original has been s...

It has never been a requirement of the GPL to research, affirm or update the copyright headers for modifications to a work for which you are not the copyright holder. …
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5 votes
Accepted

Who is the copyright owner of a contribution (commit) to a GPL-licensed project?

If Alice decides to sell the work under the terms of the GPL, it's no different from a third party attempting to sell a GPL-covered work -- it's completely allowed. … Both authors offered the code under the GPL, so anyone can use it and redistribute it (for free or at cost) under the terms of the GPL. …
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2 votes
Accepted

License question regarding open-source project which may eventually contain a commercial com...

BSD-licensed code can always be included in a GPL-licensed project, because the BSD license is GPL compatible (which means that the requirements of the BSD license are a subset of the GPL's requirements … The work as a whole will still be GPL-licensed, and the specific component will still be BSD-licensed. …
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15 votes
Accepted

Do I have to make source code open, if I use GPLv2 licensed software to derive data

The FAQ explains that output data produced by a GPL-licensed work is not covered by the GPL, unless the output actually contains GPL-licensed material (e.g., if part of the GPL-licensed program itself … You'd need to obey GPL restrictions on the output, but sharing GPL-licensed output does not mean you must share changes on the GPL-licnesed program that created that output. …
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10 votes

Including GPLv2 code in GPLv3 code

We can consult the inter-GPL-compatibility table from the FSF's GPL FAQ to see the two cases: The top marked space disallows a GPLv3 project from including GPLv2-only code. …
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