Questions tagged [gpl]

The GNU's General Public License, a commonly-used free software license. The GPL has various versions, v1-v3, so use this tag only for questions talking about overarching issues of the licenses or shared characteristics. For example, for a question about a unique section on version 3, use the [gpl-3] tag.

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31 views

A loophole in the linking clause of the GPL?

The Google v. Oracle decision raises an interesting question. My understanding is that a proprietary application which dynamically links to a GPL-licensed library is considered a derivative work and ...
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0answers
76 views

Can someone fork my GPLv3 code, rewrite the entire thing, and change its license to MIT? [duplicate]

Their fork in question is: https://github.com/weiluntong/ProtonVPN-server-load My original upstream code is: https://github.com/twenty5151/ProtonVPN-server-load First, I am aware of the two related ...
2
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1answer
47 views

Does GPL supersede legal contract?

If there is a statement in a legally binding contract between two parties that says that one party is going to retain all source code and is not required to provide source code as part of the contract,...
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Is a principle to distinguish “mere aggregation” vs “larger work” described in GPL FAQ universal?

When talking about "mere aggregation" vs "larger work", i.e. if a work under license X should be considered a separate program or a part of the larger work, GNU GPL license and its ...
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2answers
354 views

Is GPL copyleft triggered by distribution alone?

Would distributing a commercial closed source application along with a GPLd standalone binary, which the closed source application calls trigger the requirement to license whole app under GPL? (For ...
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1answer
58 views

Is copyleft triggered for a backend service with GPLv3 dependency dynamically linked, if the backend exposes public API endpoints for mobile client?

I'm trying to figure out if GPLv3 copyleft is triggered for the following scenario: A company has a backend service written in a dynamically typed programming language. The service has a bunch of ...
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3answers
2k views

Changing my own non-software project from GPLv3 to CC BY-SA

I have a growing project which is a platform for 3D printers. The project contains printable parts and bills of materials. I defaulted to releasing it under GPLv3 without much thinking but since it's ...
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0answers
38 views

If the original author updates their program, is it now a modified work? [duplicate]

Lets say programmer Ed has made program foo and the program is licensed under the GPL license. If Ed updates his program, is that now a derivative or modified work? What if John contributes to ...
6
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1answer
646 views

Can you purchase the right to distribute GPLv3 code without disclosing source code?

WhatsApp uses the Signal protocol which is licensed under GPLv3. Am I right to assume that they should legally be required to publish their source code since they use the Signal protocol on binaries ...
4
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1answer
108 views

Require proprietary compiler / transpiler / preprocessor for GPL source code [duplicate]

Is it compatible with the GPL to construct (and distribute in binary and source form) a GPL licensed program with a "programming language" that only I have the compiler for and which I do ...
3
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0answers
42 views

Require attribution with AGPL

I've read Is ONLYOFFICE restricting our freedom with their FAQ? (AGPL v3) and What are the attribution requirements of the AGPL license? but can't come to a definitive answer - how can I require ...
2
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1answer
58 views

GPL and original author's copyright text in completely rewritten code

I'm about to release my first "big" project on Github, and although I want it to remain open-source and I have no plan of selling it, I want to try to make this licensing stuff right for my ...
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0answers
23 views

Can the license of a previously distributed binary be changed? [duplicate]

Let's say I have a programme X licensed under the GPL, to which I am the sole contributor and copyright holder. I distribute the binaries for X and provide the source code online as required by the ...
4
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1answer
787 views

If I use a mobile app that fetches data from a website under GPLv2+ is the app also under GPL?

I am currently programming a mobile app that is not under the GPL. However, the mobile app correspond with a website that is under GPL Version 2 or higher. In my case the mobiel app send request via ...
3
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1answer
106 views

Distributing GPL binary which has no source and unresponsive author

I was found in a situation where some author published a binary which was widely used. Unfortunately he never shared the source despite marking the program as GPL (version not specified). Despite ...
2
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2answers
49 views

How Viscosity VPN integrates OpenVPN with GPL2 license?

My understanding of GPL2 license make impossible that a proprietary software like "Viscosity" could possibly include a GPL2 code like OpenVPN. But going to their page, they clearly state ...
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2answers
62 views

Copyleft licenses that do not mandate free distribution?

The GPL tries to guarantee that a piece of software, and all derivative versions of that software, will allow anybody to use, study, modify, and distribute the software however they choose. I think ...
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1answer
48 views

can I get rid of the GPL-v3 LICENCE file if I use GPL-v3 licensed code but declare it in `package.json`?

I've been working with a project lately involving the usage of live2d. live2d, however, is licensed under GPLv3, so in my understanding I must include the GPLv3 licence file in my repository. However,...
2
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1answer
83 views

What to do if someone forked your project and removed its' license?

Say you created a website and it's open-source under MIT. A month later, I changed it to GPL-3.0 License. A month passed again, someone forked my project in GitHub and is making money off it via ...
12
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1answer
615 views

Proprietary Software + GPL: A case study with OctaneRender and Blender

Background: I currently stumbled across an interesting case of a combination between a proprietary software and a GPL software, which I am trying to understand: There is the GPL software Blender - a ...
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2answers
114 views

Am I violating the terms of the base licenses when I publish my project on GitHub without any license and/or links to authors of used components?

Many developers, students, etc. put their code on GitHub without any links to authors of used components and licenses. I tried find a new job and yesterday HR ask me create Rest API with django + drf ...
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0answers
28 views

Documented protocol of proprietary software + plugin of GPL software

Please assume the following: There is a GPL software (G), which provides API to write plugins to this software (GP). There is a closed-source / proprietary software (P), which has an openly ...
3
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2answers
49 views

Is it possible to use QT under LGPL for a hardware commercial product?

I am considering using QT for a commercial hardware product. The product will have a Raspberry Pi Compute Module and will run standard Raspberry Pi Linux OS. It will load our application, which will ...
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0answers
23 views

Can a GPL'ed WordPress plugin/theme incorporate an AGPL library?

If I develop a WordPress theme/plugin, and release it under a GPL license, can my plugin/theme incorporate (include) a third party library that is licensed under AGPL v.3? If so, does my plugin/theme ...
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1answer
48 views

Is the avahi-client license incompatible with its dependency on DBus?

Avahi, including the C client library, is licensed under the LGPL. On my system, (and I believe everywhere) libavahi-client.so.3 links to libdbus-1.so.3. DBus is licensed under a dual license, GPL OR ...
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1answer
1k views

If a project only includes a copy of the GPL, can it be relicensed under any version?

There's a project that only includes a copy of the GNU GPLv2 accompanying it that I wish to combine with GPL-3.0-or-later code. Assume that simply including a license file applies it globally to the ...
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1answer
110 views

Why doesn't the loading of GPLed JS in the browser count as distribution?

Let's say I have a GPL web app. Somebody forks it, adds some back end changes and hosts it. In theory, the person installing it is the user so they need the modified source code, not the people ...
4
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1answer
649 views

Dual license (GPL: my contribution, MIT: others' contribution) in an open source project?

Say I am the owner of an open source project, and I want to publish my code under the GPL license. I expect myself to be the main contributors, but I want to stay open to others' contribution. At the ...
0
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1answer
59 views

Open Source license which allows only me for commercial use [duplicate]

I'm developing an application. I want to open source my application for non-commercial use in Github(I guess GPL v3). And I want to retain the rights to redistribute the same software with some ...
26
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4answers
5k views

Can an NDA block GPL freedom number 4?

Let's say a company modifies a GPLv3 software. All it's employees can use the modified software and have access to the modified source code. The company's employees don't have the right to distribute ...
0
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2answers
40 views

Distributing software that downloads and uses GPL-licensed software

License in question is GNU GPLv3 (http://www.gnu.org/licenses/quick-guide-gplv3.html). Abstract Context: I have written a software A that downloads a docker image of software B as part of the ...
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3answers
110 views

making a GPL compiler for a non-GPL target language

I want to release as GPL a compiler which target language is opensource but not GPL. its license only says: "These files are made available to you on an as-is and restricted basis, and may only ...
2
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1answer
46 views

upload own GPLed project in a private github repository

I have a piece of code of my own that I want to use in a company that I'm working on. How can I protect it from being owned by the company? I'm not going to make it public yet, so is it a good idea to ...
0
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1answer
29 views

CC-BY-SA 3.0 and (A)GPLv3

I'd like to ask a more general question and then I'd like to ask a more detailed one based on my specific case. Suppose that I'm writing a software I'm planning to release under the terms of the ...
0
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1answer
28 views

(L)GPL software on devices provided for internal use

As far as I understand, there can be issues with (L)GPL-licensed software in code-signing contexts where modified code is not allowed to run. Now, suppose an organization (for example, a company or a ...
1
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1answer
59 views

Selling / Providing Customers a Service on an Embedded Device with an Open Source OS

I have researched this question quite a lot on stackexchange but my thoughts are inconclusive, the different licenses involved and options by the distribution vendors are giving me a headache. My ...
3
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1answer
45 views

Can original author transfer rights for GPLv3 project to other person?

Let's have one guy who have been working on game and published it as GPL open source project. After some time, community forks popped out, while original author got increasingly tired of his project ...
2
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3answers
73 views

How to properly attribute other's people work on GitHub?

I have an open source project (under GPL license) that has some parts incorporated from other projects (that use MIT and GPL), and one of the provisions of both of these licenses is The above ...
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0answers
30 views

Do significant changes to code allow a license change from 3-BSD to something else? [duplicate]

Suppose person X writes some library foolib, licensing it under the 3-BSD license. Person Y now takes the foolib sources and develops it further, making significant changes: More functionality, ...
2
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1answer
37 views

Is it possible/necessary to add Classpath Exception to LGPL?

I see people comparing the GPL with a Classpath exception to the standard LGPL. Does this mean that LGPL already has the Classpath exception or some language already similar enough to it? If not, can ...
1
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1answer
56 views

Where can I find a final, authoritative, clear list of how to handle “license snippets” for common licenses?

I am looking for an authoritative, clear and up-to-date document on what exactly a person or an institution has to do for the so-called "license snippets"/"license notice" for ...
2
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1answer
60 views

Dealing with multiple contributions in a 30+ years old software project

Context: I'm working on an old software project which dates back to 1988. I collaborate with its main author who created the program back then and originally published it under non-free license in the ...
2
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1answer
60 views

How should I deal with GPL-licensed alpine os packages when using ASP .NET Core?

I am using ASP .NET Core environment on alpine docker container (https://hub.docker.com/_/microsoft-dotnet-aspnet) and worried about license violations, as there are some GPL-licensed alpine OS ...
2
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1answer
98 views

Implications of Google v Oracle decision for GPL

What (if any) are the implications of the recent Supreme Court decision in Oracle v Google. It sets precedent that APIs are fair use. But how does this work with GPL? Specifically, imagine the ...
1
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1answer
68 views

Can I change a Mozilla Public License Version 2.0 project I forked to GPL v3?

I forked a Mozilla Public License Version 2.0 licensed app and made some changes. I want to publish the app, but I want anybody who uses my code to have to adhere to GPL v3. Since GPL v3 is more ...
1
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1answer
27 views

R package licensing when using modified functions from another GPL-3 package

I have a question regarding choosing a license for my R package. I started putting together some R functions that I wrote during my Master's thesis. One of the function I want to include is a modified ...
0
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1answer
60 views

How to license my wordpress plugin after development under GPL?

I have created a wordpress plugin but I have no knowledge of licensing. I have already read the wordpress article - "Including a Software License" under wordpress plugin handbook. Do I need ...
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1answer
109 views

Possibilities to use a GPL-v3 licensed library in a closed-source game

Licensing is absolutely not my topic and I'm currently trying to learn about it while developing my game. I'm trying to implement the espeak-ng library into my game, so I can use it to generate robot ...
6
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1answer
304 views

Is it possible to use a LGPLv3 plug-in in a GPLv2 program?

From the license point of view: Is it possible to use a plugin written under "LGPLv3+" in a program protected by "GPLv2"? The plugin is built as a ".so" library and at ...
2
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1answer
61 views

Sign and distribute unmodified GNU GPLv2, MIT and Apache2 Linux packages

Software component under a custom open-source license requires certain third-party GPLv2, Apache2, and MIT Linux packages: GPLv2 package is not part of the component but is usually used to integrate ...

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