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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2
votes
1answer
140 views

Release an application that uses Flutter under the GPL?

I want to write an Android application that uses Flutter. Flutter has the "BSD 3-Clause "New" or "Revised" License". But I want to release my application as an application under the GPL. Would it be ...
9
votes
3answers
700 views

How is the Expat (MIT) license compatible with the GPL?

Suppose I come across Project G, an open-source project licensed under the GNU GPL, and Project M, an open-source project licensed under the Expat license (also called the MIT license). I want to ...
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0answers
42 views

Can I use a GPL v2 software in commercial software? [duplicate]

I've already gone through the following links and many more: Using a tool under GPL v2 in a commercial application Can I use GPL libraries in a closed source project if only the output is ...
4
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1answer
97 views

Etiquette for incorporating someone else's MIT code in my GPL project?

I'm relatively new to open source, esp. in terms of collaboration, etiquette, etc. I am working on an open source library in the scientific/numerical programming domain, licensed under GPL. There are ...
3
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1answer
298 views

GPL-3.0 library in MIT project

I'm working on a project comprised of a small HTML page and a JavaScript script. From the HTML page I include a library which is licensed under the GNU General Public License v3.0, and from my script ...
17
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1answer
2k views

What is the difference between GPL + Classpath exception vs LGPL

Java and a few java libraries provide a "classpath" exception. To me, this seems similar to the LGPL's linking exceptions. What is the difference between the GPL with a classpath exception and the ...
3
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2answers
661 views

3-Clause BSD vs AGPL for a startup FOSS product

It appears that many startups are using both licenses to create commercial FOSS products (note I am here more interested in complete products not libraries). Is the 3-clause BSD more protective for ...
2
votes
1answer
127 views

NDA over code that includes GPLv3 headers

Suppose there is a piece of software that uses GPLv3 headers, but the code that includes said headers is not under the GPLv3 itself, but rather a GPL-compatible license, say MIT Expat. Thus the binary ...
12
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2answers
2k views

Asking for a more permissive license

I'd like to use and improve an old library for a new project. It is a specialized library and it has not been updated for 5 years. My project is licensed with a permissive license, while the library ...
3
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0answers
125 views

To what extent does the GCC Runtime Library Exception cover macros, typedefs and functions?

Recently, I've had some trouble trying to get std::thread working with MinGW g++. Considering that I don't want a dependency on gthread, I was wondering if I could use thread.cc (and cxxabi_forced.h) ...
3
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1answer
54 views

Some questions about LGPL v.3 (support, warranty…)

I participate in the development of a soft that will be distributed on a commercial basis. Question: 1. If I take the open-source Library (under LGPL v.3), will there be any obligations to support ...
2
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1answer
156 views

Who is owner of code under GPL3?

In the header of GPLv3 wrote Copyright ... Free Software Foundation GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software ...
3
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1answer
83 views

GPL/BSD-like Dual license add special clauses to the GPL

Quick question: I would like to publish a software under a self-written BSD-like license, and under the GPLv3. So far so good. If somebody would fork said project according to the GPL, I would, in my ...
5
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1answer
81 views

Does GPL apply to loaned or rented hardware?

I know that if I buy a device it counts as distributing the software that comes with it, therefore entitling me to ask for sources of the GPL code within. But what if the hardware is technically ...
8
votes
1answer
2k views

Can someone fork my GPL licensed project and re-license it under MIT or BSD?

I want all the people who link to my software should also release their code under GPL. But what if someone forked it and attempted to relicense it under the MIT, BSD, Apache, or LGPL licenses? Can I ...
33
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7answers
13k views

Can I take BSD licensed code and distribute it under GPL?

Or in more general terms: Can I take code which is licensed under a permissive open source license (like the BSD license) and distribute it under a copyleft free software license (like the GPL)? ...
8
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2answers
2k views

Are pictures of GPL software GPL?

GPL must be applied on screenshots of GPL software or not. Can a screen recording of GPL software, such as Linux, be published?
4
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2answers
136 views

Should the License be the initial commit in a repo?

I plan to opensource a personal project on github. As a part of this - I plan to add necessary License file(s) in the latest commit prior to making the repository public. My questions are: Does the ...
1
vote
1answer
115 views

GPL on cmake scripts

As far as I understand GPL, it uses the author's copyright to restrict usages of their code: Whenever someone wants to use this piece of code, he also has to publish his modifications if he ...
14
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2answers
2k views

Can I demand the source of a closed source application if I discover it links with a GPL library?

Let's say I see a popular closed source application (distributed for free in binary form) links dynamically with a library that has a GPL license (according to the library's website). Can I write to ...
2
votes
1answer
95 views

Does GPL require me to publish the source code INCLUDING configuration files needed to run?

For simplicity lets say i created a Server-Client programm which uses libraries under the GNU license. My understanding is that i now have to give everyone who asks my full client source-code and ...
0
votes
1answer
77 views

Can I use a General Public License code from a github repositiry?

I'm working on PDF password cracking tool which borrows a file from John_the_ripper_bleeding_jumbo. I want only one single file, pdftojohn.pl. How can I use that file? The licensing information ...
20
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2answers
3k views

If an employee modifies a copy of a GPLv3-licensed open source library, is the modified copy intellectual property of the company?

There is a GPLv3-licensed open source library on GitHub which is used by the company I work for in a central component of the business. The business does not sell software, but only a manipulation of ...
-2
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1answer
43 views

closed source binary in Linux image

I've got question about following situation: if i have closed source binary and device with Linux, i want to sell this device with Linux and closed binary in its filesystem. Is it legal to keep source ...
2
votes
1answer
83 views

Is there a specific header used to indicate that a file is exempt from the licensing of the rest of the project?

I am using the GPLv3 license for a tool that embeds files into source code. However as part of it's operation it copies a portion of it's own source into projects that use it (as a library to allow ...
1
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0answers
26 views

.RDS files and GPL license in R

We are building an application that uses machine learning to predict certain parameters and use them in an optimization algorithm afterwards. We are not building the front-end in R neither the back-...
4
votes
1answer
115 views

Sell content separately for app licensed under GNU v3?

If you're using a library that is licensed under GNU GPL v3 to help develop your application, then from what I understand, you must release your application for free and it's source code. Is it then ...
3
votes
0answers
125 views

Does the GPLv3 give recipients the legal right to circumvent technological measures imposed on them by third-party redistributors?

To my understanding, a distributor of GPLv3 software who does not have any right to redistribute software except by becoming a GPLv3 licensee, and knowingly distributes GPLv3 software agrees to ...
3
votes
1answer
93 views

Distribute binaries of GNU GPL licensed project without source as copyright holder

I don't quite understand what I, the copyright holder of a project, am permitted to do according to the license I have given my project. I want the source code for most versions of the project to be ...
0
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0answers
41 views

What are my obligations if I convey software that calls GPL code (specifically via python import), but I do NOT convey the GPL software itself?

Party A writes some software; perhaps intending to distribute it under the MIT or some other permissive license. THe software uses some GPL'd software. Party A conveys the software to party B, without ...
1
vote
1answer
52 views

Use of GPL software with proprietary network program

I am working on a distributed computing project. The client for this project uses Twisted (MIT licensed) to communicate with the server. The client will locally invoke a PARI/GP (GPL licensed) script ...
1
vote
1answer
70 views

Does GPLv2 allow for prohibiting misrepresentation of the origin

I am a maintainer of dosbox-staging project, which is licensed using GPLv2+. I am considering bundling DOS/32A with my project (as it greatly helps with the emulation of old DOS software). DOS32/A is ...
3
votes
1answer
150 views

Can I distribute non-GPL code that uses GPL code as long as I don't distribute myself that GPL code

I have some doubts about source code re-distribution and GPL I wrote DummyLib, a library that includes AmazingLib (third-party lib, released under GPL) and links against ProprietarySDK (no source, ...
5
votes
1answer
264 views

Could the anti-tivoization provisions of the GPLv3 be circumvented by providing software separately?

In the FAQ section of the GPLv3, the Free Software Foundation presents the following entry: Question: Suppose that two companies try to circumvent the requirement to provide Installation Information ...
7
votes
1answer
926 views

Is it possible to migrate old GPL2 project to GPL3?

So I found an old project that is GPL2, not hosted on Github. I fixed bugs in it, and want to post on Github. Can I distribute it under GPL3? In other words, is GPL3 a GPL2 with additional ...
3
votes
2answers
1k views

Does program that uses EBPF module needs to be distributed under GPL

I have a question about eBPF and linux kernel licensing. Basically, an eBPF module is a small piece of code that is run inside Linux kernel, and can use kernel methods that are marked as GPL-only (eg. ...
2
votes
3answers
463 views

Pacifist copyleft-like partially-open-source license [closed]

I'd like a license restricting use to non-military projects, but otherwise just like the GNU GPL. (There is obviously no point in making a permissive license like that, because editing a comment is ...
4
votes
2answers
99 views

Can I have the source code of my Python/C++ project under MIT/BSD/Apache2.0 and its PyPI binary wheel under GPLv2?

I am trying to find how to license my open source project, but after having spent a few hours Googling around, my head started to hurt! Instead of asking a million of questions about different ...
4
votes
2answers
84 views

Is Flameshot mislabeled on the Ubuntu Software Center?

Recently, I have seen Flameshot labeled as proprietary on the Ubuntu Software Center: (german text, "Proprietär" means "proprietary") Is Flameshot mislabeled on the Software Center, as it's official ...
5
votes
1answer
177 views

Distributing GPL OS with proprietary software

We are looking to distribute an embedded software product using an open-source, GPL3.0 licensed operating system with our non-GPL proprietary software running on it. With normal works, if our code is ...
24
votes
6answers
4k views

How can GPL terms apply to distribution of a proprietary plugin?

Let's say I develop a plugin for third-party application X. My plugin has a non-free license, and is commercially distributed. I don't distribute application X. Application X is licensed under GPL, ...
3
votes
1answer
77 views

Can I dual license my code after accepting downstream contributions into my code base?

As the original author (and copyright holder of source code) of code which I have chosen to release as GPL. I think I am correct in saying I can dual license my code and thus choose to enforce one lic ...
1
vote
1answer
32 views

Is it possible to have a proprietary commercial plug-in in a GPL licensed app?

We are developing an automatic machine learning software for researchers under a GPL license. This will allow them to use different ML algorithms on their data. Is it possible to offer an additional ...
4
votes
3answers
1k views

Can GPLv2 licensed software be re-published under LGPLv2.1?

I have read Can LGPL 2.1 licenses software be re-published under GPL 3.0? and followed link to GPL license compatibility matrix in the GPL FAQ, which is confusing me a bit: If I understand the table ...
2
votes
1answer
106 views

Changing the open source license of a forked project (EUPL to GPL)

I believe context is important, so here is a little story. Let's imagine (all characters and events in this story - even those based on real people - are entirely fictional) that Alice has developed ...
4
votes
2answers
2k views

GPL for Embedded

I'm working in a company that develops and sells embedded systems. We are using Linux and some GPL software, alongside proprietary software. Some of the GPL softwares are modified to fit our needs. ...
3
votes
1answer
36 views

How do I use GNU licensed code copyrighted by the original author?

I am writing open-source code based on another author's open-source code. The original author licensed the code under the GNU Public License and copyrighted it under his name. I am, of course, ...
42
votes
3answers
5k views

What can/should I do when I see a violation to GPL restrictions?

Some years ago, I was working on a software company that used some copyrighted JAR dependencies that they had bought from a medium-size obscure private company for a very expensive price. After some ...
4
votes
2answers
524 views

Including resources with ambiguous license for GPL application

I'm creating a GPL v3 application. I've found some graphics on www.flaticon.com that I would like to use in the application. The application will be distributed as binary, but with the resources as-is ...
4
votes
2answers
301 views

Can a Proprietary Application Exchange Data with a GPL'd Program?

I am considering extending a proprietary application so it communicates with an open source program. This open source program is very similar to Matlab. The user can input commands to execute ...

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