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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Proprietary software using GPL modules

This question is bases on: Why doesn't this GPL loophole work? If a program uses a GPL derived component, does said program also have to be GPL? For example: If a game uses a music player that ...
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1answer
938 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 ...
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1answer
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Do Contributors Own Copyright After Sending Contributions?

I have a GitHub repository which its license is GPL. Although of this, in the "about" window of my program, I mentioned that I own the copyright (like this: © My name, 2017). And I added the GPL text ...
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418 views

Is it legal to use code from Microsoft Knowledge Base Article in an open source software?

In an open-source software project, GPL2 or 3, is it legal to use code snippets from Microsoft Knowledge Base articles - the ones that used to be called something like Q1234567, nowadays called just ...
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2k views

Do I have to disclose the source code of a Linux Driver I have not developed?

A 3rd-party Hardware manufacturing company is willing to sell me a Linux Driver for one of their products. The third-party company claims that the Linux Driver is derivative work of the driver they ...
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1answer
965 views

Should I attribute open-source DLLs that I ship?

I ship a GPL-licensed exe "Foo" (not mine) with my exe, and with Foo - some DLLs that it uses. These DLLs are licensed under various open-source licenses. Should I ship the copyright statements of ...
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233 views

Requiring personal info for source code

I bought a Samsung laptop recently. The model is shipped with TCL (Tiny Core Linux) with BusyBox in it. Circumstantial evidence suggests that TCL is modified to meet Samsung's requirements. I found ...
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195 views

Marketing GPL 3 software

I am planning on selling software which is licensed under GPL 3. I have gone through the terms and conditions listed in the GPL 3 license. However, I would like to know if any of the following ...
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662 views

Dynamic linking, bundling, and GPL

I have a code that is dynamically linked to a GPL library. When I distribute my code in binary form, I do not distribute it with the GPL library, and provide instruction for the user to acquire this ...
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2answers
428 views

Can I change the license of a GPL derived work to be more restrictive regarding version upgrades?

Specifically, the GPLv2. The creator of a work can allow people to upgrade to a higher GPL version: (emphasis mine) This program is free software; you can redistribute it and/or modify it under ...
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1answer
557 views

GPL Violation - What is our legal exposure to third parties (not our contributors)?

I am a contributor to a very old project presently in violation of the GPL. Our project is a plugin for a closed-source program, but the GPL does not permit this kind of linking. The project should ...
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2answers
363 views

Does sharing a file format make two programs either a combined or derived work?

This is a follow on from Does a file format constitute an API? This is an attempt to break down: Does a host application's license apply to plug-ins written for it? into the underlying questions. ...
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920 views

Can I relicense software under the modified BSD licence?

I want to modify and merge some software that is available under the two clause BSD license into a project that is available under the GNU GPL version 2. I want to distribute the result under the GNU ...
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1answer
160 views

Who is legally eligible to define a new version of the GPL?

Since GPL licenses may contain the notice that derivative software can be released either under the same or under a future GPL version, does the GPL also define who is eligible to define a new version ...
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1answer
663 views

GPL Licensed Woocommerce paid plugins

I have very basic question. I'm building website service where I want to use WooCommerce Subscription and Membership plugins. These plugins are paid on the official websites, but there is written ...
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202 views

Are dates mandatory in GPL licences?

According to Wikipedia's Copyright Formalities and Copyright notice, dating or even putting the author copyright notice in unnecessary. And then explanations such as this Stack Overflow Post make me ...
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2answers
346 views

Can I make a derived work of a GPL project and a non GPL project for personal use?

In the GNU General Public License, version 2, some limits on how you can modify the Program are listed. Point 2.b states that (emphasis mine): You must cause any work that you distribute or publish,...
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1answer
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Can a video game have a GPL licensed engine and GPL-incompatible licensed assets? What about scripts?

I've heard that it's possible to use a GPL game engine that interprets/loads/JITs a so-called Game Pack which contains all the important game files such as sprites, sounds, music, levels, missions, ...
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1answer
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AGPL v3 licensing: How does external party determine if modifications were made?

When using an AGPL v3 licensed software within a public-facing web application hosted on a private server, you are obligated (section 13) to share your code if you modify the original AGPL code. Many ...
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1answer
2k views

What copyleft license should I use for my website's HTML/CSS/JavaScript?

If I made a somewhat complicated website, and I want it (the layout/JavaScript) to be under a copyleft license (but not the text), which license should I use? I want to pull others' forks so I have ...
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2answers
342 views

Lend/Distribute IoT device containing GPL software

I have a question regarding the enforcing of the GPL license. Let us suppose I am creating an IoT device using custom software linking/modifying GPL software. We assume that the software running in ...
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2answers
570 views

Using GPL-ed library from code with more permissive license (MPL-2)

I'm writing a library and a tool on top of it, and I would like to release both under MPL-2. However, the library has an optional dependency, another library which is released under GPL (not LGPL). I ...
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1answer
1k views

Using GPL licensed library over a service for non-GPL softwares

I want to use a GPL v2 licensed library(esper) for commercially distributed non-GPL softwares but I need to make sure non-GPL software not violate GPL license. Can I use this library indirectly using ...
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1answer
59 views

Can source code that is intended to be used with something with a restrictive license, still be licensed anyway the author wants?

If you make something that is to be used by something with a restrictive license (but not actually included in your work) can your work still have any license? This question asks about restrictive ...
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1answer
199 views

What to do if I found someone broke someone elses' license

I found a nice and useful piece of software, published under the Code Project Open License which is quite permissive - similar to MIT or BSD. Unfortunately the code, as I examined it, contains files/...
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1answer
182 views

Concise GPL requirements summary list

I find the current version of the GPL to be relatively short and easy to read. However, some people seem to see a wall of text and cannot get through it. Thus we have many questions asked here that ...
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1answer
788 views

What's the typical practice for cases when OSS license violation is found and fixed?

Suppose I ship binaries of a closed source product and it just so happens that there's a piece of GPL source code inside my giant codebase that I'm unaware of. At some point I find this GPL code and ...
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1answer
289 views

GPL Application linked to a LGPL library loading proprietary-plugins

This is a bit similar to what asked in this question, unless that here the case is that the application only directly loads LGPL code, and this one then may dlopen a proprietary lib, so: GPL Program ...
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1answer
1k views

Distributing commercial Docker container image with openjdk:8-jdk

I am building a docker image with the following dockerfile and then pushing it to an AWS ECR repository: FROM openjdk:8-jdk RUN ["mkdir", "/opt/mycompany"] COPY ["myapp.war/", "/opt/mycompany/myapp....
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1answer
288 views

Using GPL resource (with separate installation) with "commercial" product

I'm building a downloadable digital web product for sale. I want to use an open-source third-party library for my product. This third-party library has two licenses available: GPL Commercial I've ...
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2answers
248 views

Offering exceptions to the GNU GPL as an employee

I find myself in the following situation; I have a software project under GPL license, which is a good fit for usage in the company I am currently employed at. Now I am happy to dual license it to ...
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1answer
116 views

Can I license Latex code under GPL but the content under CC BY-SA?

I have written a non-trivial scientific text for university. It is written in Latex and I want to make the source available under GPL (v3 if that matters) so other can learn from my Latex skills. ...
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1answer
177 views

GPL-FE (font-exception) on Apple App Store?

It seems that GPL is not compatible with the Apple App Store due to the differences regarding Apple's ability to impose further restrictions. Does this also affect fonts bundled with the app? In ...
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5answers
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Is it permitted to prohibit a certain individual from using software that's under the AGPL license?

I recently found an open-source class library that declares that it "has the permission to prohibit a certain individual from using it" and I can't stop wondering if I published an open-...
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3answers
744 views

Usage of GPL program as optional external tool

My software is designed to use third-party external tools if the user wishes to do so. Some users would like to use GPL-covered binaries as external tools (i.e. they tell my software "use this dll to ...
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3answers
636 views

What does 'terms that are compatible with the GPL' mean?

From Octave's FAQ, Code written using Octave's native plug-in interface (also known as a .oct file) necessarily links with Octave internals and is considered a derivative work of Octave and ...
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2answers
4k views

What legal meaning do GPL symbols hold in the linux kernel?

In the linux kernel, several symbols are exported with EXPORT_GPL_ONLY, and as a result are only available if your kernel module contains MODULE_LICENSE("GPL"). Do either of those have any legal ...
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2answers
526 views

How much access to the "original" code of a GPL-sourced project do I need to provide, personally?

There's a well-known GPL3 game on Google Play called Pixel Dungeon by watabou (which includes a game engine by watabou called "noosa" which is also GPL3), and it accepts donations in the app. The game ...
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1answer
665 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 ...
6
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1answer
307 views

Opensource license ownership and collaboration

If a person releases their source under some Open source license. And later if another person contributes to the project through a pull request (in Github). Then, does the contributor gets a say if ...
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2answers
3k views

Using a GPL header in a closed source program?

I've recently noticed that some of the userapi linux kernel headers are declared under the GPL. However, I'm pretty sure that you can include linux uapi headers in your code without your project ...
6
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2answers
826 views

If MIT licensed code links to GPL licensed code what should be the license of the resulting binary program?

Scenario: I have written a program that uses a GPLv2 library. The source code to my program is publicly available under an MIT license. For the sake of this example let's say my program links to the ...
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1answer
872 views

NDA with GPL software: can the author decide how/when to disclose?

The GPL FAQ states that is not permitted to sign NDAs when distributing software, as it would be a violation of the redistribution freedom. Let A be an entity that develops a feature on top of an ...
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1answer
2k views

Can I put ads on a GPLv3 project and upload it to Google Play?

I forked a messaging app on github and added my modification on top of it and it started to build an audience in my country because of the unique ad-on feature I have added. The app acts as an SMS ...
6
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1answer
393 views

Is AGPL Compatible with GPL for the purposes of BSL License Change

I would like to license two products, one with AGPL, one with GPL. The requirement we have is that we want to keep the initial release until BSL, but thereafter OSS is fine. I believe the most ...
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2answers
106 views

AGPL-3.0 Software on a vending machine

Is it legal when i download a software under AGPL-3, modify it, put it on a vending machine and place the vending machine in a public place, where everybody can use it, without publishing the ...
6
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1answer
235 views

What part of Android will now have to be under the GPL?

Google said that “As an open-source platform, Android is built upon the collaboration of the open-source community,” a Google spokesperson told VentureBeat. “In our upcoming release of Android, we ...
6
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1answer
209 views

Which license should I use when my project uses plugins under various licenses?

I am confused about choosing a license for my project. I have read some resources like Open Source Initiative and Choosealicense.com, though. My project is a mobile application for Android. Now, it's ...
6
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1answer
109 views

Take a piece of GPL'ed code and put it in code under other license?

What happens if I take a small piece of code (~400 lines) that is licensed under GPLv2, and modify and use it in my own project? Am I now obliged to license my program under GPL, or can I use a more ...
6
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1answer
335 views

Can I GPL licence a plugin for a non-free program

I am working on a plugin (in lua) for a proprietary program, but would like to make my plugin open source, and require that anyone making derivative works/plugins also do so. This seems like a good ...

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