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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What happens when a GPL licence is changed to a LGPL?

I'm using an open source library under GPL in a closed source project. If the libraries license changes from GPL to LGPL, does it mean the previous code (written when the library was GPL) should be ...
4
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1answer
158 views

Can a GPL-licensed library be used in private development builds of a proprietary application?

I'm considering using this GPL-3.0-licensed library as a development aid in a game. Development builds that include this library (and other unrelated tools) would be used by myself and any parties ...
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1k views

Is dual licensing a software that contains gpl programs possible?

I have seen that there is a question about gpl and dual licensing, but I know copyleft can behave different depending on the shape of the software. so here's my question: I have a package of lua ...
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656 views

What does the Zstandard dual license mean?

I am looking at the Zstandard library and it says that it is dual licensed, BSD and GPLv2. What does it mean? If I use libraries in a non open source program will the license be GPL or BSD? In the ...
4
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1answer
523 views

Is GPLv3-only compatible with GPLv3+?

Suppose I'm working on a GPLv3-only project, and find some code licensed as GPL3+. Can I incorporate that code freely in my software without changing my license? If a hypothetical GPL v4 is released, ...
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1answer
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Software: If I bundle built (compiled) GPL 2 licensed software with commercial software package how does it affect my software license?

If I bundle a piece of compiled software (in this case, FFMPEG) which is licensed under GPL 2, with my own commercial software (which is not licensed under any form of open source license), does it ...
4
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1answer
179 views

Do I still own code I donated to GPL project?

If I contribute code to a project that is under the GPL (or similar), can I still use my code (without any other parts that were contributed by other people) in a closed-source app? If yes, can I also ...
4
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1answer
219 views

What is GPL leakage?

I heard the term GPL leakage mentioned very recently in a presentation from a well qualified speaker from MongoDB at an event for developers & integrators in the cloud computing market. I've ...
4
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2answers
58 views

Call GPL functionality from non-GPL interpreted code

I have code written in R, an interpreted language. The R interpreter and most R libraries are under the GPL. What are the limits upon my code, if I want to distribute it while keeping it proprietary ...
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1answer
158 views

Using different licenses for different branches of the same repository

I have a Git repository with a medium-sized project on GitHub. Since there are some components depending on GPL libraries, the repository is currently also licensed under the GPL. However, the GPL-...
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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 ...
4
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1answer
367 views

Use of GPL licensed driver in commercial project

In a commercial project for our customer, I would like to install a driver on all target machines. The driver is on sourceforge (http://com0com.sourceforge.net/). The website states that: The Null-...
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1answer
192 views

What if I don't receive a copy of the GPL license?

I've downloaded the source for Linux device driver from the manufacturer's website. The source was included in a zip file, so no source control was involved. Unfortunately, the driver source was ...
4
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1answer
117 views

How could I copyleft a document that contains a substantial amount of both code and prose?

I am writing a document in LaTeX that contains large sections of Python code and output. Typically, I like to license my writing under CC BY-SA 4.0 and my code under GPLv3. I have already placed a CC ...
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1answer
120 views

Licensing under “version X or later”

Is it a GPL-only thing or can I use this formulation with any license, like "MPL 2 or later"? Does it mean that in case versions 1, 2 & 3 of license are available, "version 1 or later" effectively ...
4
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2answers
285 views

Can you use your own work in a closed source product if it's licensed under the GPL?

I'm new to licenses and don't really understand the difference between the license choices on GitHub. If you license your own work under the GNU General Public License, does this mean you wouldn't be ...
4
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1answer
467 views

Can this NVIDIA licence be used for GPL open source product?

For my GPL open source software I use LGPL-based libraries. I recently found a very useful NVIDIA SDK which I would like to use for my software. NVIDIA is using its own license, and I have difficulty ...
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2answers
86 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 ...
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2answers
144 views

Employer IP release and open source published code

Bob writes software for employer A and employer B. Bob has a general contract with employer A which states that any IP generated in the course of employment (whether during work hours or not) can be ...
4
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1answer
77 views

Closed source software with GPL dependencies

As I understand it, if I embed GPL licensed code into my application, then I would be compelled to furnish the source code (or at least make it available to them) to any customers. My question ...
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1answer
540 views

Licenses for scientific software

Edit: This question has been revised into a more specific question here that does not muddy the waters by bringing up the difficulties of supporting scientific software financially. Please see the ...
4
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1answer
250 views

Can I force to use a different name when redistributing GPL software?

Will that violate GPL? I still allow the recipient to redistribute unmodified copies and with modifications but they have to call the product with a different name when they do it. Is such restriction ...
4
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1answer
219 views

Forking a GPL 2 Project on GitHub

I recently forked a project on GitHub. After doing a significant amount of work on the fork I was wondering how to proceed with spinning it off into an independent project. The reason I ask is because ...
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2answers
308 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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3answers
90 views

How does one structure a C# OSS project to be accessible to wide ranging group of developers?

I'm looking at figuring out how to deal with C# projects in open source sanely. Visual Studio is both backwards and forwards incompatible, so everybody in the project has to use the same version, if ...
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2answers
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Can the original author see other people's modifications?

In the topic Appropriate licence for later merging back, one of the desired criteria was, I want to be capable to merge any derivatives back [...] from somebody who made modifications [...]. ...
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3answers
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Any successful “dual license” OSS project I can use as template?

I'm rewriting my entire GPLv3 project in a different language to sidestep angry contributors that don't want me to make money on their contributions. What I want for my project is: people can use ...
4
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2answers
135 views

The specifics of licensing public domain code within project under GNU GPLv3+

I'm developing a project which I'm about to release under the GNU GPL 3+ license. It does, however, contain a number of public domain subroutines. Question: How do I go about placing a GPL license ...
4
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1answer
97 views

GPL compatible alternative to LPPL?

Problem Sometimes, I write latex templates (e.g. to account for department-specific guidelines for theses etc.), and wonder how to license them. Background The IEEEtran latex class is licensed under ...
4
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1answer
36 views

Combined distribution of open source binaries when used as program in a CLI-Script

I am planning on creating a rather small repo on github but I am not sure which license should I use. The project is basically a collection of bash, batch and powershell scripts. Those scripts invoke ...
4
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2answers
106 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
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1answer
72 views

Legally, is getting a js file from a server the same as installing npm package?

I'm working on a (most possibly) proprietary front-end React app for my company. We use this npm package as a plugin for TinyMce editor. Turns out, it has GPL v3 license, which isn't allowed as per ...
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1answer
287 views

User account licenses, in an AGPL SaaS app

Can I build & release an AGPL (v3) SaaS application, but still put constraints on the usage of user accounts in that application? I like to: Provide a hosted version of the service Provide the ...
4
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1answer
2k views

Can the OpenJDK runtime be used to run third-party Java applications?

With Oracle's shuttering of their Java runtime distribution (the January release will be the last version available for commercial use without a paid license) many people are recommending the use of ...
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1answer
100 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 ...
4
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1answer
102 views

Is it ok to side-load GPL software into a closed-software?

I am developing an Electron app that I would like to distribute on the App Store. The app runs completely fine without any GPL parts or elements. The app itself has plugin support and communicates ...
4
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1answer
73 views

Including GPL plugin in repository of MIT code

I have an MIT-licensed library that supports user-provided backends. I was asked to implement a backend that would require using a GPL-licensed library. If I write such a backend, license it's files ...
4
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1answer
63 views

Can I make a GPLv3 or AGPLv3 software which serves a proprietary protocol?

I'm planning to make a GPLv3 or AGPLv3 library to allow the library user to interact with the multiplayer portion of a non-free, closed-source, proprietary game. The game's EULA explicitly allows the ...
4
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1answer
33 views

Extending a GPL website by web service plugin

Please consider this situation. A company modifies a GPLed website X and adds a feature to accept plugin. Then develops a new feature as API service Y and publishes it separately. Service Y needs to ...
4
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2answers
710 views

Can I use a GPLv3 JavaScript library on a website I'm developing for a client?

I was intending on using a GPLv3 licensed JavaScript library on a website I'm developing for a client. This library would be part of the theme. Will this necessarily make the entire them GPLv3 so my ...
4
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2answers
82 views

How does GNU GPL work in a fullstack Android project?

What is the compatibility in terms of license with an API? For example: GPL license from the client side and PHP license from the server side, is it possible? Can the Android application contain ...
4
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1answer
197 views

load in runtime an extern .qml file with GPL license

This is my question related with GPL and extern GPL scripts: I have a closed source project plus an extern .qml file, in the app root folder, that uses some GPL QT modules (for example, Virtual ...
4
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1answer
446 views

Can I deploy a docker-compose.yml that uses MySQL commercially?

As far as I know, I can sell to one of my clients a PHP web service that connects to a MySQL server that I host without making my PHP sources open source. This is because the PHP code only connects to ...
4
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1answer
156 views

Including (small portions of) code copied from the internet, in a project with GPL?

I've been starting to put my code on Github. I added the GNU Public License to most repos. Am I allowed to add spinets of code from the internet that doesn't have a license? For example if I used this ...
4
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1answer
714 views

Front-End vs Back-end vs Redistributions - Must I disclose my source?

A couple of the gems that I'm using in my rails backend are MIT licensed and I do want to go commercial with this app - that being said the MIT license requires that I include the copyright and ...
4
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1answer
95 views

Custom Linux distro Copyright and license notices

I am developing a commercial product that ships with a custom embedded Linux distro (similar to Yocto), and am in the process of collecting the copyright and license notices to comply with the GPL ...
4
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1answer
108 views

Can Apache/BSD application contain optional (commented out) hooks to link to GPL code?

I am an author of a non-GPL code that is distributed under an Apache license. There is a GPL2 library (not LGPL) that many users will commonly want to link to that provides part of our algorithm, but ...
4
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2answers
243 views

Using a GPL 3.0 parser generator for an MIT licensed program

If I used a GPL 3.0 licensed program like jacc to generate a parser generator which I incorporate into an MIT licensed program, do I have to release my program as GPL? Note that the grammar ...
4
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1answer
162 views

Can software that depends on proprietary software be free?

Suppose I write a Matlab script and place it under the GPL. The question is whether the result can be considered free software. On the one hand, the script itself is clearly free. On the other hand, ...
4
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1answer
189 views

Hosting (potentially) non-GPL plugin's

Background: In the audio processing world, most programs to compose and mix music in (collectively called DAW's from now on) are commercial and closed source. These programs can extend their ...

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