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 [tag:gpl-3] tag.

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Distribution of code of a system that uses open source tool with GPL license

I'm sorry if my question is repeated, but I have searched and read allot about this topic and kind of confused and want to make sure at this point. I'm planning to use an open source tool that will be ...
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2answers
90 views

Can I use GPL libraries in plugins without infecting a host commercial application?

I'm quite confused about what are the obligations of GPL libraries in the context of plugin based software. Let's say I want to distribute & sell a plugin based app as closed source providing to ...
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0answers
19 views

Do the Huawei App Gallery terms allow for GPL software?

I've asked a similar question about the Amazon AppStore, and now I'm curious about the Huawei App Gallery. Is it possible to submit an app licensed under the GPL v3 or later to that store without ...
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4answers
3k views

Is keeping the forking link on a true fork necessary (Github/GPL)?

This question is about a true fork (with new name, different features, different objectives and not targeting a pull request). When I am developing a new application based on an other project I ...
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0answers
50 views

Linking to libtorch/CUDA from a GPL program

I have modified a GPLv3 program to link to libtorch (part of PyTorch). PyTorch is licensed under the BSD-3 clause license. I would like to convey my changes to the original GPLv3 program and the ...
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2answers
128 views

If APIs aren't (shouldn't be) copyrightable, how can ZFS-on-Linux infringe the GPL?

Note: This is a question about a specific individual's viewpoints and beliefs. Good answers will cite that individual, or other people with similar beliefs. Bradley Kuhn of the Software Freedom ...
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1answer
102 views

License for open-sourcing a website theme while disallowing direct reuse

I'm working on a theme for the static website generator Hugo to use for my personal portfolio website. Since I prefer open-source code and would like to keep all my own projects in the same vein, I ...
2
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1answer
76 views

Can I license code that links to GPL code under a more permissive license?

I'm working on a project that I want to release under the MIT license. However, it includes a GPL'ed library. I understand this means I must release my work under GPL. Am I able to release the whole ...
2
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1answer
187 views

Implications of using Linux's Kbuild infrastructure in proprietary software

We have our own proprietary software that we are developing for commercial business. We want to sell the software and we do not have any problem in distributing the source code to our customers. Due ...
3
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1answer
63 views

Do Amazon AppStore terms allow for GPL software?

The terms for the Apple AppStore have been shown to conflict with the GNU GPL in such a way as to prevent GPL apps from being in the store — see this question. Are the Amazon AppStore (the standard ...
2
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1answer
48 views

Is it a GPL license violation to bundle a GPL'd Python script with a closed-source application?

I have a closed-source C++ application that includes an embedded CPython interpreter. It ships with a directory full of example Python scripts that I wrote, which perform useful actions within the ...
3
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2answers
119 views

Proper use of Wikipedia code sample in open source projects

Many Wikipedia articles contain code or pseudocode samples. I implemented a pseudocode snippet in a concrete language and am planning to use it in one of my projects. There's another question on here ...
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0answers
40 views

How to use the GNU GPL licensed GCC Complier [duplicate]

I have been trying to figure out the GPL and other free software license. I am planning to use the GCC compilers which are licensed under the GPL category. If I use the GCC compiler to compile my C++...
3
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1answer
44 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 ...
9
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1answer
985 views

What are the details of this accusation regarding the “web app loophole”?

I was recently reading an article, and I came across the following text (emphasis mine): Even that most notorious of “Communist” licenses often cited by paranoid executives as examples of anti-...
4
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1answer
583 views

Are there any AGPL-style licences that require source code modifications to be public?

So my understanding of the AGPL, is that it requires modifications to be distributed to the users of the network service, but I'm looking for a licence that would require any modifications (non-...
3
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2answers
99 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 ...
3
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2answers
120 views

How to deal with situation where your competitors have access to your source code because you developed it with GPL?

I make an industrial machine control product with LCD touch screen UGI. I use embedded Linux, I use GPL license tools. I am using industrial single board computer which is a bought out product. I am ...
3
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1answer
99 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 ...
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2answers
597 views

How to accept contributions for AGPL / proprietary dual-licensed projects?

Supposed I have written a software that I offer using a dual-license model, using AGPLv3 as OSS license, and a proprietary one as commercial (closed) license. Now, let's assume somebody wants to ...
10
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2answers
527 views

Can I post code examples with GPL software on Stack Overflow?

Suppose there is a Python library called g which is licensed under GPL v2.0 (or v3.0). Suppose further that the library is sufficiently complex that it contains some C/C++ component(s) that are ...
3
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1answer
27 views

Licence for usage of GPL, apache licence

Never though of that before, until read Linus note in Linux kernel: "GPL below is copyrighted by the Free Software Foundation" So, what right do we have to use so called free software licences? ...
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1answer
79 views

Can i use Qt Virtual Keyboard?

Is this design correct? System Qt 5 has qtvirtualkeyboard thich is GPL. Can I link my proprietary app with system Qt? Can I create open source app which run Qt Virtual Keyboard then load my app as ...
7
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1answer
116 views

Does “the GPL doesn't cover the ouput of a program” also apply if the output is source code?

As it is well known (see for example this question or this one), the GPL licenses do not cover the output of a GPL-licensed program. So, I could for example generate some pictures with a GPL-licensed ...
4
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2answers
99 views

Why does the clause 3 of 4-clause BSD makes it incompatible with GPL?

As explained on the GNU GPL site, the 4-clause BSD is incompatible with GPL because of the clause 3 which states: All advertising materials mentioning features or use of this software must ...
4
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2answers
91 views

Release GPL/Open version of project, still sell proprietary license?

Having witnessed projects such as LUFA, which are open source with the MIT license but still have a purchase button for a proprietary license of the toolbox (revoking the MIT License and offering ...
2
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1answer
42 views

Debian packaging … is licensed under the GPL version 3 in copyrights file

On Ubuntu I see for many packages copyright file under /usr/share/doc/%PKG_NAME%/. In the file of some of those packages, I see the following at the end of the file (protobuf, which looks like BSD (...
14
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2answers
3k views

GPL code private and stolen

I have a question regarding code which was originally under GPL. The code was used and was built upon and used as a service. The code was kept private, which seems okay under GPL. However, if one of ...
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0answers
29 views

Does rewriting a library in another language allow escaping GPL? [duplicate]

Given a library A, which is written in C and licensed under GPLv2, and lib B, which is written in Rust and compatible with the API/specs of lib A but the devs have read through the code of lib A, can ...
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1answer
59 views

When must a project that uses GPL licensed projects use a GPL license?

i have a project that needs to use tools licensed under the GNU/GPL license. my question is: must a project that a uses GPL licensed tool like netdiscover be licensed as a GPL project? if my ...
5
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1answer
59 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 ...
-1
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1answer
77 views

Can I create a GPL wrapper that runs my closed source application combined with a GPL part

I have this situation: I have my application implemented as propriety library. (Like a GUI component that could be embedded in something else) I have a virtual keyboard library that is GPL. I would ...
0
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1answer
45 views

What is really accepted as an open source project for GPLv3?

Let's say I want to use a Javascript component that is under the GPLv3 license. That forces me to license my product under an open source license compatible with GPLv3. So, let's say I have an ...
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2answers
115 views

Is it legal to fork “gpl 2 or later” software and make “gpl 2 only” changes

I've found interesting open source project (mostly dead now) and I would like to fork it, fix some bugs and use it. The project is licensed under "gpl 2 or later", however I'm not big fan of "gpl 3", ...
14
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4answers
2k views

When distributing a Linux kernel driver as source code, what's the difference between Proprietary and GPL license?

The company I work for is selling PCIe cards. I'm writing the Linux driver for it as a Linux kernel module. When selling these PCIe cards, we give along the Linux kernel driver as source code. ...
1
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1answer
215 views

Java OpenJDK 11 and Spring licenses

I'm developing a web application with Spring (and Spring Boot) and Open JDK 11 and I'm very confused about their licenses and how I can combine them. Open JDK 11 is released under GPL GNU 2 (with ...
1
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1answer
74 views

Is LGPL compatible with GPLv3?

If I have a project using LGPL (GNU Lesser General Public License), would I be able to use within it another component which is under GPLv3? Is there any site where I can see all the compatible ...
3
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1answer
43 views

GNU General Public License version 2 on a game image resource

I am creating a commercial game, with most resources using CC-BY-xx licences for graphics, sound etc. I have found some graphics that i want to add to my game. However, these graphics are licensed as "...
7
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2answers
165 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 ...
5
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1answer
1k views

GPL - Is it required to post source code to the Public - when is a software released?

The GPL FAQ "Does the GPL require that source code of modified versions be posted to the public?" contains this statement (emphasis by me) The GPL does not require you to release your modified ...
3
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1answer
37 views

Embedding code using API of GPL library in tutorial website

I want to make a commercial tutorial website that will teach people to use GPL-licensed R packages in a series of articles. The website will not execute the code, but will show people the output of ...
3
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1answer
217 views

Can I use proprietary library in a GPL-Compatible library loaded on a gpl Program?

I am asking mainly to be sure. To describe it better, I want to use some external functionality that is available through a proprietary library. Since the library IS NOT compatible with GPL Programs, ...
3
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1answer
85 views

Someone is offering money to use my software without a license. Is it a scam?

I am the creator of an open source project licensed under MIT and GPL. Recently, someone has reached out saying that these licenses do not fit their needs, and that they would like to pay me to be ...
3
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1answer
65 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 ...
0
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1answer
47 views

GPL. Can source code be modified for security?

I'm currently working on a project that will be given for free under GPL license, for which I have no problem giving the source code. The problem lies in the algorithm used to obtain the private key (...
3
votes
2answers
86 views

Can I publish only select code under GPLv3 from a private project?

So my team is planning to go open source with a project that has been in development together with an industry partner for some time now. We're not sure about the licensing yet, but GPLv3 looks ...
2
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1answer
33 views

Extending GPL project with Paid license features

I found some GPL v3 licensed open source projects that also have paid enterprise license versions with more useful features. I only need 10% of the features available in the (expensive) enterprise ...
1
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1answer
35 views

Can we use the weight of the neural net learned with the MIT-BIH dataset for commercial purposes?

MIT-BIH is here. https://physionet.org/physiobank/database/mitdb/ I found a page about licenses, but I did not know about commercial availability of learned models. license description is here. ...
3
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3answers
64 views

Consider licence of third party software that is required to be installed?

I would like to publish my application with the GPLv3 licence, as the used libraries are also published with the GPLv3 licence. So far so good. But besides this my application needs a further ...
1
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0answers
39 views

How to update GPL licensed software distributed to a customer without providing the source code on each update?

This question extends my last question about 'How to comply with the GPL when providing auto updates'. Problem description: I want to distribute a Debian VM with Debian based docker containers, so ...