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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4
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1answer
402 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. ...
59
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5answers
22k views

Can I use GPL libraries in a closed source project if only the output is distributed?

If I create a closed source application which uses some GPL licensed libraries but don't actually distribute the software, only its output, can I keep the software closed sourced? Specifically, I am ...
7
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2answers
725 views

Can I dynamically call a LGPL/GPL software in my closed-source application?

This question was originally posted by marcgg on Stack Overflow (second link might be visible to 10k+ only), but was removed there due to being off-topic. It has been preserved here in light of this ...
3
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3answers
300 views

How I can monetize GNU GPL product developed (and currently updating) by me?

I am a developer of Open Source product under GNU GPL license. I always looking for some time and power to make important changes in it (fix bugs and add more improvements), however, it becomes harder ...
9
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2answers
1k views

What are the implications of licensing a JavaScript library under GPL?

When searching for "gpl javascript" in Google, I currently find these five first results: A piece by RMS warning about how we are using more and more web apps and that we should care whether these ...
-1
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1answer
62 views

Can I commercially use a fixed source code distributed under GPL?

There is this source code on GitHub (a PHP class, around 200 lines of code) distributed under GPL license which has some bugs and is not useful to me unless those bugs are fixed. If I fix those bugs, ...
2
votes
1answer
68 views

PHP mysqli and pdo drivers licensing

I use PHP language in my application and use these two drivers to connect to MySQL - mysqli and pdo. I know that PHP is licensed under PHP License v3.01, so I can freely use it, but at the same time, ...
3
votes
1answer
66 views

About using GNU GPL 2, GNU GPL 3 and LGPL software in a commercial product

I build a commercial product, which uses some third party products licensed under GNU GPL 2, GNU GPL 3 and LGPL. I do not modify myself the source code of these third party products and I do not ...
7
votes
1answer
909 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 ...
3
votes
1answer
53 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 ...
1
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5answers
179 views

Who is the copyright holder when GPLv2 project API is used?

I've read a lot of articles and still can't find the answer to the following question. There is a project that uses GNU General Public License version 2 license, developed by CompanyX. We (...
0
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1answer
33 views

LGPL3 code in GPL3 project

It seems like this should be obvious, but I'm not finding an answer. LGPL is a subset of GPL, IIRC, so can I use LGPL code in a GPL project?
5
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1answer
80 views

Is it legal to install GNU GPL v2 software alongside my proprietary software

I have developed a set of python-based tools for network testing, and I am currently building a GUI around it and I am going to attempt to sell it. My issue is one part of my code relies on wireshark, ...
0
votes
1answer
121 views

If I modify JS/CSS in GPL-licensed WordPress themes/plugins for my website, do I have to include all the changes?

If I modify JavaScript/CSS in WordPress themes/plugins (GPL licensed) for my website, do I have to include all of the changes in the header of the file? I know that use css/js files in a website is a ...
5
votes
1answer
106 views

Is Google Analytics compatible with GPL?

If i include Google Analytics JS code inside a php page GPL licensed (WordPress template), is it ok with GPL license? I'm asking beacause I think Google Analytics is not open source code.
4
votes
1answer
112 views

Relicensing a fork of a GPL project and source code distribution requirements

(Reposted in here because this is the more correct section.) So the situation is this: I run a project which is a fork of an emulator licensed under GPL v2, my fork respects that and has not ...
-1
votes
1answer
254 views

A question about closed-source software with GNU GSL for commercial and free-to-use cases

I plan to build a closed-source software with C++ language using GSL (GNU Scientific Library). This software is made by compiling my source codes into executable. By the way, my source codes use GSL ...
3
votes
1answer
84 views

Does it make sense to license an application (not library) under LGPL?

Say, I have a game engine which is meant to be an executable, not a library (i.e. it has its' own main() and has the top-level control. It calls on other libraries but cannot be used as a dynamic ...
3
votes
1answer
121 views

Can GPL v3 Back-End be used for iOS apps without opening of whole program code

We are developing an iOS app in which all of the front-end is based on MIT/Apache/BSD components, while server part is fully on GPL v3. All these licenses are compatible, so there is no problem with ...
1
vote
0answers
62 views

Redistributing LGPL source code or GPL packages on a BSD Licensed package

I have a python project licensed under BSD-License. On its bottom I use a source code written in C++ which is licensed as LGPL and I have an optional dependency on a python package licensed under GPL. ...
4
votes
1answer
45 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 ...
5
votes
2answers
2k views

Can I relicense my own GPL code into Apache/MIT? [duplicate]

Suppose that I distribute my own code with a GPL license, even though the code use just external MIT or Apache code. In particular, no preexisting GPL code is in it. Can I later relicense it under ...
6
votes
1answer
507 views

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 ...
2
votes
2answers
115 views

Selling GPL derived source code

I modified a GPL opensource project and distributed the binary free of charge on Google Play. I'm planning to release source code per request via email only. My question is if someone ask for the ...
0
votes
0answers
18 views

Should I distribute ProxySQL configuration as Open Source in case of combine ProxySQL with project under AGPL?

I Have AGPL project(suiteCRM) which communicates with MySQL but I would add something between suiteCRM project and MySQL. This thing will be a project under GPL names ProxySQL. I'm not sure if this ...
1
vote
2answers
205 views

Implications of using GPL licenced code only during testing

Let's say I'm working on a software library in which certain unit tests rely on GPL licensed code but the code that a user of this library would install on their system does not interact with GPL ...
0
votes
0answers
20 views

Licensing LGPL software commercially [duplicate]

We have a mobile app software and we distribute it with LGPL v3. It uses other 2 components licensed under LGPL-v3 and MIT. For our own code, we are have the full ownership (i.e. nobody else have made ...
4
votes
1answer
71 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
votes
1answer
84 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 ...
0
votes
1answer
141 views

Can I change license of my GPL project? [duplicate]

I have created a project from scratch and made it available online under the GPL license. Can I release a new version of the same project that does not have the GPL license? I would also like to know ...
0
votes
1answer
40 views

What license version should I use for an open-source PyQt5 application on GitHub

On the Riverbank License FAQ for PyQt5 it specifies that PyQt5 is under the license GPL. I'm not sure whether I should use GPLv1, GPLv2 or GPLv3. What license should I choose and it is MIT compatible?...
0
votes
2answers
426 views

Can someone explain the basic requirements of Open Source Qt LGPL to a beginner?

I’m a automotive electronic and electrical engineer with little to no software experience. I need to hire a developer to develop Windows GUI application that is used to configure and program a ...
1
vote
1answer
34 views

FDL code in GPL repo

I have a repository (GPLv3) full of configuration files that I recently noticed uses some FDL code (FDLv1.3). I have the following questions: To resolve this issue and keep the code: Could I re-...
13
votes
3answers
1k views

Is it possible for Linux developers to retroactively “pull their code” from Linux?

Linux now has a Code of Conduct. In the resulting backlash some people have claimed that developers can "flip a kill switch" or "pull their code" from Linux. They seem to mean that developers can ...
44
votes
10answers
9k views

Is GPL “for research purposes only” self-contradictory?

So I used a piece of software which claims to be open source and is licensed under "GPL for research purposes only". As far as I know, GPL 2 and 3 are not themselves free, in sense that you can't ...
10
votes
4answers
716 views

Red Hat acquires Ansible - why?

In October 2015, Red Hat acquired Ansible, the developer of the famous configuration management software Ansible, apparently for a price of about $100M. Ansible, the software, AFAIK is licensed fully ...
-1
votes
2answers
246 views

Restrict GPLv3 to non-commercial use [duplicate]

My question is very similar, but crucially different from this one. I have a library that I want to offer under a dual license: GPLv3 and commercial. GPL so others can read, maintain and modify if ...
4
votes
3answers
465 views

Redistributing MSVC runtime components with GPL application

A library I used in my native Visual C++ application was GPLv3-licensed; I found the GPL acceptable, and thus I was planning to make my application GPL-licensed as well. The application depends on ...
16
votes
3answers
3k views

Can I insist on GPL version 3.0 terms when requesting GPL code from an embedded manufacturer?

I have an embedded device that contains software licensed under the GPL version 2.0 'or any later version'. The company that produced it never released any GPL code, and I plan to request it from them....
3
votes
2answers
651 views

How much code does the manufacturer of an embedded device that uses GPL software have to give me?

I have an embedded device that runs Linux among other software licensed by the GNU GPL. The manufacturer never released any GPL code, and I plan to demand that from them tomorrow. My question is, do ...
20
votes
1answer
3k views

Do defunct companies have to comply with requests for GPL code?

I have an embedded Linux device. The company that developed and produced this device is now defunct, having been sold to Flex Ltd. When this acquisition occurred, it seems that the employees signed ...
7
votes
2answers
206 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 ...
5
votes
1answer
230 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 ...
-2
votes
1answer
43 views

Creating a new open source License based off of the GPL? [duplicate]

Hey suppose I would like to create a new modification of the GPL 3.0 license, would I be allowed to copy the GPL, modify it, and then rename it to something else? I.e. is the GPL license itself open ...
1
vote
2answers
216 views

GNU GPL question: Do I need to open source my entire app?

I am using the Telegram API (licensed under GNU GPL) to integrate chat services within my own application. The developer of Telegram asks to - "Please remember to publish your code too in order to ...
1
vote
1answer
403 views

learning from GPL infects code

Does learning some advanced, non-trivial coding technique from exiting GPL code (or code with viral license in general) turn my own work into a derivative work? Are there any widely accepted ...
3
votes
1answer
75 views

Will distributing my program with virtual box make it GPL?

So I'm wondering if I distribute my application (as an .iso file) with virtualbox portable http://www.vbox.me/ which is licensed under GPLv2, will that make my program also under the GPLv2 license? Or ...
4
votes
1answer
369 views

Optional GPL dependency in commercial Python application

I am developing a commerical clock application ("JJClock"), which is written in Python. What I will deliver to my customers will either be a .pyc file or a .so file ("compiled") with Cython -- the ...
2
votes
2answers
39 views

Aligning employer's and employee's interests in a hybrid/parallel open-source strategy

I work for Institute X, an academic institution looking to expand its commercialization opportunities. I want to develop with them a hybrid-open-source strategy for the code written by me and my team. ...
3
votes
1answer
85 views

How should I license my project if it can install GPL-based plugins?

I'm developing a software which has two parts, kernel and plugins, their code are completely separated. Here's the question: Some of the plugins should be GPL based, as they invoked GPL code. The ...