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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Building programs using qmake

Can I use qmake to build Non Qt programs with a closed source or MIT licence? The c++ code that I'm building does not include any Qt headers or link to any Qt libraries. The only mention of Qt in ...
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74 views

GPL Wrapper around Closed Source Assemblies

So I have been using this software for quite some time. AdvancedHMI According to sourceforage page is is licensed under GPL v2. At AdvancedHMI.com it states How is AdvancedHMI licensed? A: ...
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211 views

GPL code inside microcontroller

Currently I am developing a product based on microcontroller application. The product consists of 2 microcontrollers, the first one contains a GPL'ed binary code with some modifications, and the ...
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1answer
464 views

Licenses PyQt and QT

I would like to use PyQT5 and QT5 to create an -internal- application for a friend and his company. I would like to use PyQT GPL license and QT LGPL license. To respect these licenses, I need to: ...
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56 views

Distributing a Linux distribution [duplicate]

If I were to take a Linux distribution (e.g. Debian, Ubuntu, etc.) and distribute their provided ISO verbatim, would I be required to provide the respective source code for all GPL software on the ...
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78 views

GPL software with commercial use exception [duplicate]

PortableApps.com Launcer stated that: License: Free / Open Source (GPL) with exceptions for freeware and free open source. Commercial use by contacting PortableApps.com http://portableapps.com/...
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1answer
57 views

License when building a package in R: adjusted function from an existing package

I have recently adjusted a function from an existing package in R, which is licensed under GPL (>=2). If I now put the adjusted function in a package, so that other people can use it, do I have to put ...
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1answer
228 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 ...
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2answers
104 views

Is reverse-compiled assembly considered as a valid form of “source code” in GPLv2?

My project used and modified some code from project A licensed under GPLv2 written in C. Now I was wondering that if I release my compiled binary with its reverse-compiled assembly, is it GPLv2-...
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1answer
56 views

GNU GPL license for my camera Linux driver

My company manufactured a MIPI CSI2 camera and I have developed a camera driver for that camera. The driver is based on the NXP camera driver. I have changed all the function names and variable names ...
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1answer
271 views

GNU GPL Licensing

We are planning to use an Open Source GNU GPL License software for distribution also with the hardware we sell. We will make several changes to GP, software to make it work with our device and are ok ...
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1answer
65 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 (...
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1answer
96 views

Extend GPL to be informed in case of derivative work

I understand that any work that is based on work licensed under GPL must also be released under GPL. However, it does not require contacting original authors about the fact that a derivative work has ...
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1answer
75 views

Can a GPL'd library really not be used in a non-GPL application?

What text in the GPL says that a GPL'd library really cannot be used in a non-GPL application?
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1answer
82 views

Can I change my project's license before release?

I started my project with the GPLv3 license, but I haven't released or made available any code related to it yet. As I move further along in my project, I am starting to realize that it is something I ...
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1answer
76 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 ...
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1answer
55 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?
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1answer
231 views

How is the FreeBSD project able to legally distribute GPLv2 software?

FreeBSD publishes "ports" (FreeBSD's term for packages) of software covered by the GPLv2, such as MySQL 5.6. The GPLv2 states: You must cause any work that you distribute or publish, that in whole ...
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1answer
172 views

Ethereum's source code

Am I correct to assume that I can copy Ethereum's source code, modify it to create my own blockchain and issue my new currency, without any problems provided that I follow GPL and LGPL?
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1answer
760 views

Distributing App for free which uses GPL'ed code

Here is the one of the many (confusing) cases related to GPLv2/3 licensing: My company is developing an application for mobiles which will connect to servers and provide services to users. So, here'...
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1answer
69 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 ...
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2answers
132 views

GPL2 and React Native Component License

We got a notice from our internal legal team that we cannot use this react native component (https://www.npmjs.com/package/react-native-activity-recognition) because it uses GPL License and that ...
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1answer
323 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 ...
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1answer
65 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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1answer
157 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 ...
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1answer
81 views

Open Source (A)GPL(2|3) but limit resources or business for others without a paid license [duplicate]

I want to release come kind of computation engine as an open source project. For the whole source and usage, I am fine with the content of the GPL but what I want to make sure: There should be a ...
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2answers
335 views

Does the GNU GPL imply that I hold copyright?

Would it be possible to release my copyright (essentially put it in the public domain) but still have the software licensed under the GNU GPL?
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1answer
36 views

Can different parts of a project be under different licenses?

I have a personal project (in C++) I've been working on that I'm thinking of putting on Git hub. I'm finding the question of picking an appropriate license quite daunting. Part of the project is an ...
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1answer
62 views

AGPL used with a modular framework, modules are not open source

As far as i understand, the AGPL license permits me to use the library (https://github.com/Corvusoft/restbed) for a server that faces the web and is publicly accessable, as long as the server it's ...
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1answer
193 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 ...
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2answers
502 views

Am I allowed to use a GPL-3 library in a closed source web application?

I am working on an Angular5 web application. It is written in Typescript, and then compiled to Javascript. This is not a real compilation, just a minification The server which serves the .js files is ...
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1answer
251 views

Mixing GPL v3 and Proprietary library

My application has two parts GUI and a backend algorithm module. I have used a library under GPLv3 to write my GUI. In the GUI we can create a workflow of different digital signal processing units so ...
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1answer
60 views

WordPress: only built plugin GPL licensed

We are developing WordPress plugins. As WordPress itself is GPL licensed we must publish our plugin as GPL, too. Our complete plugin development environment is built on top of a lot of devDependencies ...
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1answer
279 views

Source request for a GPL-licensed Linux kernel module?

We have a CrowdStrike kernel module installed, and this is apparently the license: description: CrowdStrike Pinned Security Module author: CrowdStrike, Inc. license: GPL retpoline: ...
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2answers
104 views

Open-source project and assets

There is open-source project under GPL 3 hosted on GitHub. The project contains source code and assets (images, sounds etc.). Can I legally use only assets (without soruce code) for custom, commercial ...
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1answer
196 views

Can I commercialize my product that uses mblock?

I have a question regarding licensing of mblock based products. The mBlock 5 is a software tool for STEAM education. It is inspired by Scratch 3.0 and supports graphical and text programming. Also, ...
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1answer
184 views

Using a GPL external executable within a commercial web application

I want to develop an idea for a commercial web application. To provide that service (and get paid for it), I need to use an external executable software somewhere in the process, which is licensed ...
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1answer
153 views

Explanation about open source codes and licences

I need to understand rules that I only read but never understood completely. I'm asking here some clarifications. I read that GPLv2 licence imposes that a developer, developing a software using codes ...
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1answer
269 views

Use babylon glossary in an open source (GPL) dictionary app

I want use babylon glossary in an open source (GPL) dictionary app. They don't have any license in them. Can I use them? What about glossaries of commercial dictionaries like oxford, longman, …? Ccan ...
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0answers
14 views

GPL software, proprietary assets? [duplicate]

I'm considering utilizing a few GPL libraries in an application I'm working on, the source code for which I'd of course make available and would be subject to the GPL also. But a critical part of ...
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0answers
13 views

Using GPL and proprietary libraries in the same software [duplicate]

I've made an application that uses a GPLv3 library. This should ideally mean that I have to license my application under GPLv3. However if I take most of my application code that does not interface ...
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0answers
33 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 ...
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0answers
29 views

Using GPL licensed software with commercial app [duplicate]

I've read some answers here (1, 2) regarding combining closed source apps and GPL licensed tools, but can't quite figure out my own situation. If I create a commercial app, which is dependent on the ...
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1answer
82 views

Can the fine print (ToS) of Github permit them to seize copyright of my code if someone else uploaded it? [duplicate]

I was alarmed to see that someone uploaded one of my old GPL'd projects to Github. I don't use Github or any other Microsoft product. Github has refused to remove it however, and suggests I contact ...
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0answers
22 views

Is deleting a file under MPL 1.1 is a license violation? [duplicate]

I have an open source code repository under MPL 1.1/GPL 2.0/LGPL 2.1. My question: is deleting a file is a license violation ?
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0answers
341 views

Bundling FFmpeg command line tool (invoked as child process, no linking) - GPL license compliance?

I have written a free and open-source app (available on GitHub) that needs to bundle a static binary build of FFmpeg's command line executable tool, but does not link to its code statically or ...
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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 ...
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0answers
34 views

includeJavascript snippet inside a GPL php page, have i to include a license comment?

If i include Javascript snippet inside a GPL php page, have i to include a license comment in the page? Or insert the license comment on the main style.css is enough?
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0answers
122 views

Does video game code that uses a GPL engine have to be GPL?

Lets take a specific example. The ioquake3 engine is licensed under GPL v2, however the engine can't do anything by its self, it needs code that has been compiled into .qvm binaries in order to create ...
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0answers
444 views

Can I use GPL-licensed software in a commercial program?

Can I use GPL-licensed software in a commercial program? I know that the use of source code in a commercial program is forbidden but if I use system call functions for example I make the call a bash ...

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