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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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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436 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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22 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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153 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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516 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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143 views

How could other people know that I'm using GPLed libraries in my application?

I know nothing about GPL before, and I am living in a country that doesn't have much care about licenses either. I am studying this GPL thing today and I came to know that when I am using a GPLed ...
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65 views

Using libraries with GPL license [duplicate]

This may be a simple question, but when using libraries that are licensed under GPL, I'm not sure what part of the license applies. I have two separate libraries in a JAR file that I'm using that I'm ...
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1answer
159 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?...
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2answers
107 views

Am I violating the terms of the base licenses when I publish my project on GitHub without any license and/or links to authors of used components?

Many developers, students, etc. put their code on GitHub without any links to authors of used components and licenses. I tried find a new job and yesterday HR ask me create Rest API with django + drf ...
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2answers
1k 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 ...
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1answer
314 views

If I build a smart bomb with Linux inside, is it enough to put the GPL text in the firmware to comply with the GPL?

If I build a smart bomb with Linux inside, is it enough to put the GPL text in the firmware to comply with the GPL if I drop the bomb? I reckon that when I sell my bomb to the military, they are ...
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1answer
78 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, ...
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2answers
142 views

What happens to Cloud providers, if I download a GPL Binaries from cloud storage service?

1) For example, if I upload a GPL binary to google drive and then provide a link for everyone. Does it mean that GOOGLE should now provide the sources for the binary if anyone requests them? 2) What ...
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1answer
118 views

Does the GPL/RPL Apply to me as Well? [duplicate]

I want to create a commercial application, but I want to make a significant portion of my back-end open source. It applies some really interesting math that I want people to learn from, but I don't ...
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1answer
44 views

How to handle license files in cx_freeze'd python applications

So I have a python application which uses different packages, which are licensed under different OpenSource Licenses.(MIT, LGPL, GPL, and other OSS licenses) I want to create a bundle for Windows ...
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1answer
47 views

What counts as disclosing source for software licenses?

MPL v2, GPL v3 and other licenses alike require giving users access to source code. Having read both licenses, I did not come across specific examples of how to disclose source code, so my question is ...
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1answer
55 views

Which of the license is used by SaaJ-api ? CDDL or GPL?

I am looking at https://mvnrepository.com/artifact/javax.xml.soap/saaj-api It mentions 2 licenses: CDDL and GPL. Does it mean it uses both licenses ? or any one of them ? If just one of them how to ...
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1answer
216 views

License of Ubuntu MATE for commercial use

I would like to know what to be careful about using Ubuntu for commercial use. I use Ubuntu MATE (Ubuntu 16.04.2 LTS), some packages, and applications I created. I only use my applicaton on my own ...
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1answer
220 views

LGPL license for shotwell, VLC media player

Just curious to know, why are the programs shotwell and VLC media player released under LGPL? Maybe because that they are written just not for Linux, but for other proprietary operating systems too? ...
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1answer
29 views

Can I start GPLed program within my code without making my program GPLed? [duplicate]

I have a program that I intended to release as MIT[0]. But I noticed that one of dependencies is GPLed. Fortunately I only use it via a system call to make final production step of graphics. my code ...
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1answer
85 views

Which GPL is suitable for the VS Code extension?

I wrote an extension for Visual Studio Code. VS Code source code is available under MIT license. But VS Code binaries are licensed under Microsoft product license. Under what GPL (latest versions) can ...
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1answer
46 views

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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1answer
698 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 ...
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0answers
15 views

Are GPL licenses revokable? [duplicate]

I would like to know whether one day, say, Linus Torvalds could change his mind and make the Linux kernel proprietary, or change it to a totally different license? Or is the GPL license irrevokable, ...
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1answer
45 views

Is the avahi-client license incompatible with its dependency on DBus?

Avahi, including the C client library, is licensed under the LGPL. On my system, (and I believe everywhere) libavahi-client.so.3 links to libdbus-1.so.3. DBus is licensed under a dual license, GPL OR ...
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1answer
108 views

Possibilities to use a GPL-v3 licensed library in a closed-source game

Licensing is absolutely not my topic and I'm currently trying to learn about it while developing my game. I'm trying to implement the espeak-ng library into my game, so I can use it to generate robot ...
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1answer
61 views

What open-source license should I use for my tool?

I have developed a tool that uses another tool to convert a file from format#1 to format#2. And currently, my tool works only if it is given the file in format#2 as input, and so, it depends on that ...
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1answer
2k views

Is it legal to multi-use a 100% GPL theme from ThemeForest?

If you go to the Google search site:https://themeforest.net/item/ This item is licensed 100% GPL, you will find a lot of GPL themes. Is it legal to use a theme which I buy once in multiple sites? (...
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1answer
891 views

Difference between GNU-GPL and BSD?

I was wondering what is the difference between these two licenses? I have looked around for GPL but in some places they say you have to post your code to public and in some places they say you don't ...
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1answer
171 views

Does violating the “four essential freedoms” of the FSF mean you are violating GPL? [closed]

I was reading over a products license information and found out that they use multiple iterations of the GPL license (GPL v2, LGPL, a few more). I was wondering if the product that is licensed ...
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1answer
88 views

GPL and “shadow Linux”

This is a follow up of my existing question Does GPL apply to proprietary software that is linked in through a compatibility layer, but has a new major focus (i.e. the shadow Linux). Suppose a Linux-...
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1answer
65 views

Free Pascal and LGPL

I want to modify this program and compile it using Free Pascal compiler. The above program is licensed under GNU General Public License version 3. I know little about Free Pascal, and reading the FAQ ...
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1answer
51 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 ...
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1answer
43 views

closed source binary in Linux image

I've got question about following situation: if i have closed source binary and device with Linux, i want to sell this device with Linux and closed binary in its filesystem. Is it legal to keep source ...
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1answer
479 views

use fabric.io crashlytics in gpl android app

fabric.io Crashlytics is a service for watching number of daily users, log of crashs and ... . Can I use fabric.io Crashlytics in GPL Android app? If the answer is yes, should I publish the API key ...
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1answer
242 views

What's “use CDDL for things already under CDDL” mean?

Circa 2006, blogs.sun.com/chandan/entry/copyrights_licenses_and_cddl_illustrated says, in comparing EULA, GPL, CDDL and BSD, that one must "use CDDL for things already under CDDL". But what does it ...
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1answer
556 views

Can I change my Qt project license?

I have non-commercial Qt license, but I need a static compilation option because as I know, my program needs many DLL files and I want to have the possibility of running my program on another machine ...
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1answer
51 views

Can I write on my website and make the code private when the source code is partially copied from an open source GNU GPL V3 project [duplicate]

I've rewritten my personal website using this https://github.com/ptrpov/ptrpov . I've made some significant changes. Like I did on my previously (built from scratch) website, I'd like to add ...
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1answer
237 views

Linux Licensing Questions

How do some real time vendors license Linux when it is already open source? I have had a hard time finding licensing models for companies/distributions like Wind River Linux and RedHawk Linux.
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1answer
385 views

Can you commercialize your own GPL product? [duplicate]

I've been wanting to make my own open-source project under the GPL. However, I was thinking of making a paid "professional" version that adds features that are closed-source. Is this possible? Edit:...
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1answer
120 views

GPL licensing a web app software

I am in the early stages of building a software with a team to design websites, kind of like WordPress. You download the system on your website, and go on from there. People can be allowed to expand ...
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1answer
126 views

Need sellable license-text for “commercial use” of GPL v3 software [closed]

I'm the creator of a software which is licensed under GPL v3. But now I want to sell the software for "commercial use" like Fancybox (http://fancyapps.com/fancybox/3/#license). I'm a real noob in ...
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1answer
61 views

Common licencing types [closed]

I'm an independent software developer and thus have little to no knowledge about licenses or general software law. Could someone list the most common licenses and what they mean in layman's therms.

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