Questions about the GNU General Public License

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-3
votes
0answers
38 views

What is a 'user' by the GPL v2? [on hold]

If I distribute proprietary hardware using GPL licensed software or derivates from those (eg. Linux, Linux applications), who are the 'users' I have to provide the source code for? Simply spoken, if ...
0
votes
0answers
88 views

Am I right that anyone can use PyQt free of charge for commercial and closed source applications? [closed]

This is a question about licensing mechanics of PyQt, GPL and optional Riverbank GPL Exception. The whole point of the question: Am I right that anyone can use PyQt free of charge for commercial and ...
-1
votes
0answers
57 views

Is it legal to distribute a Python commercial and closed source application together with QtPy or PyQtGraph linked to PySide? [closed]

This question is a twin brother of the following question: Am I rigth that anyone can use PyQt free of charge for commercial and closed source applications?. But it still differs in important details. ...
5
votes
1answer
79 views

Is restricting endorsement using author's name compatible with GPL?

I would like to link a GPL project to another project with the following clause in its license: The name of the author may not be used to endorse or promote products derived from this software ...
1
vote
1answer
58 views

Using GPLed headers in LGPLed library

For a specific device there exists a Linux kernel module. This module only initialized the device and provides control mechanisms to user land via ioctls and mmap. To use this the device properly one ...
2
votes
1answer
161 views

CentOS/RedHat devtoolset license implications

Can I use the RedHat devtoolset to build non-GPL-ed software? Do I have to mind any caveats? From my understanding, the devtoolset knows the limitations of the standard libraries shipped with older ...
2
votes
0answers
56 views

Do all transitive dependencies of GPL software have to be compatible with GPL?

Library A is licensed under GPLv3. I want to write a program that uses that library as a dependency (programming against interfaces and using classes in that library), so I have to put my own program ...
4
votes
2answers
191 views

Adding a new file to a GPL project - how do I carry along/modify copyright information?

Continuing from Author has inserted copyright into code with gnu public license notice - implications?, can I add my author name to a new file (with original code) that I added to a project that comes ...
2
votes
2answers
53 views

Additional clause in GPL'd source code

I noticed this in the heading of some source code This core is written with the advise and consent of [author] and is released under the GNU Public License. This core is freely available for ...
13
votes
1answer
5k views

Confusion about dual license (MIT/GPL) javascript for use on my website

I've read all of the posts I can find on this and I'm still not sure of the answer. I'd like to use a jQuery plugin on my website that is dual licensed under MIT and GPL. Does the dual license mean ...
0
votes
2answers
72 views

Can I release software under the GPL if it must be built with a proprietary compiler?

The compiler doesn't leave its own code in the software or link proprietary libraries with it, the source code is exactly the same one I used throughout the development process, everyone is free to ...
1
vote
1answer
31 views

Software derived from LGPL library

In my project I've used a library marked with the LGPL license as a reference example to developed my own library which is completely different but it works roughly in the same way. Now I would like ...
4
votes
1answer
49 views

GNU GPL v2 Copy Left clause, delayed release of source

I am using a modified Linux kernel from a NAS company for my own project. It has been more then one month since the company released a new version of their software which includes the modified kernel ...
0
votes
3answers
137 views

Including GPL software in closed-code project

Regarding GPL software use in a commercial project, I have the following situation: I would like to commercially distribute an Excel-Macro application, which uses a GPL licensed software (G77 ...
5
votes
3answers
1k views

Is it legal to distribute a GPLv3 licensed binary through the apples' app store?

I wrote a small multiplatform app and I am considering publishing the osx version in apple store. I've licensed the app under a GPLv3 license. I sort of like the GPLv3 license but I also like the ...
1
vote
1answer
60 views

call a non GPL-Program from a GPL program via fork

I downloaded a GPL program, I want to modify this GPL program in order to make it calling a non gpl program (commercial license) via fork+exec. Concerning the input/output data of the non-gpl ...
2
votes
1answer
37 views

Open Source Licenses like GPL in Multiple Licenses models

How can an open source license be compatible with a multi-licensing scheme? According to a similar question, the author of a library could potentially change its license. But problems arise when the ...
0
votes
1answer
47 views

Under what circumstances would I have to release a modified version of source code (GPL) [duplicate]

I am working on a social networking platform using a database wrapper released under GPL. I'm fairly new to using open source software, so I'm not sure what would require me to release my source code. ...
11
votes
3answers
512 views

Licensing on Github

I'm uploading to GitHub for the first time and I am facing all sort of doubts about licensing. I did not know that topic was that uncovered in the net! But even it is complex, my situation is so ...
2
votes
3answers
68 views

GPLv2 code as a separate process in a closed-source iOS app?

I'd like my (currently) closed-source iOS app to use some GPLv2 licensed code. The code I want to use is simply a converter from one file format to another — nothing too complex or proprietary. Given ...
2
votes
5answers
726 views

How to make a GPL license with more severe penalties?

I am considering open sourcing some software, but when I read the answers on this questions, it seems like the penalty of ignoring a GPL license is rather small, compared to the costs of the suing ...
-1
votes
1answer
66 views

May I relicense my project from GPLv3 to Apache 2.0? [duplicate]

I am about to publish an Android app project I would like to do it using GPLv3 license to avoid it being used in proprietary projects for now. If I change my mind in the future, since I am the ...
1
vote
3answers
88 views

Can we use a GPL 2 product for the commercial purpose?

Note: There are many questions answers related to the licensing. But I think my requirement is specific, so asking a separate question. We are considering to fork a GPL 2 project and use it for ...
2
votes
2answers
134 views

Distributing GPL-ed software with lost source code

Thought experiment. Tom is a software developer. He releases his relatively simple software under GPL. Jerry forks his source code and creates a world savior software with months or years of hard ...
0
votes
3answers
77 views

Re-releasing LGPL code as AGPL : need advice on how to phrase license

I have written a compression codec that I am releasing under the AGPL. I would like to link it with FFmpeg, a video streaming application. FFmpeg is licensed under the LGPL, but since it supports ...
1
vote
2answers
1k views

How does trilicense (mpl,gpl,lgpl) work when you want to use it on public website

I have tried to search for this answer for quite some time and I have gone through all the various FAQ's and documentation regarding the three licenses; but none of them have been able to answer a ...
6
votes
3answers
661 views

GPL Notice on Snippets

Is it ok to put a GPL notice inside a small script or a snippet? This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as ...
1
vote
0answers
95 views

Is there any proof a permissive licenced (MIT/BSD) project will suffer from closed forks? [closed]

Hi is there any stats that a MIT/BSD licence project is hindered (as far as getting people to contribute) from closed forks? Stats or resources but not opinions of which license is best please. ...
1
vote
2answers
76 views

GPL dictionary usage in commercial application

We have an word game commercial mobile application for which we want to use dictionaries for various languages. Most of them have GPLv3 or CC-NC3 licenses. We modify the dictionaries: basically, we ...
5
votes
1answer
67 views

Partial Code Copy from another Open Sourced Library

I need to copy a method from an Apache licensed Javascript library into my GPL licensed javascript library. Can I copy and paste the method into my library in this license context? If so, how am I to ...
1
vote
3answers
802 views

GPLv3 Software vs. BSD (3-Clause) OpenSource Project .. i don't get it

Preamble: If I say "BSD" I mean the 3-Clause BSD license If I say "GPL" I mean the GPLv3 license I am NOT the author of the GPL project I am the author of the BSD project Simple Task: I want to ...
0
votes
2answers
102 views

What happens when a software that is open source without any license is later licensed with gpl version 3?

I want to use certain piece of software for my commercial project. The software that will be making use of is open source and I will modify the source code to suit my needs. Say at a later date, the ...
1
vote
1answer
90 views

Piwik License question

I need to create a specialized analytics app based on Piwik, it will be a commercial SaaS service for small businesses. It uses the piwik javascript tracker, API and the DB to store events, custom ...
1
vote
2answers
886 views

Do donations count as “commercial use”?

Lets say I'm building community that uses some webapp. These webapp uses a a modified version a a GPLv2 licensed theme. Additionally the community uses a donation mechanism to fund itself. Donation ...
0
votes
1answer
169 views

Software piracy and GPL [duplicate]

Consider the case below: A Wordpress plugin must be GPL since Wordpress itself is GPL There are some plugin authors selling premium WordPress plugins, and assume the authors are okay with the GPL ...
1
vote
2answers
117 views

Using output of GNU GPL software in commercial purposes [duplicate]

I'm not talking about distributing any GPL software. I'm talking about using the output of a GNU GPL software in commercial purposes. For example: I use kdenlive for my video editing and inserting ...
3
votes
3answers
86 views

GPL-3.0 based code in proprietary web application

I am creating a website in php for one of my client. i wanted to use few piece of code from a Open source code based on GPL-3.0 license. e.g i wanted to use validation code from that lib and modify ...
0
votes
2answers
52 views

GPLv3 licensed library requirement and licensing own library BSD [closed]

I have been searching the web for quite some time now, but the plethora of opinions/comments/articles about licensing questions make it difficult to verify how trustworthy the various sources are. ...
2
votes
2answers
56 views

Creator acknowledgement for a modified project (under GNU GPL)

I have been modifying an existing software (which was under the GPL licence). At my workplace, they needed to use the software, but needed some modifications (like new features, different structure, ...
2
votes
2answers
93 views

GPL source code access in subscription model?

Purely out of curiosity, I was posed the question with a hypothetical game corp. that has an online game that they require players to pay a monthly fee for. The specifics was that their service ...
0
votes
2answers
41 views

Does the GNU General Public License (GPL) allow release under a different version of the GPL?

I'm currently modifying code released under GPL v2.0, and I'm wondering if the GPL allows release under a different version, say, GPL v3.0 or if it has to remain under the same version as the ...
0
votes
1answer
81 views

Relicensing GPL to more permissive license [closed]

I have been developing a GPL GUI application for many years by myself in my free time. I have been approached by a company who want to use my code as part of a propitiatory product. This would require ...
1
vote
1answer
75 views

using source code for individual organization vs sharing source code outside organization

If an organization develops their own software internally (with no license agreement) but uses other software frameworks that are open source that we modified to those frameworks work for us ...
0
votes
1answer
64 views

When do I have to distribute the source code of GPLv2 licensed software?

I was wondering if there is a time line when I have to distribute source code for a binary that has been released under the GPLv2 license. To my understanding, I would need to release the source code ...
1
vote
2answers
202 views

I released my project under GPL. Can I still use it in my commercial app?

So I have this super sweet library I'm working on. Let's say I release it into the wild under GPL. In tandem I'm working on a commercial piece of software, and I'd like to use this library in it. ...
3
votes
5answers
812 views

GPL Confusion (I made a mistake)

I have a project that I created under GPL (I am copyright holder). The mistake I made is I deciding to go closed source, in doing that I removed the open source download access and removed the project ...
1
vote
4answers
207 views

Charging a fee for GPL software

If I extend software under the GPL licence, I understand that my source code must be freely available. If my source code is freely available can I legally charge a fee for using the version that I ...
7
votes
2answers
367 views

Using an LGPL licensed library that may or may not include GPL licensed code from an MIT licensed library

I have read this question on SO, but it doesn't appear to answer my question fully. I maintian a library which is licensed under the MIT License. In my MIT licensed library, I dynamically link ...
1
vote
2answers
133 views

Can I make a closed-source implementation from scratch of a GPL-licensed library? [closed]

I've found a paper describing a particular algorithm I'd like to use, and published with the paper is a GPL licensed source code for the algorithm. I am wondering if I can re-implement the algorithm ...
-1
votes
1answer
55 views

How to license (PowerShell) GUI Projects [duplicate]

After almost 2 years learning how to code (in Powershell) and some help at Stackoverflow from time to time, I'm now finally on my way to release my first GUI project. I intend to release the compiled ...