Questions about the GNU General Public License

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2
votes
2answers
169 views

Application of LGPL license on a simple algorithm

The "scope" of the GNU license is troubling me : I know it has been answered many times ( here, here, ... ) but shouldn't we take into consideration the complexity and originality of a code before ...
1
vote
2answers
147 views

Incorporating GPL Code in my Open Source Project

I have downloaded a currently inactive GPL project with a view to updating it and releasing the completed codebase as open source. I'm not really a fan of GPL though and would rather licence my ...
3
votes
1answer
619 views

Is requiring attribution GPL-compatible?

Can code licensed under a clause like this: Redistribution of this work, with or without modification, is permitted if Bob Joe is attributed as the original author or licensor of this work, but not ...
1
vote
2answers
423 views

GPLv2 - Multiple AI chess engines to bypass GPL

I have gone through a number of GPL-related questions, the most recent being this one: http://stackoverflow.com/questions/3248823/legal-question-about-the-gpl-license-net-dlls/3249001#3249001 I'm ...
2
votes
2answers
318 views

Proper attribution of derived work in a GPL project

This is a continuation of me rewriting GPL project. What will be the correct way of attributing my project as being a derivative of some other GPL-licensed project? So far I came up with: HgSharp ...
4
votes
1answer
225 views

Could Apple and Microsoft allow the GPLv3 on their locked-down devices?

It seems that both Apple and Microsoft prohibit GPLv3-licensed software in the app stores for their locked-down devices (i.e. iOS, Windows Phone and the Metro part of Windows). I have heard various ...
8
votes
3answers
3k views

How does the GPL static vs. dynamic linking rule apply to interpreted languages?

In my understanding, the GPL prohibits static linking from non-GPL code to GPL code, but permits dynamic linking from non-GPL code to GPL code. So which is it when the code in question is not linked ...
6
votes
1answer
109 views

Forking a GPL dual licensed software with business owned copyrights

After receiving some threats of the copyrights holder of a dual licensed software(GPL2 and commercial) to buy the commercial version for projects in production, I am thinking to make a fork. In a ...
6
votes
5answers
696 views

Downgrading from GPL v3 to GPL v2

I have this issue with licensing. I downloaded a third-party class from GitHub and it's under the GPL v3 license. However, I used this class on another open-source project which is under the GPL v2 ...
6
votes
2answers
204 views

Licensing code under GPL: are revisions prior to adding GPL license still GPLed?

Suppose I have an already existing codebase which does not have any license headers in any of the source files, nor does it have COPYING file. So when I add all the neccessary GPL "cruft" to, say, ...
2
votes
4answers
421 views

GPL licensed software installed on commercial hardware

Do vendors need to provide sources, at the customer's request, for GPL licensed software installed on the hardware they sell? For example, a vendor sells an IPTV box and pre-installs some proprietary ...
0
votes
2answers
180 views

Switching licenses, or cross licensing existing GNU GPL v3 software

I'm in the process of making a fork of GNU coreutils with a range of modifications. I'd like to release the result as an open-source project, but I'm not so much of a fan of GNU GPL as a license. Is ...
3
votes
2answers
392 views

Using a GPL game engine

I am confused. I thought I would try and use a new game engine in order to expand my abilities, and found a nice engine called springrts. I was looking through the licensing info and it is licensed ...
3
votes
2answers
807 views

GPL - what is distribution?

An interesting point came up on another thread about alleged misappropriation of a GPL project. In this case the enterprise software was used by some large companies who essentially took the code, ...
4
votes
2answers
2k views

Running software as a service using unmodified GPL(v2+) program as a core dependency: must the SaaS source code be released?

I'm designing a software as a service project which will only be accessed online. I may have a hard dependency on an executable which is covered by GNU GPL (v2 or later). I understand that my code, ...
10
votes
4answers
611 views

How does the GPL work in regards to languages like Dart which compile to other languages?

Google's Dart language is not supported by any Web Browsers other than a special build of Chromium known as Dartium. To use Dart for production code you need to run it through a Dart->JavaScript ...
1
vote
3answers
246 views

Using a GPLv3 library in a freemium business model

I read several related questions about the use of GPLv3 in a commercial app but they don't say anything about a freemium app. I would like to use a GPLv3 library in two apps, a free one (with limited ...
3
votes
3answers
222 views

Confused on selling GPL. How is it consistent with this section?

(Written against GPLv2.) It is always said that GPL does not prohibit selling the software, as long as its source code is provided under the same license (GPL). Now, I do not understand how it is ...
3
votes
2answers
134 views

Choosing the right license for a testing framework

I've finished a first working, releasable version of a testing framework. Prior to release, I want to apply a proper license to it. Normally I'd choose something like GPLv3 but here I am pretty ...
0
votes
1answer
77 views

Redistributing BSD-licensed software?

Is it acceptable to distribute unmodified BSD-licensed software (pyglet) with GPL-licensed software I created? The BSD allows for sale of modified software, I know, but does it allow re-licensing of ...
1
vote
1answer
143 views

Can someone help me understand this GPL license

I can't understand the last line of this GPL license. Copyright (C) 2011 Some Name This program is free software; you can redistribute it and/or modify it under the terms of the GNU General ...
0
votes
1answer
106 views

Do accompanying tools/scripts also need to be licensed to put my bash script under GPLv3?

This is some sort of follow up to an older question of me. So I put the GPLv3 license into the project which contains my script and also added the copyright notice and copying permission statement to ...
0
votes
4answers
244 views

can gpl code contain more restrictively licensed code? (CC BY-NC-ND 3.0)

There is a wordpress theme I am modifying to create my own derived work. This original wordpress theme has the GPLv2 licence in it's root directory, so I assume that the entire theme is GPL code. ...
0
votes
2answers
215 views

Can CC0 code use a GPL library?

Suppose my code uses (simply links to) a library licensed under the GPL. Can I release my code under CC0 (public domain dedication)? Is my code affected by the copyleft nature of the GPL?
3
votes
1answer
641 views

Are these steps enough to put my bash script under GPL 3?

I have written a bash script I would like to put under GPL v3. I've read the GNU documentation on How to Apply These Terms to Your New Programs and How to use GNU licenses for your own software. ...
3
votes
2answers
3k views

Can I link to a gpl library from a closed source application?

Ok, before everyone goes shouting about duplicate questions, yes, I've already seen several questions like this here. But none answer the question. If I link against a gpl'd library without ...
2
votes
3answers
326 views

Open Source Project: Company to register copyright

I'm releasing an open source project. I want to make it as inclusive as possible for any community that might embrace it. Specifically, I don't want the code copyrighted in my name when an entire ...
2
votes
3answers
566 views

How to manage, in practice, licence files when combining GPL and BSD licensed code?

I am writing code that uses one library with GPL (not LGPL) license, and one with the 3-clause BSD license. Since I link to GPL-licensed library, my code will need to be GPL as well. How should I, in ...
2
votes
2answers
142 views

What is the significance of each paragraph of the GPL “copying permission statement”?

Part of the FSF's instructions for placing a program under the GPL is including the following "copying permission statement" at the top of your file, under the copyright notice: This program is free ...
1
vote
2answers
142 views

Extending GPL code will make the new code GPL too?

I am currently adding some functionality to a popular open source project. It written in C and in Every file GPL license text is embedded. The functionality I am adding is not supported by the ...
0
votes
1answer
265 views

Can I use CodeSynthesis XSD (C++/Tree mapping) together with a GPLv3-licensed library?

Is it possible to write an open source project that uses generated code from CodeSynthesis XSD (C++/Tree) and then link it to a third-party library that is licensed under the GPL version 3? Some ...
3
votes
2answers
186 views

Does this BSD-like license achieve what I want it to?

I was wondering if this license is: self defeating just a clone of an existing, better established license practical any more "corporate-friendly" than the GPL too vague/open ended and finally, if ...
4
votes
4answers
351 views

Can I provide a GPL app, with different licenced logo?

I want to provide my app under GNU GPL v3, but I would be glad if people couldn't change its name or its logo. Can I provide my app under the GNU GPL v3 licence, while the app's name and logo are ...
1
vote
1answer
595 views

Placing of copyright notice in source code

I'm about to release a project of mine that I'm really proud of under the GNU GPL and I have some questions: Should one attach a copyright notice on each and every source code file from their ...
6
votes
4answers
459 views

Licensing a JavaScript library

I am developing a free, open-source (duh) JavaScript library, and wondering how to license it. I was considering the GNU GPL, but I heard that I must distribute the license with the software, and I'm ...
7
votes
4answers
968 views

Use my own GPL licensed code in a commercial product

I am developing a software project in Java/Swing licensed under GPL v3. Later, I want to create a Android application which uses the algorithms of the Java/Swing application. This Android app will be ...
4
votes
2answers
204 views

Using submitted code in a commercial product

I have made a product which I have used the GPL licence, and am now getting pull requests from other authors. The product also has a less restrictive commercial license available for purchase. Can ...
4
votes
3answers
484 views

Does using GCC specific builtins qualify as incorporation within a project?

I understand that linking to a program licensed under the GPL requires that you release the source of your program under the GPL as well, while the LGPL does not require this. The terminology of the ...
4
votes
1answer
3k views

the decisive difference between LGPL and AGPL

What is the decisive difference between LGPL(v3) and AGPL(v3) ? Both can be used in commercial production, both can also be packed within a payed product. As long as I do not change the source code ...
10
votes
2answers
934 views

What are the legal risks if any of using a GPL or AGPL Web Application Framework/CMS?

Tried to ask this on SO but was referred here... Am I correct in saying that using a GPL'ed web application framework such as Composite C1 would NOT obligate a company to share the source code we ...
5
votes
2answers
945 views

Rewrote GNU GPL v2 code in another language: can I change a license?

I rewrote some parts of Mercurial (which is licensed under GNU GPL v2) in C#. Naturally, I looked a lot into original Python code and some parts are direct translations from Python to C#. Is is ...
2
votes
2answers
299 views

Want to use a lib for my project, confused with license (AGPL vs MIT License)

Im working on a Java Software and there is a need to use some extern libraries. I found two relevant libs. The one is on an AGPL and the other on the MIT License. Now Im asking my self, can I use ...
7
votes
1answer
501 views

Open Source license compatibility checker

Is there a tool available for checking if various combinations of open source licenses are compatible with each other? I'm planning on building various tools that use an Apache license for ...
36
votes
15answers
3k views

What do I need to do to NOT steal “Hello World” code with a GPL license?

In the project, I found a file, math.c, with a big GPL header and ... //------------------------------------------------------------------------------ /// Returns the minimum value between two ...
5
votes
3answers
320 views

How should I go about re-releasing a GPL-licensed project?

A few months ago we found a library licensed under GPL that fit the bill for what we were looking to do at that time. We included it in our codebase and all was fine. Now, a few frantic months of ...
3
votes
1answer
180 views

Best way to reliably recognize open source licenses?

In many projects these days most of the novel code consists of glue code that helps combine dozens of different libraries, plugins and helpers that are licensed under a variety of open source ...
5
votes
2answers
490 views

License of current JDK

I am wondering which license the current JDK 7 (NOT the OpenJDK) is using as I know it was once under GNU GPL but with the change of the Distributor License for Java I would like to know whether they ...
4
votes
4answers
1k views

GPL License - Selling and Stealing

I understand that when any software under the GPL is given to another the recipient has the same rights over the software that I do. I also understand that this applies to "a work based on the ...
9
votes
1answer
790 views

How do I stay compliant with GPL when forking on Github?

I've recently forked a project on Github and made some modifications to it, pushed them back to the forked repository and asked the original developer to pull the changes. (I gather this is the ...
4
votes
2answers
184 views

MIT app executing a GPL command

Can my MIT/BSD licensed, open source project, or a closed source project I build and sell, execute a command, where the command is a program released under the GPL? I would not be distributing any ...