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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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5
votes
3answers
157 views

What does 'terms that are compatible with the GPL' mean?

From Octave's FAQ, Code written using Octave's native plug-in interface (also known as a .oct file) necessarily links with Octave internals and is considered a derivative work of Octave and ...
4
votes
2answers
182 views

License similar to GPL, but allowing to incorporate into the commercial version

Continuing this question: I want a license L which is generally like GPL, but allows us to do the following: License our software under both L and a commercial license. Require that every patch (or ...
4
votes
1answer
535 views

Front-End vs Back-end vs Redistributions - Must I disclose my source?

A couple of the gems that I'm using in my rails backend are MIT licensed and I do want to go commercial with this app - that being said the MIT license requires that I include the copyright and ...
4
votes
2answers
196 views

Can library that took parts of library licensed under GPL with Classpath Exception be licensed under MIT?

I've spotted the library (library M) where developers took some source files from GPL with Classpath Exception licensed library (library G), included them in their project and changed namespaces and ...
4
votes
1answer
503 views

Can I publish my iOS app store app code to GitHub under MIT/GPL

I am about to start developing an iOS app which will be published on Apple App Store. While developing this app, I am thinking to push all the code to GitHub public repository; pull requests from ...
4
votes
2answers
76 views

Can the original author see other people's modifications?

In the topic Appropriate licence for later merging back, one of the desired criteria was, I want to be capable to merge any derivatives back [...] from somebody who made modifications [...]. ...
4
votes
1answer
657 views

Software: If I bundle built (compiled) GPL 2 licensed software with commercial software package how does it affect my software license?

If I bundle a piece of compiled software (in this case, FFMPEG) which is licensed under GPL 2, with my own commercial software (which is not licensed under any form of open source license), does it ...
3
votes
2answers
1k views

GPL, LGPL or MPL for open source app with closed source Pro flavour

I have had a fairly popular Android business app on Google Play a while now. It is available as a free version and a version with features targeted to bigger businesses. I am currently in the process ...
3
votes
1answer
68 views

Do Amazon AppStore terms allow for GPL software?

The terms for the Apple AppStore have been shown to conflict with the GNU GPL in such a way as to prevent GPL apps from being in the store — see this question. Are the Amazon AppStore (the standard ...
3
votes
2answers
136 views

Using a GPL 3.0 parser generator for an MIT licensed program

If I used a GPL 3.0 licensed program like jacc to generate a parser generator which I incorporate into an MIT licensed program, do I have to release my program as GPL? Note that the grammar ...
3
votes
1answer
112 views

Licenses for scientific software

Edit: This question has been revised into a more specific question here that does not muddy the waters by bringing up the difficulties of supporting scientific software financially. Please see the ...
3
votes
1answer
316 views

GPL and Python import statement

If a Python module X is licensed under GPL and a Python script or module Y imports X, does it make Y necessarily GPL also?
3
votes
1answer
124 views

Which statement of GPL enforces publishing source codes that uses GPL?

I've been looking at the web articles, and following statement seems to be true: When there is an application source code which just uses some GPL library, but does not contain any part of the ...
3
votes
1answer
47 views

GNU General Public License version 2 on a game image resource

I am creating a commercial game, with most resources using CC-BY-xx licences for graphics, sound etc. I have found some graphics that i want to add to my game. However, these graphics are licensed as "...
3
votes
1answer
258 views

Can I use proprietary library in a GPL-Compatible library loaded on a gpl Program?

I am asking mainly to be sure. To describe it better, I want to use some external functionality that is available through a proprietary library. Since the library IS NOT compatible with GPL Programs, ...
3
votes
3answers
464 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 ...
3
votes
1answer
51 views

Modifications of server software under GPL, with web/CLI interface

Let's say we have a piece of software which is licensed under the GPL. There are no binaries; it's a framework of groups of services and libraries of Python code running on a server. As far as I can ...
3
votes
1answer
600 views

Can Public Domain use GPL licensed library/program?

A similar question already asked here (https://softwareengineering.stackexchange.com/questions/159023/can-cc0-code-use-a-gpl-library) but my question is a little bit different, perhaps more accurately....
3
votes
4answers
142 views

Non-public data in GPL project

Is it possible to release software under GPL license but not publish one small part of it which contains data that really shouldn't be available publicly (I mean private API keys, etc.) If not, which ...
2
votes
2answers
956 views

how did Elastix move from GPL to proprietary?

I'm just scratching the surface for VoIP with Elastix. I notice that Elastix 2.x is "open source" but 5.x is proprietary? Looking into licensing from the manual on Elastix brings: http://www.3cx....
2
votes
1answer
39 views

Can I sell my primitive material which is intended to be processed in a factory software under GPL?

If I develop a parametric 3D mesh creation tool and license it under GPL (because it is dependent on some geometry libraries also under GPL), can I sell 3D mesh data for use with the tool and would ...
2
votes
1answer
354 views

Java OpenJDK GPL license with CLASSPATH EXCEPTION

The JDK license said: only where Oracle has expressly included in the particular source file's header the words "Oracle designates..." Then, is all the OpenJDK released under the GPL with ...
2
votes
1answer
82 views

Automated GPL download and installation in BSD project

I have a dependency on GPL-licensed library in the library I maintain. My library is BSD and must remain as such. Wondering if I can automate the download and installation of the GPL dependency in ...
2
votes
2answers
126 views

Can a SaaS product by successfully developed as Open Source?

The accepted answer on How can large open source projects be monetized? mentions open source SaaS. Once you are successful enough in one of the above, you can afford giving away your software for ...
1
vote
1answer
55 views

Collective work using a GPL library

Assume I have a python script that runs a GPL library binary through command line (through os.system('GPL call') and then analyze the output (which comes from the terminal). Is that a collaborative ...
1
vote
1answer
64 views

Is open source license compatible with a patent-encumbered standard?

Let's say heic is a patented image format. There is an open source implementation of heic called "libheif". GIMP use it to edit heic images, however, development team of Eye of Gnome(EOG) refuse to ...
1
vote
1answer
763 views

Can I use a GPL component in my site without having to disclose the sources of my site?

In which of the following situations can I use a GPL component in my website without having to GPL or disclose the source code of my entire site? The component is a JavaScript library that goes into ...
1
vote
2answers
339 views

Pacifist copyleft-like partially-open-source license

I'd like a license restricting use to non-military projects, but otherwise just like the GNU GPL. (There is obviously no point in making a permissive license like that, because editing a comment is ...
1
vote
1answer
242 views

Is it permissible to install Cygwin (GNU GPL) and its packages from within an installer for a proprietary and commercially sold application?

Is it legal to package the Cygwin installer executable — and some of its corresponding packages — and run it from another installer that installs a proprietary and commercially sold application? ...
0
votes
0answers
382 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 ...
0
votes
1answer
75 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 ...
0
votes
1answer
62 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 ...
-3
votes
1answer
102 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 ...