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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5
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1answer
169 views

Must CC BY-SA be included for ideas and code taken from Stack Overflow?

I'm still unclear about licensing. If I have a project on Github that's licensed under GPL and found pseudocode on a Stack Overflow question, must I now dual license my code on Github and GPL as ...
4
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1answer
99 views

Including (small portions of) code copied from the internet, in a project with GPL?

I've been starting to put my code on Github. I added the GNU Public License to most repos. Am I allowed to add spinets of code from the internet that doesn't have a license? For example if I used this ...
10
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1answer
378 views

If a part of the client-side code is licensed under GPL, does the server-side code have to be under GPL as well?

Say a part of the JavaScript which is provided to the client's browser is under GPL. Does this mean that server-side code also has to be made public under GPL as well? The GPL states: "You must ...
4
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2answers
252 views

Can you use your own work in a closed source product if it's licensed under the GPL?

I'm new to licenses and don't really understand the difference between the license choices on GitHub. If you license your own work under the GNU General Public License, does this mean you wouldn't be ...
3
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2answers
2k 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 ...
2
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1answer
581 views

Am I allowed to use GNU Unifont in a closed source application?

I was looking for a .ttf font, where almost all of the unicode characters are created. Then I've found the GNU Unifont It is licensed under GNU GENERAL PUBLIC LICENSE Version 2 The application I am ...
10
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1answer
506 views

Am I forced to release my project under GPL, even though no GPL source is included?

Recently I ran into a GPL license related problem and I heard many people claiming many different things. I made this post to get this cleared up for myself. Situation There is a program which is ...
6
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1answer
872 views

Shipping GPL'd binaries in commercial product

I've read lots of discussion on shipping commercial products that link against GPLv2/3 libraries, and products that include code from GPLv2/3 software. But I haven't been able to satisfactorily answer ...
1
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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 ...
5
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1answer
57 views

Is GPL compatible with services that disallow modifying the client?

Say there is a multiplayer game (or radio station, BitTorrent tracker, etc) that would (at least threaten to) ban users if they are using a modified client. And the official client is released using ...
2
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1answer
182 views

Doom port on android. Does copy left apply?

I want to understand how the GPL license extends based on this practical example. There is an android port for doom called D-Touch This link Doom itself is licensed under GPLv2. Will the license ...
13
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2answers
295 views

Why does the FSF make this recommendation about ranges of copyright years?

In the document “How to use GNU licenses for your own software”, the FSF says: For software with several releases over multiple years, it's okay to use a range (“2008-2010”) instead of listing ...
3
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1answer
80 views

Does it make sense to have a program under the LGPL?

A little background: I have a library project which I put under the LGPL v2.1. However, I have two applications inside the project tree using the library. It would be somewhat inconvenient to make ...
2
votes
1answer
398 views

What is the licensing for ART (Android Runtime)?

Dalvik was licensed under the ASL on the premise that it was reverse engineered: Licensing and patents Main article: Oracle v. Google Dalvik is published under the terms of the Apache License ...
3
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1answer
1k views

Is it possible to make closed source code while using the following libraries?

I am not good at Licensing issues. So my question - If my program is using these libraries (only linking like -ludev, -lblkid, -lcrypto, -lssl, -fopenmp) - libudev (LGPL version 2.1 of the License, ...
5
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1answer
58 views

Does GNU Classpath exception allow me to take parts of the library, link with them and distribute the resulting executable on my terms?

GNU Classpath exception says I can link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the ...
8
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2answers
266 views

Required works to put existing GPLv3 source code on GitHub, with respect to modification dates

I was looking at the GPLv3 License. It states that when I modify the Program and distribute it, I need to meet the condition of: a) The work must carry prominent notices stating that you modified it,...
3
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1answer
142 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 ...
4
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1answer
144 views

Hosting (potentially) non-GPL plugin's

Background: In the audio processing world, most programs to compose and mix music in (collectively called DAW's from now on) are commercial and closed source. These programs can extend their ...
7
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1answer
136 views

GPL-FE (font-exception) on Apple App Store?

It seems that GPL is not compatible with the Apple App Store due to the differences regarding Apple's ability to impose further restrictions. Does this also affect fonts bundled with the app? In ...
2
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1answer
54 views

Complex mix of licenses for stand-alone installer, and the softwares it installs

I'm writing an installer for some softwares, and wish to make the installer stand-alone, i.e. everything baked into a single executable. One of the softwares that are installed has GPL 3, built from ...
1
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1answer
49 views

What license to use while using GPL/LGPL source code?

There is an application A. It uses the GPL license. There is another application B that takes all of A's code and improvises it. In its repo, both GPL and LGPL license can be found. We are building an ...
2
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1answer
213 views

Bundling GPL script with closed source script

So what I'm planning to do is to create a script which one part calls (via Python's subprocess) external open source script licensed under GPL-2. To make it easier for users I'd like to distribute ...
2
votes
1answer
317 views

Can this NVIDIA licence be used for GPL open source product?

For my GPL open source software I use LGPL-based libraries. I recently found a very useful NVIDIA SDK which I would like to use for my software. NVIDIA is using its own license, and I have difficulty ...
6
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1answer
439 views

For Software based on GPL library should I have to release software under GPL license or can I use MIT

I am currently building a generic rest framework and using Jersey and Grizzly as frameworks to build upon. Originally I planned to release (for commercial or public/private use) it under MIT license ...
12
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5answers
721 views

GPL-Licensed LaTeX template - implications for resulting work?

I'm currently writing my master thesis, and the classicthesis template we're supposed to use is licensed GPLv2+. As I understand the GPL, this makes my written thesis a derivative work, and would ...
5
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2answers
1k views

Combining GPL with non-commercial license

I've been a hobbyist programmer for a long time, and only recently have I been writing code I've thought others might benefit from. Here's my conundrum: I'm a big supporter of the GPL, and I ...
3
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1answer
1k views

Using R packages in a commercial application

When using an R package, for example in a commercial application, it seems to me that it is not sufficient to check the licenses of the package's imports, but also the licenses of the imports' imports ...
3
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1answer
78 views

Open source licences and copyrighting

My question is: where lies the border for a programmer to copyright new software when in GNU/linux basically everything is released on very restrictive licences that force you to copyleft your work? ...
3
votes
1answer
91 views

How much does code have to interact for the GPL to take effect?

The GPL says that if you use program A, you agree that if you make a program B that relies on program A, program B must be GPL (otherwise, you violate the GPL and therefore lose the right to use ...
1
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2answers
260 views

GNU GPL question: Do I need to open source my entire app?

I am using the Telegram API (licensed under GNU GPL) to integrate chat services within my own application. The developer of Telegram asks to - "Please remember to publish your code too in order to ...
25
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2answers
5k views

Do you violate the GPL if you provide source code that cannot be compiled?

In a recent question on programmers.SE†, it was asked whether a project is open source if it provides some source code but doesn't make it clear how to actually compile it. Consensus is that it'...
4
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1answer
567 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 ...
7
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2answers
2k views

What happens if I use a GPL licensed jQuery plugin without a licence on my website?

I like the jQuery Isotope plugin and I want to use it on my website. I was wondering if it was OK to use it without a licence. It's licensed under either GPLv3 as an open-source license, or there's a ...
3
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2answers
69 views

Picking a license for library

I'm planning to open-source a server-side Python library from my pet project. It strictly depends on another Python library, which is distributed under the GNU GPL v2. Am I legally correct to put my ...
5
votes
3answers
153 views

Would this scenario be considered “propagation without conveying” according to the GPLv3 terminology?

I have a fancy software "foo" that may be considered the derivative work of a GPLv3 library. "foo" is GPLv3 itself. Example 1: I install the foo binary on my company's laptop, go to a customer's ...
4
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2answers
332 views

Including resources with ambiguous license for GPL application

I'm creating a GPL v3 application. I've found some graphics on www.flaticon.com that I would like to use in the application. The application will be distributed as binary, but with the resources as-is ...
2
votes
1answer
94 views

Ask user to install external GPL dependencies when installing commercial products

Is it possible to use as optional dependency a GPL dependency in a commercial product? My idea is to ask the user when installing my product if he wants to install a GPL dependency. Is it possible to ...
8
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4answers
813 views

Does physically removing GPL code relieve combined work from GPL publication requirements?

Here's the scenario. Alice crafted a compression library and published it under GPL. Bob crafted a font processing library which uses pieces of code from Alice's library and ... let's call it overly ...
12
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3answers
2k views

Why do some GNU distributions with a Linux kernel convey GPL software online without providing source code?

I have noticed that some groups or organizations convey the GPL software without the source code. Such examples are: https://sourceforge.net/projects/serbian2014/files/Download/ as Serbian GNU/Linux ...
3
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1answer
85 views

Is deploying a program to a virtual machine not on my hardware count as “distribution”?

I am permitted to mix not open-source code with GPL code on my computer if I don't distribute it. Is deploying it to a VM on a remote server considered distribution?
1
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2answers
376 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 ...
2
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2answers
1k views

Does the Python Software Foundation License permit relicensing to the GPL?

Does the Python Software Foundation License permit relicensing to the GNU GPLv3 (or v2)?
11
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1answer
178 views

GPL version not specified, and actual license text not provided with the source

I'm working on porting a very old program (1994) that was released under the GPL. However, the only reference to that license is this text in the header of the C files: This program is free ...
9
votes
1answer
180 views

Removing Ads from Open Source projects

My most recent encounter with WebYog's SqlYog revealed that the vendor has made their Community edition open source, and available on GitHub, however the product still has obtrusive ads in it. It is ...
5
votes
2answers
535 views

Is it possible to keep GPL-licensed software internal?

Reading this question caused me to wonder: Is it even possible to keep a GPL-licensed software internal to one company? Am I correct in thinking that any employee who has access to it, would be free ...
69
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5answers
28k views

Can I use GPL libraries in a closed source project if only the output is distributed?

If I create a closed source application which uses some GPL licensed libraries but don't actually distribute the software, only its output, can I keep the software closed sourced? Specifically, I am ...
3
votes
4answers
146 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 ...
3
votes
2answers
113 views

Does modifying and using a GPL program on a single hardware makes all the project GPL?

I had a bit of a chat at work concerning an ongoing project and I wanted to ask about it to a community who knows about GPL. I’m far from being an IT specialist (and a licensing specialist also) so ...
4
votes
1answer
354 views

What do I have to include in the binary package as “corresponding source code” for GPL licensed software?

For example: If I make a python program that uses PyQt5, I have to distribute my software under GPLv3. So naturally I would include the source code of my program as "corresponding source code" ...

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