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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4
votes
1answer
579 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
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3answers
161 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
votes
2answers
345 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
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1answer
95 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
837 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
86 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?
2
votes
3answers
404 views

Pacifist copyleft-like partially-open-source license [closed]

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
181 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
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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
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2answers
556 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 ...
70
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5answers
30k 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
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4answers
147 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
116 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
360 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" ...
6
votes
1answer
146 views

What part of Android will now have to be under the GPL?

Google said that “As an open-source platform, Android is built upon the collaboration of the open-source community,” a Google spokesperson told VentureBeat. “In our upcoming release of Android, we ...
17
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1answer
2k views

GPL V3 with OpenSSL Exception

I've decided to license some code I have yet to release under the GPL v3. However, OpenSSL is used quite a bit in the software and I know that the two licenses are explicitly cited as being ...
8
votes
1answer
959 views

Using the (L)GPL as an open-source hardware license?

I use the GPLv3 for my applications and the LGPLv3 for my libraries. In a similar fashion I'd like to use them for my open-source hardware projects (GPL for schematic and PCBs, LGPL for schematic ...
7
votes
2answers
2k views

Can I use a proprietary library in my GPL'd program?

The case of proprietary programs linking to GPL'd libraries has been discussed thoroughly. However the inverse case - a GPL'd program is linking to a proprietary library - is rarely mentioned. ...
12
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2answers
879 views

Is Stack Exchange's CC-BY-SA v3.0 content compatible with the GPL?

Currently, all user submitted content is licensed under "cc by-sa 3.0 with attribution required". This shows up at the bottom of each page: user contributions licensed under cc by-sa 3.0 with ...
7
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2answers
1k views

Using GPL or LGPL licensed framework for web application

I am developing a web application which streams videos. For the frontend I intend to use the richfaces framework for jsf. That framework is licensed under the LGPL v2. Does that mean that I have to ...
7
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2answers
421 views

Using GPL-ed library from code with more permissive license (MPL-2)

I'm writing a library and a tool on top of it, and I would like to release both under MPL-2. However, the library has an optional dependency, another library which is released under GPL (not LGPL). I ...
6
votes
2answers
243 views

Can I change the license of a GPL derived work to be more restrictive regarding version upgrades?

Specifically, the GPLv2. The creator of a work can allow people to upgrade to a higher GPL version: (emphasis mine) This program is free software; you can redistribute it and/or modify it under ...
2
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0answers
36 views

How is the LGPL different from the GPL with a class path exception? [duplicate]

As far as I understand, the GPL is a license with an incredibly strong copyleft trait. That is, anything that even links to it, let alone modify it, needs to be released under the GPL. Due to this '...
11
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2answers
2k views

Can I license Python project under 3-clause BSD while it has GPL-based dependencies

I'm working on an open source Python project and we have plans to use GPLv2-licensed library python3-xlib, but we will not distribute it with our library. So user can install it by pip install our-lib ...
3
votes
1answer
110 views

Is a ROM image an “executable file” for GPL purposes?

I am planning to include a program covered by the GNU General Public License and a GPL-incompatible program in a collective work designed for a machine that executes programs from a cartridge ...
11
votes
1answer
619 views

Are there any GPL like licenses for Apple App Store?

GPL software is not allowed onto the Apple App Store. The FSF shows how the GPL2 is not compatible with the App Store terms of service. Along the same lines, we'll be talking about GPLv2 ...
-2
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1answer
214 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 ...
12
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4answers
5k views

Are CDDL and GPL really incompatible?

Wikipedia seems to suggest that CDDL and GPL are incompatible, yet no one knows for sure why or how. Why and how are the CDDL and GPL are incompatible?
8
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1answer
263 views

Can plugins for non-gpl open source software use GPL libraries?

I want to write a plugin for an open-source software which is not GPL, but has a GPL-compatible license (MIT/BSD). I would like the plugin to use a GPL library. Can I do this? My rationale: Since ...
9
votes
2answers
1k views

So the GPL doesn't restrict the creator of the software in any way?

In another thread I started (Redhat buys Ansible), I am trying to figure out the economic value of a company transaction with respect to GPL'ed software. A few of the answers suggest that the owners ...
10
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4answers
777 views

Red Hat acquires Ansible - why?

In October 2015, Red Hat acquired Ansible, the developer of the famous configuration management software Ansible, apparently for a price of about $100M. Ansible, the software, AFAIK is licensed fully ...
4
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3answers
1k views

How can the Linux kernel's main.c file say that one of its copyrights is “all rights reserved” when it's GPL?

Just noticed this in the linux's kernel code main.c: * Copyright (C) 1991, 1992 Linus Torvalds * Copyright 2007 rPath, Inc. - All Rights Reserved * Copyright 2009 Intel Corporation; author H....
4
votes
3answers
520 views

Usage of GPL program as optional external tool

My software is designed to use third-party external tools if the user wishes to do so. Some users would like to use GPL-covered binaries as external tools (i.e. they tell my software "use this dll to ...
13
votes
3answers
560 views

Does using GNU Unifont in a game make the game GPL?

GNU Unifont is a fontface licensed under the GNU GPLv2 or later with this exception: The license for the compiled fonts is covered by the above GPL terms with the GNU font embedding exception, as ...
10
votes
2answers
534 views

Can I use GPL v3 for source code and CC BY-SA v3 for comments?

I have some source code for which I am the copyright holder. I want to release it under the GPL, but when it was closed source, I copied a bunch of a stuff from Wikipedia for a couple of classes and ...
4
votes
2answers
203 views

AGPL-like license for datasets

Is anyone aware of (work towards) a license with similar freedom-preserving restrictions as the AGPL, which can be applied to datasets? Some background: The GPL puts restrictions on the legally ...
4
votes
6answers
827 views

Why don't BSD developers use the SSLeay addendum if they hate GPL?

It's not uncommon to see BSD developers upset that someone takes their project, does a few modifications, and then releases the resulting work under GPL, such that the resulting improvements can no ...
6
votes
1answer
147 views

Concise GPL requirements summary list

I find the current version of the GPL to be relatively short and easy to read. However, some people seem to see a wall of text and cannot get through it. Thus we have many questions asked here that ...
12
votes
1answer
517 views

Is it possible to release a project under the GPL if it contains MIT-licensed libraries?

Specifically the Symfony PHP framework, which is MIT licensed. I've read that the two are compatible, but I want to make sure that a system I develop can be released complete under the GPL.
9
votes
2answers
734 views

Does a reseller of a GPL Licenced Software have to provide source?

I released a project under GPLv2 license on GitHub. But this project is not distributed as binary by itself. It is only available in a packaged offer along other components. As original licence owner ...
8
votes
3answers
452 views

Can I use CodeProject code in a GPL project?

I have an open-source project that I originally wanted to license under MIT, but since I'm using a GPLv3 component that I can't quite get rid of (namely, the .g4 ANTLR grammar file that I'm using to ...
53
votes
7answers
4k views

Is requiring a license a violation of the GPL? Can I get around it?

At work, we use a version of GCC provided by a vendor of a proprietary OS. The vendor has modified gcc so that it will only run if it successfully acquires one of a limited number of licenses we've ...
22
votes
7answers
4k views

Are pirated GPL-derived “premium themes” legal?

A fellow Drupal developer is suggesting that we use themes from a collection of "Premium" paid Drupal themes downloaded from a torrent site on a shared project. It appears that most or all of these ...
6
votes
1answer
166 views

Which license should I use when my project uses plugins under various licenses?

I am confused about choosing a license for my project. I have read some resources like Open Source Initiative and Choosealicense.com, though. My project is a mobile application for Android. Now, it's ...
7
votes
2answers
788 views

GPLv3: Re-Release app under different branding

I have build an open source audiobook player which is licensed under gpl v3. Yesterday someone sent me a mail with the topic 'Violation of source code license' including a link to an app that seems ...
5
votes
1answer
1k views

Can I redistribute libstdc++ with proprietary software?

So, libstdc++ has the runtime exception that permits even proprietary software to use libstdc++. But, hypothetically, can I actually distribute a non-modified binary of libstdc++ along with a binary ...

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