Questions about the implementation of software licenses on software, including questions about open-source licenses. See the full description for more information about which questions are on topic.

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2
votes
1answer
237 views

How and when had the CC BY license become GNU GPL-compatible?

I believed that Creative Commons Attribution License, even being non-copyleft one, was always and still is incompatible with GNU GPL because of multiple minor issues; which, however, were gradually ...
0
votes
2answers
116 views

Is it necessary to apply to anywhere other than to add a file as LICENSE.txt for open source or free software licensing? [duplicate]

I am going to continue a game engine project I didn't engage in for a long time.I amatourly writed some core libraries using OpenGL with C++. Because I am not that into programming in general, I am ...
0
votes
1answer
27 views

Using Database licensed under Creative Commons Attribution v3

I have access to a database which data is released under Creative Commons Attribution v3.0 I understand that using this database/data requires me to give credits on information origin in different ...
0
votes
2answers
177 views

What open source library licenses can I use in closed-source?

I like to create a closed-source program and sell it. I would like to make use of various open source libraries to make it easier to write this program. So how I will choose the libraries that I ...
0
votes
1answer
71 views

Which open-source license is right to keep some advantage for me AND for the developer-community?

I know that this question has been asked a many times but there are at least that much different answers. I'd like to release a software, i developend for about a year. So i would like to keep some ...
0
votes
2answers
83 views

When are you violating a license like the GPL? [duplicate]

Specifically in the following scenarios where you're working on an open source library using an incompatible license like the MIT license. You copy & paste a method from a GPL library - ...
0
votes
2answers
142 views

Finding a Pre-Written Software License

I've been researching licenses for a few days for a software project I've been working on that I'd like to add a license to. I'm looking for a fairly restrictive software license that allows access ...
1
vote
4answers
147 views

Why are FLOSS licences applied to files instead of diffs/deltas?

In the case of open source software development, where contributions build on previous work I would find it more sensible for each copyright holder to hold copyrights on the diffs/deltas he/she ...
0
votes
1answer
110 views

Software previously licensed under GPL now APL2, can I use it in a commercial application?

A software I would like to use in a commercial project switched from GPL to APL2. The news cites: Please note that the new code that is currently developed as part of the 2.0 code base is licensed ...
1
vote
2answers
74 views

GPLv3 + commercial license on the same project? [duplicate]

I'm trying to find a solution to publish my source as open source just for personal and no-profit use, and sell licenses for commercial use. I see Packery which uses GPLv3 for non commercial, and a ...
1
vote
3answers
64 views

Is using data generated using AGPL-v3 licensed code considered distribution?

I'm considering using parts of a GNU Affero General Public License v3 (GNU AGPL v3) licensed library in a commercial context, but we obviously can't afford to release our whole code-base. We would ...
2
votes
1answer
50 views

Releasing libraries used in a commercial application as GPL [duplicate]

While I was at university I developed some PHP libraries which I intended for personal use. I used them in a few personal projects. When I joined my current job we created a commercial product which ...
2
votes
3answers
186 views

Displaying copyright notice for OSS in closed source Android app

I am considering the usage of various open source libraries in a closed source Android app. The libraries are released under various licenses (MIT, BSD modern, Apache 2.0) which allow this kind of ...
1
vote
2answers
99 views

Is a software licence required? [duplicate]

I'm a developer of open source applications and publish my applications and smaller source code snippets on my personal website. I also often find and use code by others, often from blogs or small ...
-4
votes
2answers
104 views

Intellectual property on software: how does it work? [closed]

I've developed software (web development) and before launching it I'd like to know how exactly can I keep this in my name and rights and avoid further mimics of the idea, just like in a regular ...
1
vote
2answers
235 views

Best approach to develop / distribute proprietary module

I've been brainstorming for a while regarding the best approach to distribute closed-source modules. I'd like to mention that I have found similar question(s) on SE sites but don't think this is ...
0
votes
1answer
81 views

Creative Commons ShareAlike

Some of the CC licenses define ShareAlike term: ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. ...
4
votes
1answer
250 views

Is a license header in source-files required?

Reading through the Apache Software License 2.0 appendix I am left unclear what exactly I have to do now: APPENDIX: How to apply the Apache License to your work To apply the Apache License to ...
0
votes
1answer
120 views

How to comply with LGPL 2.1 source-code request?

I have an iOS app that uses the VLCKit framework for it's video player function. Today I got an email from the creator of VLC and in the email is stated this: According to the LGPLv2.1 VLCKit and ...
4
votes
1answer
97 views

Do I need to handle licenses of immediate dependenies?

Let's assume within my project which is GPLv3 based I'm using a single library called a-lib.jar. That jar itself is licensed using Apache v2 license, so I should be fine with the GPL as long as I ...
1
vote
1answer
144 views

Using GPL’d software in a proprietary web application

We are developing website that we charge money from members to join it as membership annual cost, so, we decided to put a plan for the second stage so we are choosing now the load balancer that we ...
1
vote
1answer
133 views

Is it OK to credit (CC BY 3.0) icons in my (GPLv2) Github project with a CREDITS.txt file?

I'm in the middle of uploading a project to github. My software uses some icons which are licensed: "Creative Commons (CC BY 3.0 US)" Should I hardcode the credits in a... let's say "Help->About" ...
1
vote
1answer
218 views

Including GPLv2 code in GPLv3 code

I would like to use some code that was released under GPLv2 in my project. I released my project with the GPLv3 license. Can I do this, or do I have to downgrade to GPLv2?
2
votes
3answers
99 views

GPL covers the linguistic data in *spell dictionaries?

There are good annotated vocabulary in {a,i,my}spell dictionaries, giving the lexical class et all. I'm writing a program that needs a large vocabulary, but with a reduced scope, so I don't need all ...
3
votes
1answer
268 views

Is it OK to use the MIT license for a project that uses Qt?

I built a Qt application. Am I allowed to LICENSE it under the MIT license? Qt is a cross-platform application and UI framework for developers using C++ or QML, a CSS & JavaScript like ...
2
votes
1answer
50 views

License of library used by one library include in my project

I am developing a small project to sell and I have used several Java libraries, mostly with LGPL or Apache 2. And I have one question, for example, I am using jasypt, wich is an Apache 2 license ...
-1
votes
1answer
53 views

Licensing: CC-BY-SA to CC-BY-NC-SA

Disclaimer: I am not a lawyer, and I don't expect anyone answering this question to also be, and I will not take the answer as legal advice. Starting from a piece of software (in this case, a game ...
-2
votes
2answers
30 views

Licensing subcomponents

Say I produce system X, which contains some components (A, B and C, say) which are specific to X, but ripe for generalisation. Let's say X is licensed with a viral open source license ([AL]?GPL). If ...
4
votes
0answers
161 views

how does CC licenses (0,BY,BY-SA) affect proprietary/closed source applications?

I think this question is specific to indie developers be concerned about. Think about it as a "license clarification" or a "license practical use case". I need to know how must be my project basic ...
1
vote
1answer
67 views

Releasing Qt-based controls under University of Illinois/NCSA

Qt is a graphic framework which has a double license: commercial (statically link and modify at your wish) LGPL (you should either dynamically link against it or release your source code, any ...
1
vote
1answer
63 views

PirateBrowser Licensing

I am sorry if this question isn't appropriate here, but this made me confused. But what I read in MPL 2.0, any software derivated from a existing one with this license should keep it under such ...
5
votes
2answers
347 views

can a closed source commercial software make system(3) calls to GPL applications (not libraries)?

The closed source commercial software (CSCS), will just make system(3) calls to GPL applications. The user machine will run CSCS and it will call these GPL applications, in realtime, in the very same ...
6
votes
4answers
997 views

Is it allowed to embed an LGPL command-line tool?

I want to sell a closed-application that depends upon a certain command line tool. Am I allowed to distribute my software including this command line tool? For example, as a separate binary ...
-4
votes
1answer
149 views

Does a licence exist where forking forces the developer to resell it when developer want to redistribute? [closed]

Imagine i create a great framework. I ask a small licence fee for usage, let's say 10eur. Then I would like to allow other developers to create a fork/derived works. When they want to distribute and ...
0
votes
1answer
190 views

Can a single GitHub repository include source code released under multiple licenses?

I want to gather several sub-projects in a single GitHub repo for the convenience of the users. But I wonder if it's actually possible to have folders in a single repo each of which is covered by a ...
-3
votes
3answers
133 views

How can a community continue support for a product (*not* open source) discontinued by it's owner [closed]

A web-project (I don't want to go into details about who/what/why) has been replaced by it's company with a "version 2" that means version 1 owners have been abandoned at the end of this month (all ...
0
votes
0answers
22 views

Maven Repository Jars for commercial purpose [duplicate]

I am developing a web application on Java J2EE platform. I want to use maven repository jars like spring, hibernate, commons-*jar etc. Are these jars free for commercial purpose? I just want to use as ...
1
vote
1answer
44 views

The term “aggregate” in GPL3

What does this part of GPL3 mean in simpler or more readable terms? If I decide to enhance a GPL3 Program in which some snippets of the codes I could add are generic (may it be on a separate file or ...
3
votes
1answer
79 views

Software License change after version change

I used a open source software to build an application about few months back. The license on the software states, "XXXYYY is Free Software, licensed under the MIT license - so it's free to use for all ...
2
votes
2answers
354 views

Paid software includes MIT licensed library, does that put my app under MIT too?

If I include MIT licensed source code in my program, am I obliged to provide my whole software under MIT? The above copyright notice and this permission notice shall be included in all copies or ...
0
votes
1answer
97 views

Copyrights for Open Source projects [duplicate]

Say I'm developing a piece of Open Source software (BSD-Like permissive license) and I write the initial release entirely on my own. After the initial release however I would like numerous other ...
1
vote
2answers
85 views

GPL license for software and online service comparison

I have two questions that are linked : 1) Can someone sell a fork of an open-source software under GPL without distributing the source? Example: Can I modify a little bit GIMP, repackage it under ...
3
votes
1answer
112 views

How to license open source code you have heavily modified under the BSD license

I've created a heavily modified and more reusable version of this Qt Quick Scene Graph example. Every source file includes a BSD license. The following lines basically say I have to include the entire ...
1
vote
1answer
77 views

Open-source licenses and modifications

I see in the GPL license FAQ : Does the GPL require that source code of modified versions be posted to the public? (#GPLRequireSourcePostedPublic) The GPL does not require you to release ...
1
vote
2answers
77 views

Reuse a small method from Apache Ant: How to do that correctly

I adapted some code from the Apache Ant project in my work. The part I used is really small: ~70 lines, ~2000 characters. Adding dependency to ant to use that a single method seemed like an overkill. ...
9
votes
2answers
832 views

How can a company sell licenses for GPLed software without violating rights of others [duplicate]

There are tons of questions like "Can I use GPLed code X in my commercial project?" but I found nothing which answers my question. I take ExtJS as an example, but actually you can any commercial / ...
2
votes
1answer
78 views

What are my rights if software didn't come with a license? [duplicate]

I have downloaded some software which I'm using. I'd like to include it in my project but I don't know if I'm allowed to do so due to the software not having a license. What are my rights? If the ...
1
vote
1answer
384 views

PrePros license MIT but shareware at the same time?

PrePros a compiler for the LESS/CSS languages is licensed under MIT But from version 5.0 it being presented as 'Shareware' which requires payment and activation, although it does not impose any ...
1
vote
1answer
118 views

Is there any license which prohibits usage for hiring purposes?

I develop code review tool which analyzes the code and gives it passed grade and output details of code review. I want to prohibit to use this software for recruiting/hiring purposes. I don't want ...
1
vote
2answers
246 views

It is safe to accept money for open source software that you've written? [closed]

I've written an open source library for iOS, and I've received an email from an overseas developer who wants to pay me for my work so that he doesn't have to attribute in his app. The code is ...