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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LGPL license for shotwell, VLC media player

Just curious to know, why are the programs shotwell and VLC media player released under LGPL? Maybe because that they are written just not for Linux, but for other proprietary operating systems too? ...
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34 views

Can I start GPLed program within my code without making my program GPLed? [duplicate]

I have a program that I intended to release as MIT[0]. But I noticed that one of dependencies is GPLed. Fortunately I only use it via a system call to make final production step of graphics. my code ...
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1answer
47 views

Distribution of code of a system that uses open source tool with GPL license

I'm sorry if my question is repeated, but I have searched and read allot about this topic and kind of confused and want to make sure at this point. I'm planning to use an open source tool that will be ...
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1answer
735 views

A question about closed-source software with GNU GSL for commercial and free-to-use cases

I plan to build a closed-source software with C++ language using GSL (GNU Scientific Library). This software is made by compiling my source codes into executable. By the way, my source codes use GSL ...
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1answer
55 views

Is the avahi-client license incompatible with its dependency on DBus?

Avahi, including the C client library, is licensed under the LGPL. On my system, (and I believe everywhere) libavahi-client.so.3 links to libdbus-1.so.3. DBus is licensed under a dual license, GPL OR ...
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1answer
113 views

Possibilities to use a GPL-v3 licensed library in a closed-source game

Licensing is absolutely not my topic and I'm currently trying to learn about it while developing my game. I'm trying to implement the espeak-ng library into my game, so I can use it to generate robot ...
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1answer
61 views

What open-source license should I use for my tool?

I have developed a tool that uses another tool to convert a file from format#1 to format#2. And currently, my tool works only if it is given the file in format#2 as input, and so, it depends on that ...
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1answer
3k views

Is it legal to multi-use a 100% GPL theme from ThemeForest?

If you go to the Google search site:https://themeforest.net/item/ This item is licensed 100% GPL, you will find a lot of GPL themes. Is it legal to use a theme which I buy once in multiple sites? (...
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1answer
1k views

Difference between GNU-GPL and BSD?

I was wondering what is the difference between these two licenses? I have looked around for GPL but in some places they say you have to post your code to public and in some places they say you don't ...
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1answer
183 views

Does violating the "four essential freedoms" of the FSF mean you are violating GPL? [closed]

I was reading over a products license information and found out that they use multiple iterations of the GPL license (GPL v2, LGPL, a few more). I was wondering if the product that is licensed ...
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1answer
62 views

License to require promotional attribution to the end user

I'm developing a tool that will be distributed as a Rust crate and NPM package over the network, and a program will be running on a public blockchain. I'll be using other Apache 2.0 licensed code. I ...
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1answer
93 views

GPL and "shadow Linux"

This is a follow up of my existing question Does GPL apply to proprietary software that is linked in through a compatibility layer, but has a new major focus (i.e. the shadow Linux). Suppose a Linux-...
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1answer
67 views

Free Pascal and LGPL

I want to modify this program and compile it using Free Pascal compiler. The above program is licensed under GNU General Public License version 3. I know little about Free Pascal, and reading the FAQ ...
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1answer
51 views

Creating a new open source License based off of the GPL? [duplicate]

Hey suppose I would like to create a new modification of the GPL 3.0 license, would I be allowed to copy the GPL, modify it, and then rename it to something else? I.e. is the GPL license itself open ...
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1answer
50 views

closed source binary in Linux image

I've got question about following situation: if i have closed source binary and device with Linux, i want to sell this device with Linux and closed binary in its filesystem. Is it legal to keep source ...
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1answer
482 views

use fabric.io crashlytics in gpl android app

fabric.io Crashlytics is a service for watching number of daily users, log of crashs and ... . Can I use fabric.io Crashlytics in GPL Android app? If the answer is yes, should I publish the API key ...
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1answer
245 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 ...
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1answer
590 views

Can I change my Qt project license?

I have non-commercial Qt license, but I need a static compilation option because as I know, my program needs many DLL files and I want to have the possibility of running my program on another machine ...
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1answer
51 views

Can I write on my website and make the code private when the source code is partially copied from an open source GNU GPL V3 project [duplicate]

I've rewritten my personal website using this https://github.com/ptrpov/ptrpov . I've made some significant changes. Like I did on my previously (built from scratch) website, I'd like to add ...
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1answer
243 views

Linux Licensing Questions

How do some real time vendors license Linux when it is already open source? I have had a hard time finding licensing models for companies/distributions like Wind River Linux and RedHawk Linux.
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1answer
401 views

Can you commercialize your own GPL product? [duplicate]

I've been wanting to make my own open-source project under the GPL. However, I was thinking of making a paid "professional" version that adds features that are closed-source. Is this possible? Edit:...
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1answer
123 views

GPL licensing a web app software

I am in the early stages of building a software with a team to design websites, kind of like WordPress. You download the system on your website, and go on from there. People can be allowed to expand ...
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1answer
128 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 ...
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1answer
41 views

Using GPL License Library separately in a Commercial Project

I am developing a WPF program (Program1) which can read/write data in my PostgreSQL Database. However, when I start to develop the Print PDF function, I found that the free PDFSharp/MigraDoc cannot ...
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1answer
61 views

Common licencing types [closed]

I'm an independent software developer and thus have little to no knowledge about licenses or general software law. Could someone list the most common licenses and what they mean in layman's therms.

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