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Questions tagged [closed-source]

For questions about closed-source software and how it relates to open source.

2
votes
2answers
51 views

Can a copyleft, GPLv3 project be closed by its copyright holder?

Let's say a private company released a popular software product under a copyleft (GPLv3) license. It's business model was offering consulting services and premium features for a fee, which in turn ...
2
votes
1answer
27 views

Effect of 'download separately' on GPL linking

Suppose I have Java jar-files which I provide to my customers under a commercial closed-source license. But my jar-files depend on a few jar-files released under the GPLv2 (without any special GNU ...
2
votes
1answer
71 views

Using Qt Designer to create UI design for closed source application

Am I allowed to create a closed-source application using the LGPL licensing scheme for Qt if I use Qt Designer to generate its user interface? I originally thought this was possible until I saw this ...
2
votes
3answers
350 views

Finding open source in closed-source code?

Sorry for the title, I don't master the subject enough to find a clear one. I see that free licenses come with a "same license" and "disclose source" mentions, like stated here. For instance, I have ...
6
votes
2answers
551 views

Can I dynamically call a LGPL/GPL software in my closed-source application?

This question was originally posted by marcgg on Stack Overflow (second link might be visible to 10k+ only), but was removed there due to being off-topic. It has been preserved here in light of this ...
4
votes
1answer
40 views

What does it mean for a closed source project to have a permissive licence (CC BY-NC)?

Earlier today I was installing a small free program hosted on GitHub. The End-User License Agreement shown when installing had a few things, but what stood out was: [...] is licensed under a ...
-1
votes
1answer
126 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 ...
2
votes
2answers
230 views

IPC between open-source and closed-source applications

We have two applications developed by two teams. One is open-source under GPL, another closed-source without any possibility to open the code. Also there's a requirement to implement some kind of API ...
1
vote
1answer
41 views

Redistributing 7-Zip Binaries with LGPL & BSD 3-clause License

We want to use 7Zip to extract the contents of the ISO file in our paid product. There is no other API free library available as of now that can unzip ISO files on all Windows platforms that we want ...
-2
votes
2answers
502 views

Bypass LGPL license using wrapper library

I wanted to use a library which is licensed under LGPL (free, only for open source projects). I wanted to use that in a commercial project. Is that possible that I can develop an open source wrapper ...
4
votes
1answer
202 views

Using dynamically linked library with BSD 3-clause License

If we are loading a closed source - dll dynamically in the source code which comes under three clause BSD license then is it mandatory to change license of my closed source dll to three clause BSD ...
3
votes
1answer
70 views

Can a Proprietary Application Exchange Data with a GPL'd Program?

I am considering extending a proprietary application so it communicates with an open source program. This open source program is very similar to Matlab. The user can input commands to execute ...
3
votes
1answer
58 views

Subclassing, Unity, and the LGPL

I want to release a package on the Unity Asset Store. Based on this answer, it looks like the best option for my situation would be LGPLv3. However, after doing plenty of research, I've stumbled ...
0
votes
1answer
55 views

Can you change GPLv2 licensed software, but keep your new source closed?

If I were to make deep modifications to the Linux kernel, virtually make a 'new' kernel in a way, for my project, which is building my own operating system, (yes, I know, a lot of work, but hey, I'm ...
1
vote
0answers
91 views

libquadmath in binary code

I'm developing a small closed source library in C++ for a small company using gcc. For the numerics part I need 128bit floating point arithmetics. This leads gcc to pull in libquadmath. As far as I ...
2
votes
1answer
98 views

If I share code from my personal project with my employer, who owns it?

I have code from a closed-source personal project of which I am the sole author. At work, I have come across situations where the code is useful. I want to take a significant amount of code from my ...
0
votes
1answer
539 views

Can I use the Qt Installer Framework in a commercial product?

The Qt Installer Framework (QTIFW) is part of the Qt Framework which is available under the LGPL3. This page lists the components that are available under each license. Unfortunately it doesn't list ...
12
votes
2answers
243 views

Are open source projects growing faster relative to closed source ones?

Are open source projects growing faster (in terms of the number of users and developers) relative to closed source ones? Are there any metrics measuring this?
2
votes
1answer
514 views

Apache License 2.0-licensed code included in commercial closed source software

I spent an hour looking for an answer to this question, although I would think a quite common situation, I did not get a totally clear answer to my specific case: So I am selling a (P)roduct which is ...
7
votes
1answer
5k views

Use of BSD-3 Clause license and python software license for proprietary use

I am making a software in python programming language which uses libraries licensed under BSD-3 clause. Is it necessary for me to show my source code to users? Also can I restrict the distribution of ...
2
votes
1answer
981 views

Can I use angular-material in any commercial project ? Is there any cost for that?

I have using angular material for quite few days. Now I am planning to develop a commercial software using angular material (https://material.angularjs.org/). While going through the license section ...
3
votes
2answers
244 views

Can I distribute GPL software built by a custom compiler? [duplicate]

The license (I pick GPLv3 as an example) says: The “Corresponding Source” for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the ...
8
votes
1answer
2k views

Is it legal to Bundle OpenJDK + HotSpot with a closed source application?

As per my understanding, OpenJDK itself is licensed under GNU General Public License, version 2, with the Classpath Exception which should be no issue for bundling with closed source application. ...
6
votes
1answer
406 views

BSD-3 Closed Source Attribution

I'm having some confusion with the BSD-3 license language. I am going to close source a bsd-3 project and make modifications to it. I will not be redistributing the code. It will be used as a SaaS. ...
5
votes
1answer
655 views

Legal issues about embedded Linux

I am trying to modernize a current microcontroller solution with a new one based on embedded Linux (Debian), running on Allwinner A10 chips. I plan to make a Linux app doing all user-interface stuff, ...
3
votes
1answer
1k views

Can I use a Apache v2 licensed driver for a commercial project without revealing sources of the project?

I am building a project that will be commercialised. One of the library I use is licensed under Apache v2. To my understanding, if I modify the library, I need to give the source of the library with ...
2
votes
1answer
30 views

Incorporating closed-source derivative into GPL code

I have a closed-source project. I am the copyright holder. Can I incorporate parts from my closed-source project into an open-source project without running into legal issues commercially using my ...
3
votes
2answers
164 views

Can I open source a closed source project by transcoding/transcompiling its source-code, so it's completely different?

How far I can go in order to open source the project which is based on closed/commercial project where the whole source code (assuming the access is there) has been converted into different state or ...
2
votes
1answer
311 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 ...
2
votes
1answer
73 views

Can open and closed source versions of software exist in parallel and can code be ported either way?

Say a vendor has both a community version of their software and a more proprietary one. How can this be done in licensing terms? Can code be ported either way? What are the appropriate practises if ...
2
votes
1answer
144 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 ...
9
votes
2answers
985 views

Own LGPL code in proprietorial project

I've written a library that I use in closed-source project. After a short discuss with my boss we have decided that this library can be useful for many others and we made this library open source ...
2
votes
1answer
235 views

Can I use a library under the Cecill-B licence in my commercial closed-source app?

I'm working on a commercial closed-source app and I need to use a library under the Cecill-B licence. I read the licence terms here and it desn't say it is mandatory to distribute the source code of ...
10
votes
2answers
336 views

Is there any recourse when an “Open Source” project has a closed-source core?

I have come across a Java project licensed under Apache 2.0, but there's a fair bit of behavior locked away in an internal package that isn't checked into the project's repository (though the compiled ...
16
votes
2answers
155 views

What to do when proprietary code is found in your open source project?

We have an open source project and suspect one contributor has submitted code that is not their own and is under a closed source copyright. We know we have to remove the code. Also I assume anyone ...
2
votes
1answer
307 views

How did memtest86 transition from GPL to closed-source?

Memtest86, a popular software for RAM diagnostics, was initially developed as open source (GPLv2). Version 3 was forked into a separate project, Memtest86+, also distributed under GPL terms. Source ...
9
votes
2answers
175 views

On what grounds can companies bring open source projects into closed source?

There are applications that are widely used out there (just think of PHP, MySQL, etc...). What would happen if the organisations behind them pull this software back into closed source? On what ...
12
votes
1answer
376 views

What are the main steps to convert a currently closed source project into an open source one?

Given the case of a closed source project that has been developed for some time: What are the main things that should be done in order to ease its transition to a open source development? What I've ...