Questions tagged [linked-libraries]

For questions concerning the use of linked libraries such as DLLs and linked JARs.

Filter by
Sorted by
Tagged with
2 votes
1 answer
120 views

Can I put a license on my code if it uses external libraries?

I'm currently developing a software in Python which is importing functions of libraries. So I was asking myself: do the licenses of the libraries I use in my software apply to my code? And if not, can ...
user avatar
0 votes
1 answer
41 views

Does licensing a parent software under GPL v3.0 satisfy the licensing requirements of GPLv3/LGPL libraries used?

I have written two Java desktop programs that I would like to license under GPLv3 and distribute as executable JARs on Gitlab. The programs use Maven for dependencies and pull in GPLv3 and LGPL ...
user avatar
1 vote
1 answer
66 views

Can I use "unless otherwise noted this project is released under XXX"?

I have a project which uses unmodified libraries with MIT-like licenses. I don't include source code of these libraries in my project tree, just include some its configuration files which have full ...
user avatar
6 votes
1 answer
356 views

Is it possible to use a LGPLv3 plug-in in a GPLv2 program?

From the license point of view: Is it possible to use a plugin written under "LGPLv3+" in a program protected by "GPLv2"? The plugin is built as a ".so" library and at ...
user avatar
  • 163
0 votes
1 answer
253 views

No way to write a commercial product in R?

I want to write a small program in the R language, connecting to DB (hence using packages), that I'd like to sell. As it will connect to DB, on internal networks, that can't be hosted. I tried to ...
user avatar
  • 23
3 votes
0 answers
99 views

Linking to Apache v.2.0 software in LGPL v.2.1 project [duplicate]

I am working on an open source project for an academic competition. Our customer requires us to use for our product the LGPL v.2.1. We have to use QR codes in part of our application, and we found ...
user avatar
4 votes
1 answer
299 views

Distributing LGPL library (OpenAL) as part of the MIT licensed game engine

Background: I'm writing a game engine (a set of libraries actually) that simplifies game development with C# language (OK it is yet another game engine :). My plan is to make it as free as possible. ...
user avatar
2 votes
1 answer
229 views

Could the GPL "infect" my Code if the libraries I used violated the GPL?

Let's assume I use in my closed source a library A which is by the Author claimed as a non GPL license (e.g. MIT, LGPL or even a paid license). Now somebody finds out, that one of the used library in ...
user avatar
  • 141
5 votes
1 answer
1k views

Will there be any restrictions if I use a MIT licensed module which is built on a GPL library in my commercial software?

I want to use a Python module (https://github.com/Belval/pdf2image) in my commercial software. This module is licensed under the MIT license whereas the library (Poppler) it is built on is licensed ...
user avatar
4 votes
1 answer
227 views

Can a GPL-licensed library be used in private development builds of a proprietary application?

I'm considering using this GPL-3.0-licensed library as a development aid in a game. Development builds that include this library (and other unrelated tools) would be used by myself and any parties ...
user avatar
  • 201
1 vote
1 answer
603 views

Do I need to display copyright information of third-party libraries?

My software project is using several third party libraries which have different licenses (LGPL, MIT, BSD). I distribute the dlls of those libraries, and I understand that I need to give license ...
user avatar
  • 121
4 votes
1 answer
3k views

Can I use (statically or dynamically linked) mingw-w64 runtime libraries for commercial purposes?

I'm planning to use mingw-w64 for commercial software and I'm looking for info about it's licensing. I was looking through licenses included in package and some discussions on forums and mailing lists ...
user avatar
  • 41
2 votes
1 answer
288 views

Does interacting with a (L)GPL licensed library through PHP7.4 FFI count as a derived work?

Problem description I recently wrote a PHP(7.3) wrapper for accessing some git functionality (I use git to create incremental backups). Another wrapper I wrote is for gpg (to encrypt my backups). ...
user avatar
2 votes
1 answer
82 views

Using GPL modified system software in commercial projects

I have a commercial project which connects to a database (e.g. PostgreSQL) all licences are agreed at this moment. What should I do if I alter the database server with GPL (version 3 to be concrete) ...
user avatar
  • 123
2 votes
1 answer
319 views

Can I use the EPL-licensed library (Paho) for a proprietary project and NOT disclose the source code of the project?

Can I use the Eclipse Paho library (licensed under EPL) for a proprietary project and NOT disclose the whole source code of that project? I'm not going to make any changes to Paho code, I just want ...
user avatar
  • 151
3 votes
1 answer
807 views

Can I use proprietary library in a GPL-Compatible library loaded on a gpl Program?

I am asking mainly to be sure. To describe it better, I want to use some external functionality that is available through a proprietary library. Since the library IS NOT compatible with GPL Programs, ...
user avatar
  • 33
1 vote
1 answer
112 views

Publishing an open source project linked to commercial closed API

We are thinking about to publish a module of a commercial closed software as open source under e.g. MIT or BSD. The published open source module would have still some dependencies to the commercial ...
user avatar
  • 13
4 votes
1 answer
315 views

Are the Artistic Licence 1.0 and the zlib Licence compatible with one another for distributing sources?

The open-source, community-maintained game Simutrans uses the Artistic Licence 1.0 (AL). I know many people regard this as a poor choice, but the core of the game was written as someone's spare time ...
user avatar
  • 143
5 votes
1 answer
846 views

Does AGPL introduce a new type of linking?

I understand that using AGPL (specifically AGPL-3-or-later) means: all the linking rules from GPL-3-or-later still apply additionally, a user accessing the software over a network should have access ...
user avatar
  • 1,675
5 votes
1 answer
498 views

In the .NET AssemblyInfo.cs, where to put the license info?

In .NET, assemblies have their AssemblyInfo.cs file where one can put general descriptive info about the assembly. But, where to explicitly put an (open source) license? I will have a copyright, which ...
user avatar
  • 151
2 votes
0 answers
376 views

Proper place to include the license of a dependency

I'm developing a GPLv3 project, and i need to use both the feather's icon set, licensed with MIT license, and the PyQt5 library with GPL. I don't need to rewrite or extend any content of the these ...
user avatar
  • 121
3 votes
2 answers
574 views

If some software states it is BSD-licensed, how can it be distributing itself with GPL/LGPL components?

For a specific example relating to my question, I offer VisIt. Per the licensing information for VisIt, it is stated that it is BSD-licensed. But, looking over the libraries used in VisIt, it can be ...
user avatar
11 votes
4 answers
4k views

Calling GPL'd programs from a shell script

I have a program written in a shell language that consists of several shell script files. Some of these files execute external commands that have been licensed under GPL. Do I have to release my ...
user avatar
  • 213
19 votes
1 answer
8k views

Using GPL library with MIT licensed code

Let's say I created a project containing hundreds of source files under the MIT License (most of which I wrote myself for this project). Now I want to add a GPL library to the project, that will be ...
user avatar
10 votes
2 answers
1k views

Is use of CC BY-NC-ND 3.0 library in open source project a derivative work?

There is an open source library which I would like to add to my own software repo. However, it is licensed under CC BY-NC-ND 3.0 which does not allow derivative works. I do not modify the library's ...
user avatar
1 vote
1 answer
127 views

Collective work using a GPL library

Assume I have a python script that runs a GPL library binary through command line (through os.system('GPL call') and then analyze the output (which comes from the terminal). Is that a collaborative ...
user avatar
  • 151
10 votes
3 answers
288 views

What happens if I stop using a GPL library?

If I understand it correctly, when I develop a program that depends on a GPL library, it becomes a derivative work of the library and the GPL license also aplies to it. But what happens if I develop a ...
user avatar
  • 203
12 votes
4 answers
6k views

Linking from LGPL 2.1 software to Apache 2.0 library

The FSF claims that GPL v2 is incompatible with Apache 2.0 and that linking to a library generally creates a derivative work of this library. However, the linking exception of the LGPL allows ...
user avatar
  • 5,257
0 votes
2 answers
1k views

copyleft licenses allowing dynamic linking with open-source program only

I am writing a library, currently under GPLv3 because I do not want my lib to be linked with a non open-source software. A friend of mine is writing a program under the MIT X11 License and needs my ...
user avatar
7 votes
1 answer
2k views

LGPL and static linking when third-party tools are required - providing an alternate version that can accept a replacement LGPL library

I've been through a lot of the LGPL questions here but haven't found this specific question. This is probably the closest to my situation: Dynamic linking LGPL library and licensing in Windows Store ...
user avatar
  • 171
1 vote
1 answer
351 views

GPL and 3-clause BSD together

I want to make DLLs of my code (not the source) publicly available for any type of usage, but the code depends on a GPL-licensed DLL and a 3-clause BSD licensed DLL. What license should I use? And is ...
user avatar
3 votes
1 answer
755 views

LGPL static linking

I know there are already many other questions asked about LGPL requirements, but none of those did match my case I want to distribute a free application which uses a LGPL-licensed library (Qt) ...
user avatar
3 votes
0 answers
209 views

Usage of a part of a EPL library in LGPL or Apache 2 project

As I understand it, I am allowed to link a eclipse licensed jar to an LGPL or Apache 2 licensed open source project, without to change the projects license. Correct me if I am wrong. The question is,...
user avatar
  • 139
5 votes
1 answer
477 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 ...
user avatar
4 votes
2 answers
112 views

Linking vs API vs data

I know that GPL requires linking application to be licensed under GPL. Some database lisense covers data usage. I'm sure there's something for API too. But from the comments here on OSSE I also know ...
user avatar
3 votes
1 answer
1k views

Can Public Domain use GPL licensed library/program?

A similar question already asked here (https://softwareengineering.stackexchange.com/questions/159023/can-cc0-code-use-a-gpl-library) but my question is a little bit different, perhaps more accurately....
user avatar
  • 133
5 votes
1 answer
136 views

"Primitive" GPL:ed OS and proprietary programs and address spaces

I have read about FSF plugin policy If modules are designed to run linked together in a shared address space, that almost surely means combining them into one program. (Emphasis mine). Now there ...
user avatar
3 votes
1 answer
829 views

Licencing my project while considering dependencies

I'm considering licencing my projects under the Unlicence licence, but I'm not sure if this is allowed when I have dependencies. For example if my project depends on a GPL or Apache or BSD project, ...
user avatar
  • 131
6 votes
1 answer
600 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 ...
user avatar
  • 163
2 votes
1 answer
119 views

Do I need to share OSS libraries source code when I only use them in binary?

I'm working on a project where BSD, Apache v2 and MPL1.1 libraries were used. Basically propietary code will link to these libraries to run the Program. Libraries were only used in binary form, though....
user avatar
2 votes
1 answer
744 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 ...
user avatar
4 votes
2 answers
85 views

Want to release old shareware application as open source but uses commercial libs. Options?

I have some Windows shareware applications built with Delphi 7 that have not been updated for almost 10 years. I was thinking to release the source code as open source on a site like sourceforge. ...
user avatar
  • 141
102 votes
5 answers
52k 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 ...
user avatar
  • 1,125
9 votes
2 answers
3k 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. ...
user avatar
  • 93
10 votes
1 answer
1k views

Why is the definition of "System Libraries" in GPLv3 phrased the way it is?

I'm curious about the definition of "System Libraries" The “System Libraries” of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of ...
user avatar
6 votes
1 answer
282 views

Can I create a GPL licensed server and use it in a commercial product?

I have an commercial embedded device which uses linux as OS and I would like to add remote support to my commercial application on the device. I would like to use a dynamically linked library with ...
user avatar
14 votes
2 answers
3k 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 ...
user avatar
4 votes
1 answer
1k views

Software license with external libraries

Scenario I plan to share the source code of a larger software that depends on external libraries. The directory structure of the project is as follows src/ ... my source code ext/ ... ...
user avatar
6 votes
3 answers
825 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 ...
user avatar
  • 161
12 votes
3 answers
1k views

Am I in danger if a project component is relicensed?

I am currently managing a project, which includes a library that is licensed under the MIT license. My current project is licensed under the Apache 2.0 license. The maintainers of the library that I ...
user avatar
  • 6,229