Questions tagged [license-compatibility]

License compatibility is the comparison of two or more licenses to determine if certain usages and actions can be made. Use this tag if the question would like to determine the compatibility of licenses, or their individual clauses.

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Can I publish my SpamAssassin plugin under MIT licence on Github?

I would like to publish my custom SpamAssassin plugin under the MIT licence on GitHub but I am not sure if it is possible. SpamAssassin is licensed under the Apache Licence 2.0 and vast majority of ...
17 votes
1 answer
14k views

Pros and Cons of using MPL-2.0 license?

I want to license my project (hosted on GitHub) under MPL-2.0, which looks like a reasonable choice. But since I'm not a lawyer, it's hard to estimate long-term benefits and consequences of this ...
0 votes
1 answer
39 views

Am I allowed to use QtCreator while working for a company, if I'm using LGPL?

On Qt Modules and Tools for Designers and Developers if I choose LGPL then under Development Tools I see QtCreator is disabled. And LGPL v3: With LGPLv3 license option you can use the essential ...
-2 votes
0 answers
15 views

Can I use Qt plugin mechanism under LGPL? [duplicate]

https://doc.qt.io/qt-5/plugins-howto.html So can I use Qt plugin mechanism under LGPL?
1 vote
0 answers
12 views

Qt Installer Framework to distribute closed source project [duplicate]

I work for a company where I'm developing an application based on a number of Qt components. We want o keep application source code closed and use Qt for free, I understand that means use Qt under ...
0 votes
0 answers
14 views

What's the license for a Qt based project? [duplicate]

https://www.qt.io/product/features I work for a company where I'm developing a project based on a number of Qt components. Not using Qt commercial license, after reading here and there about Qt ...
0 votes
0 answers
10 views

Can I install Qt using online installer, while under LGPL? [duplicate]

https://www.qt.io/product/features I'm working for a company where I'm developing an application based on a number of Qt components, keeping application source code closed is important. So I'm trying ...
3 votes
1 answer
704 views

Can Qt be used in company project?

I work for a company in which I'm developing a Qt application. So when I install Qt using the online installer it asks me to mark a checkbox saying I am an individual person not using Qt for any ...
5 votes
2 answers
133 views

What is the appropriate license that I should pick for my software?

We are making use of the following tools in our software, and not modified any of these tools. Tools 1-3 are used directly in my software. Tool 4 is used for reference, but included as part of our ...
22 votes
3 answers
7k views

Can I link a Apache 2.0 library into software under GPLv2?

The Apache 2.0 License has a built-in linking exception: For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to ...
0 votes
1 answer
54 views

How can i use pandasgui commercially if the pyqt library used is not free for commercial use?

pandasgui allows commercial use under the MIT license but I noticed the library used includes PYQT5 which is under the GPL v3 licence how is that possible ?
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 ...
2 votes
2 answers
150 views

Can I use Apache 2.0 licensed project inside my BSD 3-clause licensed project?

I am working on a (GitHub) project that I want to open-source with BSD 3-clause license and I am using some code parts and files from Apache 2.0 licensed projects. So I have three questions: Is this ...
2 votes
1 answer
110 views

License for Windows Forms Application in C++/CLI and MySQL

I have built an application using Windows Forms Desktop Application in C++/CLI, I am also using NuGet Package for MySQL.data as well as I am using MySQL code for the application. I need to add a ...
9 votes
2 answers
2k views

How can I judge the "strength" of a licence?

A quote from the FOSSA blog, How to Apply a License to Your Open Source Software Project: In a nutshell, if your dependencies are distributed under open source licenses different than the one you are ...
43 votes
5 answers
8k views

Can there be a copyright on negative code?

This is a hypothetical question, but I am curious. Feel free to ignore it, when it seems too theoretical for you. Some people may know the situation that you implement a feature and in the end you ...
-2 votes
1 answer
72 views

Is this license compatible with LGPL? [duplicate]

https://github.com/asianirish/common-potato/blob/master/LICENSE.txt The text of the license: You can use this code freely as long as you completely agree with the text of this license and include this ...
1 vote
1 answer
52 views

Usage and compatibility of AGPL in the context of permissive licensed dependencies

I figured it's time to add a license to a project I've been working on for some time. I'm interested in a copy-left license. The project is a web application that can be built and self-hosted on a &...
1 vote
1 answer
59 views

Copy license terms from other product?

This might not be a very "open source" question, but I thought I might find in this forum the right people for the question. For a mortal human being creating a PDF with the license terms ...
3 votes
0 answers
80 views

Are you required to license code under GPL if you're using TypeScript types from a GPL library?

I'm currently using a library that was licensed under the GNU General Public License (particularly GPL v3.0). This library consists mostly of types for software that is also under the GPL (but not ...
2 votes
1 answer
109 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 ...
2 votes
0 answers
45 views

Using code licensed under an MIT license with code licensed under the GPL

Say I have a repository that uses the GPL and I want to include code from a repository under the MIT license. I found here that MIT and GPL licensed code can be freely combined; however, I am unsure ...
1 vote
1 answer
63 views

If I'm using a MIT library in my project, can I license my project under GPLv3 license?

If I'm using a MIT library in my project, can I license my project under GPLv3 license? And which libraries Im allow to use if I want to license my project under GPL v3?
2 votes
1 answer
106 views

Is it legal to create an open source hardware based on an open source driver but closed source software?

Robert Bosch Engineering and Business Solutions® has published an open source driver for their ES58X products. Based on this published code, I want to create an open-source hardware which is ...
1 vote
0 answers
67 views

Can i use Apache-2.0 in a project licensed as MIT?

This link tells me not to use MIT under my license when redistributing the Apache 2.0 source code. Then, if Apache 2.0 or GPL source code is not included, only when specified in the header file and ...
4 votes
2 answers
431 views

Propietary licensing of open source code

I have written a program that uses several open source components. First off, it's written in python. Second, I use the modules subprocess, argparse, os and datetime. Since my work asked me to find a ...
0 votes
2 answers
68 views

Can i put my opensource project under MIT License if i used zlib library?

I'm currently writing a library that encrypts sqlite database(It's hard to install sqlcipher on windows). Can I choose MIT even if I use pysqlite3 that is licensed under zlib?
1 vote
3 answers
126 views

Can any project under ISC have the license migrated to MIT text by me if it possibly meets the criterion? (+the permissions listed within MIT License)

Was wondering after I had seen this answer on ISC vs BSD vs MIT If both explicit & implied rights are the same and the permissions mentioned in the ISC are also found in MIT, including to sub-...
3 votes
1 answer
120 views

Is CC-BY-SA 3.0 compatible with Apache 2.0?

Creative Commons explicitly states that GPL3 is compatible with CC-BY-SA 3.0. However, there is no information on its compatibility with Apache 2.0. Currently, I am hosting Apache licensed content on ...
1 vote
1 answer
60 views

Using EPL 2.0 library as a node module in APL 2.0 project

I plan on using an EPL 2.0 Library in an Apache License 2.0 project as a dependency for the UI. I won't be modifying the source code but I believe when we do npm install to install the library, the ...
8 votes
2 answers
2k views

Using an unmodified GPL library in non-copyleft code

I am writing a piece of software that I plan to distribute. In my code, I use a GPL licensed library. Do I have to apply the GPL to my software even if I did not do any changes to the above mentioned ...
24 votes
3 answers
2k views

Copyfree Open Innovation License compatibility

I'm interested in the Copyfree Open Innovation License as a simpler alternative to Apache 2.0 (it is a permissive license with an explicit patent grant). But because it's not so popular, not much ...
3 votes
1 answer
39 views

Regarding an algorithm, its implementation under GPLv3 and permissive licenses

Let's say an algorithm is published and then afterwards it is implemented under GPLv3. Although the algorithm is mostly abstract, it does refer to specifications from a de facto standard in order to ...
3 votes
1 answer
199 views

Do the licenses of dependencies matter if the dependencies are not actually shipped by my software?

I have a github repository that I plan on making public, and I'm in the process of choosing a license for it. It's a Python project that utilizes a number of open source libraries. The code for those ...
0 votes
1 answer
39 views

Including design reference implementations with open source program

I am developing an open-source FPGA project that targets multiple FPGA development boards. The project itself is licensed MIT. On one of the targets, the VGA-to-HDMI encoder chip included on the board ...
1 vote
1 answer
69 views

Choice of and conversion between licenses

I have found an article with links to compare license types, but as there are so many, it's still very hard to decide, so I will have to keep reading, but what I hope to find are answers to the ...
2 votes
1 answer
57 views

Package that includes a library file with non-commercial license

We are trying to use a package released by a commercial entity for use with one of their reporting software. I think it was closed source at one point then they converted it to a "Community" ...
2 votes
1 answer
114 views

Is Docker (Apache 2.0) compatible with GPLv2 or BSD Licensed projects?

I'm developing a project that includes a section with an implementation on Docker, but Docker is based on Apache 2.0 license. I saw that Apache 2.0 is incompatible with GPLv2 and I want my project to ...
2 votes
2 answers
288 views

Which license for a project combining MIT libraries and GPL modified files?

I have a website that uses MIT licensed libraries for JavaScript (THREE.js, Chart.js, js-yaml). The librairies are loaded through CDNs so their source files aren't explicitly present in the source ...
3 votes
2 answers
105 views

Is CFITSIO free software/GPL compatible?

I am planning on starting a free software project in C that deals with creating maps of astronomical data; as such, I will be working very frequently with FITS files. One of the best libraries for ...
0 votes
0 answers
46 views

How can I properly relicense MIT software to MPL 2.0 properly, while maintaining proper copyright notices

I have a project, it is a Rust one. From my understanding, with the MPL I must put a per-file header. Must I one-by-one add the MPL header to every file (perhaps including TOML files, etc.) or what? ...
0 votes
1 answer
38 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 ...
8 votes
1 answer
446 views

SOFA software license compatibility with FOSS/CC licenses

The International Astronomy Union's Standards of Fundamental Astronomy is a software library providing an authoritative suite of functions useful in astonomonical and geospatial calculations. It is ...
2 votes
1 answer
83 views

Do I have to open source my app if I use unmodified API data licensed under CC-BY-SA 4.0

I'm working on a little Quiz App. To get questions I use Open Trivia DB All data provided by the API is available under the Creative Commons Attribution-ShareAlike 4.0 International License. I have ...
2 votes
2 answers
66 views

How Viscosity VPN integrates OpenVPN with GPL2 license?

My understanding of GPL2 license make impossible that a proprietary software like "Viscosity" could possibly include a GPL2 code like OpenVPN. But going to their page, they clearly state ...
10 votes
3 answers
3k views

Which license can protect a software to be distribute without changes under a different name?

I'm looking for a license that fit in the following points: Software source code will be public so anyone can read it or use it. Anyone can contribute or add modifications to the source code (pull ...
1 vote
1 answer
120 views

How to use GPL-licensed project with MIT code snippet license correctly?

My company uses WordPress (GPL license), a child theme of a theme and plugins under GPL and just a few code snippets under the MIT license. Because the GPL license is the stronger license (MIT license ...
14 votes
5 answers
7k 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?
2 votes
1 answer
222 views

Converting fonts to curves for other companies' drawings: Font Licensing?

We have a server that allows for anyone to do processing on different vector files. One feature we are planning is to allow them to convert SVG's with text elements to paths. In order to do this ...
-1 votes
1 answer
62 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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