Questions tagged [lgpl]
Use this tag for questions about the GNU Lesser General Public License, how to apply it, or how to re-use works under this license
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Is deleting a file under MPL 1.1 is a license violation? [duplicate]
I have an open source code repository under MPL 1.1/GPL 2.0/LGPL 2.1.
My question: is deleting a file is a license violation ?
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1answer
24 views
Is using LGPL 1.2 or EPL 1.0 licensed jar allowed in proprietary software in Docker?
I am creating a proprietary java application which uses some open source jars licensed with LGPL 2.1 or EPL 1.0. I am deploying the application in docker container with all jars inside it.
Is there ...
-1
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1answer
27 views
Can I use LGPL 2.1 licensed java jar without disclosing my complete source code
I am working on a proprietary java application. I want to use a java library licensed LGPL 2.1. One condition of the license is to disclose source code. What does it exactly mean? Do I need to ...
0
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1answer
35 views
Is it legal to create an auto-extractible SFX archive containing mixed commercial/LGPL software?
I wondered something :
- I develop a little standalone tool for a commercial application written in C++ with Qt (lets say "test.exe")
- Not having a commercial licence of Qt, I use Qt LGPL license
- I ...
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2answers
53 views
Am I allowed to provide compiled binaries of open source libraries?
I have a project which is open source. I use the gstreamer library in my application. Can I distribute my application on github and provide a compiled version of gstreamer with it (so users dont have ...
2
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0answers
37 views
FFMPEG License as a separate library
I am currently writing a video project using FFMPEG shared library with other license abiding projects (like libass and freetype2). I have a script that compiles FFMPEG and the other libraries as a ...
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
1answer
28 views
About using GNU GPL 2, GNU GPL 3 and LGPL software in a commercial product
I build a commercial product, which uses some third party products licensed under GNU GPL 2, GNU GPL 3 and LGPL.
I do not modify myself the source code of these third party products and I do not ...
0
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1answer
25 views
LGPL3 code in GPL3 project
It seems like this should be obvious, but I'm not finding an answer. LGPL is a subset of GPL, IIRC, so can I use LGPL code in a GPL project?
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0answers
47 views
Redistributing LGPL source code or GPL packages on a BSD Licensed package
I have a python project licensed under BSD-License.
On its bottom I use a source code written in C++ which is licensed as LGPL and I have an optional dependency on a python package licensed under GPL.
...
2
votes
1answer
59 views
Licensing LGPL software commercially
We have a mobile app software and we distribute it with LGPL v3. It uses other 2 components licensed under LGPL-v3 and MIT. For our own code, we are have the full ownership (i.e. nobody else have made ...
4
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1answer
113 views
GPL for Embedded
I'm working in a company that develops and sells embedded systems. We are using Linux and some GPL software, alongside proprietary software. Some of the GPL softwares are modified to fit our needs.
...
3
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1answer
45 views
Can I use bits of source from another library in an original work without having to worry about license issues?
I've been writing a docking framework in JavaFX. This is a new library with original work. However, I have been reading the source code of a few other open source docking projects to get some hints ...
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2answers
112 views
Can someone explain the basic requirements of Open Source Qt LGPL to a beginner?
I’m a automotive electronic and electrical engineer with little to no software experience.
I need to hire a developer to develop Windows GUI application that is used to configure and program a ...
3
votes
1answer
134 views
What is the difference between LGPLv2.1 and LGPLv3?
Below text is cited from https://www1.qt.io/faq/#_Toc_3_6
LGPLv3 is the current version of the GNU Lesser General Public License. LGPLv2.1 is an older version and not recommended by the Free ...
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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 ...
3
votes
1answer
71 views
Does it make sense to license an application (not library) under LGPL?
Say, I have a game engine which is meant to be an executable, not a library (i.e. it has its' own main() and has the top-level control. It calls on other libraries but cannot be used as a dynamic ...
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0answers
32 views
Which of Qt license files must we include with our open source (MIT) software?
We are using the LGPL version of Qt 4.8 for some components of our MIT-licensed desktop software (https://appleseedhq.net/).
In my Qt 4.8.7 distribution, I see at least the following license files:
....
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1answer
267 views
iText 2.1.7 in commercial Project
This question was originally asked on Stack Overflow but since licensing questions are off topic I move it here. So here comes the original question about this open source library:
I want to use the ...
4
votes
1answer
657 views
Is dual licensing a software that contains gpl programs possible?
I have seen that there is a question about gpl and dual licensing, but I know copyleft can behave different depending on the shape of the software.
so here's my question:
I have a package of lua ...
1
vote
1answer
40 views
Is the Qt Network Authentication module LGPL?
The documentation is unclear whether the QT Network Authentication module is licensed under LGPL or GPL. Has it changed recently?
2
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1answer
52 views
What are my license options for releasing code I derived from code that was released under LGPL v2.1?
If I take some code that was released under LGPL v2.1 and make modifications to it, what are my options for releasing that derived work again as open source?
I guess, one option would obviously be to ...
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 ...
1
vote
1answer
80 views
Can LGPL 2.1 licenses software be re-published under GPL 3.0?
I have software licensed under LGPL 2.1 and I want to modify it and re-publish the whole software under the GPL 3.0 license. Is this legally possible?
I think so, but I'm not completely sure.
LGPL 2....
2
votes
1answer
61 views
Query on distributing Application under Apache 2.0 license which dynamically links with LGPL2.1 shared libraries
I'm writing some C++ code which I might eventually like to release under an Apache v2.0 license.
I'm looking to build the application linking to some of the LGPL v2.1-licensed shared libraries from ...
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1answer
305 views
Can I use GPL 3.0 or LGPL licensed libraries in my commercial closed source IOT product?
I am building an IOT product, an home automation solution, where I am using ESP8266 Arduino Core that is LGPL-2.1 and also few libraries which are GPL 3.0 licensed.
For security reasons I do not ...
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vote
0answers
74 views
What happens when someone merges Apache 2.0 and LGPL libraries into a GPL-2 derivate?
I used a PHP library, which in turn is elementary based on libraries published with an Apache 2.0 license and a LGPL license. The author himself has published his library under a GPLv2 license. ...
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0answers
76 views
Building programs using qmake
Can I use qmake to build Non Qt programs with a closed source or MIT licence?
The c++ code that I'm building does not include any Qt headers or link to any Qt libraries.
The only mention of Qt in ...
4
votes
1answer
40 views
Is it more accurate to compare CC BY-SA to LGPL rather than GPL?
CC BY-SA, LGPL and GPL are all copyleft licenses. GPL's key feature is that by embedding one work in another (as defined in a software context), the combined work becomes GPL. With LGPL this is not ...
0
votes
1answer
137 views
Can I use code from an LGPL v2 licenced project in a BSD 3-clause licenced project?
There is a BSD 3-clause open source project I would like to contribute to.
The code I would like to contribute is code that I do not own from an open source library released under the LGPL version 2.
...
1
vote
0answers
93 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 ...
0
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1answer
54 views
Concatenating LGPL code
I want to reuse some LGPL'ed code in a commercial piece of software. Said code is here if you're particularly interested.
However, the library itself (written in JavaScript / CSS) has been split ...
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1answer
292 views
LGPL 2.1. Attributions required?
I'm about to release my LGPL 2.1 licensed java/maven project where I have a dependency to a 3rd party jar also licensed under LGPL 2.1. I've also copied and modified some of the 3rd party project into ...
1
vote
1answer
92 views
Publishing Java project with LGPL licensed module
I have a Java project made by multiple JARs and one of them is LGPL licensed. I know that this kind of license doesn't propagate through the modules that uses it. But every code modification that I ...
6
votes
1answer
118 views
LGPL 2.1 snippet copyright attribution
I want to use portions of code from the FFMPEG library to provide screen capture function for a commercial application I'm writing. I do understand I need to make a shared library out of the function ...
3
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1answer
72 views
Does a (L)GPL3 device still need to provide it's original service after modification?
Let's assume I am building an embedded linux device using amongst other things (L)GPLv3 software. The device is sold to non-business users so the anti tivoization clause applies.
I want to be ...
2
votes
1answer
101 views
VLC and VLCJ licenses
I'm confused about the licenses GPL and LGPL.
I see that VLC is released under LGPL license since sept 2011: https://www.videolan.org/press/lgpl.html. But VLCJ, which is a Java wrapper on top of VLC, ...
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votes
2answers
504 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 ...
2
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0answers
124 views
Does an application linking to an unmodified LGPL-3 library need to be debugger-friendly?
I currently work on a proprietary, closed-source software suite, which is distributed to customers as part of a larger package (including various hardware and services).
The software suite uses LGPL-...
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votes
1answer
37 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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votes
1answer
42 views
choose between open-source or close source
if hypothetically I have developed special software, and I only want author recognition for it (leaving money aside) can i choose to distribute my creation as open source without other people usurping ...
4
votes
1answer
260 views
LGPL-licensed code reuse in MIT-licensed project
I have an MIT-licensed (in plans, currently it's not published) project. And I've found an implementation of the required algorithm in an LGPL-licensed project. Am I allowed to include that code in my ...
2
votes
1answer
202 views
How to write additional permission for LGPLv3 license
I’m planning to release my code under LGPLv3 license but I can’t find answers to several question.
Let me describe my situation:
I’ve created library and want to use LGPL v3 license for this code;
...
3
votes
2answers
244 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 ...
1
vote
1answer
89 views
can I remove files and folders in a PHP package without violating its license?
Let's say I'm working on a PHP application and I want to integrate some PHP packages like TWIG. Using Composer or some other automated management or code assisting technologies is irrelevant here. All ...
4
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1answer
179 views
GNU Lesser General Public License with signed C# assembly
We have a closed source software written in C# that we sell. All of our assemblies are signed. We want to use a third party assembly, that is published under the GNU Lesser General Public License v2.1....
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1answer
87 views
Is the Epson license Open Source?
I plan using this library https://github.com/endlessm/epson-inkjet-printer in a commercial product.
The licensing conditions for it are the following:
This program is distributed under GNU Lesser ...
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vote
2answers
700 views
What is the difference between an open and closed consumer device?
The Qt Open Source Licensing Obligations contain the following line:
Must make “open” consumer devices
What does this mean? I know about the linking mechanism required by LGPL, and that part of ...
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votes
1answer
74 views
Can I obtain a source code for RGSS1/RGSS2, assuming it contains LGPL part?
RGSS1/RGSS2 is a game engine for RPG Maker XP and RPG Maker VX. The binary of them consist of two files:
Game.exe ... It's about 100KB and seems to be a mere loader.
RGSS104J.dll ... It's about 800KB ...
0
votes
1answer
541 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 ...
