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There's a LGPL-licensed console application. I want to create a commercial GUI front-end for it and distribute it bundled with this console app. Does LGPL license allow that?
Note that I am not using a LGPL-licensed library, I am using a stand-alone application.
I tried reading the license itself, but it is still unclear to me.
Note that I am not using a LGPL-licensed library, I am using a stand-alone application.
The first L in LGPL stands for Lesser not Library. So it does not play much of a role whether it is a library or a stand-alone application.
LGPL is with weaker copyleft. That means, if you re-distribute that LGPL'ed software in object code (binary) you need to offer the source for it (for that version you distribute).
However it is lesser, meaning that you do not need to put your code under LGPL as well. Take care that your users should be able to tell both applications apart (and replace the one or other part easily).
However if you write GUI frontend, I think this is a pretty standard case, you will create a command-line and then execute the LGPL'ed binary.
Take care that this is from a developers perspective, not from a lawyer. A lawyer would require to see your current application and then could tell you in more detail the whats and whereabouts for your very concrete case.
It's also practical you get in contact with the author of the LGPL'ed software, they might be interested to know which supporting tools exist. As they have choosen the LGPL it's likely they do not expect your software to be under LGPL as well. So if you get in touch with the original authors you can also clarify your issue, albeit I don't think there is one technically.
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I have built a small program for plotting data from serial port using Qt and QCustomPlot. I am an engineering student, and I had a project that required me to manipulate data from the ADC of an mbed, so I built this app for my convenience and for experience. I would like to share it with other people who need such a tool (will put it on the mbed website).
I am not a programmer and I do not know a thing about licenses. The QCustomPlot is under GPL. I read that I cannot use static linkage with the GPL licence for QT; I do not intend to, (I will post the source too), but would like to include a statically built version of the program for people who would rather just use the program.
So without going in too much detail, what can I do? Also, do I need to include any disclaimers in my source?
First of all: choose a license for your software. The website http://choosealicense.com can help you in doing that.
Usually a license requires to add a text header to your source code files. This is just a fragment of text which shows the terms of the license right within the source code.
Also, a license.txt file is often required in which the full license has to be pasted. Anyway choosealicense.com clearly explains what to do.
Notice that some licenses (e.g. the GPL) need that a list of changes is added to your source code. This list has to be mantained through the entire life of your software distribution and updated when you provide new releases.
When you are ready with your package use a website like GitHub to distribute it as a source code.
Do not include binaries. Just add the source code and a README file in which you explain how to compile them.
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I plan to use CKEditor in commercial site. I've read http://ckeditor.com/license but I didn't understand how it is possible to have pricing for commercial use while they offer LGPL(which is good choice for commercial use)
Imagine you want to compile the javascript code of CkEditor into a binary application. Just assume this is possible. Then you would not ship the source code of the library any longer.
If you now even make modifications to the source code to distribute within the binary, you do not satisfy the LGPL as it requires that you provide the source for the library along with your binary. Same for the MPL on the file level.
If you don't want to distribute (your changes in) the source-code form of the library, you then can get a commercial license by the project (you buyout the license).
Next to such specific cases I can imagine that some folks just would like to have a commercial license as form of a backup if their legal department is too much puzzled. If the license is relatively cheap, they can opt for it and continue with their own work w/o being further interrupted. Business, you need to keep it running.
But regarding the LGPL, as long as you offer source (incl. the changes you probably make) of the library, you're fine to use it with non-free programs. So this does not mean that your website must be LGPL it's just using a LGPL'ed library.
You can use it for your commercial website. However, if you build a product and want to include (distribute) CKEditor with it then you might need a commercial license.
The condition whether you need the license is based on your product's license. If your product is closed sourced then including an open source product with it without sharing the source code is illegal. So, this commercial/closed distribution license fills the gap. You pay for it and you can distribute your product with the CKEditor closed sourced. Additionally you may do any closed source modifications to CKEditor.
TL;DR: if you want to modify and distribute it with a commercial license then you need to pay, otherwise you are free to use to for free!
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i want to publish my software under a opensource license with the following conditions:
you are allowed to:
Share — to copy, distribute and
transmit the work
use a modified
version of the code in your
application
you are not allowed to:
publish modified versions of the code
use the code in anything commercial
is there a software license out there that fits my needs ?
Having a noncommercial clause is against the spirit of opensource. So no, there isn't. And if you do make one yourself then you should not be calling it opensource but instead call it a non-commercial license.
There are in fact code with the kind of licensing you are talking about and there are widely recognised by the opensource community as being non-opensource. MINIX (by Tanenbaum) is one of them. The code is freely available and public and anyone can see but have severe restrictions on re-publishing modifications. MINIX is widely considered to be a closed-source piece of code.
Lots of commercial, proprietay, closed-source embedded operating systems are actually distributed as code and have only copyright laws protecting them (instead of complex, byzantine DRM). Just the fact that people can see your source code does not make it open source.
One last example. Windows (including XP, Vista and Seven). Microsoft makes the source code Windows available to anyone who needs it for non-commercial, educational purposes provided you sign an NDA. Their source license sounds a lot like what you want. Check out the license here: http://www.microsoft.com/resources/sharedsource/licensing/basics/wrklicense.mspx. I doubt anyone would argue that Windows is opensource.
You can publish code under any licence you want but it will only be F/OSS, Open Source, if it complies with the OSI definition : http://www.opensource.org/docs/osd. Your conditions are incompatible in several ways.
Take note that almost all players in Open Software use OSI-compliant licences - you would be going completely against all current opinion and practice.
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I have a commercial Java application which I will be distributing.
I want to use an LGPL'd java library.
I wont be modifying the library.
Does the LGPL license of that library have any impact on my application's license?
Yes, it does to a certain degree. You are e.g required to allow people to upgrade the LGPL'd library without your help. I suggest reading through the whole license yourself, as you're legally obligated to adhere to it's clauses. Know what you oblige yourself to, don't just take other people's words for it :)
As far as I understand the LGPL, no, you can distribute it however you like. You will only be linking to the library, not creating a derivative work, and the LGPL doesn't restrict linking.
There is no impact on your application. LGPL license allows inclusion in commercial application as long as the terms of the license are fulfilled (LGPL license text in the distribution, indication of the use of the library, etc).
My guess is that as long as your linking is dynamic (i.e. dynamic loading of the .dll/.so/.a/.class/whatever file at runtime), you're OK. If you statically compile your code to include the library, you're at risk of violating the license, depending on how your code is structured.
If it's Java, however, you can not link statically - it's an impossibility of the platform.
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Is there any codeplex license that allows some one to use my code any way they want but not to create a program that does the same thing that my programs do?
The only way you can prevent a program from reproducing functionality is with patents.
Following on from your comment:
You will need to have a lawyer draft a license as you have very specific needs. The license will have to specify the exact conditions the code can be used under (or the conditions it cannot be used under.)
I am not aware of any "generic" license which covers this type of arrangement. And there are a wealth of issues to consider, for example:
Step 1. You have automatic copyright over your source code. This gives you, and you along the ability to distribute your application legally.
Step 2. You release the code under an open source license. The code is still yours, but now people can use it for whatever they wish, including recompiling and distributing the project under a different name (but with attribution?)
Step 3. You want to impose a restriction on the open source license, which you are within your rights to do. However this has to be very carefully worded and thought out.
Can I use part of the code in a similar application? How do you define similar?
What if I modify it? What about derivative works? Are they the same thing as your product?
Does it cover future versions of the code?
Disclaimer: I am not a lawyer. These are just ramblings that I can recall from the legal and ethical modules from my CS degree. All I can do is advise you to hire a lawyer to draft a license.