Eiffel Studio adds GPL version

Eiffel Studio looks like a nice IDE. This might make an interesting case study of the effects of a good IDE on the popularity of a language.

The GPL'd effort has its own site:
http://eiffelsoftware.origo.ethz.ch/

It has debian packages in progress:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=361001

For completeness. The press release can be found here:
http://www.eiffel.com/general/news/2006/2006_04_05_pr.html

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Unsavory license model

From what I can tell, if you use the IDE to build your application then your application must be GPLd, unless you buy the commercial license. Even if you aren't doing commercial apps this prevents you from choosing a different license, like BSD. Too bad they didn't go with the special exemption that gcc has.

Also, the only way they can offer dual licenses is by requiring all contributors to assign copyright to whoever owns the copyright for Eiffel. Not unheard of, but it does put a damper on the "open source" aspect.

It's the libraries that make your code GPL

Merely using the IDE to edit source code can't possibly infect it with the GPL; enough people develop closed-source software under Emacs to make that idea unconvincing. It has to be the libraries that are actually included in your compiled code that make the whole thing GPLed.

For this dual-licensing model, the BSD would be useless for EiffelSoft: Tentacle A could use the IDE to generate a BSD-licensed application, and distribute it solely to Tentacle B, which (in accordance with the BSD) sits on the source code and distributes just binaries.

Finally, there are plenty of open-source projects that require contributors to assign copyright, beginning with gcc and every other FSF project; I'm sure there are others.

Re: It's the libraries that make your code GPL

Merely using the IDE to edit source code can't possibly infect it with the GPL

For the most part, no, though I wouldn't be too cavalier about the issue. It would be very easy in an IDE to use a wizard, template, or some other kind of boilerplate code without even thinking about it.

Anyways, I just wanted to point out the limitations of the license model they chose. Of course Eiffel-corp will do what it thinks is best for Eiffel-corp, and GPL coders will be happy, but others will have some thinking to do.

GPL doesn't force you to GPL your code

It's a common misconception that because a library is GPL, you're forced into GPL'ng your code. Your code can be anything GPL compatible. What happens is (or what the FSF claims) is that the distribution of your code along with the libraries effectively GPLs the entire work.

Eiffel Studio seems to be doing the Trolltech thing with regards to a business model revolving around the viralness of the GPL. If it works for them so be it, but it's hurt KDE in the long run.

Not to get too off topic...

But don't make claims like Trolltech hurting KDE unless you're going to actually back them up with some reasoning or evidence. Trolltech employs the guy behind the Plasma desktop behind KDE 4.0. Somehow I think he'd disagree with you. If you read KDE hacker's blogs a lot of them speak glowingly of Qt, I've never once seen them rant against Trolltech. Once you've submitted some patches to the KDE project and have worked with Trolltech on fixing bugs or getting features into KDE you can be qualified to determine whether or not their model hurts the project. I realize it's more popular on LtU to credit project's success on the language used to implement them, and plenty of people debate Gtk+C vs. Qt+CPP, but if I had to point to the one major reason the latter is leap years ahead I'd have to say it's that Qt has a big commercial backer.

Take Eclipse...

Yet, I still agree it hurts KDE when some applications (both commercial and opensource - I find Eclipse/SWT a good example) cannot be “ported” to QT because of license issues. QT is too fundamental a library in a KDE environment to have GPLed. I wouldn't have a GPLed libc (etc...), no matter how well supported it was.

What about glibc

I wouldn't have a GPLed libc (etc...), no matter how well supported it was.

That's a good argument that I've used in the past. If some company owned glibc, like Trolltech owns Qt, then Linux would have never taken off on the server.

Just look at the big commercial distros

Novell and RedHat and Sun chose Gnome for their environments. It wasn't just such random event of why that occured. Some guy being employeed by Trolltech to work on KDE isn't someone that could give an objective view on the matter.

Let's face some facts. If Novell or RedHat or Sun or anybody else ever hopes to get desktop linux into the mainstream, that includes ISVs, shareware developers and others, and they weren't going to be held hostage by whatever pricing scheme that Trolltech had for the week.

So you might not like it, but having a dual-licensed GPL/commercial toolkit as the basis for KDEs desktop hasn't done it any favors.

Hostage?

The software is GPL. That only qualifies as being held hostage if you openly acknowledge that you're developing a platform intended for closed source software.

My point with the KDE hacker wasn't that he was a great objective source. My point was that he's evidence that KDE hackers aren't distraught by QT's licensing scheme.

Redhat choosing Gnome is almost insignificant. They are a server focused distribution. This becomes pretty obvious when you look at the usability pushes from Ubuntu and Novell and the complete lack of headlines about similar efforts from Redhat.

Novell's SUSE has been a KDE based distribution for longer than it has been a Gnome based one. The shift started when they bought Ximian, which was Gnome based. I haven't read anything that suggests the shift was due to licensing.

Ubuntu, although primarily Gnome based at this time, has a spin off Kubuntu. Mark Shuttleworth, Ubuntu's creator, has stated that Kubuntu is now his primary desktop and he wants to make it a full fledged distribution. I would think ISV's would be something he's considering seeing as he's poured quite a bit of money into these projects. Linspire also helps fund KDE development.

If Trolltech's licensing was hurting KDE/Qt, then I would expect it to be of lower quality. GTK+/Gnome have been playing catch up up until very recently. Before Cairo, KDE clearly had fancier eye candy (and in some areas still does -- Metacity still doesn't support fading widgets for instance).

ISV's have proven in the past they will subject themselves to far greater lock in than they get with Qt. Developing MS software in the past has meant buying a compiler suite that was at one time more expensive than Qt, not getting any source code in the deal, and having your resultant software only run on one platform.

Also, just to clarify: the kdelibs are LGPL. If you buy a Qt license you can make closed source KDE apps.

Licensing questions

For those wondering why using the IDE would require you to use GPL for software written with it... turns out that binaries built with EiffelStudio are linked against the EiffelStudio runtime (it is required). Thus under GPL terms said binaries must be GPL'd as well.