Re: Commercial Applications

Hi Stephen,

A couple things not mentioned, and maybe they are obvious but since you are asking:

If you distribute copies of LGPL binaries then the license requires you to also distribute or make available the source code that built these binaries to whomever you gave the binaries to.

If you make modifications, a good way to satisfy this requirement is to contribute the improvements back to ROOT and then you can point people at root.ch for the sources.

Also, if you do *not* distribute any code then you are free to use GPL parts, dynamic or static linked, and modify things to your heart's content. The teeth of (L)GPL only kick in when you distribute.

But, I'm a physicists not a lawyer. So, take my words knowing that.

Regards,
-Brett.

Fons Rademakers <Fons.Rademakers_at_cern.ch> writes:

> Hi Stephan,
>
> this is basically correct. If you don't have fftw installed the ROOT
> interface will not even be build, so that should solve that
> problem. For the rest the system is LGPL and you can include it in you
> commercial app (the dynamic linking is not a requirement, but most
> convenient as ROOT will manage the needed modules via its plugin
> manager).
>
> Cheers, Fons.
>
>
> thiel_at_mikro.ee.tu-berlin.de wrote:
>> Hello,
>>
>> I have a question concerning a comercial use of the root
>> framework. What I have to consider ?
>>
>> As far I have understood I am allowed to use the root framwork
>> without prior permission or fee payment because it is LGPL.
>> I have to link dynamical to the root libraries. I should disable
>> fftw (mathmore) because this is mostly GPL ...
>>
>> Could someone give me some more hints or correct me ?
>>
>> Regards,
>> Stephan
>>
>
> --
> Org: CERN, European Laboratory for Particle Physics.
> Mail: 1211 Geneve 23, Switzerland
> E-Mail: Fons.Rademakers_at_cern.ch Phone: +41 22 7679248
> WWW: http://fons.rademakers.org Fax: +41 22 7669640
Received on Fri Aug 15 2008 - 17:57:39 CEST