On 07.10.2011 15:18, Stephan Holl wrote:
> Hello ede,
> 
> edgar.sol...@web.de, [20111007 - 11:21:10]
> 
>> First and foremost, there is _no_ license issue here. We have two
>> licenses, to which terms we have to agree and act.

stephan, do you have any substantial proof that there is a licensing problem?
 
> I could not find the place where I could get the SDK dlls (version
> 3.3) for Download for free. It would be good if you could provide a
> link where the files came from.

they are extracted from the binary releases of gvsig
http://www.gvsig.org/web/projects/gvsig-desktop/official/gvsig-1.11/downloads

several linux distros host the sdk 3.3 sources
http://www.google.com/search?q=libecwj2-3.3-2006-09-06

> Current ERDAS-website does apparently does not host it (any more?).

yes. i couldn't find it there either.

> I would like to see the dlls excluded in the nightlies and provided in
> a separate package if one likes to use them. 

how about simply excluding them from intevation nightly build?

>Additionally, this version
> only allows the compression and decompression of files <500MB. Who is
> checking this with this binary build?

How do you figure? Did you read the license? It states
-->
Use of the ECW JPEG 2000 SDK with Unlimited Decompressing and Unlimited 
Compression for applications licensed under a GNU General Public style license 
("GPL") is governed by the "ECW JPEG 2000 SDK PUBLIC USE LICENSE AGREEMENT".
<--

> 
> Looking at the GDAL/QGIS-folks the do not distribute any binadary-build
> using ECW; however, building from source is surely available, but the
> enduser must download an SDK - after aggreeing a licence term.

right. because the versions after 3.3 restricted their licenses in this regard. 
gdal btw. still has builds that ship ecw 3.3 binaries.

> 
> Again, I would strongly vote for excluding the ecw-binaries and adding
> a hint to the enduser, that ECW-dlls are available and only need to be
> placed at some place to make OJ happily using it though.

i understand you vote for exclusion from all builds and a general separate 
package here. taking into account that i can invalidate all your issues above, 
what is the rationale for this?


regards ede



> 
> another 0.02¢.
> 
> Best
> 
>       Stephan
> 
> 
>> ECW SDK license (note: version 3.3):
>> For everyone unsure i attached the license of the ecw code used to
>> this email. Our use case is the first license in there: -->
>> Use of the ECW JPEG 2000 SDK with Unlimited Decompressing and
>> Unlimited Compression for applications licensed under a GNU General
>> Public style license ("GPL") is governed by the "ECW JPEG 2000 SDK
>> PUBLIC USE LICENSE AGREEMENT". <-- The only drawback would be some
>> commercial restriction "selling,renting not allowed", but this
>> shouldn't be our concern, because we do _nothing_ of that sort and
>> anyone who wants to should make sure to oblige _all_ licenses.
>>
>> GPL2:
>> Secondly there is the GPLv2, the oj license. Everybody can get a copy
>> themselves. in a nutshell it protects every code based on gpl code by
>> extending gpl to it. This actually does not prevent you to use
>> libraries or other software with it. It "merely" insists on proper
>> interfaces, which make sure that these are independent software
>> parts. This can be problematic, because a lot of interfacing in some
>> programming languages is done by definitions, which are done in
>> source code themselves. So actually if a library would include this
>> code, it would need to be gpl'd again. But this is not the case here.
>> There is a clean separation of the source code and oj is merely using
>> ecw routines, not the other way around. This is covered by the
>> "plugin" definition.
>> http://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins
>>
>> in conclusion, no problem here.
>>
>> ..ede
> 
> 
> 

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