Louis asks about a dependency on LGPL.

 -- replying below to --
From: Louis Suárez-Potts [mailto:lui...@gmail.com] 
Sent: Tuesday, January 20, 2015 07:05
To: dev@openoffice.apache.org
Subject: Re: [DISCUSS] Qt as a replacement for VCL

[ ... ]

Indeed, thanks. But let me get this straight. The Qt license, which for us 
would be LGPL, is not an obstacle? (I know you described a possible usage that 
did not seem to transgress license. But we should need to be rather careful 
here.)

<orcmid>
   Yuri had intentionally stayed away from the license question and 
   simply described his impression of Qt in terms of technology.
     However, I do believe that having Qt in place of VCL would be 
   very serious (although allowing Qt under VCL as an *option* is different).  

   I believe the governing conditions in the Apache Project Maturity Model 
   (https://wiki.apache.org/incubator/ApacheProjectMaturityModel) are CD20, 
   CD30, and especially LC20.
      Going to Qt would be more than a requirement for using the compiled 
   code, it would also be a requirement for being able to compile the code.
   In the case of writing aids that are made available with AOO binaries 
   (or as extensions), there is no dependency concerning licensed material 
   at the AOO source-code level.  The license accompanies the extension, 
   but the extension's usage at the AOO level is indifferent and the 
   extensions are replaceable.  Recall the project was very careful about
   that.

   Relying on Qt, even as a redistributable shared library obtained from the 
   Qt project, makes it not possible to build AOO without that dependency, 
   and it would permeate the APIs and source-code architecture everywhere.  
   Apart from the effort required to do that, I think that is a serious 
   intrusion of an LGPL dependency into the entire project.  

   I think there is an open question about sliding Qt under VCL as simply a 
   platform adaptation.  My question to Yuri was about what he knew concerning 
   lifecycle management in handling that.  I believe that remains to be 
   explored.  That might be someone's itch to scratch, but I don't think it 
   should distract the project at this point.  I think there are many other 
   pressing matters that require someone with both an itch and the means to 
   scratch it.

   I also think there is some sort of confusion of Qt with respect to Webkit.
   I am not certain what that is.  However, to the degree one is interested
   in moving toward light-weight GUIs that take advantage of the HTML5, CSS,
   and JavaScript support on devices and the cloud, there seem to be more 
   direct avenues that one might consider for AOO, although I for one am
   completely ignorant of what that would disrupt in the current AOO 
   architecture and source-code structures.

   Squirrel !;<).
</orcmid>




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