Yes, this is correct. I was wrong in the last mail.

Since the externals are built and linked when building libpd as iOS doesn’t 
allow dynamic linking, there’s no way to satisfy the distribution clause in the 
LGPL. I was thinking about *abstraction* libraries earlier which are OK as long 
as you can allow users to update them. I do this in PdParty by exposing the lib 
folder and make it easy to swap in new versions of those files. Of course this 
works since they are not binary compiled libraries.

I was hoping for expr adopting a BSD license for this issue, but I also 
understand if the authors choose not to. I’m pretty sure everything else 
distributed in the pd vanilla sources is BSD.

Also, I’m sure there are apps running with expr~ etc in the App Store. You only 
have to add those files to your build tree when building libpd and call their 
setup function. I doubt there is a automatic mechanism Apple is using to detect 
such things.

--------
Dan Wilcox
@danomatika <https://twitter.com/danomatika>
danomatika.com <http://danomatika.com/>
robotcowboy.com <http://robotcowboy.com/>
> On Nov 7, 2015, at 1:08 PM, [email protected] wrote:
> 
> From: "Scott R. Looney" <[email protected] 
> <mailto:[email protected]>>
> Date: November 7, 2015 at 12:24:44 PM MST
> To: "[email protected] <mailto:[email protected]>" 
> <[email protected] <mailto:[email protected]>>
> Subject: Re: [PD] looking for other vanilla filters or abstractions for libPD
> 
> 
> thanks Jonathan. this is what i assumed re LGPL when i saw a discussion about 
> using fluidsynth in a build, which has a LGPL variant but not anything more 
> permissive. so one question would be if anyone here on the list had a paid 
> app rejected or accepted on the App Store due to using an LGPL license? expr 
> and expr~ are very useful for a variety of things but for now i'm not using 
> them due to this offchance.
> 
> i would further guess that FSF's exact words on LGPL were probably pretty 
> dark on using the iTunes Store in general. i've seen some announcements from 
> them in the past that made it clear how they feel about walled gardens.

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