Re: Substitute classes

[Gregory Casamento]

David,

There *is* an issue if code is incorporated directly.   Dynamically
linking doesn't mean you need to release your code, but pulling code
directly into an app or other codebase does.

Of particular concern is that there is no such thing as a shared
library under iOS.  All libraries and code on the iOS platform are
statically linked.

GC

On Thu, Mar 17, 2011 at 9:49 AM, David Wetzel <address@hidden> wrote:
> Hi
>
> I ported the baseadd stuff to iOS.
> My MacBook pro is currently on repair (nvidia issue) when it's back I can 
> start committing.
>
> Gnustep is LGPL.
> So there is no issue.
>
> Dave
>
> Von meinem iPhone gesendet
>
> Am 16.03.2011 um 17:18 schrieb Gregory Casamento <address@hidden>:
>
>> Yes, it is possible.  You can use the Objective-C 2.0 runtime to
>> change the implementations of certain methods in those classes:
>>
>> http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ObjCRuntimeRef/Reference/reference.html#//apple_ref/c/func/method_exchangeImplementations
>>
>> More things you should be aware of...
>>
>> What you should be aware of is that GNUstep is LGPL 2.1 or later
>> licensed software.   While simply linking with GNUstep's libraries
>> wouldn't cause you to need to release your software under the LGPL,
>> directly incorporating code from the project would since it would be
>> considered a "combined work."
>>
>> Normally, this would be fine (assuming you're okay with releasing your
>> code), but Apple's terms of service for the App Store place
>> restrictions on distribution which is not compatible with the LGPL/GPL
>> license.   While Apple, to my knowledge, has never removed an app
>> because it was GPL'd or LGPL'd, the members of the VLC project
>> voluntarily removed their app from the store due to licensing concerns
>> raised by the FSF.
>>
>> While I realize this is not the answer you were hoping for, I hope it
>> helps somewhat.
>>
>> GC
>>
>> On Wed, Mar 16, 2011 at 2:56 PM, Daniel Brajkovic <address@hidden> wrote:
>>> I want to substitute certain Cocoa classes, in particular, those related to 
>>> distributed objects ("DO"), with GnuStep classes. How do I do that?
>>>
>>> Secondly, and this probably has the same answer as the first question. I 
>>> want to include certain GnuStep classes into a iOS app, again those related 
>>> to DO. iOS does not have DO functionality but I want to include for a 
>>> particular app I would like to develop. Is that possible?
>>> _______________________________________________
>>> Gnustep-dev mailing list
>>> address@hidden
>>> http://lists.gnu.org/mailman/listinfo/gnustep-dev
>>>
>>
>>
>>
>> --
>> Gregory Casamento - GNUstep Lead/Principal Consultant, OLC, Inc.
>> yahoo/skype: greg_casamento, aol: gjcasa
>> (240)274-9630 (Cell)
>>
>> _______________________________________________
>> Gnustep-dev mailing list
>> address@hidden
>> http://lists.gnu.org/mailman/listinfo/gnustep-dev
>



-- 
Gregory Casamento - GNUstep Lead/Principal Consultant, OLC, Inc.
yahoo/skype: greg_casamento, aol: gjcasa
(240)274-9630 (Cell)