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I'm writing a command line tool in Objective-C (within xCode) that uses the Foundation Framework. I have to use Objective-C because I need to unarchive objects previously archived by NSKeyedArchiver.

My question is, I'm wondering if I can now use this compiled application on my Linux web server.

I'm not sure if there would be a runtime issue or if the executable could be its own standalone program that could actually run on my Linux server.

I'd appreciate any feedback.

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You can use The Cocotron to build your app targeted to Linux. It is an actual Cocoa implementation meant to fully interoperate (although it's not 100% complete of course), as opposed to GNUstep which is not meant to work that way. I use this and it is awesome.

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Is Cocotron active? There seems to have been no blog activity for over 2 years which doesn't fill me with confidence. I've looked at GNUstep in the past too and they both seem like interesting projects in need of some extra love and TLC.
@Roger: there are still active commits going in in the Cocotron source tree, so I guess it's still active.
It's very active, and very capable - if you check the google code page you can see that. It's got a learning curve but it's great once you get going. A lot of people see the webpage and think it's out of date and have trouble finding up to date info - I've started to put together a user's guide but it's not even at a draft yet.. eventually it will exist!
@nektarios, @JeremyP thanks both for the info, looks like it's worth another look after all. It's a very interesting idea and just the sort of thing we might be interested in for a couple of projects ...
@Roger Feel free to contact the project founder (and other developers) on the Cocotron Developers Google group.
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No, you cannot run a program that was compiled on and for a Mac on a Linux system. So you will have to compile it for (and on) Linux. Apple's Foundation framework is not available for Linux, but have a look at GNUstep, a free and open Cocoa implementation.

I don't know if GNUstep can read archives that have been archived with Cocoa's NSKeyedArchiver, though.

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I have provided a wrap-up on how to compile a command line tool based on the Cocotron Foundation framework on my blog.

This does also include a step by step guide on how to cross compile the Foundation framework for Ubuntu Linux.

Hope this is helpful!

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