=?iso-8859-1?Q?Re: How to port to GNUstep ??=

[David Wetzel]

Richard van Paasen wrote


> I've read that it is advised to port via OpenStep 4.2. Is it
> advised to get the app completely running on OpenStep or will
> it suffice to use OpenStep 4.2 for only the tools it provides
> for the porting job? E.g. the application contains .nib files,
> which will have to be converted on a Mac right? But how about
> code that uses NX calls for which GNUstep provides alternative
> NS calls? Should this code also be ported to OpenStep first?

It should run on OPENSTEP. You can convert the nibs on OS too.
You may run the NeXT conversion scripts to port it. After the scripts are done 
you may have to do some work by hand.

> 2.
> Leads me to the second question. What can I exactly expect from
> OpenStep? What tools does it offer to port from NeXTSTEP? Does
> OpenStep (Mac OS X) implement all functionality of NeXTSTEP?
> I missed some stuff in GNUstep, e.g. NXPtrStructKeyPrototype and
> NXStream. Will I have to fix much by hand?

OPENSTEP is the version that came after NeXTstep OS confirmed to the OpenStep 
standard. OS 4.x (please use 4.2) came with conversion scripts. 

MacOS X 10 is "OPENSTEP 5.2" it lacks Display Postscript but has Display PDF 
now. The conversion scripts are gone.


> 3.
> What will have to be done to port (parts of) the application from
> OpenSTEP to GNUstep? Will it run out of the box or do I have to
> fix things first?  Which tools are available?

You have to convert the NIB files and the makefiles.


> 5.
> How can you tell when it will be easy/hard to port an application
> from NeXTSTEP to GNUstep?

Everything is relative.

If you need the port done we could do this for you. We have everything from old 
NeXTs to new Macs running 10.1 here.

Dave

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