Re: What is the best way to port GNUstep application to modern Mac?

Provided that the code does not use GNUstep-only libraries or APIs (such 
as GNUstep-only APIs in Base or Gui), it should be possible to compile 
any GNUstep application for macOS if you generate a new Xcode project. 
You should use the native macOS APIs (Foundation and AppKit) or else the 
application will not behave like other Mac apps.

Since it supported macOS a few years ago, before the architecture 
change, what did the architecture change do to prevent it from being 
compiled for arm64? Is there x86_64-specific assembly or violations of 
the new security requirements for arm64? If the build is not working for 
unknown reasons, you might want to generate a new Xcode project with the 
existing source code.

On 10/20/25 18:51, Michael Rans wrote:
> The Oolite game (https://github.com/OoliteProject/oolite) was 
> originally developed on Mac but now only works on Windows and Linux 
> using GNUstep due to the Mac architecture change a few years ago. What 
> would be the best approach to port the application to modern Mac (with 
> regard to the Objective-C/GNUstep part)? For example, is it best to 
> try to use the Mac APIs directly or to compile GNUstep Base for Mac if 
> that's possible? Are there any gotchas or blockers to look out for? 
> Are there any examples of projects using GNUstep that work on modern 
> Mac as well as Windows and/or Linux?
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