Dear Johan: Hello.
1) Objective-C 2.0 is creation of Apple Inc. and is incorporated into OS X 10.5 (partially) / 10.7 (completely) and iOS 4.3 (partially) / 5.0 (completely). For GNUstep, the latest svn build of GNUstep can support most of the Objective-C 2.0 features if using clang as the compiler. Due to historical reasons that is related to versions and changes of GPL license and Apple Inc, GCC never get full Objective-C 2.0 support. Apple is now participating in another compiler project, clang, which is now the leading compiler for Objective-C and implemented full Objective-C features. About the libraries, GNUstep and Apple's Cocoa (sans Core Data) is code-compatible (GNUstep seemed like a superset of Foundation+AppKit) and can support all new Objective-C features if compiling with clang. 2) GBA seemed too old for this. You could try avoid using new features and stick to NeXTSTEP-era stuff (i.e. limit to iPhone OS 1.x-era feature set of Objective-C) to avoid issues. If possible, you should use a newer device, like a modern iPhone, or a development board for newer ARM processors (ARM Cortex-A9 or A15). Check out PandaBoard for this, as it is known good to run the latest ARM build of everything on Ubuntu. 3) Development of Objective-C is pretty much headed by Apple. If you can get hired into Apple's development department, you may have a say. Or you can try join the Étoilé team which is also focusing on that. Sincerely. Max 在 2013-2-22，下午6:33，bubble rogue <[email protected]> 写道： > Hi all, > > I have a small ObjC compiler for ARM7, 6502, ARM9 etc. in the works. I > wanted to make it compile itself e.g. on gameboy advance. There's also > a small libc using ObjC, libcarm. Everything is hosted here : > http://code.google.com/p/libobjcgbarm , licensed under the GPL version > 2 and WIP. The design is a bit weird though. > > I ventured a bit on the net and found other objc compilers, even > arm-eabi-gcc with objc support. > I wrote some small toy programs in objc and GNUStep for getting > familiar with the APIs, and now have some questions : > > . Is there a roadmap for objc 2.0+ integration in GNUstep or other NS > environments ? > . If I wanted to port GNUstep to GBA, compiler-wise, what do I do then ? > . Is there a place here on this list for objc extension development, > research on OOP or graphics ? > > I would like to contribute to this project to learn more of OOP, I > have some ST experience and want to look into objc++. > I hope you can help me out. > > Best regards, > Johan > > _______________________________________________ > Gnustep-dev mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/gnustep-dev _______________________________________________ Gnustep-dev mailing list [email protected] https://lists.gnu.org/mailman/listinfo/gnustep-dev
