Re: OS X Games

[Michael D. Crawford]

There _is_ a project underway to enable one to run OS X binaries under one of 
the BSD's running on PowerPC.  It was mentioned on Slashdot a while back. 
However this project is just beginning and will probably take at least a couple 
years before you could run many OS X applications.

OS X has a dramatically different API for user space applications than either 
linux or BSD.  For example it uses the Carbon API from C/C++ or Cocoa from 
Objective C rather than X11.

User space access to I/O devices is quite different.  You use something called 
the IOKit whose API is based on Microsoft COM.  There is support for Unix-style 
device files for serial and disk I/O, but you still have to use the IOKit to 
find the name of the special file in /dev because the device files are created 
dynamically when the kernel discovers the hardware.

Carbon is a modification of the classic Mac OS API that is redesigned to be 
suitable for a protected-memory operating system.  Cocoa is based on the 
NeXTStep application framework.

There is a project called GnuStep that will allow you to run many Cocoa 
application under X11 in Linux, but it requires a recompile from sources.

(Note that the native compiler for Mac OS X is gcc.  Objective C has been 
compiled with gcc for many years.  Next tried to avoid releasing the sources to 
the objective c compiler but the Free Software Foundation wouldn't let them.)
--
Michael D. Crawford
GoingWare Inc. - Expert Software Development and Consulting
http://www.goingware.com/
[EMAIL PROTECTED]

     Tilting at Windmills for a Better Tomorrow.

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