[patch, Ada] GNAT for Mac OS X (Darwin) Tasking Support

[Arnaud Charlet]

> 	* Makefile.in: Added target pairs for powerpc-*-darwin* tasking 
> 	support. 

You're missing a proper version of system, which will undoubtely cause subtle
troubles.

> 	* a-intnam-darwin.ads, s-osinte-darwin.ads, 
> s-osinte-darwin.adb: 
> 	New files. 
> 
> The names of the new files have been recommended by ACT. 

Actually I recommended a-intnam-osx.ads

Is darwin a stable name ? Is it the preferred name ? If so, the proposed
naming is fine with me.

There are problems with your files: you have extra $Revision lines
The copyright is missing 2004
The comments are wrong (mentioning e.g. FSU threads)
Style issues: the preferred style is

type struct_sigaction is record
   ...
end record

rather than

type struct_sigaction is
   record
      ...
   end record;

Arno