GNUstep on OS X / Darwin

[Markus Hitter]

Hello all,

today GNUstep base compiled successfully on my OS X box. Find 
below the patch to make it work. Hopefully, I didn't introduce 
any incompatibility with other OS's. Could somebody please check 
this, especially on Darwin and for the current compiler. I'm 
using gcc 3.1 as described in earlier mails.

The stuff in Testing/ compiles in big parts, but does not link 
yet. I'm investigating.


Have fun,
Markus


Index: Headers/gnustep/base/NSString.h
===================================================================
RCS file: 
/cvsroot/gnustep/gnustep/core/base/Headers/gnustep/base/NSString.h,v
retrieving revision 1.65
diff -r1.65 NSString.h
331a332,341
> #ifdef __APPLE__ && __GCC__ >= 3
>   /* Up to gcc 2.95.2 the compiler slipped these two in automatically.
>        With the advent of ObjC++ this is no longer possible (?).
>        There is no Apple modified gcc between 2.95.2 and 3.1.
>        This info ia as of 2002-03-04 and regarding the experimental
>        Apple gcc 3.1. Markus Hitter, mah@jump-ing.de */
>   char *cString;
>   unsigned int len;
> #endif
>
340,341c350,352
< #if NeXT_RUNTIME
< /* For internal use with NeXT runtime. */
---
> #ifdef NeXT_RUNTIME
> /* For internal use with NeXT runtime;
>    needed, until Apple Radar 2870817 is fixed. */
Index: Source/GSString.m
===================================================================
RCS file: /cvsroot/gnustep/gnustep/core/base/Source/GSString.m,v
retrieving revision 1.42
diff -r1.42 GSString.m
55c55,57
< /* Used by the Darwin/NeXT ObjC Runtime */
---
> #ifdef NeXT_RUNTIME
> /* Used by the Darwin/NeXT ObjC Runtime
>    until Apple Radar 2870817 is fixed. */
56a59
> #endif
3327,3329d3329
< #if NeXT_RUNTIME
<       struct objc_class *ref = self;
< #endif
3331,3337d3330
<
< #if NeXT_RUNTIME
<       /* Set up a structure to represent the constant string 
class. All constant strings point to
<          this structure.
<       */
<       _NSConstantStringClassReference = *ref;
< #endif
Index: Source/NSProcessInfo.m
===================================================================
RCS file: /cvsroot/gnustep/gnustep/core/base/Source/NSProcessInfo.m,v
retrieving revision 1.71
diff -r1.71 NSProcessInfo.m
502a503,510
> #ifdef NeXT_RUNTIME
>   /* This memcpy has to be done before the first message is 
sent to any
>      constant string object. See Apple Radar 2870817 */
>   memcpy(&_NSConstantStringClassReference,
>          objc_getClass("NSConstantString"),
>          sizeof(_NSConstantStringClassReference));
> #endif
>