🚀 go-pugleaf

I am having a problem compiling some Objective-C code on a NeXT
running NeXTStep 3.0. I hope I am doing something stuid. What follows
is a snippet of the code followed by the error. Any help at all would
be appreciated.

				Reggie

/* Protocol support */

@class Protocol;

struct objc_protocol_list {
	struct objc_protocol_list *next;
	int count;
	Protocol *list[1];
};

/NextDeveloper/Headers/objc/objc-class.h:77: invalid Objective C keyword `@class'
/NextDeveloper/Headers/objc/objc-class.h:77: parse error before `@class'
/NextDeveloper/Headers/objc/objc-class.h:82: parse error before `Protocol'
/NextDeveloper/Headers/objc/objc-class.h:82: warning: no semicolon at end of struct or union
-----------------------------------------------------------------------------
#ifdef __GNUC__
#ifndef __STRICT_ANSI__
__volatile	/* never returns */
#endif /* not __STRICT_ANSI__ */
#endif /* __GNUC__ */
extern void _NXRaiseError(int code, const void *data1, const void *data2);

/NextDeveloper/Headers/objc/error.h:81: warning: `extern' is not at beginning of declaration
-------------------------------------------------------------------------------
#import <objc/typedstream.h>
#import <objc/zone.h>
@class Protocol;

/NextDeveloper/Headers/objc/Object.h:17: invalid Objective C keyword `@class'
/NextDeveloper/Headers/objc/Object.h:17: parse error before `@class'
-----------------------------------------------------------------------------
- (BOOL) conformsTo: (Protocol *)aProtocolObject;
+ (BOOL) conformsTo: (Protocol *)aProtocolObject;

/NextDeveloper/Headers/objc/Object.h:69: parse error before `Protocol'
/NextDeveloper/Headers/objc/Object.h:70: parse error before `Protocol'
--------------------------------------------------------------------------

@protocol NXEncoding
// encode an objc (parameter) type
- encodeData:(void *)data ofType:(const char *)type;


/NextDeveloper/Headers/remote/transport.h:13: invalid Objective C keyword `@protocol'
/NextDeveloper/Headers/remote/transport.h:13: parse error before `@protocol'
/NextDeveloper/Headers/remote/transport.h:18: method definition not in class context