GCC configured for ObjC...but can't do it?!

[Kevin Ingwersen]

Hey!

I finally got to compile gcc-4.8.2 with objc and objc++ enabled. Now, I tried to compile a test programm:

#import <Foundation/Foundation.h>
#include <stdio.h>
@interface Test : NSObject {
	int foo;
}
- (void)SayHi;
@end

@implementation Test
- (void)SayHi {
	printf("You made it into objc.");
}
@end

int main(void) {
	Test *iTest;
	iTest = [[Test alloc] init];
	[iTest SayHi];
}

And this is what I get:

root@Ingwies-Air ~/Work/objc $ gcc -framework Foundation test2.m
In file included from /usr/include/os/object.h:74:0,
                 from /usr/include/dispatch/dispatch.h:48,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/objc/NSObject.h:21:26: error: expected ‘;’ before ‘OBJC_ARC_UNAVAILABLE’
 - (struct _NSZone *)zone OBJC_ARC_UNAVAILABLE;
                          ^
/usr/include/objc/NSObject.h:35:14: error: expected ‘;’ before ‘OBJC_ARC_UNAVAILABLE’
 - (id)retain OBJC_ARC_UNAVAILABLE;
              ^
/usr/include/objc/NSObject.h:36:24: error: expected ‘;’ before ‘OBJC_ARC_UNAVAILABLE’
 - (oneway void)release OBJC_ARC_UNAVAILABLE;
                        ^
/usr/include/objc/NSObject.h:37:19: error: expected ‘;’ before ‘OBJC_ARC_UNAVAILABLE’
 - (id)autorelease OBJC_ARC_UNAVAILABLE;
                   ^
/usr/include/objc/NSObject.h:38:27: error: expected ‘;’ before ‘OBJC_ARC_UNAVAILABLE’
 - (NSUInteger)retainCount OBJC_ARC_UNAVAILABLE;
                           ^
/usr/include/objc/NSObject.h:48:1: error: unknown type name ‘OBJC_ROOT_CLASS’
 OBJC_ROOT_CLASS
 ^
/usr/include/objc/NSObject.h:50:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘interface’
 @interface NSObject <NSObject> {
 ^
/usr/include/objc/NSObject.h:69:63: error: expected ‘:’ before ‘;’ token
 + (id)copyWithZone:(struct _NSZone *)zone OBJC_ARC_UNAVAILABLE;
                                                               ^
In file included from /usr/include/dispatch/dispatch.h:50:0,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/dispatch/object.h:249:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t finalizer);
  ^
In file included from /usr/include/dispatch/dispatch.h:52:0,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/dispatch/queue.h:180:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
/usr/include/dispatch/queue.h:246:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
/usr/include/dispatch/queue.h:651:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
/usr/include/dispatch/queue.h:731:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
/usr/include/dispatch/queue.h:790:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
/usr/include/dispatch/queue.h:832:17: error: unknown type name ‘dispatch_function_t’
  void *context, dispatch_function_t destructor);
                 ^
In file included from /usr/include/dispatch/dispatch.h:53:0,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/dispatch/source.h:405:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t handler);
  ^
/usr/include/dispatch/source.h:464:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t cancel_handler);
  ^
/usr/include/dispatch/source.h:739:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t registration_handler);
  ^
In file included from /usr/include/dispatch/dispatch.h:54:0,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/dispatch/group.h:123:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
/usr/include/dispatch/group.h:233:2: error: unknown type name ‘dispatch_function_t’
  dispatch_function_t work);
  ^
In file included from /usr/include/dispatch/dispatch.h:56:0,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/dispatch/once.h:79:3: error: unknown type name ‘dispatch_function_t’
   dispatch_function_t function);
   ^
/usr/include/dispatch/once.h:85:3: error: unknown type name ‘dispatch_function_t’
   dispatch_function_t function)
   ^
In file included from /usr/include/dispatch/dispatch.h:57:0,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:15,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:13,
                 from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:55,
                 from /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6,
                 from test2.m:1:
/usr/include/dispatch/data.h:85:1: error: unknown type name ‘dispatch_function_t’
 DISPATCH_DATA_DESTRUCTOR_TYPE_DECL(free);
 ^
/usr/include/dispatch/data.h:94:1: error: unknown type name ‘dispatch_function_t’
 DISPATCH_DATA_DESTRUCTOR_TYPE_DECL(munmap);
 ^

…solutions? o.o;

Kind regards, Ingwie