llvm gcc vs. Apple LLVM 3.0 (clang)

gistfile1.txt

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (
#ifdef __clang__
           strong,
#endif
           nonatomic) UIWindow *window;

@end

#import <UIKit/UIKit.h>

#import "AppDelegate.h"

int main(int argc, char *argv[])
{
#ifdef __clang__
    @autoreleasepool {
#endif
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
#ifdef __clang__
    }
#endif
}


@property (
#ifdef __clang__
           strong, 
#endif
           nonatomic) EAGLContext *context;