Заполнение чисел в GNU Makefiles

// Yes.  Here is sample code (tested on OS X 10.8.4, command-line).
// Using ARC:
// $ cc -o timer timer.m -fobjc-arc -framework Foundation
// $ ./timer
//

#include <Foundation/Foundation.h>

@interface MyClass : NSObject
@property NSTimer *timer;
-(id)init;
-(void)onTick:(NSTimer *)aTimer;
@end

@implementation MyClass
-(id)init {
    id newInstance = [super init];
    if (newInstance) {
        NSLog(@"Creating timer...");
        _timer = [NSTimer scheduledTimerWithTimeInterval:1.0
            target:self
            selector:@selector(onTick:)
            userInfo:nil
            repeats:YES];
    }
    return newInstance;
}

-(void)onTick:(NSTimer *)aTimer {
    NSLog(@"Tick");
}
@end

int main() {
    @autoreleasepool {
        MyClass *obj = [[MyClass alloc] init];
        [[NSRunLoop currentRunLoop] run];
    }
    return 0;
}