problem in compiling in windows

[ychong7]

Hi,

 

I am new to Objective C.  I tried compiling the problem below and got the error message.  I am using MINGW32

 

" hello.m:1:25: objc/object.h: No such file or directory

   hello.m6: error: cannot find interface declaration for 'Object, superclass of 'Hello'

 

 

THks

 

########

 

Problem Example

 

#include <objc/object.h>
#include <stdio.h>

@interface Hello : Object
{ }
+ world;
@end

@implementation Hello
+ world
{
  puts("Hello world !");
}
@end

main()
{
  [Hello world];
}