I can't compile Objective-C in GNUStep with Windows 7

I am trying to compile the following simple Objective-C code in GNUStep with Windows 7.

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[])
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        NSLog (@"hello world");
        [pool drain];
        return 0;
}

I compile it using the following command line:

$ gcc `gnustep-config --objc-flags` -L /GNUstep/System/Library/Libraries hello.m -o hello -lgnustep-base -lobjc

It doesn't compile, and I get the following error:

sh: gcc : command not found

you have to install all the above components then you are good to go u can use foundantion.h