Play Objective-c with GNUstep in windows

Use NS (NeXtStep) Object in source.m, like:

NSString *hello = @"Hello World!";//a NS string object

creat a file in the folder where source.m at,named "GNUmakefile" with code:

include $(GNUSTEP_MAKEFILES)/common.make
TOOL_NAME = appname
appname_OBJC_FILES = source.m
include $(GNUSTEP_MAKEFILES)/tool.make

- in console -

compile with command : make

run the app with command: ./obj/appname

source.m

#include<stdio.h>
#include<Foundation/Foundation.h>
int main(void){
NSString *helloString = @"Hello World!";
printf("%s/n",[helloString cString]);
return 0;
}

get info = > Hello World!