Ubuntu14.04 Objective-C hello world

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sudo apt-get install gnustep gnustep-devel

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#import <Foundation/Foundation.h>

int main (int
argc, const
char * argv[])

{

        NSAutoreleasePool
* pool = [[NSAutoreleasePool
alloc] init];

        NSLog
(@"hello world");

        [pool drain];

        return
0;

}

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. /usr/share/GNUstep/Makefiles/GNUstep.sh

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gcc hello.m `gnustep-config --objc-flags` `gnustep-config --objc-libs` -lobjc -lgnustep-base -o hello