install_object-c.md

apt-get install gnustep
apt-get install gnustep-devel
apt-get install gobjc

vim ~/.cshrc

#set GNUstep
GNUSTEP_ROOT=/usr/share/GNUstep
export GNUSTEP_ROOT
source /usr/share/GNUstep/Makefiles/GNUstep.sh

vim hello.m

#import <Foundation/Foundation.h>
 
int main (int argc, const char * argv[])
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 
        NSLog (@"hello world");
        [pool drain];
        return 0;
}

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

./hello