ubuntu下objective-c的编译和运行

sudo aptitude install build-essential gobjc gobjc++ gnustep gnustep-devel libgnustep-base-dev -y

pp:$(s)
        gcc `gnustep-config --objc-flags` $(s) -o app -lgnustep-base -lobjc
clean:
        rm *.d
        rm app

1 #import <Foundation/Foundation.h>
2 
3 int main(int argc, const char* argv[])
4 {
5         NSLog(@"Hello world!");
6         return 0;
7 }

$ make s=main.m
gcc `gnustep-config --objc-flags` main.m -o app -lgnustep-base -lobjc

$ ./app
2015-11-30 21:56:31.137 app[17597] Hello world!

make clean