anchor.diff:      homepage = https://github.com/elves/elvish;
       license = licenses.bsd2;
       maintainers = with maintainers; [ vrthra ];
  -    platforms = with platforms; linux;
  +    platforms = with platforms; linux ++ darwin;
     };
   }
  
positive.code:     repo = "elvish";
      owner = "elves";
      rev = version;
      sha256 = "0alsv04iihrk1nffp6fmyzxid26dqhg1k45957c2ymyzyq9cglxj";
    };
  
    meta = with stdenv.lib; {
  
negative.code: 
  buildGoPackage rec {
    name = "elvish-${version}";
    version = "0.10";
  
    postInstall = stdenv.lib.optionalString (stdenv.isDarwin) ''
      install_name_tool -delete_rpath $out/lib $bin/bin/elvish
    '';
  
    goPackagePath = "github.com/elves/elvish";
  
  