anchor.diff:        platforms = stdenv.lib.platforms.all;
       };
     };
  -  
  +
   }
  
positive.code: 
  let
  
    version = "1.8.10";
    
    src = fetchurl {
      url = "mirror://sourceforge/zabbix/zabbix-${version}.tar.gz";
      sha256 = "0jx5i1ps1zr908g8gh1zisajiblg40x8cchmgbpdviz85hzx4rfr";
    };
  
    preConfigure =
  
negative.code:       platforms = stdenv.lib.platforms.linux;
      };
    };
  
    agent = stdenv.mkDerivation {
      name = "zabbix-agent-${version}";
  
  