anchor.diff:  
     src = fetchurl {
       url = "http://www.broadcom.com/docs/linux_sta/${tarball}";
  -    sha256 = hashes.${stdenv.system};
  +    sha256 = hashes."${stdenv.system}";
     };
   
     hardeningDisable = [ "pic" ];
  
positive.code:     ./linux-4.7.patch
      ./null-pointer-fix.patch
      ./gcc.patch
    ];
  
    makeFlags = "KBASE=${kernel.dev}/lib/modules/${kernel.modDirVersion}";
  
negative.code: { stdenv, fetchurl, fetchpatch, kernel }:
  
  let
    version = "6.30.223.271";
  