anchor.diff:  , ninja
   
   , curl
  -, krb5_lib
  +, kerberos
   , openssl
   , zlib
   }:
   
   let
  -  rev = "ecf5b85ade59eb942d873aa92adc956c1da89d06";
  -  date = "2018-10-23";
  +  rev = "3b3b492901956c1ba9283261fe395a64b426c174";
  +  date = "2018-12-18";
   in
   stdenv.mkDerivation rec {
     name = "mariadb-connector-c-${date}";
  
positive.code: 
    buildInputs = [
      curl
      krb5_lib
      openssl
      zlib
    ];
  
negative.code:     owner = "MariaDB";
      repo = "mariadb-connector-c";
      inherit rev;
      sha256 = "5ff9bcefeccade699c2edbb30876f056c9a88c82812d72abddcb4a1c8ba196cb";
    };
  
    nativeBuildInputs = [
  