anchor.diff:      cyrus-sasl
       gperftools
       #icu
  -    libbson
       libpcap
       mongo-c-driver
       openssl
  
positive.code: 
    src = fetchurl {
      url = "https://downloads.mongodb.org/src/mongodb-src-r${version}.tar.gz";
      sha256 = "df2d5c05c569ca93eacf88b68e0feb3ff52ffbfc8ccd8736ff20d86850db207c";
    };
  
    nativeBuildInputs = [
  
negative.code: , cyrus-sasl
  , gperftools
  , icu
  , libpcap
  , mongo-c-driver
  , openssl
  