anchor.diff:      numactl
       openssl
       pam
  -    pcre
  +    #pcre
       snappy
       systemd_lib
       xz
  
positive.code:     "-DWITH_READLINE=ON"
      "-DWITH_ZLIB=system"
      "-DWITH_SSL=system"
      "-DWITH_PCRE=system"
      "-DWITH_LIBARCHIVE=ON"
      "-DWITH_EXTRA_CHARSETS=complex"
      "-DWITH_EMBEDDED_SERVER=ON"
  
negative.code: }:
  
  stdenv.mkDerivation rec {
    name = "mariadb-10.2.10";
  
    src = fetchurl {
      url = "mirror://mariadb/${name}/source/${name}.tar.gz";
      hashOutput = false;
      sha256 = "5c7b83c4d2f7501ef9f187d8c97688a24fd3e53dc43bb388f8e1cead61a92fc2";
    };
  
    nativeBuildInputs = [
  