anchor.diff:  { stdenv
  -, autoconf
  -, automake
  -, fetchFromGitHub
  -, libtool
  +, fetchurl
   
   , bzip2
   , db
  
positive.code:     lz4
      snappy
      zlib
    ];
  
    preConfigure = ''
      ./autogen.sh
    '';
  
    configureFlags = [
      "--enable-leveldb"
      "--enable-tcmalloc"
      "--with-builtins=lz4,snappy,zlib"
      "--with-berkeleydb=${db}"
      "--without-helium"
    ];
  
negative.code: , lz4
  , snappy
  , zlib
  , zstd
  }:
  
  let
    version = "2.9.0";
  in
  stdenv.mkDerivation rec {
    name = "wiredtiger-${version}";
  
    src = fetchurl {
      url = "https://github.com/wiredtiger/wiredtiger/releases/download/${version}/${name}.tar.bz2";
      sha256 = "bdbd14753f704a2d7ffc7d132548ca8d2d29938821df747712165699c18c587e";
    };
  
    buildInputs = [
      bzip2
  