anchor.diff:      buildInputs = [ openssl zlib snappy lzo ];
   
       # prevent failing with "cmake-3.13.4/nix-support/setup-hook: line 10: ./3rdParty/rocksdb/RocksDBConfig.cmake.in: No such file or directory"
  -    dontFixCmake       =                     lib.versionAtLeast version "3.5";
  +    dontFixCmake = lib.versionAtLeast version "3.5";
       NIX_CFLAGS_COMPILE = lib.optionalString (lib.versionAtLeast version "3.5") "-Wno-error";
  -    preConfigure       = lib.optionalString (lib.versionAtLeast version "3.5") "patchShebangs utils";
  +    preConfigure = lib.optionalString (lib.versionAtLeast version "3.5") "patchShebangs utils";
   
       postPatch = ''
         ${if lib.versionAtLeast version "3.9"
  
positive.code: { stdenv, lib, fetchFromGitHub, openssl, zlib, cmake, python2, python3, perl, snappy, lzo, which, catch2, catch }:
  
  let
    common = { stdenv, version, sha256 }: stdenv.mkDerivation {
  
negative.code:       maintainers = [ maintainers.flosse maintainers.jsoo1 ];
      };
    };
  in
  {
    arangodb_3_3 = common {
      stdenv = gcc8Stdenv;
      version = "3.3.24";
  