anchor.diff:  , which
   }:
   
  -stdenv.mkDerivation rec {
  +gcc10Stdenv.mkDerivation rec {
     pname = "arangodb";
     version = "3.9.3";
   
  
positive.code: { stdenv
  , lib
  , fetchFromGitHub
  , openssl
  
negative.code: 
    cmakeFlags = [
      # avoid using builder's /proc/cpuinfo
      "-DHAVE_SSE42=${if gcc10Stdenv.hostPlatform.sse4_2Support then "ON" else "OFF"}"
      "-DASM_OPTIMIZATIONS=${if gcc10Stdenv.hostPlatform.sse4_2Support then "ON" else "OFF"}"
    ];
  
    enableParallelBuilding = true;
  