anchor.diff:  }:
   
   let
  -  version = "2.3.3";
  +  version = "2.4.0";
   in
   stdenv.mkDerivation rec {
     name = "libseccomp-${version}";
  
positive.code:   passthru = {
      srcVerification = fetchurl rec {
        failEarly = true;
        sha256Urls = map (n: "${n}.SHA256SUM.asc") src.urls;
        pgpKeyFingerprint = "7100 AADF AE6E 6E94 0D2E  0AD6 55E4 5A5A E8CA 7C8A";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
  
negative.code:   src = fetchurl {
      url = "https://github.com/seccomp/libseccomp/releases/download/v${version}/${name}.tar.gz";
      hashOutput = false;
      sha256 = "2e74c7e8b54b340ad5d472e59286c6758e1e1e96c6b43c3dbdc8ddafbf0e525d";
    };
  
    buildInputs = [
  