anchor.diff:    src = fetchurl {
       urls = map (n: "${n}.gz") (tarballUrls version);
       hashOutput = false;
  -    sha256 = "a4f519b0bbb718fe2175bee9011ee4d199675f28c2ef80531be38e7bbaa1c42b";
  +    sha256 = "4a13f2256ad804c860e84068258bd0f8be31cf0c79aa8f3019fa32f6928c2bfc";
     };
   
     nativeBuildInputs = [
  
positive.code:       pgpDecompress = true;
        inherit (samba_full.pgp.library) pgpKeyFingerprint;
        inherit (src) outputHashAlgo;
        outputHash = "a4f519b0bbb718fe2175bee9011ee4d199675f28c2ef80531be38e7bbaa1c42b";
      };
    };
  
  
negative.code: }:
  
  let
    version = "0.9.31";
    newVersion = "0.9.31";
  
    tarballUrls = version: [
      "mirror://samba/tevent/tevent-${version}.tar"
  