anchor.diff:    passthru = {
       srcVerification = fetchurl rec {
         failEarly = true;
  -      urls = tarballUrls "1.14";
  +      urls = tarballUrls "1.14.1";
         pgpsigUrls = map (n: "${n}.sig") urls;
         pgpKeyFingerprint = "325F 650C 4C2B 6AD5 8807  327A 3602 B07F 55D0 C732";
         inherit (src) outputHashAlgo;
  -      outputHash = "ada1437a4165a707b3e9f37b5b74dbbe7c2f8bde633b8c2c7dbc8f84f39baa09";
  +      outputHash = "cdceff00ffe014495bed3aed71c7910aa88bf29379f795abc0f46d4ee5f8bc5f";
       };
     };
   
  
positive.code: }:
  
  let
    version = "1.14";
  
    tarballUrls = version: [
      "mirror://gnu/gdbm/gdbm-${version}.tar.gz"
  
negative.code:   src = fetchurl {
      urls = tarballUrls version;
      hashOutput = false;
      sha256 = "cdceff00ffe014495bed3aed71c7910aa88bf29379f795abc0f46d4ee5f8bc5f";
    };
  
    buildInputs = [
  