anchor.diff:  }:
   
   let
  -  # 1.4.1 breaks samba 4.8.x
  -  name = "ldb-1.4.0";
  +  name = "ldb-1.5.1";
   
     tarballUrls = [
       "mirror://samba/ldb/${name}.tar"
  
positive.code:   src = fetchurl {
      urls = map (n: "${n}.gz") tarballUrls;
      hashOutput = false;
      sha256 = "a87edaa35a33a76006a7ccd30f326514db78ac235b3a257402441349bc0da9b4";
    };
  
    nativeBuildInputs = [
  
negative.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        inherit (src)
          urls
          outputHash
          outputHashAlgo;
        fullOpts = {
          pgpsigUrls = map (n: "${n}.asc") tarballUrls;
          pgpDecompress = true;
          inherit (samba_full.pgp.library)
            pgpKeyFingerprint;
        };
      };
    };
  
  