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:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        pgpsigUrls = map (n: "${n}.asc") tarballUrls;
        pgpDecompress = true;
        inherit (samba_full.pgp.library) pgpKeyFingerprint;
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
  
negative.code:   src = fetchurl {
      urls = map (n: "${n}.gz") tarballUrls;
      hashOutput = false;
      sha256 = "232e54b87c53210a6861424ad411b04dbfa0f2ca4bc463aefea188158e0cc963";
    };
  
    nativeBuildInputs = [
  