anchor.diff:    };
   
     postInstall = substituteAll {
  -    name = "hylafaxplus-post-install.sh";
  +    name = "${pname}-post-install.sh";
       src = ./post-install.sh;
       inherit fakeroot libfaketime;
     };
  
positive.code: in
  
  stdenv.mkDerivation {
    inherit name version;
    src = fetchurl {
      url = "mirror://sourceforge/hylafax/hylafax-${version}.tar.gz";
      inherit sha256;
  
negative.code:   };
  
    postPatch = substituteAll {
      name = "${pname}-post-patch.sh";
      src = ./post-patch.sh;
      inherit configSite;
      maxuid = lib.optionalString (maxuid!=null) (builtins.toString maxuid);
  