anchor.diff:  }:
   
   let
  -  inherit (stdenv.lib)
  -    enFlag;
  +  inherit (lib)
  +    boolEn;
  +
  +  versionMajor = "0.17";
  +  versionMinor = "7";
  +  version = "${versionMajor}.${versionMinor}";
   in
   stdenv.mkDerivation rec {
     name = "libgdata-${version}";
  -  versionMajor = "0.17";
  -  versionMinor = "6";
  -  version = "${versionMajor}.${versionMinor}";
   
     src = fetchurl {
       url = "mirror://gnome/sources/libgdata/${versionMajor}/${name}.tar.xz";
  -    sha256 = "8b6a3ff1db23bd9e5ebbcc958b29b769a898f892eed4798222d562ba69df30b0";
  +    hashOutput = false;
  +    sha256 = "8a663ef314a6d20b73c762072e0c1353fa7ec1ca3c2dee6fb85927cbda0d44fd";
     };
   
     nativeBuildInputs = [
  
positive.code:     platforms = with platforms;
        x86_64-linux;
    };
  
  }
  
negative.code:   configureFlags = [
      "--enable-gnome"
      # Remove dependency on webkit
      #"--${boolEn (gnome-online-accounts != null)}-goa"
      "--disable-goa"
      "--disable-always-build-tests"
      "--disable-installed-tests"
  