anchor.diff:  
     meta = with stdenv.lib; {
       description = "Objects and helper methods to read and write AppStream metadata";
  -    homepage = https://people.freedesktop.org/~hughsient/appstream-glib/;
  +    homepage = "https://people.freedesktop.org/~hughsient/appstream-glib/";
       license = licenses.lgpl2Plus;
       platforms = platforms.unix;
       maintainers = with maintainers; [ lethalman matthewbauer ];
  
positive.code: , pngquant
  }:
  stdenv.mkDerivation rec {
    name = "appstream-glib-0.7.16";
  
    outputs = [ "out" "dev" "man" "installedTests" ];
    outputBin = "dev";
  
negative.code:     owner = "hughsie";
      repo = "appstream-glib";
      rev = stdenv.lib.replaceStrings [ "." "-" ] [ "_" "_" ] name;
      sha256 = "06pm8l58y0ladimyckbvlslr5bjj9rwb70rgjmn09l41pdpipy2i";
    };
  
    nativeBuildInputs = [
  