anchor.diff:      buildInputs = [ hicolor-icon-theme ];
       configureFlags = [ "--enable-maintainer-mode" ];
   
  -    src = fetchgit {
  -      url = "git://git.xfce.org/${category}/${pname}";
  +    src = fetchFromGitLab {
  +      domain = "gitlab.xfce.org";
  +      owner = category;
  +      repo = pname;
         inherit rev sha256;
       };
   
  
positive.code: 
      passthru.updateScript = xfce.updateScript {
        inherit pname version attrPath rev-prefix odd-unstable patchlevel-unstable;
        versionLister = xfce.gitLister src.url;
      };
  
      meta = with stdenv.lib; {
        homepage = "https://git.xfce.org/${category}/${pname}/about";
        license = licenses.gpl2; # some libraries are under LGPLv2+
        platforms = platforms.linux;
      };
  
negative.code: { stdenv, fetchFromGitLab, pkgconfig, xfce4-dev-tools, hicolor-icon-theme, xfce, wrapGAppsHook }:
  
  { category
  , pname
  