anchor.diff:      "--disable-gtk-doc-pdf"
       "--disable-tools"
       "--${boolEn (gobject-introspection != null)}-introspection"
  -    "--${boolEn (vala != null)}-vala"
  +    "--disable-vala"
     ];
   
     # It wants to add loaders and update the loaders.cache in gdk-pixbuf
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        sha256Url = "https://download.gnome.org/sources/librsvg/2.40/${name}.sha256sum";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
negative.code:     libgsf
      libxml2
      pango
    ];
  
    configureFlags = [
  