anchor.diff:      boolEn;
   
     versionMajor = "2.40";
  -  versionMinor = "16";
  +  versionMinor = "17";
     version = "${versionMajor}.${versionMinor}";
   in
   stdenv.mkDerivation rec {
  
positive.code:       -e "s#\$(GDK_PIXBUF_QUERYLOADERS)#GDK_PIXBUF_MODULEDIR=$GDK_PIXBUF/loaders \$(GDK_PIXBUF_QUERYLOADERS)#"
    '';
  
    meta = with lib; {
      description = "Scalable Vector Graphics (SVG) rendering library";
      homepage = https://wiki.gnome.org/Projects/LibRsvg;
  
negative.code: 
    src = fetchurl {
      url = "mirror://gnome/sources/librsvg/${versionMajor}/${name}.tar.xz";
      hashOutput = false;
      sha256 = "e6f6c5cbecc405bb945c7cd15061276035ae3173bbb3bb25e8a916779c7f69cc";
    };
  
    buildInputs = [
  