anchor.diff:  { stdenv
   , fetchurl
  +, lib
   
   , bzip2
   , cairo
  
positive.code: }:
  
  let
    inherit (stdenv.lib)
      enFlag;
  in
  
  stdenv.mkDerivation rec {
    name = "librsvg-${version}";
    versionMajor = "2.40";
    versionMinor = "16";
    version = "${versionMajor}.${versionMinor}";
  
    src = fetchurl {
      url = "mirror://gnome/sources/librsvg/${versionMajor}/${name}.tar.xz";
  
negative.code:     "--disable-gtk-doc-html"
      "--disable-gtk-doc-pdf"
      "--disable-tools"
      "--${boolEn (gobject-introspection != null)}-introspection"
      "--${boolEn (vala != null)}-vala"
    ];
  
    # It wants to add loaders and update the loaders.cache in gdk-pixbuf
  