anchor.diff:      "--${boolEn (rest != null && json-glib != null)}-cloudprint"
       "--${boolEn (cups != null)}-test-print-backend"
       "--enable-schemas-compile"
  -    "--${boolEn (gobject-introspection != null)}-introspection"
  -    "--${boolEn (colord != null)}-colord"
  +    "--enable-introspection"
  +    "--enable-colord"
       "--disable-gtk-doc"
       "--disable-gtk-doc-html"
       "--disable-gtk-doc-pdf"
       "--disable-man"
       "--disable-doc-cross-references"
       "--enable-Bsymbolic"
  -    "--${boolWt (libx11 != null)}-x"
  +    "--${boolWt x11_backend}-x"
     ];
   
     postInstall = "rm -rvf $out/share/gtk-doc";
  
positive.code:     inputproto
      json-glib
      libepoxy
      libice
      libsm
      libx11
      libxcomposite
      libxdamage
      libxext
      libxfixes
      libxinerama
      libxkbcommon
      libxrandr
      libxrender
      mesa_noglu
      pango
      rest
      shared-mime-info
      wayland
      wayland-protocols
      xproto
    ] ++ optionals (libx11 != null) [
      xorg.libXcursor
      xorg.libXi
    ];
  
    configureFlags = [
  
negative.code: 
    broadway_backend = true;
    wayland_backend =
      opengl-dummy.egl && wayland != null && wayland-protocols != null;
    x11_backend = opengl-dummy.glx && libx11 != null;
  
    sources = {
      "3.22" = {
  