anchor.diff:      ${glib.dev}/bin/glib-compile-schemas "$out/share/glib-2.0/schemas"
     '';
   
  +  postFixup = ''
  +    # Cannot be in postInstall, otherwise _multioutDocs hook in preFixup will move right back.
  +    # TODO: Move this into a directory devhelp can find.
  +    moveToOutput "share/mutter-11/doc" "$devdoc"
  +  '';
  +
     # Install udev files into our own tree.
     PKG_CONFIG_UDEV_UDEVDIR = "${placeholder "out"}/lib/udev";
   
  
positive.code:   pname = "mutter";
    version = "43.beta";
  
    outputs = [ "out" "dev" "man" ];
  
    src = fetchurl {
      url = "mirror://gnome/sources/mutter/${lib.versions.major version}/${pname}-${version}.tar.xz";
  
negative.code: , xorgserver
  , python3
  , wrapGAppsHook
  , gi-docgen
  , sysprof
  , libsysprof-capture
  , desktop-file-utils
  