anchor.diff:      keyutils
       libX11
       libcanberra-gtk3
  +    libgudev
       libselinux
       pam
       plymouth
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "gdm";
    version = "41.3";
  
    outputs = [ "out" "dev" ];
  
    src = fetchurl {
      url = "mirror://gnome/sources/gdm/${lib.versions.major version}/${pname}-${version}.tar.xz";
      sha256 = "uwtlCnzqkPCaMyhPvQKXUxVAfvwY6BQAmFLRvK00N9Q=";
    };
  
    mesonFlags = [
  
negative.code: , gtk3
  , libcanberra-gtk3
  , pam
  , libgudev
  , libselinux
  , keyutils
  , audit
  