anchor.diff:  , glib
   , gnutls
   , gpm
  -, gtk3
  +, gtk_3
  +, libice
   , libjpeg
   , libpng
   , librsvg
  +, libsm
   , libtiff
  +, libx11
  +, libxcb
  +, libxft
  +, libxfixes
  +, libxinerama
   , libxml2
  +#, libxpm
  +, libxrandr
  +, libxrender
   , ncurses
   , xorg
   , zlib
  
positive.code:   # FIXME
    buildDirCheck = false;
  
    meta = with stdenv.lib; {
      description = "GNU Emacs 24, the extensible, customizable text editor";
      homepage = http://www.gnu.org/software/emacs/;
      license = licenses.gpl3Plus;
  
negative.code:     glib
      gnutls
      gpm
      gtk_3
      libice
      libjpeg
      libpng
      librsvg
      libsm
      libtiff
      libx11
      libxcb
      libxft
      libxfixes
      libxinerama
      libxml2
      #libxpm
      xorg.libXpm
      libxrandr
      libxrender
      ncurses
      xorgproto
      zlib
    ];
  
  