anchor.diff:  
         export modulePaths=
         for i in $(find ${toString modules} -type d); do
  -        if ls $i/*.so 2> /dev/null; then
  +        if ls $i/*.so* > /dev/null 2>&1; then
             modulePaths="''${modulePaths}ModulePath \"$i\"''\n"
           fi
         done
  
positive.code:     env SLIM_THEMESDIR=${slimThemesDir}
      env FONTCONFIG_FILE=/etc/fonts/fonts.conf # !!! cleanup
      env XKB_BINDIR=${xorg.xkbcomp}/bin # Needed for the Xkb extension.
      env LD_LIBRARY_PATH=${xorg.libX11}/lib:${xorg.libXext}/lib:/usr/lib/ # related to xorg-sys-opengl - needed to load libglx for (AI)GLX support (for compiz)
  
      ${if videoDriver == "nvidia"
        then "env XORG_DRI_DRIVER_PATH=${pkgs.nvidiaDrivers}/X11R6/lib/modules/drivers/"
      else if cfg.driSupport
        then "env XORG_DRI_DRIVER_PATH=${pkgs.mesa}/lib/modules/dri"
        else ""
      } 
  
      exec ${pkgs.slim}/bin/slim
    '';
  
negative.code: 
      
    modules = 
      optional (videoDriver == "nvidia") pkgs.nvidiaDrivers #make sure it first loads the nvidia libs
      ++ [
        xorg.xorgserver
        xorg.xf86inputkeyboard
        xorg.xf86inputmouse
  