$(driverlibs) fix for ntk and gnome drivers as well.
$(driverlibs) fix for ntk and gnome drivers as well.

svn path=/trunk/; revision=3326

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot