Always set the special PLD_psc and PLD_psttfc variables so they are always available to configure the installed examples build.
Always set the special PLD_psc and PLD_psttfc variables so they are
always available to configure the installed examples build.

svn path=/trunk/; revision=10436

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