Use target_link_libraries to link libplplotdmd with libplot.
Use target_link_libraries to link libplplotdmd with libplot.

Configure plplotd-d.pc to handle linking of libplplotdmd.

svn path=/trunk/; revision=9986

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