Added and OS-X specific fix so that python would be linked with the proper libraries.
Added and OS-X specific fix so that python would be linked with the proper libraries.

svn path=/trunk/; revision=7023

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