Rework both the HAVE_PTHREAD and Tk announcements in light of Andrew's recent fix for the combination of HAVE_PTHREAD=ON and Tk-related components of PLplot enabled.
Rework both the HAVE_PTHREAD and Tk announcements in light of Andrew's
recent fix for the combination of HAVE_PTHREAD=ON and Tk-related components
of PLplot enabled.


svn path=/trunk/; revision=9871

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