Added $(top_builddir)/config.status dependencies to all x??f.f files.  This means that whenever cofigure is run, the x??f.f files will be generated from the x??f.fm4 sources.  This is a brute-force approach to the case where PLplot is reconfigured with a chnge in the double precision option.
Added $(top_builddir)/config.status dependencies to all x??f.f files.  This
means that whenever cofigure is run, the x??f.f files will be generated from
the x??f.fm4 sources.  This is a brute-force approach to the case where
PLplot is reconfigured with a chnge in the double precision option.

svn path=/trunk/; revision=5415

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