Tried to use this file to configure *.pc files, but was stopped by variable scope in CMake so that various library builds could not communicate their information with this subdirectory.  Thus, changed over to configuring and installing *.pc files from same directory where library is built.
Tried to use this file to configure *.pc files, but was stopped by variable
scope in CMake so that various library builds could not communicate their
information with this subdirectory.  Thus, changed over to configuring and
installing *.pc files from same directory where library is built.

Net Result: This change degenerates into a commentary tweak.

svn path=/trunk/; revision=6763

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