This was configure.in from the AT branch.  But that file was in the attic (i.e., long ago deleted on MAIN) so there was a name clash, and that file name cannot be used any more.  Fortunately, configure.ac is also an acceptable name for autoconf to understand, so that is what we will use from now on.
This was configure.in from the AT branch.  But that file was in the attic
(i.e., long ago deleted on MAIN) so there was a name clash, and that
file name cannot be used any more.  Fortunately, configure.ac is also
an acceptable name for autoconf to understand, so that is what we will
use from now on.

svn path=/trunk/; revision=4104

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