Commented out some code in the block that sets up softlinks when Tk is enabled.  This was pathalogical.  What happened is that it cd'd to somewhere, then back to "$srcdir/tmp".  But configure isn't always run in $srcdir/tmp, it can be run from anywhere.  So in such cases, where configure is run from somewhere other than $srcdir/tmp, what was happening was that soft links were getting set up in the right place, but then if Tk was enabled we were cd'ing back to $srcdir/tmp, and dumping all the configure-generated files there.  This wipes out the Makefiles and other config settings in $srcdir/tmp, but also means the real dir being configured is left unconfigured.  So it was ineffective in the right place, and destructive in the wrong place.
Commented out some code in the block that sets up softlinks when Tk is
enabled.  This was pathalogical.  What happened is that it cd'd to
somewhere, then back to "$srcdir/tmp".  But configure isn't always run
in $srcdir/tmp, it can be run from anywhere.  So in such cases, where
configure is run from somewhere other than $srcdir/tmp, what was
happening was that soft links were getting set up in the right place,
but then if Tk was enabled we were cd'ing back to $srcdir/tmp, and
dumping all the configure-generated files there.  This wipes out the
Makefiles and other config settings in $srcdir/tmp, but also means the
real dir being configured is left unconfigured.  So it was ineffective
in the right place, and destructive in the wrong place.

To re-enable this code, it will be necessary to preserve the current
working directory across the code block that sets up those softlinks.

svn path=/trunk/; revision=3277

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