Cut/Paste into Octave Slinky

[Thomas D. Dean]

I have Ubuntu 16.04 (sigh...) and octave 4.3.0+ I run in an xterm 
without the gui.

If I cut/paste into octave, it is slinky, a few char appear, a delay, a 
few more char, etc.

If I do this with any other xterm, cut/paste seems instantaneous.

I configure with
../octave/configure F77=gfortran --no-recursion

and make produces no errors.
make check seems Ok.

If I start octave with
/usr/local/bin/octave, I get the gui, so I use
/usr/local/bin/octave --no-gui

Actually, I use

/usr/bin/xterm -j -sk -sb -sl 1000 -fn 9x15 -bc -bg white -fg black 
-geometry 80x55 -e octave --no-gui&

from an alias.

Is it possible that allowing qt in the build that I have introduced a 
problem with readline?

Tom Dean