plotting error in build from current source



I get this error:

  plot2d (sin(x), [x, 0, 1]);

    => gnuplot> NIL 
                ^
                line 0: invalid command

Dunno what's going on there.

I'm working on Ubuntu 12.04.

Maxima version: "5.32.0"
Maxima build date: "2013-12-23 14:01:59"
Host type: "i686-pc-linux-gnu"
Lisp implementation type: "CLISP"
Lisp implementation version: "2.49 (2010-07-07) (built 3539704948) (memory 3596824934)"

best

Robert Dodier