(gnuplot:19214): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", (on Ubuntu)

[Tatsuro M. <tma...@ya...>]

Hello

I have challenge to build gnuplot-4.6rc1 on Ubuntu 11.10 (32 bit).

I have downloaded the dependencies using synaptic package manager.
The build seemed to be successful and make check went well.

However,

From the gnuplot prompt (wxt terminal),
***************************************
Terminal type set to 'wxt'
gnuplot> plot sin(x)

(gnuplot:19214): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(gnuplot:19214): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(gnuplot:19214): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(gnuplot:19214): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
***************************

The error did not occur usinf x11 terminal.
Perhaps something was missing for wxt terminal.

Any suggestions?

Regards

Tatsuro