Omplotdata does not find the wish?



Hello,

I installed Texmacs and Maxima yesterday on my Mac. Everything went
amazingly fine, and Maxima runs in Texmacs, except that I get the following
when trying to plot:

(C1) plot2d(sin(x), [x, 0, 2*%pi]);

/usr/local/libexec/maxima/5.9.0/omplotdata: exec: wish: not found
(D1) 127

What can I do?

Thanks,

Frank