gnuplot fails with libvga.so.1 not found

[hrocks]

I have X windows up and running.
Inside an xterm window managed by mwm
I type "gnuplot" and get above error.

I ran emerge sync and emerge -u gnuplot
but everything is said to be "up to date".

What else should I try?

Thank you.

[hrocks]

Thanks anyway. Found my own answer.
I ran emerge -s vga and found that my svgalib package was downrev.
So after emerge -u svgalib gnuplot works.

Outside of the thread I guess I can ask
when I ran emerge emacs it installed all
dependent packages, including the current
svgalib, but the svgalib was *not* put in
my 'world' file. Only emacs was. Why?