enable the 256 colors support in xterm?

[Dan Nicolaescu <dann godzilla ics uci edu>]

Can the FC3 xterm be compiled with support for 256 colors enabled? 
(i.e. configure with --enable-256-color)

This would enable applications to take advantage of a higher number
of colors.

For example, the next version of Emacs will have support for 256 color
xterms.

(This support is not present in emacs-21.3 but it can probably be
easily backported, if desired. It would probably be an ~200 lines
patch).  With that support, syntax coloring in emacs running in an
xterm looks almost identical to emacs running in X11. This is great
for using emacs over slow connections. 

Thanks.
                --dan