Directory and file comparison tool for X?

[wc_fbsd at xxiii.com]

 > I'm looking for a tool that will allow me to compare directories
 > (recursively) showing what files are different,etc. meld ( textproc/meld )
 > can do this to some extent, showing missing files,etc, but not showing

You said "for X" -- check out Kdiff3 -- it rocks if you're looking 
for a visual comparison tool (though I've only used it under windoze) 
http://kdiff3.sourceforge.net/  or /usr/ports/textproc/kdiff3

   -Wayne