Documentation bug
This is a lie and I'm going to change the wording unless the author
wishes to add anything.
configure.usage:
--with-xfs Compile with XFontSet support for bilingual menubar.
Can't use this option with --with-xim=motif or xlib.
And should have --with-menubars=lucid.
I don't know/care about the --with-xim=motif part, but --with-xim=xlib
works fine with --with-xfs.