% Philip Taylor writes:
% > >> L: works under LaTeX
% > >> OL: works under LaTeX 2.09
% > >> P: works under plain TeX
% > >> X: support application, OS specific
% >
% > +:= E1: requires e-TeX V1
% > E2: requires e-TeX V2
% > On: requires Omega Vn...
%
% shall we just let the authors provide this clue? rather than trying to
% test it independently?
d'accord. ** Phil.