Heiko Oberdiek a écrit : > Checking the existence of \directlua is useless, because the user > don't know, how to call it, if \luatexversion isn't available. > Thus I must at least provide \luatexversion. > (tex.enableprimitives might fail, even if \luatexversion > had the meaning "undefined" before, see dev-luatex). Ok, thank you! -- Elie