[luatex] macros to invoke lua in LaTeX

[Elie Roux]

Taco Hoekwater a écrit :
>>>
>>> \ifnum\luatexversion<40
>>>   \def\directlua{\primitive\directlua0}
>>> \fi
>>>       
>
> Just marked deprecated. But that comes with a terminal message
> that you will want to avoud.
>   

Sure... but then I don't understand why we should put a 
\ifnum\luatexversion<40?
-- 
Elie