On Wed, Mar 04, 2009 at 09:43:23AM +0100, Taco Hoekwater wrote: > Oops, hans is right of course. Even better: > > \ifnum\luatexversion<40 > \def\directlua{\primitive\directlua0} > \fi \ifnum\luatexversion<40 \def\directlua#{\primitive\directlua0} \fi Yours sincerely Heiko <oberdiek at uni-freiburg.de>