On 04/16/2011 11:53 AM, Heiko Oberdiek wrote: > Thus, is the following logic (pseudocode) is correct for getting > the value of \pdfshellescape? Yes > if luatexversion> 40 % do you know accidently the correct value? No idea, really. From the source tree, it looks like 0.40.6 should have crashed as well. Best wishes, Taco