> I just put a new snapshot at http://www.star-lab.com/sweeks/src.tgz > This is the aforementioned stable snapshot. Do I win a prize for finding the first bug? ;) Try the regression suite with -DMLton_detectOverflow. I variously get mlton: toList(jump L_0) of unknown handler stack and /tmp/fileR7UCrO.c: In function `Chunk1': /tmp/fileR7UCrO.c:953: `L_198' undeclared (first use in this function) compile errors.