I'm trying to figure out my canonical set of options for building 5.6.1 when it comes out. Am I correct in assuming that -Duse64bitint implies -Ubincompat5005? I can't see how 5.6.1 can be binary compatible with 5.005 if the size of an IV has changed. Also, what happened to the enabling/disabling of sigsetjmp? I know there was a lot of discussion in this area, and talk of a workaround to remove the use of sigsetjmp, but did it make it into 5.6.1? Thanks, Alan BurlisonThread Next