On Aug 6, 2009, at 1:49 AM, Laurent Sansonetti wrote: > It seems that the following command could be used: > > $ sysctl hw.cpu64bit_capable > > On my machines (all 64-bit unfortunately) this returns 1. Could one > on 32-bit check that it returns 0? $ sysctl hw.cpu64bit_capable hw.cpu64bit_capable: 0