Simon,
> Sounds like Josh is asking for a way to find out the things that matter
> on an architecture and compare them with the relevant parts of the
> pg_control structure. The 32/64 bit thing was probably just his
> shorthand for that. Perhaps we should document how to perform a
> portability check?
>
Pretty much. We're supporting x86 64-bit servers for Solaris now, and
we need SMF to be able to check whether it can safely run x binaries
against y data.
--Josh Berkus