> Always include the 32 bit structure and definitions on _LP64 regardless > of compat32 being on or off, because we want the headers to work when > compiling modular kernels. Of course the 32 bit structs do not make sense > on platforms that don't have 32 bit modes (alpha), but we don't have > a define for that and it does not hurt.
i've been using _LP64 && !__alpha__ for this when it strikes. sub-optimal, but also easy to grep and find :-) .mrg.