discussed in the PR.
- introduce sys/timevar.h to hold kernel-specific stuff relevant to
sys/time.h. Ideally, timevar.h would contain all (or almost) of the
#ifdef _KERNEL part of time.h, but that's a pretty big and tedious
change to make. For now, it will contain only the prototypes I
introduced when working on COMPAT_NETBSD32.
- split copyinout_t into copyin_t and copyout_t, it makes prototypes more
explicit about the meaning of a given argument. Suggested by yamt@.
- move copyinout_t definition in sys/time.h to systm.h as copyin_t and
copyout_t
- make everything uses the new types and include the proper headers at
the proper places.
388b97e039