That would also avoid the use of the somewhat hacky emul_find, and we
   wouldn't need to use CHECK_ALT* macros in all releveant syscall
   emulations.


note that netbsd32 is designed to only use the emulroot for a minimal
number of things - namely, those that shlibs need.  everything else
should reference the normal root as-is...

other emulations have different levels, but in all cases not all
calls want/need to be checked..


.mrg.