It looks like the flists for i386 are out of date.  This is the
output from a 20030518 i386 build:

(cd /mnt/NetBSD-current/src/distrib/sets; /mnt/NetBSD-current/src/tools/obj/tools.NetBSD-1.6_RC1-i386/bin/nbmake sets)
/mnt/NetBSD-current/src/tools/obj/tools.NetBSD-1.6_RC1-i386/bin/nbmake checkflist
DESTDIR=/mnt/NetBSD-current/destdir  MACHINE=i386 MACHINE_ARCH=i386  CKSUM=/mnt/NetBSD-current/src/tools/obj/tools.NetBSD-1.6_RC1-i386/bin/nbcksum MAKE=/mnt/NetBSD-current/src/tools/obj/tools.NetBSD-1.6_RC1-i386/bin/nbmake MTREE=/mnt/NetBSD-current/src/tools/obj/tools.NetBSD-1.6_RC1-i386/bin/nbmtree PAX=/mnt/NetBSD-current/src/tools/obj/tools.NetBSD-1.6_RC1-i386/bin/nbpax sh /mnt/NetBSD-current/src/distrib/sets/checkflist
266a267
> ./lib/libc.so.12.97
1357a1359
> ./usr/include/i386/mouse.h
1916a1919
> ./usr/include/sys/float_ieee.h
2175a2179
> ./usr/lib/libc.so.12.97
2249a2254
> ./usr/lib/libgssapi.so.4.0
2297a2303
> ./usr/lib/libkafs.so.5.1
2313a2320
> ./usr/lib/libkrb5.so.18.1
2756a2764
> ./usr/sbin/kvm_mkdb
7158a7167
> ./usr/share/man/cat4/i386/busmouse.0
7171a7181,7182
> ./usr/share/man/cat4/i386/olms.0
> ./usr/share/man/cat4/i386/omms.0
7573a7585
> ./usr/share/man/cat4/veriexec.0
8061a8074
> ./usr/share/man/cat8/kvm_mkdb.0
12377a12391
> ./usr/share/man/man4/i386/busmouse.4
12390a12405,12406
> ./usr/share/man/man4/i386/olms.4
> ./usr/share/man/man4/i386/omms.4
12792a12809
> ./usr/share/man/man4/veriexec.4
13280a13298
> ./usr/share/man/man8/kvm_mkdb.8
checkflist: flist inconsistencies found
checkflist: key to output:
  <  file is in flist but missing from DESTDIR
     (file wasn't installed ?)
  >  file is in DESTDIR but missing from flist
     (file is obsolete or flist is out of date ?)
*** Error code 1