ELF 32-bit LSB executabl ? (Re: lang/smlnj11072 not building on NetBSD 10/x86_64

[Makoto Fujiwara <makoto%if.t.u-tokyo.ac.jp@localhost>]

on 10.99.12:
- I've added -xv as:

mef20$ head /tmp/lang/smlnj11072/work/config/install.sh
#!/bin/sh -xv
#

and just checked the file:

mef20$ file /tmp/lang/smlnj11072/work/bin/.run/run.x86-netbsd
/tmp/lang/smlnj11072/work/bin/.run/run.x86-netbsd: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /usr/libexec/ld.elf_so, for NetBSD 10.99.12, with debug_info, not stripped

This looks strange ? (32 bit ?)
-- 
Makoto Fujiwara
mef%NetBSD.org@localhost
makoto%if.t.u-tokyo.ac.jp@localhost