./build.sh losing on RPi 3

Hi, I wonder what I'm doing wrong. I'm trying to build the kernel, but it's stopping in build of the tools. Thanks for any hints.

(dmesg says RPI2 but it's running on RPI3)

NetBSD 8.99.10 (RPI2) #0: Wed Jan 3 09:46:41 UTC 2018

mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/evbarm/compile/RPI2

total memory = 944 MB

avail memory = 926 MB

<etc>

===> build.sh command: ./build.sh -T ../tooldir -D ../destdir -R ../releasedir -O ../objdir -X ../xsrc -U -x -j4 -r release

===> build.sh started: Fri Jan 19 13:53:22 JST 2018

===> NetBSD version: 8.99.12

===> MACHINE: evbarm

===> MACHINE_ARCH: earm

===> Build platform: NetBSD 8.99.10 evbarm

===> HOST_SH: /bin/sh

===> Bootstrapping nbmake

dependall ===> tools/makestrs

--- .depend ---

# create makestrs/.depend

rm -f .depend

/c/usr/src/../tooldir/bin/nbhost-mkdep -s .lo\ .ln\ .d -d -f .depend makestrs.d

/c/usr/src/../tooldir/bin/nbhost-mkdep: Ignoring makestrs.d

--- dependall ---

--- nbmakestrs ---

# link makestrs/nbmakestrs

cc -O -I/c/usr/src/../tooldir/include/compat -I/c/usr/src/tools/compat -DHAVE_NBTOOL_CONFIG_H=1 -D_FILE_OFFSET_BITS=64 -I. -o nbmakestrs makestrs.lo -L/c/usr/src/../tooldir/lib -lnbcompat -lrt -lz

cc: error: makestrs.lo: No such file or directory

*** [nbmakestrs] Error code 1

nbmake[7]: stopped in /c/usr/src/tools/makestrs

1 error

nbmake[7]: stopped in /c/usr/src/tools/makestrs

*** [dependall] Error code 2

nbmake[6]: stopped in /c/usr/src/tools/makestrs

1 error

nbmake[6]: stopped in /c/usr/src/tools/makestrs

*** Failed target: dependall-makestrs

*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this="tools/"; real="/c/usr/src/tools" ;; *) this="tools/${dir}/"; real="/c/usr/src/tools/${dir}" ;; esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && /c/usr/src/../tooldir/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget makestrs dependall

*** Error code 2

Stop.

nbmake[5]: stopped in /c/usr/src/tools

*** [build_install] Error code 1

nbmake[4]: stopped in /c/usr/src/tools

1 error

nbmake[4]: stopped in /c/usr/src/tools

*** [do-tools] Error code 2

nbmake[3]: stopped in /c/usr/src

1 error

nbmake[3]: stopped in /c/usr/src

*** [build] Error code 2

nbmake[2]: stopped in /c/usr/src

1 error

nbmake[2]: stopped in /c/usr/src

*** [distribution] Error code 2

nbmake[1]: stopped in /c/usr/src

1 error

nbmake[1]: stopped in /c/usr/src

*** [release] Error code 2

nbmake: stopped in /c/usr/src

1 error

nbmake: stopped in /c/usr/src

ERROR: Failed to make release

*** BUILD ABORTED ***

./build.sh -T ../tooldir -D ../destdir -R ../releasedir -O ../objdir -X -U - 10171.93s user 2759.57s system 201% cpu 1:47:10.91 total