build (install!!) failure

[bch <brad.harder%gmail.com@localhost>]

Copying set xfont
Copying set xserver
postinstall-check ===> .        (with: DESTDIR=/)
sh: PPID: is read only
nbmake[1]: "/usr/src/share/mk/bsd.own.mk" line 1284: warning: "cd
"/usr/src/../xsrc" && pwd" returned non-zero status
sh: PPID: is read only
nbmake[1]: "/usr/src/etc/Makefile.params" line 71: warning: "/bin/sh
/usr/src/sys/conf/osrelease.sh" returned non-zero status
sh: PPID: is read only
nbmake[1]: "/usr/src/Makefile" line 284: warning: "date" returned
non-zero status
sh: PPID: is read only
nbmake[1]: "/usr/src/Makefile" line 326: warning: "uname -s" returned
non-zero status
sh: PPID: is read only
nbmake[1]: "/usr/src/Makefile" line 327: warning: "uname -m" returned
non-zero status
sh: PPID: is read only
nbmake[1]: "/usr/src/share/mk/bsd.kernobj.mk" line 32: warning: "cd
"/usr/src/sys/arch/amd64/compile" &&
/usr/src/obj/tooldir.NetBSD-7.99.26-amd64/bin/nbmake -V .OBJDIR"
returned non-zero status
sh: PPID: is read only

*** Failed target:  postinstall-check
*** Failed command: echo " === Post installation checks ==="
*** Error code 2

Stop.
nbmake[1]: stopped in /usr/src

*** Failed target:  installworld
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1";
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .)
this=""; real="/usr/src" ;; *) this="${dir}/"; real="/usr/src/${dir}"
;; esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with:
$@)}"; cd "${real}" &&
/usr/src/obj/tooldir.NetBSD-7.99.26-amd64/bin/nbmake
_THISDIR_="${this}" "$@" ${target}; }; _makedirtarget .
postinstall-check DESTDIR=/
*** Error code 1

Stop.
nbmake: stopped in /usr/src

ERROR: Failed to make installworld to /
*** BUILD ABORTED ***