Sources updated several hours ago, and build run with:

./build.sh -O ../obj -T ../tools -u -U release

dependall ===> gnu/usr.bin/groff/src/libs/libgroff
#    create  libgroff/device.d
CC=/home/current/src/../tools/bin/i386--netbsdelf-gcc 
/home/current/src/../tools/bin/nbmkdep -f device.d --     -nostdinc++ 
-isystem-cxx  /home/current/src/../obj/destdir.i386/usr/include/g++ 
-nostdinc -isystem /home/current/src/../obj/destdir.i386/usr/include 
/home/current/src/gnu/dist/groff/src/libs/libgroff/device.cpp
/home/current/src/gnu/dist/groff/src/libs/libgroff/device.cpp:24:20: 
device.h: No such file or directory
/home/current/src/gnu/dist/groff/src/libs/libgroff/device.cpp:25:18: 
defs.h: No such file or directory
nbmkdep: compile failed.

*** Failed target:  device.d
*** Failed command: 
CC=/home/current/src/../tools/bin/i386--netbsdelf-gcc 
/home/current/src/../tools/bin/nbmkdep -f device.d -- -nostdinc++ 
-isystem-cxx /home/current/src/../obj/destdir.i386/usr/include/g++ 
-nostdinc -isystem /home/current/src/../obj/destdir.i386/usr/include 
/home/current/src/gnu/dist/groff/src/libs/libgroff/device.cpp
*** Error code 1

Stop.
nbmake: stopped in /home/current/src/gnu/usr.bin/groff/src/libs/libgroff

*** Failed target:  dependall-libgroff
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; 
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) 
this="gnu/usr.bin/groff/src/libs/"; 
real="/home/current/src/gnu/usr.bin/groff/src/libs" ;; *) 
this="gnu/usr.bin/groff/src/libs/${dir}/"; 
real="/home/current/src/gnu/usr.bin/groff/src/libs/${dir}" ;; esac; 
show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd 
"${real}" && /home/current/src/../tools/bin/nbmake _THISDIR_="${this}" 
"$@" ${target}; }; _makedirtarget libgroff dependall
*** Error code 1

Stop.
nbmake: stopped in /home/current/src/gnu/usr.bin/groff/src/libs

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

Stop.
nbmake: stopped in /home/current/src/gnu/usr.bin/groff/src

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

Stop.
nbmake: stopped in /home/current/src/gnu/usr.bin/groff

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

Stop.
nbmake: stopped in /home/current/src/gnu/usr.bin

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

Stop.
nbmake: stopped in /home/current/src/gnu

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

Stop.
nbmake: stopped in /home/current/src

*** Failed target:  do-build
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; 
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this=""; 
real="/home/current/src" ;; *) this="${dir}/"; 
real="/home/current/src/${dir}" ;; esac; show=${this:-.}; echo 
"${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && 
/home/current/src/../tools/bin/nbmake _THISDIR_="${this}" "$@" 
${target}; }; _makedirtarget . dependall BUILD_tools=no BUILD_lib=no
*** Error code 1

Stop.
nbmake: stopped in /home/current/src

*** Failed target:  build
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; 
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this=""; 
real="/home/current/src" ;; *) this="${dir}/"; 
real="/home/current/src/${dir}" ;; esac; show=${this:-.}; echo 
"${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && 
/home/current/src/../tools/bin/nbmake _THISDIR_="${this}" "$@" 
${target}; }; _makedirtarget . do-build
*** Error code 1

Stop.
nbmake: stopped in /home/current/src

*** Failed target:  release
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; 
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this=""; 
real="/home/current/src" ;; *) this="${dir}/"; 
real="/home/current/src/${dir}" ;; esac; show=${this:-.}; echo 
"${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && 
/home/current/src/../tools/bin/nbmake _THISDIR_="${this}" "$@" 
${target}; }; _makedirtarget . build NOPOSTINSTALL=1
*** Error code 1

Stop.
nbmake: stopped in /home/current/src

ERROR: Failed to make release
*** BUILD ABORTED ***