current fails to build on amd64

[Nikita Gillmann <nikita%NetBSD.org@localhost>]

This is with a recent checkout after gcc9 import. If no one can
reproduce this, what can I do?

#    create  libstdc++-v3/cow-fs_dir.d
CC=/usr/src/../tools/bin/x86_64--netbsd-c++
/usr/src/../tools/bin/nbmkdep -f cow-fs_dir.d.tmp  --
-I/usr/src/../obj/destdir.amd64/usr/include/g++/backward    
--sysroot=/usr/src/../obj/destdir.amd64
-I/usr/src/external/gpl3/gcc/dist/gcc
-I/usr/src/external/gpl3/gcc/dist/include
-I/usr/src/external/gpl3/gcc/dist/libstdc++-v3/libsupc++
-I/usr/src/external/gpl3/gcc/dist/libgcc
-I/usr/src/external/gpl3/gcc/lib/libstdc++-v3/../libstdc++-v3/arch/x86_64
-I. -DHAVE_STDLIB_H -DHAVE_STRING_H
-I/usr/src/external/gpl3/gcc/dist/libstdc++-v3/include
-I/usr/src/external/gpl3/gcc/di
st/gcc/config/i386
-I/usr/src/external/gpl3/gcc/lib/libstdc++-v3/arch/x86_64
-D_GLIBCXX_SHARED -DGTHREAD_USE_WEAK -DSUPPORTS_WEAK
-I/usr/src/external/gpl3/gcc/dist/libstdc++-v3/config/locale/
dragonfly -Wp,-fno-canonical-system-headers -std=gnu++17
-fimplicit-templates   
/usr/src/external/gpl3/gcc/dist/libstdc++-v3/src/c++17/cow-fs_dir.cc && 
mv -f cow-fs_dir.d.tmp cow-fs_dir.d
In file included from
/usr/src/external/gpl3/gcc/dist/libstdc++-v3/src/c++17/cow-fs_dir.cc:26:
/usr/src/external/gpl3/gcc/dist/libstdc++-v3/src/c++17/fs_dir.cc:29:10:
fatal error: bits/largefile-config.h: No such file or directory
   29 | #include <bits/largefile-config.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
nbmkdep: compile failed.

*** Failed target:  cow-fs_dir.d
*** Failed command: CC=/usr/src/../tools/bin/x86_64--netbsd-c++
/usr/src/../tools/bin/nbmkdep -f cow-fs_dir.d.tmp --
-I/usr/src/../obj/destdir.amd64/usr/include/g++/backward
--sysroot=/usr/src/../obj/destdir.amd64
-I/usr/src/external/gpl3/gcc/dist/gcc
-I/usr/src/external/gpl3/gcc/dist/include
-I/usr/src/external/gpl3/gcc/dist/libstdc++-v3/libsupc++
-I/usr/src/external/gpl3/gcc/dist/libgcc
-I/usr/src/external/gpl3/gcc/lib/libstdc++-v3/../libstdc++-v3/arch/x86_64
-I. -DHAVE_STDLIB_H -DHAVE_STRING_H
-I/usr/src/external/gpl3/gcc/dist/libstdc++-v3/include
-I/usr/src/external/gpl3/gcc/dist/gcc/config/i386
-I/usr/src/external/gpl3/gcc/lib/libstdc++-v3/arch/x86_64
-D_GLIBCXX_SHARED -DGTHREAD_USE_WEAK -DSUPPORTS_WEAK
-I/usr/src/external/gpl3/gcc/dist/libstdc++-v3/config/locale/dragonfly
-Wp,-fno-canonical-system-headers -std=gnu++17 -fimplicit-templates
/usr/src/external/gpl3/gcc/dist/libstdc++-v3/src/c++17/cow-fs_dir.cc &&
mv -f cow-fs_dir.d.tmp cow-fs_dir.d
*** Error code 1

Stop.
nbmake[5]: stopped in /usr/src/external/gpl3/gcc/lib/libstdc++-v3
*** Failed target:  dependall-../external/gpl3/gcc/lib/libstdc++-v3
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1";
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .)
this="lib/"; real="/usr/src/lib" ;; *) this="lib/${dir}/";
 real="/usr/src/lib/${dir}" ;; esac; show=${this:-.}; echo "${target}
===> ${show%/}${1:+ (with: $@)}"; cd "${real}" &&
/usr/src/../tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _ma
kedirtarget ../external/gpl3/gcc/lib/libstdc++-v3 dependall
*** Error code 1

*** Failed target:  build_install
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1";
shift; case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .)
this="lib/"; real="/usr/src/lib" ;; *) this="lib/${dir}/";
 real="/usr/src/lib/${dir}" ;; esac; show=${this:-.}; echo "${target}
===> ${show%/}${1:+ (with: $@)}"; cd "${real}" &&
/usr/src/../tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _ma
kedirtarget . dependall-../external/bsd/librtld_db/lib
dependall-../external/cddl/osnet/lib/libctf
dependall-../external/public-domain/xz/lib
dependall-../crypto/external/bsd/netpgp/libmj dep
endall-../crypto/external/bsd/netpgp/lib/verify
dependall-../external/bsd/blocklist/lib
dependall-../external/bsd/elftoolchain/lib/libdwarf
dependall-../external/mit/lua/lib dependall-libcurs
es dependall-libdm dependall-libedit dependall-libexecinfo
dependall-libppath dependall-libperfuse dependall-libquota
dependall-librefuse dependall-libisns dependall-librumphijack dependall-l
ibrumpres dependall-librumpuser dependall-libnpf
dependall-../crypto/external/bsd/openssl/lib
dependall-../external/bsd/iscsi/lib
dependall-../external/cddl/osnet/lib/libzfs_core dependall-..
/external/cddl/osnet/lib/libzpool dependall-../external/gpl2/lvm2/lib
dependall-../external/gpl3/binutils/lib
dependall-../external/gpl3/gcc/lib/libstdc++-v3
dependall-../external/gpl3/gcc/li
b/libsupc++ dependall-../external/apache2/llvm/include
dependall-../external/mit/libcbor/lib dependall-../external/mit/libuv/lib
*** Error code 1

Stop.
nbmake[3]: stopped in /usr/src/lib

*** Failed target:  do-lib
*** 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/../tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; };
_makedirtarget lib
build_install
*** Error code 1

*** Failed target:  build
*** 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/../tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; };
_makedirtarget . do
-lib
*** Error code 1

*** Failed target:  distribution
*** 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/../tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; };
_makedirtarget . bu
ild NOPOSTINSTALL=1
*** Error code 1

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