toolchain/54076: Can not build tools

[martin%NetBSD.org@localhost]

>Number:         54076
>Category:       toolchain
>Synopsis:       Can not build tools
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 26 09:40:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.36
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD seven-days-to-the-wolves.aprisoft.de 8.99.36 NetBSD 8.99.36 (GENERIC) #264: Fri Mar 22 08:50:11 CET 2019 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

Trying to build tools for evbarm fails for me:

mv autom4te.tmp autom4te.cfg
--- autoupdate ---
mv autoupdate.tmp autoupdate
--- autoconf.in ---
autom4te_perllibdir='/work/src/tools/autoconf/../../external/gpl3/autoconf/dist'
/lib                                     AUTOM4TE_CFG='../lib/autom4te.cfg'     
    ../bin/autom4te      -B '..'/lib -B '/work/src/tools/autoconf/../../external
/gpl3/autoconf/dist'/lib --language M4sh --cache '' --melt /work/src/tools/autoc
onf/../../external/gpl3/autoconf/dist/bin/autoconf.as -o autoconf.in
Use of uninitialized value $msg in concatenation (.) or string at ../bin/autom4t
e line 1026.
Use of uninitialized value $stacktrace in pattern match (m//) at ../bin/autom4te
 line 1026.
unknown channel m4: syntax error in expr m4_Cursor + 0 + 1
m4: syntax error in expr 7 > ($0: )
 at /work/src/tools/autoconf/../../external/gpl3/autoconf/dist/lib/Autom4te/Chan
nels.pm line 638.
        Autom4te::Channels::msg("m4: syntax error in expr m4_Cursor + 0 + 1\x{a}
m4: syntax error i"..., undef, "warning: ", "partial", 0) called at ../bin/autom
4te line 1026
*** [autoconf.in] Error code 1
nbmake[9]: stopped in /work/obj/evbarm/work/src/tools/autoconf/build/bin


>How-To-Repeat:

./build.sh -u -m evbarm -M /work/obj/evbarm -V TMPDIR=/var/shm/btmp -V MKCROSSGDB=yes -T /work/tools -D /work/hosts/evbarm -j 12 tools

Removing the "-j 12" does not help. Event though -u is given, the objdir for
autoconf had been removed upfront (which didn't help either).

>Fix:
n/a