libreoffice fails to build

[tech-lists]

Hi,

Building libreoffice (libreoffice-en_GB) complains about illegal
instruction and dumps core. Full script output is at
https://www.zyxst.net/errors/libreofficebuildfail.txt

last few lines of make MAKE_JOBS_UNSAFE=yes -DBATCH

##################################################################

[HIX] scalc/en-US
S=/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1 &&
I=$S/instdir && W=$S/workdir &&  ( rm -rf
$W/HelpTarget/scalc/en-US/scalc.idxl &&
LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}"$I/program:$I/program"
  $W/LinkTarget/Executable/HelpIndexer -dir $W/HelpTarget/scalc/en-US
-lang en-US -mod scalc && touch $W/HelpIndexTarget/scalc/en-US.done ) ||
( rm -rf scalc.* ; false )
Illegal instruction (core dumped)
gmake[3]: ***
[/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1/solenv/gbuild/HelpTarget.mk:452:
/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1/workdir/HelpIndexTarget/sbasic/en-US.done]
Error 1
gmake[3]: *** Waiting for unfinished jobs....
Illegal instruction (core dumped)
gmake[3]: ***
[/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1/solenv/gbuild/HelpTarget.mk:452:
/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1/workdir/HelpIndexTarget/scalc/en-US.done]
Error 1
gmake[3]: Leaving directory
'/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1'
gmake[2]: *** [Makefile:268: build] Error 2
gmake[2]: Leaving directory
'/usr/ports/editors/libreoffice/work/libreoffice-6.0.2.1'
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/editors/libreoffice
*** Error code 1

Stop.
make: stopped in /usr/ports/editors/libreoffice-en_GB

########################################################
context:
no /etc/make.conf

root at eggs:/root# uname -KU
1101512 1101512
root at eggs:/root#

system: 11.1-STABLE #0 r331421 amd64

ports:
root at eggs:/root# svnlite info /usr/ports
Path: /usr/ports
Working Copy Root Path: /usr/ports
URL: https://svn.freebsd.org/ports/head
Relative URL: ^/head
Repository Root: https://svn.freebsd.org/ports
Repository UUID: 35697150-7ecd-e111-bb59-0022644237b5
Revision: 465452
Node Kind: directory
Schedule: normal
Last Changed Author: gerald
Last Changed Rev: 465452
Last Changed Date: 2018-03-24 14:15:56 +0000 (Sat, 24 Mar 2018)

shall I file a bug report?

-- 
J.