toolchain/53960: sparc64 fails to build

[martin%NetBSD.org@localhost]

>Number:         53960
>Category:       toolchain
>Synopsis:       sparc64 fails to build
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Feb 08 13:25:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.34
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD seven-days-to-the-wolves.aprisoft.de 8.99.34 NetBSD 8.99.34 (GENERIC) #258: Fri Feb 8 13:18:21 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 sparc64 after the switch to gcc 7 fails for me:

creating msgconv
--- msgmerge ---
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_destroy_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_test_nest_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_set_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_destroy_nest_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_init_nest_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_test_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_unset_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_init_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_set_nest_lock'
ld: /usr/lib/libgomp.so: undefined reference to `gomp_ialias_omp_unset_nest_lock'
*** [msgmerge] Error code 1
nbmake[11]: stopped in /work/obj/sparc64/work/src/tools/gettext/build/gettext-tools/src

I removed obj and destdir before the build.

>How-To-Repeat:

===> build.sh command:    ./build.sh -u -m sparc64 -M /work/obj/sparc64 -V BUILDINFO=Build locally, cvs.netbsd.org source tree date: 2019-02-08 12:35 UTC -V MKDEBUG=yes -V MKDEBUGLIB=yes -V TMPDIR=/var/shm/btmp -V MKCROSSGDB=yes -T /work/tools -D /work/hosts/sparc64 -j 12 -x distribution sets

>Fix:
n/a