CURRENT (r253862): buildworld fails in libexec/atf/atf-check: ... /usr/obj/usr/src/tmp/usr/bin/ld: 6: invalid DSO for symbol `__cxa_call_unexpected@@CXXABI_1.3'

Buildworld fails with


===> libexec/atf/atf-check (all)
c++  -O2 -pipe -O3 -march=native -DHAVE_CONFIG_H -O3
-I/usr/src/libexec/atf/atf-check/../../../contrib/atf
-Qunused-arguments -fstack-protector -Wsystem-headers -Werror -Wall
-Wno-format-y2k -W -Wno-unused-parameter -Wpointer-arith
-Wno-uninitialized -Wno-empty-body -Wno-string-plus-int
-Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality
-Wno-unused-function -Wno-conversion -stdlib=libc++ -std=c++11
-c /usr/src/libexec/atf/atf-check/../../../contrib/atf/atf-sh/atf-check.cpp
c++  -O2 -pipe -O3 -march=native -DHAVE_CONFIG_H -O3
-I/usr/src/libexec/atf/atf-check/../../../contrib/atf
-Qunused-arguments -fstack-protector -Wsystem-headers -Werror -Wall
-Wno-format-y2k -W -Wno-unused-parameter -Wpointer-arith
-Wno-uninitialized -Wno-empty-body -Wno-string-plus-int
-Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality
-Wno-unused-function -Wno-conversion -stdlib=libc++ -std=c++11
-L/usr/obj/usr/src/libexec/atf/atf-check/../../../lib/atf/libatf-c++
-L/usr/obj/usr/src/libexec/atf/atf-check/../../../lib/atf/libatf-c -o
atf-check atf-check.o -latf-c++
-latf-c /usr/obj/usr/src/tmp/usr/bin/ld: 6: invalid DSO for symbol
`__cxa_call_unexpected_at__at_CXXABI_1.3'
definition /usr/obj/usr/src/tmp/lib/libcxxrt.so.1: could not read
symbols: Bad value c++: error: linker command failed with exit code 1
(use -v to see invocation) *** Error code 1

Stop.
make: stopped in /usr/src/libexec/atf/atf-check
*** Error code 1


Just for the record.

Oliver