mroonga storage engine fails to build on OpenBSD

humpty$ make

===>  Building for mariadb-10.5.8

[1/102] cd /home/ports/pobj/mariadb-10.5.8/build-amd64 && /usr/local/bin/cmake -P /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/cmake/info_src.cmake

[2/102] cd /home/ports/pobj/mariadb-10.5.8/build-amd64 && /usr/local/bin/cmake -P /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/cmake/info_bin.cmake

[3/102] /home/ports/pobj/mariadb-10.5.8/bin/c++  -DDBUG_TRACE -DHAVE_CONFIG_H -DMRN_GROONGA_EMBEDDED -DMRN_GROONGA_NORMALIZER_MYSQL_EMBEDDED -DMYSQL_DYNAMIC_PLUGIN -DWITH_GROONGA_NORMALIZER_MYSQL=1 -Dmroonga_EXPORTS -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/wsrep-l

ib/include -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/wsrep-lib/wsrep-API/v26 -Iinclude -Istorage/mroonga -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/lib -I/home/ports/pobj/mariadb

-10.5.8/mariadb-10.5.8/include -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/sql -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/regex -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8 -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/vendor/groonga/incl

ude -O2 -pipe  -I/usr/local/include -fstack-protector --param=ssp-buffer-size=4 -DNDEBUG -D_FORTIFY_SOURCE=2 -DDBUG_OFF -fPIC   -std=gnu++11 -MD -MT storage/mroonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o -MF storage/mroonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o.d -o st

orage/mroonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o -c /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp

FAILED: storage/mroonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o

/home/ports/pobj/mariadb-10.5.8/bin/c++  -DDBUG_TRACE -DHAVE_CONFIG_H -DMRN_GROONGA_EMBEDDED -DMRN_GROONGA_NORMALIZER_MYSQL_EMBEDDED -DMYSQL_DYNAMIC_PLUGIN -DWITH_GROONGA_NORMALIZER_MYSQL=1 -Dmroonga_EXPORTS -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/wsrep-lib/inclu

de -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/wsrep-lib/wsrep-API/v26 -Iinclude -Istorage/mroonga -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/lib -I/home/ports/pobj/mariadb-10.5.8/

mariadb-10.5.8/include -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/sql -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/regex -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8 -I/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/vendor/groonga/include -O2

-pipe  -I/usr/local/include -fstack-protector --param=ssp-buffer-size=4 -DNDEBUG -D_FORTIFY_SOURCE=2 -DDBUG_OFF -fPIC   -std=gnu++11 -MD -MT storage/mroonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o -MF storage/mroonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o.d -o storage/mr

oonga/CMakeFiles/mroonga.dir/ha_mroonga.cpp.o -c /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp:23:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/mrn_mysql.h:24:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/include/my_global.h:320:

In file included from /usr/include/c++/v1/math.h:309:

In file included from /usr/include/c++/v1/type_traits:406:

In file included from /usr/include/c++/v1/cstddef:38:

/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/version:1:1: error: expected unqualified-id

7.07

^

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp:23:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/mrn_mysql.h:24:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/include/my_global.h:320:

In file included from /usr/include/c++/v1/math.h:309:

In file included from /usr/include/c++/v1/type_traits:407:

/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/version:1:1: error: expected unqualified-id

7.07

^

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp:23:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/mrn_mysql.h:24:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/include/my_global.h:320:

In file included from /usr/include/c++/v1/math.h:310:

In file included from /usr/include/c++/v1/limits:122:

/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/version:1:1: error: expected unqualified-id

7.07

^

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp:23:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/mrn_mysql.h:24:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/include/my_global.h:1127:

In file included from /usr/include/c++/v1/new:85:

In file included from /usr/include/c++/v1/exception:84:

/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/version:1:1: error: expected unqualified-id

7.07

^

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp:23:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/mrn_mysql.h:24:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/include/my_global.h:1127:

In file included from /usr/include/c++/v1/new:88:

/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/version:1:1: error: expected unqualified-id

7.07

^

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/ha_mroonga.cpp:23:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/mrn_mysql.h:51:

In file included from /home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/sql/sql_class.h:23:

In file included from /usr/include/c++/v1/atomic:547:

/home/ports/pobj/mariadb-10.5.8/mariadb-10.5.8/storage/mroonga/version:1:1: error: expected unqualified-id

7.07

^

.....