Revision 494781

databases/mroonga: unbreak with libc++ 8

In file included from mrn_path_mapper.cpp:22:
In file included from ../mrn_mysql.h:46:
In file included from /wrkdirs/usr/ports/databases/mysql56-server/work/mysql-5.6.43/sql/sql_plugin.h:19:
In file included from /wrkdirs/usr/ports/databases/mysql56-server/work/mysql-5.6.43/include/my_global.h:319:
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:
../version:1:1: error: expected unqualified-id
9.00
^

PR:		236192
Approved by:	portmgr blanket