10.8.4 fails to build on OpenBSD

/home/ports/pobj/mariadb-10.8.4/bin/c++ -DDBUG_TRACE -DHAVE_CONFIG_H -I/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/wsrep-lib/include -I/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/wsrep-lib/wsrep-API/v26 -I/home/ports/pobj/mariadb-10.8.4/build-amd64/include -I/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/include/providers -I/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/tpool -I/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/include -O2 -pipe  -I/usr/local/include -fstack-protector --param=ssp-buffer-size=4 -DNDEBUG -D_FORTIFY_SOURCE=2 -DDBUG_OFF -std=gnu++11 -MD -MT tpool/CMakeFiles/tpool.dir/tpool_generic.cc.o -MF tpool/CMakeFiles/tpool.dir/tpool_generic.cc.o.d -o tpool/CMakeFiles/tpool.dir/tpool_generic.cc.o -c /home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/tpool/tpool_generic.cc

In file included from /home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/tpool/tpool_generic.cc:36:

/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/include/aligned.h:27:10: error: use of undeclared identifier 'aligned_alloc'; did you mean 'aligned_malloc'?

  return aligned_alloc(alignment, size);

         ^~~~~~~~~~~~~

         aligned_malloc

/home/ports/pobj/mariadb-10.8.4/mariadb-10.8.4/include/aligned.h:22:14: note: 'aligned_malloc' declared here

inline void *aligned_malloc(size_t size, size_t alignment)

             ^

1 error generated.