10.0.32 does not compile on architectures without 64-bit atomics

In file included from /home/ports/pobj/mariadb-10.0.32/mariadb-10.0.32/storage/innobase/srv/srv0mon.cc:31:

/home/ports/pobj/mariadb-10.0.32/mariadb-10.0.32/storage/innobase/include/srv0mon.h:621:8: error: unknown type name 'ib_mutex_t'; did you mean 'os_mutex_t'?

extern ib_mutex_t       monitor_mutex;

       ^~~~~~~~~~

       os_mutex_t

/home/ports/pobj/mariadb-10.0.32/mariadb-10.0.32/storage/innobase/include/os0sync.h:115:16: note: 'os_mutex_t' declared here

typedef struct os_mutex_t*      os_ib_mutex_t;

               ^

/home/ports/pobj/mariadb-10.0.32/mariadb-10.0.32/storage/innobase/srv/srv0mon.cc:1254:12: error: redefinition of 'monitor_mutex' with a different type: 'ib_mutex_t' vs 'os_mutex_t'

ib_mutex_t      monitor_mutex;

                ^

/home/ports/pobj/mariadb-10.0.32/mariadb-10.0.32/storage/innobase/include/srv0mon.h:621:19: note: previous declaration is here

extern ib_mutex_t       monitor_mutex;

                        ^