./configure --enable-memaslap succeed, however, make will return errors like: clients/ms_task.c: In function ‘ms_need_overwrite_item’: clients/ms_task.c:294:19: warning: unused variable ‘item’ [-Wunused-variable] clients/ms_task.c: In function ‘ms_task_expire_verify_init’: clients/ms_task.c:460:19…