Disable mysql dbm during freeradius installation

Hi I am installing Freeradius and for my scenario i just need to authenticate from local files and there is no need for DBM or mysql or anything. how do i disable them during installation of freeradius. I tried using --disable-rlm-dbm and similar but it din't work out. How do i disable them from installing? Awaiting any help! Many thanks. Thanks and regards R.Vasanth Ragavendran.