./configure --enable-slapd --with-cyrus-sasl --enable-bdb --enable-passwd --enable-ldbm
checking for thr_getconcurrency... no
checking for pthread_kill_other_threads_np... yes
checking for LinuxThreads implementation... yes
checking for LinuxThreads consistency... yes
checking if pthread_create() works... yes
checking if select yields when using pthreads... yes
checking for thread specific errno... yes
checking for thread specific h_errno... yes
checking for ctime_r... yes
checking for gethostbyname_r... yes
checking for gethostbyaddr_r... yes
checking number of arguments of ctime_r... 2
checking number of arguments of gethostbyname_r... 6
checking number of arguments of gethostbyaddr_r... 8
checking for db.h... no
configure: error: BDB: BerkeleyDB not available