I must admit that I am _very_ confused about how to select database backends.
There is one set of how things are named when you run configure and configure has both the --disable-X-db and the --without-X syntaxes depending on X. Then you have the --with-db-type-preference as well. For each possible database backend I'd like to know 1. A long and descriptive name of the database backend, preferably with a reference where information can be found about it 2. How to write in configue to turn it on and off. Preferably there is some consistency in the naming. configure --help says today (...) --disable-mdb-db if you don't want LMDB (...) --with-db-type-preference=list specify HDB backend DB type preference as whitespace-separated list of db1, db3, lmdb, and/or sqlite So is it mdb with or without l? 3. The name of the HAVE_XX flag in config.h 4. The name which then shows up in the output of kdc --builtin-hdb 5. The corresponding database type name in [kdc] database = { dbname = XX:foo } 6. Document what --with-db-type-preference is supposed to change. 7. What default filenames are made in localstatedir for each of the databases and are any suffixes added to what I specify in the config file (the dbame foo above)? Without this it't very hard to get what you want or even know what you want ;-) Example: I configured with: ../heimdal-7.5.0/configure --with-libintl --prefix=/usr/heimdal-7.5.0 --disable-kcm --with-openssl --disable-otp --enable-pthread-support --with-readline --enable-digest --with-ipv6 --enable-kx509 --without-openldap --enable-pk-init --with-x --localstatedir=/var/heimdal --disable-silent-rules --disable-ndbm-db --enable-lmdb-db --without-berkeley-db --without-sqlite3 --with-db-type-preference="lmdb" I got: # /usr/heimdal-7.5.0/libexec/kdc --builtin-hdb builtin hdb backends: mdb:, lmdb:, keytab:, sqlite: mdb? lmdb? are these synonyms? I did say --without-sqlite3 and did get sqlite, is that correct? What is the keytab:? If I start the kdc it makes a file with .mdb suffix, so now did I get what I wanted? Then when I specify to configure --with-XX and configure can not find XX on the system I compile on, I would prefer an error istead of an silent ommission of that database type. Without this, the amount of "magic" to make a KDC is quite high. Harald.