http://www.penguinpowered.org.uk/documentation/mod_jk_apache.php

scripts/build/unix/ltconfig: .: /dev/null: not a regular file
ltconfig: you must specify a host type if you use `--no-verify'
Try `ltconfig --help' for more information.
configure: error: libtool configure failed

If you do get the above message, then you need to edit the configure script. Open
this in your favourite editor and search for the line that contains --no-verify.
There should only be one occurance of this and you should delete the entire. Delete
--no-verify, save the configure script and proceed. Once your configure script is
working, you need to run it for the real world. On my system, I did