* libdb: enable 1.85 compat api for krb5
* krb5: improve package
remove dependency on c-ares
use external shared libdb
use sample confs for defaults
provide check_krb5 aclocal
fix krb5-config --libs
* krb5: change defaults in kdc.conf
lib/krb5/plugins/tls/k5tls.so links against libssl, and
lib/krb5/plugins/preauth/pkinit.so against libcrypto, so openssl
is needed.
bin/kprop and bin/kpropd links against libutil if available.
Also, add --without-system-verto to fix problem if building krb5
multiple times, with subsequent builds using the already installed
libverto without installing it.
Vishal Biswas
Fredrik Fornwall