pam-afs-session To-Do List

Portability:

 * Mac OS X Lion ships with Heimdal Kerberos with an MIT Kerberos
   compatibility shim on top of it, and the latter does not implement
   krb5_appdefault_*.  This means that pam-afs-session cannot get
   configuration from krb5.conf on Mac OS X Lion.  Find a way to link
   directly to the underlying Heimdal libraries so that the module can
   call the real krb5_appdefault_* functions.