The AFP module tests accounts against the Apple Filing Protocol service.
This AFP module leverages the afpfs-ng FUSE-based client (http://alexthepuffin.googlepages.com/home).
The current Medusa autoconf setup requires that the afpfs-ng header files
be installed to /usr/include/afpfs-ng and the libary be located at
/usr/lib/libafpclient.so.0. If this does not match your setup, modifications
to the autoconf configuration will be necessary.
Medusa Documentation