1. build the static modules first, before libpam so that the static
libpam can link against the module .a files.
2. build the modules after the dynamic libpam is build, so that the
dynamic modules can link against the dynamic libpam.
- Did not import opie, passwdqc, tacplus. We need to decide what to do
with them.
- Imported radius and ssh, although they will not work until we
import libradius and re-structure our tree to install libssh.