ssh-askpass no longer uses wish, so chop the make rules that attempt to
locate it.
Go further to try and protect the ssh_host_key, since it's critical to
the operation and security of the machine.
security problems.
Also re-do the method we use for disconnecting ourselves from the supplied
gmp and z libraries so that this can be maintained in the future (sigh!).
1) It eliminated the need for my horrible kludge patch-ad
2) 1.2.12 has data stream compression (like gzip).
(I'm talking with the author about the remining three patches)
(.rhosts together with RSA based host authentication, and pure RSA
authentication) and improved privacy (all communications are automatically
and transparently encrypted).
