The patch file for the EBCDIC and TPF changes is attached
(curl_ebcdic_patch.txt).
Among the changes is a new file called config-tpf.h

The only unforeseen change for curl_unescape2 was in ldap.c.
I needed to change the prototype for unescape_elements to include the handle
(conn->data):

     -static bool unescape_elements (LDAPURLDesc *ludp)
     +static bool unescape_elements (void *data, LDAPURLDesc *ludp)

I think this is an internal function only.
If not, we'll figure out how to change it without impacting existing users.

Let me know if you have any questions or concerns.

Thanks,

-David McCreedy