maintainer mode

[Luke Kenneth Casson Leighton]

> Most of what I'm doing manually would be taken care of by automake,
> but, as we discussed in private a few weeks ago, we'd have to give up
> a single top-level Makefile and create Makefiles in each
> subdirectory.

is there anything wrong with that?  i would like to see this happen, as i
could split rpc_* into libraries and just do cp into pam_ntdom etc...