The recent upgrade of rpcgen(1) warrants some special actions to be taken
to avoid errors during "make worlds".

1) Get -current sources from June 26 or thereabouts.
2) `make clean' in usr.bin/rpcgen, lib/librpcsvc, usr.sbin/rpc.*, libexec/rpc.*
3) `make & make install' in usr.bin/rpcgen.
4) `make & make install' in lib/librpcsvc
5) `make' ...

The reason for this is that rpcgen(1) now generates prototypes in the
generated header files in librpcsvc.

-pk