MFC r307800, r307801

r307800:

Sources from the "current" build tree and generated sources in the
object tree should be used instead of sources and headers from the
already installed source tree on the build host.

This was noticed while addressing issues in the upcoming amd update.

r307801:

Align whitespace.

r307801 is related to r307800 however it was a separate commit to
HEAD in order to maintain a separation between the functional change
and a correction of style.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

We now have to use part of the vendor supplied xdr_func.c.
util renamed to strutil to be more clear of its purpose.

For variables that are only checked with defined(), don't provide
any fake value.

Mark all internal libraries with INTERNALLIB.

Use the native mount and nfs_prot headers.
Also generate nfs_prot_x.c in ANSI-C mode.

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

$Id$ -> $FreeBSD$

Fully use our own generated files for NFSv3.

With the change to the 4.4Lite2 mount interface we don't need special
conf files.

bmake framework for contrib_amd