Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Switch the default WARNS level for sbin/ to 6.

Submitted by: Ulrich Spörlein

Add NO_MAN for the static variant of geom(8). Both the RESCUE and the
RELEASE_CRUNCH builds use NO_MAN anyway, so this change is primarily
to avoid that developers have to set NO_MAN manually when they build
the static variant.

Allow building a static geom(8) for release related crunched
binaries. In particular, this allows geom to be added to the
boot_crunch binary on ia64.

Replace checks for RESCUE in sources with checks for STATIC_GEOM_CLASSES
and define STATIC_GEOM_CLASSES when building the rescue binary. This way
geom can more easily be part of other crunched binaries, as it requires
only a Makefile change.

Make it possible to build glabel into rescue geom(8) utility.

Ok'ed by: marcel
No objection: -current@

Allow building of a special rescue version of geom that
has a subset of the classes compiled-in.

Bring in geom(8) utility. It is an universal utility for operating on
GEOM classes. It works by loading a shared library via dlopen(3) mechanism
with class-specific code, it is also responsible for communicating with
GEOM via libgeom(3).
Per-class shared libraries are going to be stored in /lib/geom/ directory.
It provides also few standard commands like 'list', 'load' and 'unload'
for existing classes which aren't aware of geom(8).
More info will be send on freebsd-current@ mailing list.

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