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)

Add roken.h to SRCS. This fixes the compilation of slc during a
buildworld on a host running a world built with WITHOUT_KERBEROS
defined.

Fix conflicts after heimdal-1.1 import and add build infrastructure. Import
all non-style changes made by heimdal to our own libgssapi.

Fix generator glue to only expose extern struct units %s_units[] is
struct units defintition it known. The above construct is treated
as an incorrect C by GCC 4.2 otherwise.

Apply the .PHONY attribute to the ../make*/make* targets. This
causes them to be recreated (if needed) early, when doing "make
depend" here, before generating headers that depend on them.
This should fix breakages often seen while doing incremental
(NO_CLEAN) cross-builds.

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

style.Makefile(5).

OK'ed by: nectar

Try harder to pick up the correct print_version.c. The old version
works before bsd.dep.mk,v 1.44, whether .depend file exists or not,
but the contents of .depend file is wrong. With bsd.dep.mk,v 1.44,
the contents of .depend file is always broken, and build without a
.depend file is broken too. With this change it works reliably in
all cases. Ugh.

asn1_compile needs roken.h.

Overhaul of kerberos5/ makefiles. Most significant changes are:

- Dropped support for standalone builds, this was only partially
supported anyway, and required so much magic in makefiles that
made life dangerous (e.g., by using the custom yacc rules).

- Got rid of .OBJDIR in makefiles -- makes building of individual
files possible again.

- Made the .x.c transformations -j safe.

- Reprogrammed LDADD to fix static build of some utilities that
was broken.

- Fixed LDFLAGS and DPADD in the WITH_OPENLDAP case -- positively
affects the contents of .depend files.

- Removed redundant .h's from SRCS, only kept those that are
generated.

- libkrb5/ INCS were bogusly installed again with libgssapi/.

- Made build-tools real tools with their own makefiles in
separate directories. This allows us to properly track
their dependencies, etc.

- Faster build, 21% less of makefile code!

Approved by: nectar
Reviewed by: markm
Silence on: arch