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

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

MFC r232749:

Partially undo r228693, by removing NO_WFORMAT.clang in fsdb's Makefile,
and fixing the format string in sbin/fsdb/fsdbutil.c instead.

Note the remark "Work around a problem with format string warnings and
ntohs macros" was actually incorrect. The DIP(dp, di_nlink) macro
invocation actually returned an int, due to its ternary expression, even
though the di_nlink members of struct ufs1_dinode and struct ufs2_dinode
are both defined as int16_t.

MFC r232263:

Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to
get rid of testing explicitly for clang (using ${CC:T:Mclang}) in
individual Makefiles.

Instead, use the following extra macros, for use with clang:
- NO_WERROR.clang (disables -Werror)
- NO_WCAST_ALIGN.clang (disables -Wcast-align)
- NO_WFORMAT.clang (disables -Wformat and friends)
- CLANG_NO_IAS (disables integrated assembler)
- CLANG_OPT_SMALL (adds flags for extra small size optimizations)

As a side effect, this enables setting CC/CXX/CPP in src.conf instead of
make.conf! For clang, use the following:

CC=clang
CXX=clang++
CPP=clang-cpp

MFC r228603:

In sbin/fsdb/fsdbutil.c, work around a clang false positive with printf
format warnings and conditional operators. (See LLVM PR 11313 for more
information.)

MFC r228693:

Revert r228603, and add the workaround to sbin/fsdb/Makefile instead.

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

Approved by: re (implicit)

Make fsck WARNS=2 clean.

Downgrade WARNS level until GCC 3.4.2 warning are fixed.

Fixed style of DPADD and LDADD assignments as per style.Makefile(5).

Make this WARNS=2 clean by
- #include <timeconv.h> for _time_to_time32 et al
- use (uintmax_t) and %j
- remove unused variable 'j' (from PR 39866)

PR: 39866
Submitted by: Dan Lukes <dan@obluda.cz>
Tested by: make universe

I forgot fsdb was still sharing files with fsck.

Warning cleanup.

Format changes by peter

Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by: mike

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for sbin/ to 8.

Reviewed by: rwatson, bp
Approved by: rwatson
Obtained from: NetBSD source tree

Second part of the fsck wrappers commit. This commit enables the new fsck
code (removing the fsck/* code and replacing it with the netbsd fsck
wrapper code), and enabling some FFS-based utilities to compile.

Details:

* quotacheck, fsdb required modification to use the fsck_ffs/ code rather
than fsck/ . This might change later since quotacheck requires preen.c
which should exist in fsck/ rather than fsck_ffs/

* src/Makefile has fsck_ffs added to it so it it built as part of the tree
now

* share/doc/smm/03.fsck/ uses the SMM.doc/ stuff from fsck_ffs, not fsck.

I've tested this, and it shouldn't require any changes on your machine.
The fsck wrapper reads /etc/fsck and is command-line-compatible enough
to not require rc changes (well, most changes unless you want to do
anything nifty by specifying the fs types explicityly, read the man page
if you want further details on what it can do.)

This now allows us to support multiple filesystem types during bootup.

$Id$ -> $FreeBSD$

opt_diagnostic.h isn't needed anymore.

fsdb and fsck use the ffs code which needs opt_diagnostic.h.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Add ${DPADD}, $Id$

Adjust relative paths in Makefile to ../sbin/fsck and ../../sys/ufs/ffs

Commit FreeBSD-specific changes. Mainly to do with structure layout
differences that we dont have.

This commit was generated by cvs2svn to compensate for changes in r12048,
which included commits to RCS files with non-trunk default branches.

Whoops. RE-Import NetBSD's fsdb - I believe this was written by John Kohl.

Obtained from: NetBSD