MFC r314653:

libexec: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

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

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

Since clang 3.2 now has an option to suppress warnings about implicitly
promoted K&R parameters, remove the workarounds added for sendmail
components in r228558.

MFC after: 1 week

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 after: 2 weeks

Fix typos in the comments about clang warnings in several
sendmail-related Makefiles.

Spotted by: arundel
MFC after: 1 week

Unfortunately, clang gives warnings about sendmail code that cannot be
turned off yet. Since this is contrib code, and we don't really care
about the warnings, just turn make them non-fatal for now.

MFC after: 1 week

Make WARNS=6 the default for libexec/.

Just like bin/ and sbin/, I think setting WARNS to the highest value
possible will make it more attractive for people to fix warnings.

- The WARNS variable is set in the Makefile in the directory of the
application itself, making it more likely that it will be removed out
of curiosity to see what happens.
- New applications will most likely build with WARNS=6 out of the box,
because the author would more likely fix the warnings during
development than lower WARNS.

Unfortunately almost all apps in libexec require a lowered value of
WARNS.

Remove kludges intended to support src trees with partial obj trees.

Discussed with: ru

Remove MAINTAINER= lines from individual Makefiles in favor of the
MAINTAINER file (which already had entries for sendmail).

Update build infrastructure for sendmail 8.12.

Lock down with WFORMAT?=1, with overrides in the subdirectories which
are not yet warning-clean. Tested on i386 and alpha.

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

Set the default manual section for libexec/ to 8.

Add a MAINTAINER= line so people know who to blame

Style fixes

mail.local(8) is no longer installed as a set-user-id binary.

Users may have to adjust their configuration to call mail.local as root
by adding the F=S flag to the local mailer. Most probably already have this.

Give users a way to alter the sendmail (and related utilities) build
environment so they can enable functionality such as SASL, LDAP, Hesiod.

The rest of the changes needed to support the new version of sendmail (8.11.0).
Beyond changes to the build system, this includes fixing up the sample
freebsd.mc configuration for changes in defaults and syntax, removing
outdated documentation, and updating the release notes.

$Id$ -> $FreeBSD$

Remove useless `BINOWN=root' now that it is the default.

Use sendmail-8.9.1 mail.local (with our changes). It has LMTP support.

Typos.

style(9) nits
Submitted by: bde

Be extra paranoid about the length of data returned from gethostbyaddr or
gethostbyname.
Submitted by: Julian Assange

Switch the effective uid to that of the user when writing mail files,
allowing quotas to be enforced on mail spools.

PR: 1111
Submitted by: Charles Henrich <henrich@crh.cl.msu.edu>

Store temporary files in /var/tmp instead /tmp. This should avoid
a possible disk overflow for enormous large mails.
Submitted by: grog

Makefile.dist is a non-bmaked version of Makefile. We don't want it.

This commit was generated by cvs2svn to compensate for changes in r27847,
which included commits to RCS files with non-trunk default branches.

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

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.

Totally botched ths patch...revert back to Rev 1.7, and request a
proper context diff from the submitter...

Last time I trust 'sucess's on a non-context diff...

Pointed out by: Bill Fenner <fenner@parc.xerox.com>

Fixes:

>Description:

/usr/libexec/mail.local runs as root. As such is can fill up a
mailbox on a quota'd filesystem, and keep going... Makes quota's
almost useless in an ISP environment.

Closes: PR#bin/1111

Submitted by: Charles Henrich <henrich@crh.cl.msu.edu>

add forgotten $Id$

Don't use __dead or __pure in user code. They were obfuscations
for gcc >= 2.5 and no-ops for gcc >= 2.6. Converted to use __dead2
or __pure2 where it wasn't already done, except in math.h where use
of __pure was mostly wrong.

Introduce a -b option for sites who are not interested in the old biff
service. (Avoid a ``in_vain'' warning...)

Another round of various man page cleanups.

Revert fsync ifdef behaviour and name, now default variant acts like
original one.
Suggested by: peter

Put fsync under #ifdef EXTRA_SANITY and turn it off by default.
fsync here cause real disk trashing when large UUCP mail chanks
parsed.

Remove trailing whitespace.

Update to new make macros and disable Kerberos because we haven't got it
set up right yet.

This commit was generated by cvs2svn to compensate for changes in r1592,
which included commits to RCS files with non-trunk default branches.