Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

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

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

Dont install .svn metadata with the sendmail install.

Submitted by: marcel
Approved by: imp (mentor, implicit)
MFC after: 3 days

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

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

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

Prevent a 'make SHARED=symlinks install' followed by 'make install' from
failing by removing the symlink before trying to install the actual files.

Noticed by: bde
MFC after: 5 days

Drop support for COPY, -c has been the default mode of install(1)
for a long time now.

Approved by: bde

s/${INSTALL} -c/${INSTALL} ${COPY}/

Unbreak installworld. Revision 1.41 of src/usr.bin/xinstall/xinstall.c
made the usage here incorrect.

Note that the change to install may cause other things to break, such as
the advice in src/etc/defaults/make.conf:

# Compare before install
#INSTALL=install -C

If users actually use this, any ${INSTALL} -d invocations in an installworld
will also fail.

Submitted by: David Wolfskill <david@catwhisker.org>
MFC after: 2 days

Do not change the directory permissions for the source area, just the
install area.

Noticed by: msmith

Add a MAINTAINER= line so people know who to blame

Install the sendmail cf building tools (contrib/sendmail/cf) in
/usr/share/sendmail/cf.

PR: 19790