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)

Build lib/ with WARNS=6 by default.

Similar to libexec/, do the same with lib/. Make WARNS=6 the norm and
lower it when needed.

I'm setting WARNS?=0 for secure/. It seems secure/ includes the
Makefile.inc provided by lib/. I'm not going to touch that directory.
Most of the code there is contributed anyway.

Bump the version of all non-symbol-versioned shared libraries in
preparation for 8.0-RELEASE. Add the previous version of those
libraries to ObsoleteFiles.inc and bump __FreeBSD_Version.

Reviewed by: kib
Approved by: re (rwatson)

Bump library versions in preparation for 7.0.

Ok'd by: kan

Respect MK_INET6_SUPPORT.

Bump the shared library version number of all libraries that have not
been bumped since RELENG_5.

Reviewed by: ru
Approved by: re (not needed for commit check but in principle...)

Zap now-unused SHLIB_MINOR

MAN[1-9] -> MAN.

Reduce shlib major that is bumped by my mistake.
We don't need bumping it in this time.

IPv6 support.
This is required for forthcoming IPv6 ready installer.

Obtained from: KAME

Replace beforeinstall target with new variables used by .mk system.

Reviewed by: marcel, and make world

Fix style bugs and ordering

Submitted by: bde

sigset_t change (part 5 of 5)
-----------------------------

Most of the userland changes are in libc. For both the alpha
and the i386 setjmp has been changed to accomodate for the
new sigset_t. Internally, libc is mostly rewritten to use the
new syscalls. The exception is in compat-43/sigcompat.c

The POSIX thread library has also been rewritten to use the
new sigset_t. Except, that it currently only handles NSIG
signals instead of the maximum _SIG_MAXSIG. This should not
be a problem because current applications don't use any
signals higher than NSIG.

There are version bumps for the following libraries:
libdialog
libreadline
libc
libc_r
libedit
libftpio
libss

These libraries either a) have one of the modified structures
visible in the interface, or b) use sigset_t internally and
may cause breakage if new binaries are used against libraries
that don't have the sigset_t change. This not an immediate
issue, but will be as soon as applications start using the
new range to its fullest.

NOTE: libncurses already had an version bump and has not been
given one now.

NOTE: doscmd is a real casualty and has been disconnected for
the moment. Reconnection will eventually happen after
doscmd has been fixed. I'm aware that being the last one
to touch it, I'm automaticly promoted to being maintainer.
According to good taste this means that I will receive a
badge which either will be glued or mechanically stapled,
drilled or otherwise violently forced onto me :-)

NOTE: pcvt/vttest cannot be compiled with -traditional. The
change cause sys/types to be included along the way which
contains the const and volatile modifiers. I don't consider
this a solution, but more a workaround.

For functions ftpGetURL, ftpPutURL, ftpLogin it was impossible to know
FTP error return code because
1) They return NULL, it means that ftpErrno can't be used because
it takes file pointer
2) They don't have FILE-type argument as f.e. ftpGet/ftpPut to use
it for ftpErrno instead.

For that functions I add yet one int* type argument to store
FTP error return code. It is impossible to add some global variable
for that reason, because user can have multiply FTP connections
opened at the same time.

So, interface changed, major number bumped.
Userland changes will follows.

Minor bugfixes, the code:
Forget to close file in few places, when failure occurse
Forget to NULL cached host name, multiply free is possible

Make libftpio 64-bit clean.

Major version bumped (by me) since the ftpGet() public interface has
changed (an "int *" becomes and "off_t *")

Submitted by: Jason Thorpe <thorpej@nas.nasa.gov>, PR#1640

cmp -s || install -c ==> install -C

Add an ftpErrString() function for returning human readable failure
codes.
Submitted-By: Archie Cobbs <archie@whistle.com>

Makefile:
Add -Wall to CFLAGS

ftpio.h:
It's ftpGetModTime, not ftpModTime

This commit was generated by cvs2svn to compensate for changes in r16420,
which included commits to RCS files with non-trunk default branches.

Bring in a new library `libftpio', so named to avoid clashes with older
packages and also sort of give the (correct) impression that this basically
sits on top of stdio and deals with stream pointers (FILE*).