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

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

Merge binutils 2.17.50 to head. This brings a number of improvements to
x86 CPU support, better support for powerpc64, some new directives, and
many other things. Bump __FreeBSD_version, and add a note to UPDATING.

Thanks to the many people that have helped to test this.

Obtained from: projects/binutils-2.17

Updated Bmake framework for Binutils 2.15.

style.Makefile(5):
Use WARNS?= instead of WARNS=

For this to work properly for all part is the subdirectories
the WARNS assignments in Makefile.inc0 are moved to the correspondning
Makefile.inc.

Approved by: obrien (binutils maintainer)
Tested by: make universe

Removed all the complexities when installing the strip(1) binary.

Submitted by: bde

strip wasn't stripped since we stopped to include bsd.own.mk from sys.mk.

Removed invasion into these makefiles by the "legacy" stuff;
I have a better fix in the works.

libbinutils.a needs basename(3); when the latter is provided
by -legacy, liblegacy.a should come last in the LDADD list.

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

Approved by: bde

Update to Binutils 2.12.0 release.

Turn up WARNS as high as possible.

Tested by: gcc31, gcc32, /usr/bin/cc

Clean up the formatting.

Use `${dir}/libfoo.a' instead of `-L${dir} -lfoo' for local static
libraries in LDADD so that `make checkdpadd' doesn't report non-errors.

Fixed some style bugs (the usual ones for DPADD and LDADD, and misformatting
of $FreeBSD$).

$Id$ -> $FreeBSD$

Ignore return value for strip. Avoids make world going pop
because of

strip maybe_stripped
strip: maybe_stripped: File format not recognized
*** Error code 1

in I/usr/src/gnu/usr.bin/binutils/strip

Add missing DPADD's.

Restructure the binutils hierarchy somewhat in order to better
support building it for variant architectures. It was already
becoming clear that the former structure was too rigid and didn't
scale well.

The usual sort of makefile magic arranges to .include an architecture
specific makefile "Makefile.${MACHINE_ARCH}" in each directory
where it exists. Also, sources will be found in each subdirectory
"${MACHINE_ARCH}" that exists. This is all taken care of automatically
by the top level "Makefile.inc0".

This all seems to work right for the i386 now. I have also converted
those alpha pieces already present to the new schema as best I
could.

Also: change the BINDIR on the i386 to /usr/libexec/elf for "ar"
and "ranlib". They are not object format independent enough to
put into /usr/bin.

Fix the broken installation of strip. It tried to use the installed
strip program (via "install") to strip itself. But the program
wasn't executable because "install" hadn't made it so yet. I
borrowed the method used for the old strip to get around this.

This commit was generated by cvs2svn to compensate for changes in r33975,
which included commits to RCS files with non-trunk default branches.

Add bmakefiles for building binutils from the contrib tree.

This finishes up the binutils import. But I am leaving it disabled
in "src/gnu/usr.bin/Makefile" for now. It is not used by anything
yet, so I'll take this opportunity to run one more round of tests
before enabling it.