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)

Our OS name is "freebsd", not "freebsdelf".

Change script to get the machine type from `uname -m' and make
the binutils headers for (machine)-unknown-freebsdelf.

Also copy the bfd.h header to an architecture specific directory
because there are two fundamental lines that differ (32-bit vs 64-bit)
between i386 and alpha.

The config.h for libbinutils generates the same on alpha as i386,
so I didn't change that (though I was tempted!).

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.

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.