fix the rs6000 vs GCC 12 includes problems.

we need a host-tool to generate one of the installed include files,
so restructure the includes build to descend into "host-libiberty"
with a "includes" target, and make "includes" target here depend
upon libiberty.a, so it will be built before "include" subdir tries
to use it to build rs6000-gen-builtins.

put the generator code for rs6000-gen-builtins into "rs6000-inc.mk".

no longer exclude rs6000-vecdefines.h in "include" subdir, and do
not try to install it from "backend" subdir anymore.

support powerpc with gcc 12.

various updates to build native GCC 12.

- for usr.bin, build libcody and link it into cc1*plus
- move makefile code for auto-build.h and version.h (was gcov-iov.h)
into makefile fragment to share them. (XXX probably best to only do
this in one place, but that's a future step.)
- many updates to handle the .c -> .cc renames
- build some x86 files with -msse2
- bump shlib versions for libgomp and libstdc++v3
- fix MKGCCCMDS=no builds
- updates for new rtl-ssa subdir
- use -std=gnu++11 for various places
- define TARGET_MACHINE and HOST_MACHINE for some places
- avoid a .BEGIN rule that writes to missing obj (ie src) sometimes

cleanups still needed:
- remove a bunch of commented -Wno* that don't seem to be needed anymore
- leave or remove various vax-specific -O0s that should no longer be
necessary for the vax-gcc port
- some "XXXGCC12" that should be may be fixable or converted to using our
standard ${CC_...} warnings (but may need to remain, in which case the
XXXGCC12 marker will be removed.)

with these, and a few other changes around the tree, i've able to build
gcc12 releases for several ports that seem to work (arm64, sparc, amd64,
i386 at least so far, have run, several others have built.)

consolidate path for gcc-version specific into GCC_INCSDIR, and
have it derived from the HAVE_GCC value so it does not need to
be modified for newer GCCs.

branches: 1.12.2; 1.12.4;
Use bsd.init.mk (instead of bsd.own.mk) consistently so that
Makefile.inc gets called before bsd.own.mk so that we get a chance
to use NOFOO easily in Makefile.inc. Use that to turn CTF off for
everything.

install into gcc-6 subdir.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

support powerpc with gcc 12.

various updates to build native GCC 12.

- for usr.bin, build libcody and link it into cc1*plus
- move makefile code for auto-build.h and version.h (was gcov-iov.h)
into makefile fragment to share them. (XXX probably best to only do
this in one place, but that's a future step.)
- many updates to handle the .c -> .cc renames
- build some x86 files with -msse2
- bump shlib versions for libgomp and libstdc++v3
- fix MKGCCCMDS=no builds
- updates for new rtl-ssa subdir
- use -std=gnu++11 for various places
- define TARGET_MACHINE and HOST_MACHINE for some places
- avoid a .BEGIN rule that writes to missing obj (ie src) sometimes

cleanups still needed:
- remove a bunch of commented -Wno* that don't seem to be needed anymore
- leave or remove various vax-specific -O0s that should no longer be
necessary for the vax-gcc port
- some "XXXGCC12" that should be may be fixable or converted to using our
standard ${CC_...} warnings (but may need to remain, in which case the
XXXGCC12 marker will be removed.)

with these, and a few other changes around the tree, i've able to build
gcc12 releases for several ports that seem to work (arm64, sparc, amd64,
i386 at least so far, have run, several others have built.)

consolidate path for gcc-version specific into GCC_INCSDIR, and
have it derived from the HAVE_GCC value so it does not need to
be modified for newer GCCs.

branches: 1.12.2; 1.12.4;
Use bsd.init.mk (instead of bsd.own.mk) consistently so that
Makefile.inc gets called before bsd.own.mk so that we get a chance
to use NOFOO easily in Makefile.inc. Use that to turn CTF off for
everything.

install into gcc-6 subdir.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

various updates to build native GCC 12.

- for usr.bin, build libcody and link it into cc1*plus
- move makefile code for auto-build.h and version.h (was gcov-iov.h)
into makefile fragment to share them. (XXX probably best to only do
this in one place, but that's a future step.)
- many updates to handle the .c -> .cc renames
- build some x86 files with -msse2
- bump shlib versions for libgomp and libstdc++v3
- fix MKGCCCMDS=no builds
- updates for new rtl-ssa subdir
- use -std=gnu++11 for various places
- define TARGET_MACHINE and HOST_MACHINE for some places
- avoid a .BEGIN rule that writes to missing obj (ie src) sometimes

cleanups still needed:
- remove a bunch of commented -Wno* that don't seem to be needed anymore
- leave or remove various vax-specific -O0s that should no longer be
necessary for the vax-gcc port
- some "XXXGCC12" that should be may be fixable or converted to using our
standard ${CC_...} warnings (but may need to remain, in which case the
XXXGCC12 marker will be removed.)

with these, and a few other changes around the tree, i've able to build
gcc12 releases for several ports that seem to work (arm64, sparc, amd64,
i386 at least so far, have run, several others have built.)

consolidate path for gcc-version specific into GCC_INCSDIR, and
have it derived from the HAVE_GCC value so it does not need to
be modified for newer GCCs.

branches: 1.12.2; 1.12.4;
Use bsd.init.mk (instead of bsd.own.mk) consistently so that
Makefile.inc gets called before bsd.own.mk so that we get a chance
to use NOFOO easily in Makefile.inc. Use that to turn CTF off for
everything.

install into gcc-6 subdir.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

consolidate path for gcc-version specific into GCC_INCSDIR, and
have it derived from the HAVE_GCC value so it does not need to
be modified for newer GCCs.

branches: 1.12.2;
Use bsd.init.mk (instead of bsd.own.mk) consistently so that
Makefile.inc gets called before bsd.own.mk so that we get a chance
to use NOFOO easily in Makefile.inc. Use that to turn CTF off for
everything.

install into gcc-6 subdir.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

Use bsd.init.mk (instead of bsd.own.mk) consistently so that
Makefile.inc gets called before bsd.own.mk so that we get a chance
to use NOFOO easily in Makefile.inc. Use that to turn CTF off for
everything.

install into gcc-6 subdir.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

install into gcc-6 subdir.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

Install GCC (gcc) headers for Sanitizers

Sync this code with gcc.old.

PR 52265 by Kamil Rytarowski

Proposed and accepted on tech-toolchain@.

Sponsored by <The NetBSD Foundation>

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

sync with gcc.old

branches: 1.8.8;
add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

add /usr/include/gcc-5 directory to the distribution and adjust the
GCC 5 parts of the build (not yet enabled) to install/look there.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

Use -f with cp, for 444 sources.

merge GCC 4.8 build.

Add MACHINE_ARCH's evbearmv5-e[bl] to work

branches: 1.4.2; 1.4.8;
- un-obsolete a pair of files we want to remain installed (XXX i wonder
if a way to have "clean builds" not run "postinstall fix obsolete" in
the $DESTDIR so that these sorts of errors will appear as set list
errors instead of being skipped
- fix the list of headers to install for GCC 4.5, based upon the mknative
${G_EXTRA_HEADERS}. XXX move the location of G_EXTRA_HEADERS.

install the posix_memalign version of mm_malloc.h, clean up

GCC 4.5 x86 installs a bunch more platform header files

move the gcc 4.5 usr.bin build makefiles to the right place.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")