Remove obsolete Tru64 UNIX V5.1B support

[Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>]

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The Tru64 UNIX V5.1 port has been obsoleted in GCC 4.7, and it's now
time to remove it from mainline.  The following patch does just that,
and should be mostly uncontroversial, like removing target-specific
fixincludes hacks, files, and testsuite support.

Then, there are target-specific features only used by this port (like
support for #pragma extern_prefix), and workarounds for target-specific
bugs (at least according to the comments).  In the last case, I've been
a bit aggressive by removing the workarounds.  It may well be that other
targets depend on them, but if not, we'd continue to carry garbage
around for years to come.

This is where I need explicit approval and/or guidance:

* There are some fixincludes hacks that from their names seem to be
  osf-specific, but are not restricted to alpha*-dec-osf*.  Bruce,
  what's the best way to handle those?  Disable them e.g. with a mach
  clause like unused-alpha*-dec-osf* and see if anything else breaks?

* In the alpha backend, there are a couple of cases that might be
  osf-specific, but I cannot tell for certain:

  macro				  osf5.h        alpha.h

  TARGET_AS_CAN_SUBTRACT_LABELS	  1		TARGET_GAS

  I cannot tell if !TARGET_GAS configurations exist, especially Alpha VMS.
  Also, in alpha.h there are some references to mips-tfile, which is
  gone with osf.  If there are no non-gas configrations remaining, that
  stuff can go, too.

  TARGET_HAS_XFLOATING_LIBS	  1		TARGET_LONG_DOUBLE_128

  Same here: any configurations with !TARGET_LONG_DOUBLE_128?

  TARGET_LD_BUGGY_LDGP		  1		0

  I've ripped this out, although a considerable part needs to remain to
  support flag_reorder_blocks_and_partition.

  HAVE_STAMP_H                    1

  In my understanding, this is purely a OSF thing and can go, but maybe
  other OSes on alpha mimiced OSF here?

  Then there's struct machine_function.some_ld_name in alpha.c.  The
  comment claims that it's for OSF, but this cannot be true: it's only
  used for TLS local dynamic, but while Tru64 UNIX V5.1 has native TLS
  support, the model is completely different from the ELF one.

  None of this is critical and further cleanups can certainly be done as
  followups.

* As I've mentioned, I've ripped out the #pragma extern_prefix support:
  while VMS has something similar, it doesn't use the common code.

* In libjava, there were several workarounds for OSF bugs/quirks.  I've
  ripped them out as explained above.

  There's one particular issue: the change to java/io/File.java required
  my to regenerate the .class file in classpath.  I've used Sun javac
  -target 1.5 for that and hope I got it right.

* The libstdc++ testsuite is messy since every thing pthread test
  includes the complete list of targets where it should be run, and the
  options required.  I've long meant to clean this up, but this will
  have to wait until after osf and irix are gone from the tree.

* With the removal of #pragma extern_prefix support, gcc/po/gcc.pot
  needs to be regenerated.  Since I'm not positive I have the right
  tools and trying found unrelated changes, I've omitted that change.

Unfortunately, I had to attach the patch compressed as it was too large
for the mailing list.

The patch was tested in two different ways:

* Full i386-pc-solaris2.10 bootstrap to make sure I didn't break any
  shared code.

* i386-pc-solaris2.10 x alpha-freebsd6.0 cross-build (C-only) to make
  sure the alpha changes are syntactically correct.

Ok for mainline?

	Rainer


2012-03-04  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	libstdc++-v3:
	* configure.host: Remove osf* handling.
	* config/os/osf: Remove.
	* doc/xml/manual/using.xml: Remove OSF reference.

	* testsuite/18_support/pthread_guard.cc: Remove alpha*-*-osf*
	handling.
	* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
	Likewise.
	* testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
	Likewise.
	* testsuite/21_strings/basic_string/pthread18185.cc: Likewise.
	* testsuite/21_strings/basic_string/pthread4.cc: Likewise.
	* testsuite/22_locale/locale/cons/12658_thread-1.cc: Likewise.
	* testsuite/22_locale/locale/cons/12658_thread-2.cc: Likewise.
	* testsuite/23_containers/list/pthread1.cc: Likewise.
	* testsuite/23_containers/list/pthread5.cc: Likewise.
	* testsuite/23_containers/map/pthread6.cc: Likewise.
	* testsuite/23_containers/vector/debug/multithreaded_swap.cc:
	Likewise.
	* testsuite/27_io/basic_ofstream/pthread2.cc: Likewise.
	* testsuite/27_io/basic_ostringstream/pthread3.cc: Likewise.
	* testsuite/30_threads/async/42819.cc: Likewise.

	* libstdc++-v3/testsuite/30_threads/async/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/any.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/async.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/launch.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/sync.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/call_once/39909.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/call_once/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/call_once/call_once1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/members/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/members/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/50862.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/members/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/members/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/future/cons/move.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/45133.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/get.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/get2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/share.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/valid.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/wait.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/wait_for.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/wait_until.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/unlock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/alloc.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/move.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/move_assign.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/get_future.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/get_future2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke4.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke5.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/reset.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/reset2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/swap.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/valid.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/alloc.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/move.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/move_assign.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/get_future.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/get_future2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_value.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_value3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/swap.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/native_handle/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/try_lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/try_lock/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/unlock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/lock/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/cons/move.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/45133.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/get.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/get2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/valid.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/wait.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/wait_for.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/wait_until.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/5.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/6.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/7.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/8.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/9.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/moveable.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/5.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/hardware_concurrency.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/swap/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/native_handle/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_for/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_for/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_for/3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_until/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_until/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/modifiers/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/modifiers/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/ext/rope/pthread7-rope.cc: Likewise.
	* libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/thread/default_weaktoshared.cc:
	Likewise.
	* libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.

	libobjc:
	* configure.ac (enable_objc_gc): Remove alpha*-dec-osf* handling.
	* configure: Regenerate.

	* thr.c (_XOPEN_SOURCE): Define unconditionally.

	libjava:
	* configure.ac (alpha*-dec-osf*): Remove.
	* configure: Regenerate.
	* configure.host (alpha*-dec-osf*): Remove.

	* gnu/java/net/natPlainDatagramSocketImplPosix.cc (setOption): Use
	IPV6_MULTICAST_IF unconditionally.
	* gnu/java/net/natPlainDatagramSocketImplWin32.cc (setOption):
	Likewise.
	* gnu/java/net/natPlainSocketImplPosix.cc
	(gnu::java::net::PlainSocketImpl::accept): Use ::accept instead of
	_Jv_accept.
	* include/posix-signal.h [__alpha__ && __osf__]: Remove.
	* include/posix.h (_POSIX_PII_SOCKET): Don't define.
	(_Jv_accept): Remove.

	* java/io/File.java (File._access): Rename to access.
	Change callers.
	(File._stat): Likewise.
	* java/io/File.h: Regenerate.
	* classpath/lib/java/io/File.class: Regenerate.
	* java/io/natFilePosix.cc (java::io::File::_access): Rename to
	access.
	(java::io::File::_stat): Rename to stat.
	* java/io/natFileWin32.cc: Likewise.

	* testsuite/libjava.jni/jni.exp (gcj_jni_get_cxxflags_invocation):
	Remove alpha*-dec-osf* handling.
	* testsuite/libjava.jvmti/jvmti-interp.exp
	(gcj_jni_compile_c_to_so): Likewise.
	* testsuite/libjava.jvmti/jvmti.exp (gcj_jvmti_compile_cxx_to_o):
	Likewise.

	libitm:
	* configure.tgt (*-*-osf*): Remove.
	* configure: Regenerate.

	libgomp:
	* configure.tgt (alpha*-dec-osf*): Remove.

	* config/osf/sem.h: Remove.
	* config/posix/lock.c (_XOPEN_SOURCE): Define unconditionally.

	libgfortran:
	* configure.ac: Remove Tru64 reference.
	* acinclude.m4 (LIBGFOR_GTHREAD_WEAK): Remove alpha*-dec-osf*
	handling.
	* configure: Regenerate.
	* intrinsics/c99_functions.c [__osf__]: Remove.

	libgcc:
	* config.host: Remove alpha*-dec-osf5.1* handling.
	* config/alpha/gthr-posix.c: Remove.
	* config/alpha/libgcc-osf5.ver: Remove.
	* config/alpha/osf5-unwind.h: Remove.
	* config/alpha/t-osf-pthread: Remove.
	* config/alpha/t-slibgcc-osf: Remove.
	* config/t-crtfm (crtfastmath.o): Remove -frandom-seed.
	* gthr-posix.h [!_REENTRANT && __osf__] (_REENTRANT): Don't define.
	[__osf__ && _PTHREAD_USE_MANGLED_NAMES_]: Remove.
	* mkmap-flat.awk: Remove osf_export handling.

	gnattools:
	* configure.ac: Remove alpha*-dec-osf* handling.
	* configure: Regenerate.

	gcc/testsuite:
	* g++.dg/abi/rtti3.C: Remove alpha*-dec-osf* handling.
	* g++.dg/abi/thunk4.C: Likewise.
	* g++.dg/cdce3.C: Don't skip on*-dec-osf5*.
	Adapt line numbers.
	* g++.dg/compat/struct-layout-1_generate.c: Remove alpha*-dec-osf*
	handling.
	* g++.dg/cpp0x/constexpr-rom.C: Likewise.
	* g++.dg/eh/spbp.C: Likewise.
	* g++.dg/ext/label13.C: Likewise.
	* g++.dg/guality/guality.exp: Likewise.
	* g++.dg/other/anon5.C: Likewise.
	* g++.dg/other/pragma-ep-1.C: Remove.
	* g++.dg/warn/miss-format-1.C: Remove alpha*-dec-osf* handling.
	* g++.dg/warn/pr31246.C: Likewise.
	* g++.dg/warn/weak1.C: Likewise.
	* g++.old-deja/g++.eh/badalloc1.C: Likewise.
	* g++.old-deja/g++.ext/attrib5.C: Likewise.
	* gcc.c-torture/compile/limits-declparen.c: Likewise.
	* gcc.c-torture/compile/limits-pointer.c: Likewise.
	* gcc.c-torture/execute/20001229-1.c: Remove __osf__ handling.
	* gcc.dg/attr-weakref-1.c: Remove alpha*-dec-osf* handling.
	* gcc.dg/c99-stdint-6.c: Remove alpha*-dec-osf5* handling.
	* gcc.dg/c99-tgmath-1.c: Likewise.
	* gcc.dg/c99-tgmath-2.c: Likewise.
	* gcc.dg/c99-tgmath-3.c: Likewise.
	* gcc.dg/c99-tgmath-4.c: Likewise.
	* gcc.dg/compat/struct-layout-1_generate.c: Remove alpha*-dec-osf*
	handling.
	* gcc.dg/debug/pr49032.c: Likewise.
	* gcc.dg/guality/guality.exp: Likewise.
	* gcc.dg/intmax_t-1.c: Likewise.
	* gcc.dg/pr48616.c: Likewise.
	* gcc.dg/pragma-ep-1.c: Remove.
	* gcc.dg/pragma-ep-2.c: Remove.
	* gcc.dg/pragma-ep-3.c: Remove.
	* gcc.dg/torture/pr47917.c: Remove alpha*-dec-osf5* handling.
	* gcc.dg/tree-ssa/pr42585.c: Remove alpha*-dec-osf* handling.
	* gcc.misc-tests/gcov-14.c: Likewise.
	* gfortran.dg/guality/guality.exp: Likewise.
	* lib/target-supports.exp (check_weak_available): Likewise.
	(add_options_for_tls): Likewise.
	(check_ascii_locale_available): Likewise.
	* obj-c++.dg/dwarf-2.mm: Likewise.
	* objc.dg/dwarf-1.m: Likewise.
	* objc.dg/dwarf-2.m: Likewise.

	gcc/c-family:
	* c-cppbuiltin.c (c_cpp_builtins): Remove #pragma extern_prefix
	handling.
	* c-pragma.c: Remove #pragma extern_prefix documentation.
	(pragma_extern_prefix): Remove.
	(handle_pragma_extern_prefix): Remove.
	(maybe_apply_renaming_pragma): Remove #pragma extern_prefix
	handling.
	(init_pragma): Don't register extern_prefix.
	* c-pragma.h (pragma_extern_prefix): Remove.

	gcc/po:
	* EXCLUDES (mips-tdump.c, mips-tfile.c): Remove.

	gcc:
	* config.gcc (alpha*-dec-osf5.1*): Remove.
	* config.host (alpha*-dec-osf*): Remove.
	* configure.ac (*-*-osf*): Remove.
	(alpha*-dec-osf*): Remove.
	* configure: Regenerate.

	* config/alpha/host-osf.c, config/alpha/osf5.h,
	config/alpha/osf5.opt, config/alpha/va_list.h, config/alpha/x-osf:
	Remove.

	* config/alpha/alpha.h (TARGET_LD_BUGGY_LDGP): Remove.
	* config/alpha/alpha.c (struct machine_function): Update comment.
	(alpha_start_function): Remove Tru64 UNIX as handling for
	max_frame_size.
	* config/alpha/alpha.md ("exception_receiver"): Remove
	TARGET_LD_BUGGY_LDGP.
	("*exception_receiver_2"): Likewise.
	* except.c (finish_eh_generation): Remove Tru64 reference.
	* ginclude/stdarg.h [_HIDDEN_VA_LIST]: Don't undef _VA_LIST.
	* target.def (handle_pragma_extern_prefix): Remove.

	* Makefile.in (mips-tfile.o-warn): Remove.
	(ALL_HOST_BACKEND_OBJS): Remove mips-tfile.o, mips-tdump.o.
	(mips-tfile, mips-tfile.o, mips-tdump, mips-tdump.o): Remove.
	* mips-tdump.c, mips-tfile.c: Remove.

	* doc/extend.texi (Symbol-Renaming Pragmas): Remove #pragma
	extern_prefix.
	* doc/install.texi (Specific, alpha*-dec-osf5.1): Note removal.
	* doc/tm.texi.in (Misc, TARGET_HANDLE_PRAGMA_EXTERN_PREFIX):
	Remove.
	* doc/tm.texi: Regenerate.
	* doc/trouble.texi (Cross-Compiler Problems): Remove.

	gcc/ada:
	* gcc-interface/Makefile.in (alpha*-dec-osf*): Remove.
	* a-intnam-tru64.ads, mlib-tgt-specific-tru64.adb,
	s-mastop-tru64.adb, s-osinte-tru64.adb, s-osinte-tru64.ads,
	s-taprop-tru64.adb, s-tasinf-tru64.ads, s-taspri-tru64.ads,
	system-tru64.ads: Remove.

	* adaint.c (__gnat_number_of_cpus) [__alpha__ && __osf__]:
	Remove.
	[IS_CROSS] [!(__alpha__ && __osf__)]: Remove.
	* env.c [__alpha__ && __osf__]: Remove.
	* gsocket.h (_OSF_SOURCE): Remove.
	(HAVE_THREAD_SAFE_GETxxxBYyyy) [__osf__]: Remove.
	* init.c [__alpha__ && __osf__]: Remove.
	* link.c [__osf__]: Remove.
	* s-oscons-tmplt.c [__alpha__ && __osf__]: Remove.
	[__osf__ && !_SS_MAXSIZE]: Remove.
	* sysdep.c [__osf__]: Remove.
	* terminals.c [__alpha__ && __osf__]: Remove.
	[OSF1]: Remove.

	* g-traceb.ads: Remove Tru64 reference.
	* g-trasym.ads: Likewise.
	* gnat_ugn.texi (Linking a Mixed C++ & Ada Program): Likewise.
	(Summary of Run-Time Configurations): Likewise.
	* memtrack.adb: Likewise.
	* s-tassta.adb (Task_Wrapper): Likewise.

	fixincludes:
	* inclhack.def (alpha___extern_prefix): Remove.
	(alpha___extern_prefix_standards): Remove.
	(alpha___extern_prefix_sys_stat): Remove.
	(alpha_bad_lval): Remove.
	(alpha_pthread): Remove.
	(alpha_pthread_gcc): Remove.
	(alpha_pthread_init): Remove.
	* fixincl.x: Regenerate.
	* tests/base/pthread.h [ALPHA_PTHREAD_CHECK]: Remove.
	[ALPHA_PTHREAD_GCC_CHECK]: Remove.
	[ALPHA_PTHREAD_INIT_CHECK]: Remove.
	* tests/base/standards.h: Remove.
	* tests/base/sys/stat.h [ALPHA___EXTERN_PREFIX_SYS_STAT_CHECK]:
	Remove.
	* tests/base/testing.h [ALPHA___EXTERN_PREFIX_CHECK]: Remove.
	[ALPHA_BAD_LVAL_CHECK]: Remove.

	contrib:
	* config-list.mk (LIST): Remove alpha-dec-osf5.1.

	config:
	* weakref.m4 (GCC_CHECK_ELF_STYLE_WEAKREF): Remove
	alpha*-dec-osf*.

	toplevel:
	* MAINTAINERS (OS Port Maintainers): Remove osf.
	* configure.ac (enable_libgomp): Remove *-*-osf*.
	(with_stabs): Remove alpha*-*-osf*.
	* configure: Regenerate.


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-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University