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+2012-03-12 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * 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.
+ * system.h (TARGET_HANDLE_PRAGMA_EXTERN_PREFIX): Poison.
+ * 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 (Binaries): Remove Tru64 UNIX reference.
+ (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.
+
2012-03-12 Richard Guenther <rguenther@suse.de>
* config/arm/arm.c (neon_dereference_pointer): Do not call