port the GCC3 gcc/config/ia64/netbsd.h. only change is to remove a call

to the no longer available/required NETBSD_OS_CPP_BUILTINS_LP64() macro.

gnu/dist/gcc4/gcc/config/ia64/netbsd.h

@@ -0,0 +1,56 @@
+/* Definitions of target machine for GNU compiler,
+   for ia64/ELF NetBSD systems.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define TARGET_OS_CPP_BUILTINS()		\
+  do						\
+    {						\
+      NETBSD_OS_CPP_BUILTINS_ELF();		\
+    }						\
+  while (0)
+
+
+/* Extra specs needed for NetBSD/ia-64 ELF.  */
+
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS			\
+  { "netbsd_cpp_spec", NETBSD_CPP_SPEC },	\
+  { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF },	\
+  { "netbsd_entry_point", NETBSD_ENTRY_POINT },
+
+
+/* Provide a LINK_SPEC appropriate for a NetBSD/ia64 ELF target.  */
+
+#undef LINK_SPEC
+#define LINK_SPEC "%(netbsd_link_spec)"
+
+#define NETBSD_ENTRY_POINT "_start"
+
+
+/* Provide a CPP_SPEC appropriate for NetBSD.  */
+
+#undef CPP_SPEC
+#define CPP_SPEC "%(netbsd_cpp_spec)"
+
+
+/* Attempt to enable execute permissions on the stack.  */
+#define TRANSFER_FROM_TRAMPOLINE NETBSD_ENABLE_EXECUTE_STACK
+
+#define TARGET_VERSION fprintf (stderr, " (NetBSD/ia64 ELF)");