Add HP-UX -mt option from specs to new hpux11.opt

[Joseph S. Myers]

In preparation for the driver only accepting options listed in .opt
files, and not other options that simply happen to match some spec,
this patch adds the -mt option from HP-UX specs to a new hpux11.opt
file.  (This option would only have worked previously for driver
commands not running cc1, because of all -m* options being passed down
to cc1 automatically.)

Tested building cc1 and xgcc for crosses to: ia64-hp-hpux11.23
hppa2.0w-hp-hpux11.23 hppa64-hp-hpux11.23.  OK to commit?

2011-01-30  Joseph Myers  <joseph@codesourcery.com>

	* config/hpux11.opt: New.
	* config.gcc (hppa*64*-*-hpux11*, hppa[12]*-*-hpux11*,
	ia64*-*-hpux*): Use hpux11.opt.

Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc	(revision 169317)
+++ gcc/config.gcc	(working copy)
@@ -1091,7 +1091,7 @@ hppa*64*-*-hpux11*)
 		;;
 	esac
 	extra_options="${extra_options} pa/pa-hpux.opt \
-		       pa/pa-hpux1010.opt pa/pa64-hpux.opt"
+		       pa/pa-hpux1010.opt pa/pa64-hpux.opt hpux11.opt"
 	need_64bit_hwint=yes
 	tmake_file="pa/t-pa64 pa/t-pa-hpux pa/t-hpux-shlib"
 	# Set the libgcc version number
@@ -1127,7 +1127,8 @@ hppa[12]*-*-hpux11*)
 	esac
 	tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h \
 		 pa/pa-hpux.h pa/pa-hpux1010.h pa/pa-hpux11.h"
-	extra_options="${extra_options} pa/pa-hpux.opt pa/pa-hpux1010.opt"
+	extra_options="${extra_options} pa/pa-hpux.opt pa/pa-hpux1010.opt \
+		       hpux11.opt"
 	case ${target} in
 	*-*-hpux11.[1-9]*)
 		tm_file="${tm_file} pa/pa-hpux1111.h"
@@ -1592,7 +1593,7 @@ ia64*-*-hpux*)
 	use_collect2=no
 	c_target_objs="ia64-c.o"
 	cxx_target_objs="ia64-c.o"
-	extra_options="${extra_options} ia64/ilp32.opt"
+	extra_options="${extra_options} ia64/ilp32.opt hpux11.opt"
 	use_gcc_stdint=wrap
 	tm_file="${tm_file} hpux-stdint.h"
 	;;
Index: gcc/config/hpux11.opt
===================================================================
--- gcc/config/hpux11.opt	(revision 0)
+++ gcc/config/hpux11.opt	(revision 0)
@@ -0,0 +1,30 @@
+; HP-UX 11 options.
+
+; Copyright (C) 2011
+; Free Software Foundation, Inc.
+;
+; This file is part of GCC.
+;
+; GCC 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 3, or (at your option) any later
+; version.
+;
+; GCC 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 GCC; see the file COPYING3.  If not see
+; <http://www.gnu.org/licenses/>.
+
+; See the GCC internals manual (options.texi) for a description of
+; this file's format.
+
+; Please try to keep this file in ASCII collating order.
+
+mt
+Driver RejectNegative
+
+; This comment is to ensure we retain the blank line above.

-- 
Joseph S. Myers
joseph@codesourcery.com