* config.sub: Import latest version.

From-SVN: r243961

ChangeLog

+2016-12-29  Ben Elliston  <bje@gnu.org>
+
+	* config.sub: Import latest version.
+
 2016-12-26  Alexander Ivchenko  <alexander.ivchenko@intel.com>
 
 	* MAINTAINERS (Write After Approval): Add myself.

config.sub

@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2016 Free Software Foundation, Inc.
 
-timestamp='2016-11-19'
+timestamp='2016-12-24'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1409,7 +1409,7 @@ case $os in
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
 	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-	      | -onefs* | -tirtos* | -phoenix* | -fuchsia*)
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1638,6 +1638,9 @@ case $basic_machine in
 	sparc-* | *-sun)
 		os=-sunos4.1.1
 		;;
+	pru-*)
+		os=-elf
+		;;
 	*-be)
 		os=-beos
 		;;