* config.sub: Add support for 16-bit Intel x86.

Signed-off-by: Ben Elliston <bje@gnu.org>

ChangeLog

+2017-04-02  Andrew Jenner  <andrew@codesourcery.com>
+	    Rask Ingemann Lambertsen  <rask@sygehus.dk>
+
+	* config.sub: Add support for 16-bit Intel x86.
+
 2017-03-21  Pip Cet  <pipcet@gmail.com>
 
 	* config.sub: Recognise wasm32.

config.sub

@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-03-21'
+timestamp='2017-04-02'
 
 # 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
@@ -263,7 +263,7 @@ case $basic_machine in
 	| fido | fr30 | frv | ft32 \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
-	| i370 | i860 | i960 | ia64 \
+	| i370 | i860 | i960 | ia16 | ia64 \
 	| ip2k | iq2000 \
 	| k1om \
 	| le32 | le64 \
@@ -389,7 +389,7 @@ case $basic_machine in
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
 	| hexagon-* \
-	| i*86-* | i860-* | i960-* | ia64-* \
+	| i*86-* | i860-* | i960-* | ia16-* | ia64-* \
 	| ip2k-* | iq2000-* \
 	| k1om-* \
 	| le32-* | le64-* \

testsuite/config-sub.data

@@ -191,6 +191,7 @@ i686-kopensolaris5.11-gnu			i686-pc-kopensolaris5.11-gnu
 i786-elf					i786-pc-elf
 i860						i860-unknown-sysv
 i960						i960-unknown-none
+ia16						ia16-unknown-none
 ia64						ia64-unknown-none
 ibm						i370-ibm-aix
 ip2k						ip2k-unknown-none