--- a/build-aux/config.sub	Wed Apr 11 16:27:03 2018 -0700
+++ b/build-aux/config.sub	Mon Apr 16 08:20:53 2018 -0700
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2018-03-08'
+timestamp='2018-04-16'
 
 # 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
@@ -254,7 +254,7 @@
 	| ba \
 	| be32 | be64 \
 	| bfin \
-	| c4x | c8051 | clipper \
+	| c4x | c8051 | clipper | csky \
 	| d10v | d30v | dlx | dsp16xx \
 	| e2k | epiphany \
 	| fido | fr30 | frv | ft32 \
@@ -335,6 +335,10 @@
 		;;
 	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
 		;;
+	m9s12z | m68hcs12z | hcs12z | s12z)
+		basic_machine=s12z-unknown
+		os=-none
+		;;
 	ms1)
 		basic_machine=mt-unknown
 		;;
@@ -378,7 +382,7 @@
 	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
-	| c8051-* | clipper-* | craynv-* | cydra-* \
+	| c8051-* | clipper-* | craynv-* | csky-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
 	| e2k-* | elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \