diff -rupN old/lib/config.sub new/lib/config.sub
--- old/lib/config.sub	2014-12-28 01:23:54.000000000 +0800
+++ new/lib/config.sub	2020-10-29 15:55:25.945135240 +0800
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2014 Free Software Foundation, Inc.
 
-timestamp='2014-12-03'
+timestamp='2020-10-29'
 
 # 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
@@ -1373,7 +1373,7 @@ case $os in
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
 	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* \
+	      | -aos* | -aros* | -lyos* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
