diff --git a/ChangeLog b/ChangeLog
index 17e204a..20021d6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2003-06-17  Ben Elliston  <bje@wasabisystems.com>
+
+	* config.guess (sei:*:*:seiux): Detect SEIUX running on MIPS-based
+	workstations manufactured by Sumitomo Electric Industries.
+	* config.sub (sei, -sei*): Handle. 
+	Reported by Dennis Grevenstein <dennis@pcde.inka.de>.
+	
 2003-06-13  Svein E. Seldal  <Svein.Seldal@solidas.com>
 
 	* config.sub (c4x, tic4x): Re-arrange and fix.
diff --git a/config.guess b/config.guess
index fa58459..b052dbb 100755
--- a/config.guess
+++ b/config.guess
@@ -3,7 +3,7 @@
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
 #   2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
-timestamp='2003-06-12'
+timestamp='2003-06-17'
 
 # 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
@@ -1199,6 +1199,9 @@ EOF
     *:ITS:*:*)
 	echo pdp10-unknown-its
 	exit 0 ;;
+    SEI:*:*:SEIUX)
+        echo mips-sei-seiux${UNAME_RELEASE}
+	exit 0 ;;
 esac
 
 #echo '(No uname command or uname output not recognized.)' 1>&2
diff --git a/config.sub b/config.sub
index 725707f..8ec4d0e 100755
--- a/config.sub
+++ b/config.sub
@@ -3,7 +3,7 @@
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
 #   2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
-timestamp='2003-06-13'
+timestamp='2003-06-17'
 
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
@@ -847,6 +847,10 @@ case $basic_machine in
 	sb1el)
 		basic_machine=mipsisa64sb1el-unknown
 		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
 	sequent)
 		basic_machine=i386-sequent
 		;;
@@ -1133,7 +1137,7 @@ case $os in
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
-	      | -powermax* | -dnix* | -nx6 | -nx7)
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)