diff --git a/ChangeLog b/ChangeLog
index e47c2a6d71..bdc8dfefc1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,11 @@
+Fri May 21 06:20:52 1993  Brendan Kehoe  (brendan@lisa.cygnus.com)
+
+	* config.guess: Recognize some Sequent platforms.
+
 Thu May 20 14:33:48 1993  david d `zoo' zuhn  (zoo at cirdan.cygnus.com)
 
-	* configure.in: actually use the Sun3 makefile fragment that's in config/
+	* configure.in: actually use the Sun3 makefile fragment that's in
+	config/
 
 Thu May 20 14:19:18 1993  Ken Raeburn  (raeburn@cambridge.cygnus.com)
 
diff --git a/config.guess b/config.guess
new file mode 100755
index 0000000000..eda690fca0
--- /dev/null
+++ b/config.guess
@@ -0,0 +1,181 @@
+#!/bin/sh
+# This script attempts to guess a canonical system name.
+#   Copyright (C) 1992, 1993 Free Software Foundation, Inc.
+#
+# 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
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#
+# This script attempts to guess a cononical system name similar to
+# config.sub. If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it prints an error message on stderr, and
+# exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit system type (host/target name).
+#
+# Only a few systems have been added to this list; please add others
+# (but try to keep the structure clean).
+#
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    alpha:OSF1:1.*:*)
+	echo alpha-dec-osf${UNAME_RELEASE}
+        exit 0 ;;
+    sun4*:SunOS:[5-9].*:*)
+	echo sparc-sun-solaris2
+	exit 0 ;;
+    sun4*:SunOS:*:*)
+	echo sparc-sun-sunos${UNAME_RELEASE}
+	exit 0 ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit 0 ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit 0 ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit 0 ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit 0 ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit 0 ;;
+    *:IRIX:*:*)
+	echo mips-sgi-irix${UNAME_RELEASE}
+	exit 0 ;;
+    i[34]86:AIX:*:*)
+	echo i386-ibm-aix
+	exit 0 ;;
+    *:AIX:2:3)
+	echo rs6000-ibm-aix3.2
+	exit 0 ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit 0 ;;
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit 0 ;;
+    9000/31?:HP-UX:*:*)
+	echo m68000-hp-hpux
+	exit 0 ;;
+    9000/3??:HP-UX:*:*)
+	echo m68k-hp-hpux
+	exit 0 ;;
+    9000/7??:HP-UX:*:* | 9000/8?7:HP-UX:*:* )
+	echo hppa1.1-hp-hpux
+	exit 0 ;;
+    9000/8??:HP-UX:*:*)
+	echo hppa1.0-hp-hpux
+	exit 0 ;;
+    C1*:ConvexOS:*:*)
+	echo c1-convex-bsd
+        exit 0 ;;
+    C2*:ConvexOS:*:*)
+	echo c2-convex-bsd
+        exit 0 ;;
+    CRAY*X-MP:UNICOS:*:*)
+	echo xmp-cray-unicos
+        exit 0 ;;
+    CRAY*Y-MP:UNICOS:*:*)
+	echo ymp-cray-unicos
+        exit 0 ;;
+    CRAY-2:UNICOS:*:*)
+	echo cray2-cray-unicos
+        exit 0 ;;
+    i[34]86:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux
+	exit 0 ;;
+    i[34]86:UNIX_SV:4.*:*)
+	echo i486-unknown-sysv4
+	exit 0 ;;
+    i[34]86:*:3.2:*)
+	if /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
+		echo ${UNAME_MACHINE}-unknown-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-unknown-sysv3.2
+	fi
+	exit 0 ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit 0 ;;
+esac
+
+echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
+cat >dummy.c <<EOF
+main()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+#else
+  printf("m68k-sony-newsos\n"); exit(0);
+#endif
+#endif
+
+#if defined(hp300) && !defined(hpux)
+  printf("m68k-hp-bsd\n"); exit(0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf("ns32k-encore-sysv\n"); exit(0);
+#else
+#if defined (CMU)
+  printf("ns32k-encore-mach\n"); exit(0);
+#else
+  printf("ns32k-encore-bsd\n"); exit(0);
+#endif
+#endif
+#endif
+
+#if defined(__386BSD__) || (defined(__bsdi__) && defined(__i386__))
+  printf("i386-unknown-bsd\n"); exit(0);
+#endif
+
+#if defined(sequent)
+#if defined(i386)
+  printf("i386-sequent-dynix\n"); exit(0);
+#elif defined (ns32000)
+  printf("ns32k-sequent-dynix\n"); exit(0);
+#endif
+#endif
+
+#if defined(_SEQUENT_)
+  printf("i386-sequent-ptx\n"); exit(0);
+#endif
+
+  exit (1);
+}
+EOF
+
+${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0
+rm -f dummy.c dummy
+
+echo '(Unable to guess system type)' 1>&2
+
+exit 1