--- lib/config.guess
+++ lib/config.guess
@@ -139,6 +139,16 @@
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
+case "${UNAME_MACHINE}" in
+    i?86)
+	test -z "$VENDOR" && VENDOR=pc
+	;;
+    *)
+	test -z "$VENDOR" && VENDOR=unknown
+	;;
+esac
+test -f /etc/SuSE-release -o -f /.buildenv && VENDOR=suse
+
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
@@ -829,7 +839,7 @@
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
     arm*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     cris:Linux:*:*)
 	echo cris-axis-linux-gnu
@@ -838,16 +848,16 @@
 	echo crisv32-axis-linux-gnu
 	exit ;;
     frv:Linux:*:*)
-    	echo frv-unknown-linux-gnu
+    	echo frv-${VENDOR}-linux-gnu
 	exit ;;
     ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     mips:Linux:*:*)
 	eval $set_cc_for_build
@@ -870,7 +880,7 @@
 		s: ::g
 		p
 	    }'`"
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	test x"${CPU}" != x && { echo "${CPU}-${VENDOR}-linux-gnu"; exit; }
 	;;
     mips64:Linux:*:*)
 	eval $set_cc_for_build
@@ -893,16 +903,16 @@
 		s: ::g
 		p
 	    }'`"
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	test x"${CPU}" != x && { echo "${CPU}-${VENDOR}-linux-gnu"; exit; }
 	;;
     or32:Linux:*:*)
-	echo or32-unknown-linux-gnu
+	echo or32-${VENDOR}-linux-gnu
 	exit ;;
     ppc:Linux:*:*)
-	echo powerpc-unknown-linux-gnu
+	echo powerpc-${VENDOR}-linux-gnu
 	exit ;;
     ppc64:Linux:*:*)
-	echo powerpc64-unknown-linux-gnu
+	echo powerpc64-${VENDOR}-linux-gnu
 	exit ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
@@ -916,36 +926,36 @@
         esac
 	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
 	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu${LIBC}
 	exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
-	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
-	  *)    echo hppa-unknown-linux-gnu ;;
+	  PA7*) echo hppa1.1-${VENDOR}-linux-gnu ;;
+	  PA8*) echo hppa2.0-${VENDOR}-linux-gnu ;;
+	  *)    echo hppa-${VENDOR}-linux-gnu ;;
 	esac
 	exit ;;
     parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo hppa64-unknown-linux-gnu
+	echo hppa64-${VENDOR}-linux-gnu
 	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
 	echo ${UNAME_MACHINE}-ibm-linux
 	exit ;;
     sh64*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
+    	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-${VENDOR}-linux-gnu
 	exit ;;
     vax:Linux:*:*)
 	echo ${UNAME_MACHINE}-dec-linux-gnu
 	exit ;;
     x86_64:Linux:*:*)
-	echo x86_64-unknown-linux-gnu
+	echo x86_64-${VENDOR}-linux-gnu
 	exit ;;
     i*86:Linux:*:*)
 	# The BFD linker knows what the default object file format is, so
@@ -960,18 +970,18 @@
 				    p'`
         case "$ld_supported_targets" in
 	  elf32-i386)
-		TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
+		TENTATIVE="${UNAME_MACHINE}-${VENDOR}-linux-gnu"
 		;;
 	  a.out-i386-linux)
-		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
+		echo "${UNAME_MACHINE}-${VENDOR}-linux-gnuaout"
 		exit ;;
 	  coff-i386)
-		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
+		echo "${UNAME_MACHINE}-${VENDOR}-linux-gnucoff"
 		exit ;;
 	  "")
 		# Either a pre-BFD a.out linker (linux-gnuoldld) or
 		# one that does not give us useful --help.
-		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
+		echo "${UNAME_MACHINE}-${VENDOR}-linux-gnuoldld"
 		exit ;;
 	esac
 	# Determine whether the default compiler is a.out or elf
@@ -1005,7 +1015,7 @@
 		p
 	    }'`"
 	test x"${LIBC}" != x && {
-		echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+		echo "${UNAME_MACHINE}-${VENDOR}-linux-${LIBC}"
 		exit
 	}
 	test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }