--- autosetup/autosetup-config.guess.orig	2021-02-19 04:07:35.000000000 +1000
+++ autosetup/autosetup-config.guess	2021-11-30 16:03:01.928847000 +1000
@@ -163,6 +163,16 @@
 # Note: order is significant - the case branches are not exclusive.
 
 case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
+    *:BSDSUniX:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case "$UNAME_PROCESSOR" in
+	    amd64)
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
+	esac
+	echo "$UNAME_PROCESSOR"-unknown-bsdsunix"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
     *:NetBSD:*:*)
 	# NetBSD (nbsd) targets should (where applicable) match one or
 	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,