+case $host in
+ alpha*-*-osf1* | \
+ alpha*-*-osf2* | \
+ hppa*-*-hiux* | \
+ i[34567]86-ncr-* | \
+ i[34567]86-*-dgux* | \
+ i[34567]86-*-lynxos* | \
+ i[34567]86-*-sco3.2v5* | \
+ i[34567]86-*-sco3.2v4* | \
+ i[34567]86-*-sco* | \
+ i[34567]86-*-sysv4.2* | \
+ i[34567]86-*-sysv4* | \
+ i[34567]86-*-sysv5* | \
+ i[34567]86-*-unixware2* | \
+ i[34567]86-*-unixware* | \
+ i[34567]86-*-sysv* | \
+ i[34567]86-*-isc* | \
+ rs6000-*-lynxos* | \
+ null)
+ echo "*** Configuration $host is obsolete." >&2
+ echo "*** Support has been REMOVED." >&2
+ exit 1
+ ;;
+esac
+