cat >&2 <<EOF
$cmd is $1. version $required is required to build Lustre.
+CFS provides RPMs which can be installed alongside your existing autoconf/make
+RPMs, if you are nervous about upgrading. See
+
+ftp://ftp.lustre.org/pub/other/autolustre/README.autolustre
+
You may be able to download a new version from:
http://ftp.gnu.org/gnu/$cmd/$cmd-$required.tar.gz
EOF