$ perl -e'use 5.10;'
Perl v5.100.0 required (did you mean v5.10.0?)--this is only v5.12.2, stopped at -e line 1.
BEGIN failed--compilation aborted at -e line 1.

##</code><code>##

$ perl -M5.014 -e1
Perl v5.14.0 required--this is only v5.12.2, stopped.
BEGIN failed--compilation aborted.