The locale library for at least utf-8 must be compiled before we attempt to install HTML::Encoding.

On Gentoo, we run "locale-gen" to compile the locales, after we have setup the locale options follow the notes at the bottom of Installing the Gentoo Base System.

On Red Hat/CentOS, we run "localedef" to compile definition files. For instance, you can do "localedef -c -f UTF-8 -i en_US en_US.utf8" to compile utf-8 of en_US.

perl-HTML-Encoding can be found in CentOS Extra repos and thus we don't have to cpan install it.