Follow up with Anu as to reason for:
  Locale.pm.newForLocaleIssue
  Alias.pm.forLocaleIssue

The Greenstone cpan Twig.pm is actually XML::Twig but seems to have
been installed in the wrong location

For Unicode-based Classifier sorted, we have a Greenstone customised version:
  Sort/ArbBiLexGS.pm


Failed to find: compile-dbd-mysql.sh
Failed to find: compile-zerossl.sh
Failed to find: Ogg/Vorbis/Header/PurePerl.pm

You only need the following if you are worrying about Perl before 5.8.8
  Bundle/LWP.pm

Concernig LWP::Protocol ...

  GHTTP.pm  -- Now deprecated on CPAN (used to work with Gnome based HTTP lib)
  http10.pm -- For working with HTTP 1.0 rather than 1.1

  https10.pm -- Secure version, needs libssl to work
  https.pm   -- Secure version, needs libssl to work

EOF