Predeclare sub names
+=item unicode::distinct
+
+Strictly distinguish UTF8 data and non-UTF data.
+
=item utf8
Enable/disable UTF-8 in source code
Perl compiler's optimized C translation backend
+=item B::Concise
+
+Walk Perl syntax tree, printing concise info about ops
+
=item B::Debug
Walk Perl syntax tree, printing debug info about ops
Warn of errors (from perspective of caller)
+=item Carp::Heavy
+
+No user serviceable parts inside
+
=item Class::Struct
Declare struct-like datatypes as Perl classes
Locate directory of original perl script
+=item GDBM_File
+
+Perl5 access to the gdbm library.
+
=item Getopt::Long
Extended processing of command line options
Convert POD data to formatted color ASCII text
+=item Pod::Text::Overstrike
+
+Convert POD data to formatted overstrike text
+
=item Pod::Text::Termcap
Convert POD data to ASCII text with format escapes