access to Berkeley DB
+=item Devel::Peek
+
+data debugging tool for the XS programmer
+
=item Devel::SelfStubber
generate stubs for a SelfLoading module
create or remove a series of directories
+=item File::Spec
+
+portably perform operations on file names
+
+=item File::Spec::Functions
+
+function call interface to File::Spec module
+
=item File::stat
by-name interface to Perl's builtin stat() functions