Ruby Shim is a set of modules that provide the libraries and the
additional features that will appear in the next version of Ruby.

Shim between 1.6 and 1.8 includes:

	features/ruby18	Hooks to support ruby 1.8 extensions
	dl		Interface to dynamic linker
	racc-runtime	Racc runtime module
	stringio	IO interface for String
	strscan		Fast string scanner
	benchmark	Benchmark module
	fileutils	File & directory manipulation
	optparse	Advanced command line option parser
	pp		Pretty printer (prettier version of `p')
	tsort		Topological sorter