Script to create Slackware packages from rubygems.

see ./gem2tgz --help for more details and the full list of options.

Examples:
- Create packages for rails and all its dependencies:
  gem2tgz --gem rails

- Create packages for rails, version 3.0.4 and all its dependencies:
  gem2tgz --gem rails --version 3.0.4

- Create and install packages for rails, version 3.0.4 and all its
  dependencies:
  gem2tgz --gem rails --version 3.0.4 --install

- Create packages for rails only (no dependencies):
  gem2tgz --gem rails --version 3.0.4 --no-deps

- Generate packages for ALL gems installed locally
  gem2tgz --backup

- Display a list of gems installed in more than one version (can be used
  in /etc/slackpkg/blacklist):
  gem2tgz --duplicates