Just released rubylibcrack as a gem (0.1.1). I developed this teeny-weeny binding to the *nix password strength checking library cracklib at my work. Big props to my work, they totally get open source and the way things should be done.
The gem has only been tested on Redhat, Fedora, Gentoo and Ubuntu (all 64bit, I think), but I’d love to hear how it fares on other platforms. Here’s a Gentoo ebuild for the package.
as i already posted in the bug tracker of rubyforge, this seems to really just work on 64bit machines. i tried it on osx with no luck. :(