broken on Mac OS X 10.6

[jlw]

After finally upgrading from OS X 10.5 to 10.6, scrapi is no longer working. It bails out with:
Scraper::Reader::HTMLParseError: Unable to load /Library/Ruby/Gems/1.8/gems/scrapi-1.2.0/lib/scraper/../tidy/libtidy.dylib

I found this blog post with a solution:
http://exceptionz.wordpress.com/2009/11/03/scrapi-on-snow-leopard/