I downloaded the 0.8 stable version of Thrift and began by performing the configure, make tasks. It appears that this version of Thrift is not compatible with Ruby 1.9.
The problem encountered is that Ruby library inside Thrift includes the Mongrel web server. Mongrel does not work with Ruby 1.9. A drop in replacement for Mongrel is the Thin web server, and there are also several other choices.
I have submitted a pull request via Github to resolve this matter.