Package and examples available from this URL.
http://hct.ece.ubc.ca/research/tkogl/tkogl/index.html
PWQ 20 Aug 05, Version 3.2 would not compile under linux due to incorrect header and library specification as well as incorect settings for libtool. Does not appear to be in active development.
I have been using tclogl which is put together much better.