Chicken Scheme 4.4.0 is available for download from here:
http://www.call-with-current-continuation.org/chicken-4.4.0.tar.gz
Chicken is a Scheme compiler that translates most of R5RS Scheme into
relatively portable and efficient C code. It supports fully general
tail-call recursion, first-class continuations, and has a very
flexible and efficient interface to C and C++. Chicken implements
several extensions to the Scheme language: lightweight threads,
pattern matching, dynamic loading of compiled code, and others. The
library system includes hundreds of convenient modules for practical
use.
Please let me know if you any questions or comments, or post to the
Chicken-Users mailing list:
http://lists.nongnu.org/mailman/listinfo/chicken-users
Thanks,
Ivan Raikov