Verrazano
Verrazano is no longer actively developed; see c2ffi or SWIG.

Verrazano is a FFI bindings generator targetting CFFI and UFFI. It is designed to have robust support for C and C++ header files, by using GCC-XML as its parser, and to be easily retargettable to a number of different foreign function interfaces.

Homepage: http://common-lisp.net/project/fetter/