As of (From the CLISP src/Changelog): 2006-10-05 Sam Steingold <sds@podval.org> merged LOOKUP-FOREIGN-FUNCTION & FOREIGN-LIBRARY-FUNCTION into FIND-FOREIGN-FUNCTION; LOOKUP-FOREIGN-VARIABLE & FOREIGN-LIBRARY-VARIABLE into FIND-FOREIGN-VARIABLE ... This includes CVS releases starting with clisp-2.41. FFI::FOREIGN-LIBRARY-FUNCTION and FFI::FOREIGN-LIBRARY-VARIABLE have effectively been made legasy. In the current CVS head (but not the last clisp-2.44.1 release) these functions have quietly disappeared. This causes problems with the CLISP CVS head in cffi-clisp.lisp. I'm not sure what version of CLISP need to be supported. Should the new FFI::FIND-FOREIGN-FUNCTION and FFI::FIND-FOREIGN-VARIABLE interface now be used. -- Barry Fishman