I am trying mcclim and cffi from Debian unstable in SBCL. I cannot load gtkairo

CL-USER(1): (require :mcclim)

; loading system definition from /usr/share/common-lisp/systems/flexichain.asd ; into #<PACKAGE "ASDF0"> ; registering #<SYSTEM :FLEXICHAIN {1004742611}> as FLEXICHAIN ; loading system definition from ; /usr/share/common-lisp/systems/spatial-trees.asd into #<PACKAGE "ASDF0"> ; registering #<SYSTEM :SPATIAL-TREES {1004A49081}> as SPATIAL-TREES ; loading system definition from /usr/share/common-lisp/systems/clx.asd into ; #<PACKAGE "ASDF0"> ; registering #<SYSTEM CLX {1004BCF731}> as CLX NIL CL-USER(2): (require :clim-gtkairo)

; compiling file "/usr/share/common-lisp/source/mcclim/Backends/gtkairo/gtk- ffi.lisp" (written 03 MAR 2007 07:09:51 AM): ; compiling (IN-PACKAGE :CLIM-GTKAIRO) ; compiling (CFFI:DEFCTYPE UTF8-STRING ...) debugger invoked on a SIMPLE-ERROR in thread #<THREAD "initial thread" {1004273D61}>: Unknown CFFI type: (:STRING :ENCODING :UTF-8).

Type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name): 0: [RETRY ] Retry performing #<ASDF:COMPILE-OP NIL {1005A90811}> on #<ASDF:CL-SOURCE-FILE "gtk-ffi" {10086C5801}>. 1: [ACCEPT] Continue, treating #<ASDF:COMPILE-OP NIL {1005A90811}> on #<ASDF:CL-SOURCE-FILE "gtk-ffi" {10086C5801}> as having been successful. 2: [ABORT ] Exit debugger, returning to top level.

(CFFI::PARSE-TYPE (:STRING :ENCODING :UTF-8)) 0]

ii cl-cffi 20061013-1 The Common Foreign Function Interface for Common Lisp ii cl-mcclim 0.9.5.dfsg.1-1 Common Lisp graphic user interface toolkit

Is the CFFI too old here?

Liam