[cffi-devel] cffi-libffi funcall path and :string

For functions using the libffi foreign-funcall path, functions defined with :string parameters still fail because TRANSLATE-INTO-FOREIGN-MEMORY is not defined on FOREIGN-STRING-TYPE. E.g.,

(defcfun ("xcb_intern_atom" xcb-intern-atom) (:struct xcb-intern-atom-cookie-t) (c :pointer) (only_if_exists :unsigned-char) (name_len :unsigned-short) (name :string))

Calling this fails:

There is no applicable method for the generic function #<STANDARD-GENERIC-FUNCTION TRANSLATE-INTO-FOREIGN-MEMORY (5)> when called with arguments (#.(SB-SYS:INT-SAP #X7FFFD8000DC0) #<CFFI::FOREIGN-STRING-TYPE :UTF-8> #.(SB-SYS:INT-SAP #X7FFFECDB7FD8)). [Condition of type SIMPLE-ERROR]

This is using unmodified master.