-;;; not documented in CMU CL:-(
-;;;
-;;; reverse engineering observations:
-;;; * seems to be set when translating return values
-;;; * seems to enable the translation of (VALUES), which is the
-;;; Lisp idiom for C's return type "void" (which is likely
-;;; why it's set when when translating return values)
-(defvar *values-type-okay* nil)
-