;;; @ Emacs 20.3 emulation
;;;
+(defmacro-maybe string-as-unibyte (string)
+ "Return a unibyte string with the same individual bytes as STRING.
+If STRING is unibyte, the result is STRING itself.
+\[Emacs 20.3 emulating macro]"
+ string)
+
(defmacro-maybe string-as-multibyte (string)
"Return a multibyte string with the same individual bytes as STRING.
If STRING is multibyte, the result is STRING itself.