+(defvar mail-parse-mule-charset nil
+ "Default MULE charset used by low-level libraries.
+This variable should never be set.")
+
+(defvar mail-parse-ignored-charsets nil
+ "Ignored charsets used by low-level libraries.
+This variable should never be set. Instead, it should be bound by
+functions that wish to call mail-parse functions and let them know
+what the desired charsets is to be ignored.")
+