is nothing odd with your program. You will also see @code{:CLEANUP}
frames during the execution of @code{unwind-protect} cleanup code.
The @code{:EXTERNAL} and @code{:CLEANUP} above are entry-point types,
-visible only if @code{sb-debug:*show-entry-point-details*} os true.
+visible only if @code{sb-debug:*show-entry-point-details*} is true.
@node Debug Tail Recursion
@comment node-name, next, previous, up