0.6.11.10:

[sbcl.git] / src / pcl / cpl.lisp

diff --git a/src/pcl/cpl.lisp b/src/pcl/cpl.lisp
index 162ba55..8fdd038 100644 (file)
--- a/src/pcl/cpl.lisp
+++ b/src/pcl/cpl.lisp
@@ -78,11 +78,12 @@
   (compute-std-cpl root (class-direct-superclasses root)))
 
 (defstruct (class-precedence-description
-            (:conc-name nil)
-            (:print-object (lambda (obj str)
-                             (print-unreadable-object (obj str :type t)
-                               (format str "~D" (cpd-count obj)))))
-            (:constructor make-cpd ()))
+           (:conc-name nil)
+           (:print-object (lambda (obj str)
+                            (print-unreadable-object (obj str :type t)
+                              (format str "~D" (cpd-count obj)))))
+           (:constructor make-cpd ())
+           (:copier nil))
   (cpd-class  nil)
   (cpd-supers ())
   (cpd-after  ())