X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fmacros.lisp;h=1efe6b2aea679a7c705df4c8d199002719168ef1;hb=0b5610d8a220a4b20cbeac958953ca4d67c00038;hp=713f224d38f259884bf8c350e9fdc4b26f02d0ae;hpb=8624c52d7620e8a4d3de23c363e843a10815f4f4;p=sbcl.git

diff --git a/src/compiler/macros.lisp b/src/compiler/macros.lisp
index 713f224..1efe6b2 100644
--- a/src/compiler/macros.lisp
+++ b/src/compiler/macros.lisp
@@ -745,7 +745,7 @@
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
 
-(defstruct event-info
+(defstruct (event-info (:copier nil))
   ;; The name of this event.
   (name (required-argument) :type symbol)
   ;; The string rescribing this event.