X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Finfo-functions.lisp;h=5188227ce8c2421834ccc5f37db2da0752740def;hb=095564c28a259002c7e34fd1d861f5bbd0a959b6;hp=a2dccfd3de793e69dd4752c329bbc636298dd932;hpb=68612b8227bdd1a9e70962201f54231c82affa17;p=sbcl.git

diff --git a/src/compiler/info-functions.lisp b/src/compiler/info-functions.lisp
index a2dccfd..5188227 100644
--- a/src/compiler/info-functions.lisp
+++ b/src/compiler/info-functions.lisp
@@ -209,8 +209,10 @@
     (error "can't SETF COMPILER-MACRO-FUNCTION when ENV is non-NIL"))
   (when (eq (info :function :kind name) :special-form)
     (error "~S names a special form." name))
-  (setf (info :function :compiler-macro-function name) function)
-  function)
+  (with-single-package-locked-error 
+      (:symbol name "setting the compiler-macro-function of ~A")
+    (setf (info :function :compiler-macro-function name) function)
+    function))
 
 ;;;; a subset of DOCUMENTATION functionality for bootstrapping