X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcompiler%2Finfo-functions.lisp;h=7568f1274813a8d1da576783f2165d0e7429f47c;hb=b63c4fb9b98fa8188e17ba926e150ba417a74635;hp=5188227ce8c2421834ccc5f37db2da0752740def;hpb=ff92598854bf7cae8d57fe49cef4d9a98e1ab345;p=sbcl.git

diff --git a/src/compiler/info-functions.lisp b/src/compiler/info-functions.lisp
index 5188227..7568f12 100644
--- a/src/compiler/info-functions.lisp
+++ b/src/compiler/info-functions.lisp
@@ -162,14 +162,16 @@
 	  (t
 	   nil))))
 
-;;; Note: Technically there could be an ENV optional argument to SETF
-;;; MACRO-FUNCTION, but since ANSI says that the consequences of
-;;; supplying that optional argument are undefined, we don't allow it.
-;;; (Thus our implementation of this unspecified behavior is to
-;;; complain that the wrong number of arguments was supplied. Since
-;;; the behavior is unspecified, this is conforming.:-)
-(defun (setf sb!xc:macro-function) (function symbol)
+(defun (setf sb!xc:macro-function) (function symbol &optional environment)
   (declare (symbol symbol) (type function function))
+  (when environment
+    ;; Note: Technically there could be an ENV optional argument to SETF
+    ;; MACRO-FUNCTION, but since ANSI says that the consequences of
+    ;; supplying a non-nil one are undefined, we don't allow it.
+    ;; (Thus our implementation of this unspecified behavior is to
+    ;; complain. SInce the behavior is unspecified, this is conforming.:-)
+    (error "Non-NIL environment argument in SETF of MACRO-FUNCTION ~S: ~S" 
+           symbol environment))
   (when (eq (info :function :kind symbol) :special-form)
     (error "~S names a special form." symbol))
   (setf (info :function :kind symbol) :macro)