0.9.18.71: fix build on Darwin 7.9.0 (OS X 10.3)

[sbcl.git] / src / code / array.lisp

diff --git a/src/code/array.lisp b/src/code/array.lisp
index 308b762..6d6ae8c 100644 (file)
--- a/src/code/array.lisp
+++ b/src/code/array.lisp
@@ -149,6 +149,11 @@
     (declare (fixnum array-rank))
     (when (and displaced-index-offset (null displaced-to))
       (error "can't specify :DISPLACED-INDEX-OFFSET without :DISPLACED-TO"))
+    (when (and displaced-to
+               (arrayp displaced-to)
+               (not (equal (array-element-type displaced-to)
+                           (upgraded-array-element-type element-type))))
+      (error "Array element type of :DISPLACED-TO array does not match specified element type"))
     (if (and simple (= array-rank 1))
         ;; it's a (SIMPLE-ARRAY * (*))
         (multiple-value-bind (type n-bits)