From: Rupert Swarbrick <rswarbrick@gmail.com>
Date: Wed, 29 Feb 2012 17:40:24 +0000 (+0000)
Subject: Make type-expand-based code work on SBCL again.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/commitdiff_plain/f28952dfbbc69735b835a429131f2384eee7e9d0

Make type-expand-based code work on SBCL again.

See the (ancient) post at
http://permalink.gmane.org/gmane.lisp.clg.devel/427 for an
explanation.
---

diff --git a/gffi/interface.lisp b/gffi/interface.lisp
index d89e9a7..72e3c13 100644
--- a/gffi/interface.lisp
+++ b/gffi/interface.lisp
@@ -424,6 +424,12 @@   (deftype callback () 'symbol))
 
 ;;;; Type expansion
 
+;; A hack to make the TYPE-EXPAND code for SBCL work.
+#?+(pkg-config:sbcl>= 1 0 35 15)
+(sb-ext:without-package-locks
+  (setf (symbol-function 'sb-kernel::type-expand)
+        (lambda (form) (typexpand form))))
+
 (defun type-expand-1 (form)
   #+(or cmu sbcl)
   (let ((def (cond ((symbolp form)