From: espen <espen>
Date: Sun, 19 Feb 2006 19:20:20 +0000 (+0000)
Subject: Added code to detect if SBCL is missing or has duplicate C callback support
X-Git-Tag: clg-0-92~39
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/commitdiff_plain/ee878ebf7cecd247aa045a27f42b3336dc1c612b

Added code to detect if SBCL is missing or has duplicate C callback support
---

diff --git a/glib/glib.asd b/glib/glib.asd
index 668c59b..5c18f0b 100644
--- a/glib/glib.asd
+++ b/glib/glib.asd
@@ -30,6 +30,17 @@
 (when (string>= (lisp-implementation-version) "0.9.8")
   (push :sbcl>=0.9.8 *features*))
 
+#+(and sbcl (not alien-callbacks))
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (unless (find-symbol "DEFINE-ALIEN-FUNCTION" "SB-ALIEN")
+    (error "You need to upgrade SBCL to a version with native C callback support or see the README file about how to add third party callbacks to your current SBCL version.")))
+
+#+(and sbcl alien-callbacks)
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (when (find-symbol "DEFINE-ALIEN-FUNCTION" "SB-ALIEN")
+    (error "Third party C callback code detected in a SBCL image with native callback support. As clg now uses native callbacks when available, you need to use a \"clean\" core file.")))
+
+
 (defsystem glib
     :depends-on (clg-tools)
     :components ((:file "defpackage")