From 63fbfa1580411f8fc66d1bd6b634b2ae629c9ea8 Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <matthias@benkard.de>
Date: Sun, 27 Jul 2008 09:57:56 +0200
Subject: MLKCons: Implement -copyWithZone:.

This makes the D-B macro work again, though the cause of the failure is still unknown.
---
 MLKCons.h | 2 ++
 MLKCons.m | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/MLKCons.h b/MLKCons.h
index 739fb40..55f47c1 100644
--- a/MLKCons.h
+++ b/MLKCons.h
@@ -44,5 +44,7 @@
                                       // only
 -(NSString *)descriptionForLisp;
 
+-(id) copyWithZone:(NSZone *)zone;
+  
 -(void) dealloc;
 @end
diff --git a/MLKCons.m b/MLKCons.m
index 8b3084b..c557dc2 100644
--- a/MLKCons.m
+++ b/MLKCons.m
@@ -128,6 +128,14 @@
     return [NSString stringWithFormat:@"(%@)", [self bareDescriptionForLisp]];
 }
 
+-(id) copyWithZone:(NSZone *)zone
+{
+  MLKCons *copy = [MLKCons allocWithZone:zone];
+  ASSIGN (copy->_car, _car);
+  ASSIGN (copy->_cdr, _cdr);
+  return copy;
+}
+
 -(void) dealloc
 {
   RELEASE (_car);
-- 
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