--- a/dstep/foundation/NSURLError.d	Mon Aug 03 15:31:48 2009 +0200
+++ b/dstep/foundation/NSURLError.d	Sun Jan 03 22:06:11 2010 +0100
@@ -6,15 +6,32 @@
  */
 module dstep.foundation.NSURLError;
 
-import dstep.AvailabilityMacros;
 import dstep.foundation.NSString;
 import dstep.objc.bridge.Bridge;
-import dstep.objc.objc : id;
-
+import dstep.objc.objc;
 import bindings = dstep.foundation.NSURLError_bindings;
 
-const NSString NSURLErrorDomain;
-const NSString NSErrorFailingURLStringKey;
+private
+{
+	NSString NSURLErrorDomain_;
+	NSString NSErrorFailingURLStringKey_;
+}
+
+NSString NSURLErrorDomain ()
+{
+	if (NSURLErrorDomain_)
+		return NSURLErrorDomain_;
+		
+	return NSURLErrorDomain_ = new NSString(bindings.NSURLErrorDomain);
+}
+
+NSString NSErrorFailingURLStringKey ()
+{
+	if (NSErrorFailingURLStringKey_)
+		return NSErrorFailingURLStringKey_;
+		
+	return NSErrorFailingURLStringKey_ = new NSString(bindings.NSErrorFailingURLStringKey);
+}
 
 enum
 {
@@ -57,11 +74,4 @@
 	NSURLErrorCannotMoveFile = -3005,
 	NSURLErrorDownloadDecodingFailedMidStream = -3006,
 	NSURLErrorDownloadDecodingFailedToComplete = -3007
-}
-
-static this ()
-{
-	NSURLErrorDomain = new NSString(bindings.NSURLErrorDomain);
-	NSErrorFailingURLStringKey = new NSString(bindings.NSErrorFailingURLStringKey);
-}
-
+}
\ No newline at end of file