MacGUI: Fix build on 10.6sdk.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5228 b64f7644-9d1e-0410-96f1-a4d463321fa5

diff --git a/macosx/HBPreviewController.m b/macosx/HBPreviewController.m
index 664397469980694f856e384e9613dea818e925a8..a6b386bd86c06738039f37e99d6c6c127ba3049a 100644 (file)
--- a/macosx/HBPreviewController.m
+++ b/macosx/HBPreviewController.m
@@ -14,7 +14,13 @@
 }
 @end
 
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
+@interface NSWindow(HBExtensions)
 
+@property (readonly) CGFloat backingScaleFactor;
+
+@end
+#endif
 
 @interface PreviewController (Private)