+// #if __IPHONE_OS_VERSION_MIN_REQUIRED < 30000 {{{
+#if __IPHONE_OS_VERSION_MIN_REQUIRED < 30000
+
+#define kSCNetworkReachabilityFlagsConnectionOnDemand (1 << 5)
+#define kCFCoreFoundationVersionNumber_iPhoneOS_3_0 478.47
+
+#endif
+// }}}
+
+#ifndef kCFCoreFoundationVersionNumber_iPhoneOS_4_0
+#define kCFCoreFoundationVersionNumber_iPhoneOS_4_0 550.32
+#endif
+
+@interface UITabBarItem (iOS_7_0)
+- (id) initWithTitle:(NSString *)title image:(UIImage *)image selectedImage:(UIImage *)selectedImage;
+@end
+
+@interface UIScreen (iOS_4_0)
+@property(nonatomic,readonly) CGFloat scale;
+@end
+
+@interface DOMHTMLIFrameElement (IDL)
+- (WebFrame *) contentFrame;
+@end
+
+typedef enum {
+ UIInterfaceOrientationMaskPortrait = (1 << UIInterfaceOrientationPortrait),
+ UIInterfaceOrientationMaskLandscapeLeft = (1 << UIInterfaceOrientationLandscapeLeft),
+ UIInterfaceOrientationMaskLandscapeRight = (1 << UIInterfaceOrientationLandscapeRight),
+ UIInterfaceOrientationMaskPortraitUpsideDown = (1 << UIInterfaceOrientationPortraitUpsideDown),
+ UIInterfaceOrientationMaskLandscape = (UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight),
+ UIInterfaceOrientationMaskAll = (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft |
+ UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskPortraitUpsideDown),
+ UIInterfaceOrientationMaskAllButUpsideDown = (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight),
+} UIInterfaceOrientationMask;