Merge pull request #28 from Snupps/master

Conditional compiling of iOS 7 only features by Andrea Bizzotto

Author: nicolaschengdev

WYPopoverController/WYPopoverController.h

@@ -46,7 +46,7 @@ typedef NS_OPTIONS(NSUInteger, WYPopoverArrowDirection) {
 
 @interface WYPopoverBackgroundView : UIView
 
-@property (nonatomic, strong) UIColor *strokeColor              UI_APPEARANCE_SELECTOR DEPRECATED_MSG_ATTRIBUTE("WYPopoverController [0.1.3] : Use 'outerStrokeColor' instead.");
+@property (nonatomic, strong) UIColor *strokeColor              UI_APPEARANCE_SELECTOR __attribute((deprecated("WYPopoverController [0.1.3] : Use 'outerStrokeColor' instead.")));
 
 @property (nonatomic, strong) UIColor *tintColor                UI_APPEARANCE_SELECTOR;
 @property (nonatomic, strong) UIColor *fillTopColor             UI_APPEARANCE_SELECTOR;

WYPopoverController/WYPopoverController.m

@@ -25,6 +25,10 @@ of this software and associated documentation files (the "Software"), to deal
 
 #import "WYPopoverController.h"
 
+#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
+    #define WY_BASE_SDK_7_ENABLED
+#endif
+
 #ifdef DEBUG
     #define WY_LOG(fmt, ...)		NSLog((@"%s (%d) : " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__)
 #else
@@ -1316,11 +1320,13 @@ - (CGSize)popoverContentSize
 {
     CGSize result = CGSizeZero;
 
+#ifdef WY_BASE_SDK_7_ENABLED
     if ([viewController respondsToSelector:@selector(preferredContentSize)])
     {
         result = [viewController preferredContentSize];
     }
     else
+#endif
     {
 #pragma clang diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated"
@@ -1333,11 +1339,13 @@ - (CGSize)popoverContentSize
 
 - (void)setPopoverContentSize:(CGSize)size
 {
+#ifdef WY_BASE_SDK_7_ENABLED
     if ([viewController respondsToSelector:@selector(setPreferredContentSize:)])
     {
         [viewController setPreferredContentSize:size];
     }
     else
+#endif
     {
 #pragma clang diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated"
@@ -1352,11 +1360,12 @@ - (CGSize)contentSizeForViewInPopover
 {
     CGSize result = CGSizeZero;
 
+#ifdef WY_BASE_SDK_7_ENABLED
     if ([viewController respondsToSelector:@selector(preferredContentSize)])
     {
         result = viewController.preferredContentSize;
     }
-    
+#endif
     if (CGSizeEqualToSize(result, CGSizeZero))
     {
 #pragma clang diagnostic push