From 23849edeb449db61ac1a2799c2394dddb586b288 Mon Sep 17 00:00:00 2001
From: yulingtianxia <yulingtianxia@gmail.com>
Date: Mon, 13 Nov 2017 20:09:23 +0800
Subject: [PATCH] use macro to check os version

---
 MessageThrottle/MessageThrottle.m | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/MessageThrottle/MessageThrottle.m b/MessageThrottle/MessageThrottle.m
index 1c08bcd..6418c7f 100644
--- a/MessageThrottle/MessageThrottle.m
+++ b/MessageThrottle/MessageThrottle.m
@@ -13,11 +13,12 @@
 
 static inline BOOL mt_object_isClass(id _Nullable obj)
 {
-    if (@available(iOS 8.0, macOS 10.10, tvOS 9.0, watchOS 2.0, *)) {
-        return object_isClass(obj);
-    }
+#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0 || __TV_OS_VERSION_MIN_REQUIRED >= __TVOS_9_0 || __WATCH_OS_VERSION_MIN_REQUIRED >= __WATCHOS_2_0 || __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_10
+    return object_isClass(obj);
+#else
     if (!obj) return NO;
     return obj == [obj class];
+#endif
 }
 
 Class mt_metaClass(Class cls)