diff --git a/clang/lib/Headers/float.h b/clang/lib/Headers/float.h
index c6a6cc08462d..d02531c466f4 100644
--- a/clang/lib/Headers/float.h
+++ b/clang/lib/Headers/float.h
@@ -17,9 +17,13 @@
  * Also fall back on Darwin and AIX to allow additional definitions and
  * implementation-defined values.
  */
-#if (defined(__APPLE__) || defined(__MINGW32__) || defined(_MSC_VER) ||        \
-     defined(_AIX)) &&                                                         \
-    __STDC_HOSTED__ && __has_include_next(<float.h>)
+#if defined(__APPLE__) && __has_include(<Availability.h>)
+#include <Availability.h>
+#endif
+#if ((defined(__APPLE__) && __has_include(<Availability.h>) && (!defined(__MAC_OS_X_VERSION_MAX_ALLOWED) || __MAC_OS_X_VERSION_MAX_ALLOWED >= 101300)) || \
+     defined(__MINGW32__) || defined(_MSC_VER) ||                       \
+     defined(_AIX)) &&                                                   \
+  __STDC_HOSTED__ && __has_include_next(<float.h>)
 
 /* Prior to Apple's 10.7 SDK, float.h SDK header used to apply an extra level
  * of #include_next<float.h> to keep Metrowerks compilers happy. Avoid this