merge revision(s) e033c9d7db02a4e8d2973364ecb47744b63aecd3: [Backport #17549]

	Include missing AvailabilityMacros.h

	---
	 random.c | 4 ++++
	 1 file changed, 4 insertions(+)

1 files changed, 4 insertions, 0 deletions

diff --git a/random.c b/random.c
index 68b47bcf1b..f2e57909a3 100644
--- a/random.c
+++ b/random.c
@@ -9,6 +9,10 @@
 
 **********************************************************************/
 
+#if defined __APPLE__
+# include <AvailabilityMacros.h>
+#endif
+
 #include "internal.h"
 
 #include <limits.h>