From df8b030b15fcec7baf38ec7944f309f9ca8cc9a7 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Thu, 7 Nov 2013 13:28:16 +1100
Subject:  - (djm) [configure.ac defines.h] Skip arc4random_stir() calls on
 platforms    that lack it but have arc4random_uniform()

---
 defines.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'defines.h')

diff --git a/defines.h b/defines.h
index f4b262c82..b014f349b 100644
--- a/defines.h
+++ b/defines.h
@@ -25,7 +25,7 @@
 #ifndef _DEFINES_H
 #define _DEFINES_H
 
-/* $Id: defines.h,v 1.173 2013/11/03 07:43:55 dtucker Exp $ */
+/* $Id: defines.h,v 1.174 2013/11/07 02:28:16 djm Exp $ */
 
 
 /* Constants */
@@ -810,4 +810,13 @@ struct winsize {
 # endif
 #endif
 
+/*
+ * Platforms that have arc4random_uniform() and not arc4random_stir()
+ * shouldn't need the latter.
+ */
+#if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \
+    !defined(HAVE_ARC4RANDOM_STIR)
+# define arc4random_stir()
+#endif
+
 #endif /* _DEFINES_H */
-- 
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