From 9937f4e8ba2260ef2e0eda0883467d1e67d9b011 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Sun, 12 Jun 2016 08:59:15 -0400
Subject: Fix compiler include detection under LLVM and Apple Clang (Issue 183)

---
 rdrand.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'rdrand.cpp')

diff --git a/rdrand.cpp b/rdrand.cpp
index 55fde3ab..3a988b4c 100644
--- a/rdrand.cpp
+++ b/rdrand.cpp
@@ -135,6 +135,11 @@
 # if defined(__GNUC__) && (CRYPTOPP_GCC_VERSION >= 40600)
 #  include <x86intrin.h> // rdseed for some compilers, like GCC
 # endif
+# if defined(__has_include)
+#  if __has_include(<x86intrin.h>)
+#   include <x86intrin.h> // rdseed for Clang (immintrin.h); rdseed for Clang (rdseedintrin.h)
+#  endif
+# endif
 #endif
 
 #if MASM_RDRAND_ASM_AVAILABLE
-- 
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