From ddb8f36e8894a3bce7daeca0815fb0137de73388 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Sat, 15 Apr 2023 18:21:03 -0400
Subject: Fix use of <x86intrin.h> for MSVC (GH #1198) It seems Microsoft now
 defines GCC defines, like __BMI__

---
 config_ver.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'config_ver.h')

diff --git a/config_ver.h b/config_ver.h
index c28abb86..a771de44 100644
--- a/config_ver.h
+++ b/config_ver.h
@@ -87,4 +87,10 @@
 # define CRYPTOPP_MSC_VERSION (_MSC_VER)
 #endif
 
+// To control <x86intrin.h> include. May need a guard, like GCC 4.5 and above
+// Also see https://stackoverflow.com/a/42493893 and https://github.com/weidai11/cryptopp/issues/1198
+#if defined(CRYPTOPP_GCC_VERSION) || defined(CRYPTOPP_APPLE_CLANG_VERSION) || defined(CRYPTOPP_LLVM_CLANG_VERSION)
+# define CRYPTOPP_GCC_COMPATIBLE 1
+#endif
+
 #endif  // CRYPTOPP_CONFIG_VERSION_H
-- 
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