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From d1343f28dcbe25b100b082b34775bd92ead4602c Mon Sep 17 00:00:00 2001
From: jzmaddock <john@johnmaddock.co.uk>
Date: Tue, 25 Jan 2022 09:27:40 +0000
Subject: [PATCH] Update gcc Intel intrinsic usage config. Fixes
 https://github.com/boostorg/multiprecision/issues/419.

---
 include/boost/multiprecision/cpp_int/intel_intrinsics.hpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/boost/multiprecision/cpp_int/intel_intrinsics.hpp b/include/boost/multiprecision/cpp_int/intel_intrinsics.hpp
index eb4624bb4..37717cd51 100644
--- a/include/boost/multiprecision/cpp_int/intel_intrinsics.hpp
+++ b/include/boost/multiprecision/cpp_int/intel_intrinsics.hpp
@@ -19,7 +19,11 @@
 // If this is GCC/clang, then check that the actual intrinsic exists:
 //
 #if defined(__has_builtin) && defined(__GNUC__)
-#if !__has_builtin(__builtin_ia32_addcarryx_u64) && defined(BOOST_MP_HAS_IMMINTRIN_H) && !(defined(BOOST_GCC) && (__GNUC__ >= 9))
+#if !__has_builtin(__builtin_ia32_addcarryx_u64) && defined(BOOST_MP_HAS_IMMINTRIN_H) \
+   && !(defined(BOOST_GCC) && (__GNUC__ >= 9) \
+      && (defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64)\
+          || defined(i386) || defined(__i386) || defined(__i386__) || defined(_M_AMD64) \
+          || defined(_M_X64) || defined(__amd64__) || defined(_M_X64)))
 #undef BOOST_MP_HAS_IMMINTRIN_H
 #endif
 #elif defined(BOOST_MP_HAS_IMMINTRIN_H) && defined(__GNUC__) && !(defined(BOOST_GCC) && (__GNUC__ >= 9))