From c77f736bc1e6b73d62e9ba3dcf3dcbeff0657b38 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sun, 11 Feb 2024 19:43:06 +0900
Subject: Win32: Fix pre-defined macros for platforms

Use `_WIN64` for word-size, `_M_AMD64` for CPU-specific feature.
---
 include/ruby/internal/memory.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include/ruby/internal')

diff --git a/include/ruby/internal/memory.h b/include/ruby/internal/memory.h
index 8f00787512..3bd54cd6c7 100644
--- a/include/ruby/internal/memory.h
+++ b/include/ruby/internal/memory.h
@@ -38,7 +38,7 @@
 # include <alloca.h>
 #endif
 
-#if defined(_MSC_VER) && defined(_WIN64)
+#if defined(_MSC_VER) && defined(_M_AMD64)
 # include <intrin.h>
 # pragma intrinsic(_umul128)
 #endif
-- 
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