From d5fc3fa4dbf2d6decb6c2582eed6fd2d8003c70c Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@ruby-lang.org>
Date: Wed, 29 Dec 2021 19:31:47 +0900
Subject: [PATCH] win32/win32.c Fix PROT_EXEC bit flag check for
 FlushInstrucitonCache()

---
 win32/win32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win32/win32.c b/win32/win32.c
index c9bd18c8cd..d9e719af00 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -8264,7 +8264,7 @@ rb_w32_mprotect(void *addr, size_t len, int prot)
         return -1;
     }
 */
-    if (prot | PROT_EXEC) {
+    if (prot & PROT_EXEC) {
         if (!FlushInstructionCache(GetCurrentProcess(), addr, len)) {
             errno = rb_w32_map_errno(GetLastError());
             return -1;