From 84d83482c8ba1b8e7002ed8ff4c6a2c00fa4ce62 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 30 Jul 2017 14:59:40 +0000
Subject: [PATCH] UNALIGNED_MEMBER_ACCESS only for clang

* eval_intern.h (UNALIGNED_MEMBER_ACCESS): enable only on clang.
  gcc does not complain about pointers to member of unaligned
  struct.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59451 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 eval_intern.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/eval_intern.h b/eval_intern.h
index 610546153f..2209504aa7 100644
--- a/eval_intern.h
+++ b/eval_intern.h
@@ -157,7 +157,8 @@ LONG WINAPI rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *);
 # define VAR_NOCLOBBERED(var) var
 #endif
 
-#if defined(USE_UNALIGNED_MEMBER_ACCESS) && USE_UNALIGNED_MEMBER_ACCESS
+#if defined(USE_UNALIGNED_MEMBER_ACCESS) && USE_UNALIGNED_MEMBER_ACCESS && \
+    defined(__clang__)
 # define UNALIGNED_MEMBER_ACCESS(expr) __extension__({ \
     _Pragma("GCC diagnostic push"); \
     _Pragma("GCC diagnostic ignored \"-Waddress-of-packed-member\""); \