From 69d5f4ab53577fb4fb1a866ba74e5dbfe909e48d Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 21 Mar 2013 04:50:52 +0000
Subject: [PATCH] vm_core.h: suppress warnings

* vm_core.h (UNINITIALIZED_VAR): suppress warnings by clang 4.2.
  [ruby-core:51742] [Bug #7756]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39855 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 5 +++++
 vm_core.h | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 2fc06487c3..2858fca612 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Mar 21 13:50:46 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (UNINITIALIZED_VAR): suppress warnings by clang 4.2.
+	  [ruby-core:51742] [Bug #7756]
+
 Thu Mar 21 07:34:00 2013  Zachary Scott  <zachary@zacharyscott.net>
 
 	* ext/date/date_core.c: Typo in Date::MONTHNAMES by Matt Gauger
diff --git a/vm_core.h b/vm_core.h
index 5cce489e21..576ba8e0d9 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -115,7 +115,9 @@
 #define UNLIKELY(x) (x)
 #endif /* __GNUC__ >= 3 */
 
-#if __GNUC__ >= 3
+#if (defined(__clang__) && (__clang_major__ == 4 && __clang_minor__ == 2))
+#define UNINITIALIZED_VAR(x) x __attribute__((unused))
+#elif defined(__GNUC__) && __GNUC__ >= 3
 #define UNINITIALIZED_VAR(x) x = x
 #else
 #define UNINITIALIZED_VAR(x) x