From 9d5a811ae187ac86bbe5e69c002f311501108920 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 5 Jun 2008 23:00:08 +0000
Subject: [PATCH] Warn of potential violations of strict aliasing rules.

llvm-svn: 52027
---
 Makefile.rules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.rules b/Makefile.rules
index 55d4d1b7038..74b5a32ae85 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -226,7 +226,7 @@ else
 
     # Darwin requires -fstrict-aliasing to be explicitly enabled.
     ifeq ($(OS),Darwin)
-      EXTRA_OPTIONS += -fstrict-aliasing
+      EXTRA_OPTIONS += -fstrict-aliasing -Wstrict-aliasing
     endif
 
     CXX.Flags += $(OPTIMIZE_OPTION) $(OmitFramePointer)