From b02765c4c76af23ab4cc5a4367cc9a33e3e25ade Mon Sep 17 00:00:00 2001
From: LawrenceK <github@lklyne.co.uk>
Date: Tue, 18 Dec 2012 14:11:04 +0000
Subject: [PATCH] Add -march=i686 for 32 bit builds as otherwise defaults to
 i386 which does not supply one of the intrinsics.

---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 92d59b7d7..8c655a84e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -98,6 +98,9 @@ endif()
 
 # Compiler-specific flags
 if(CMAKE_COMPILER_IS_GNUCC)
+	if(NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
+    	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=i686")
+	endif()
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
 	CHECK_C_COMPILER_FLAG (-Wno-unused-result Wno-unused-result)
 	if(Wno-unused-result)