diff --git a/src/BulletCollision/Gimpact/btGImpactCollisionAlgorithm.h b/src/BulletCollision/Gimpact/btGImpactCollisionAlgorithm.h
index 2a418de37..453472aa0 100644
--- a/src/BulletCollision/Gimpact/btGImpactCollisionAlgorithm.h
+++ b/src/BulletCollision/Gimpact/btGImpactCollisionAlgorithm.h
@@ -298,7 +298,7 @@ public:
 
 
 //algorithm details
-#define BULLET_TRIANGLE_COLLISION 1
+//#define BULLET_TRIANGLE_COLLISION 1
 #define GIMPACT_VS_PLANE_COLLISION 1
 
 
diff --git a/src/LinearMath/btScalar.h b/src/LinearMath/btScalar.h
index 36f54b369..94d41a6df 100644
--- a/src/LinearMath/btScalar.h
+++ b/src/LinearMath/btScalar.h
@@ -128,7 +128,7 @@ inline int	btGetVersion()
 #else
 	//non-windows systems
 
-#if (defined (__APPLE__) && defined (__i386__))
+#if (defined (__APPLE__) && defined (__i386__) && (!defined (BT_USE_DOUBLE_PRECISION)))
 	#define BT_USE_SSE
 	#include <emmintrin.h>