fix warnings (thanks to Aaron!)

src/BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h

@@ -39,7 +39,11 @@ ATTRIBUTE_ALIGNED16(class) btBvhTriangleMeshShape : public btTriangleMeshShape
 
 	bool m_useQuantizedAabbCompression;
 	bool m_ownsBvh;
+#ifdef __clang__
+	bool m_pad[11] __attribute__((unused));////need padding due to alignment
+#else
 	bool m_pad[11];////need padding due to alignment
+#endif
 
 public:
 

src/BulletCollision/CollisionShapes/btConvexPolyhedron.cpp

@@ -21,6 +21,7 @@ subject to the following restrictions:
 #include "btConvexPolyhedron.h"
 #include "LinearMath/btHashMap.h"
 
+
 btConvexPolyhedron::btConvexPolyhedron()
 {
 
@@ -33,7 +34,7 @@ btConvexPolyhedron::~btConvexPolyhedron()
 
 inline bool IsAlmostZero(const btVector3& v)
 {
-	if(fabsf(v.x())>1e-6 || fabsf(v.y())>1e-6 || fabsf(v.z())>1e-6)	return false;
+	if(btFabs(v.x())>1e-6 || btFabs(v.y())>1e-6 || btFabs(v.z())>1e-6)	return false;
 	return true;
 }
 

src/BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h

@@ -25,7 +25,6 @@ subject to the following restrictions:
 ATTRIBUTE_ALIGNED16(class) btMultimaterialTriangleMeshShape : public btBvhTriangleMeshShape
 {
     btAlignedObjectArray <btMaterial*> m_materialList;
-    int ** m_triangleMaterials;
 
 public: