fix more warnings in BulletCollision, and fix CMakeLists for Linux

src/BulletCollision/CollisionDispatch/btInternalEdgeUtility.cpp

@@ -114,7 +114,6 @@ struct btConnectivityProcessor : public btTriangleCallback
 			if(numshared >= 3)
 				return;
 		}
-		
 		switch (numshared)
 		{
 		case 0:
@@ -203,6 +202,7 @@ struct btConnectivityProcessor : public btTriangleCallback
 					ang4 = 0.f;
 				} else
 				{
+
 					calculatedEdge.normalize();
 					btVector3 calculatedNormalA = calculatedEdge.cross(edgeCrossA);
 					calculatedNormalA.normalize();
@@ -213,7 +213,7 @@ struct btConnectivityProcessor : public btTriangleCallback
 					isConvex = (dotA<0.);
 
 					correctedAngle = isConvex ? ang4 : -ang4;
-					btQuaternion orn2 = btQuaternion(btVector3(calculatedEdge.x(), calculatedEdge.y(), calculatedEdge.z()),-correctedAngle);
+					btQuaternion orn2(calculatedEdge,-correctedAngle);
 					calculatedNormalB = btMatrix3x3(orn2)*normalA;
 
 
@@ -301,6 +301,11 @@ struct btConnectivityProcessor : public btTriangleCallback
 
 				break;
 			}
+		default:
+			{
+				//				printf("warning: duplicate triangle\n");
+			}
+
 		}
 	}
 };