Anyway I have heard actual self proclaimed marxists saying something along the line of "Damn that Smith".
Then those self-proclaimed 'Marxists' are idiots. Adam Smith's work was the foundational economic analysis upon which Marx based his own economic thought. In other words, it was Smith who made Marx possible. This, of course, is why the 'neo-classical' economists, horrified by some of the implications of the labour theory of value, went back and 'revised' Smith to remove that embarrassing 'blemish' from his work. This allowed them to recuperate Smith's work, which they could then use (in its 'new and improved' formulation, sort of like 'New Coke', lol) as a stick with which to beat the Marxists over the head, ideologically speaking. The fact that some Marxists have fallen for this trick is just evidence that some Marxists are idiots, that's all.
"Politics is the art of looking for trouble, finding it everywhere, diagnosing it incorrectly and applying the wrong remedies." - Marx (Groucho)