Belt rubbing water pump

Here's a better picture of the way the alternator is currently mounted. Is this the AC bracket or does it look more like a total hack job? Doesn't seem right having the pivot supported only on the engine side, and that could explain why the belt is hitting the water pump in the first place. Hard to see, but the pivot bolt isn't actually going into the block anywhere either, it just ends next to the valve cover.

View attachment IMG_1893.jpg