When I create a new OS X application project, I noticed many target options those confuse me quite a lot:
(1) The top-left setting of Xcode window:
(2) The "Base SDK":
(3) "Deployment Target":
(4) Architectures:
Here comes my questions:
For (2) and (3), I think it was clearer to understand. These are what I comprehend:
(2) This identifies what I develop with.
(3) This identifies what OS version my application will be used on.
Please tell me whether I am right...
But I could not understand (1). I just know that if I select 32-bit here, I could not use ARC.
Neither with (4), what are they? Are they represent the bit-width of the CPU? What was the difference between (1) and (4)?