How to decrease build times / speed up compile time in Xcode?

Question

What strategies can be used in general to decrease build times for any Xcode project? I\'m mostly interested in Xcode specific strategies.

I\'m doi

Answer 1

One huge tip to halve compile times (for iOS projects at least) is to set Build Settings / Architectures / Build Active Architecture Only to YES.

What this does (especially with the advent of 64-bit iPads/64-bit compiler) is to not build the binary for the architectures you're not currently using.

Make sure you remember to re-enable this setting on submission to the app store, or your binary will not validate.