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

I wrote an extensive blog post about how I improved the iOS development cycle at Spotify:

Shaving off 50% waiting time from the iOS Edit-Build-Test cycle

It boiled down to:

1) Stop generating dSYM bundles.

2) Avoid compiling with -O4 if using Clang.