Improves build time using Xcode.

Do you still wait so long for building on Xcode?

What should I do?

Change the setting like this below.

TARGETS -> Build Settings ->Build Options -> Debug Information Format

In this Debug section, turn the DWARF with dSYM File to DWARF. Just like that.

What's the point.

dSYM file is necessary for crash file to analyze. However normally you use step in/over etc in debug mode, so this dSYM is not important.
If your project contains cocos2d or other thing takes long time to generate dSYM, this setting will be good effect.
Also this is default setting to create new project in Xcode 7.3 now.

Ref link

https://labs.spotify.com/2013/11/04/shaving-off-time-from-the-ios-edit-build-test-cycle/
https://stackoverflow.com/questions/31230653

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