cloudkite/Masonry — pull request #54 by SkylerLipthay (2014-03-13 06:00:58+00:00)
Title: Explicitly #import <Foundation/Foundation.h> instead of assuming it has already been imported.

I tried using the library in an OS X project that [does not have a precompiled header](http://qualitycoding.org/precompiled-headers/), but compilation failed. `TARGET_OS_IPHONE` and `TARGET_OS_MAC` were unresolved because I do not have the Foundation headers implicitly imported in every file.