One Quickie

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Setting compiler flags on a per-file basis (Xcode->General)

Sometimes you need to set compiler flags on a per-file basis, like you need to suppress a warning in one place or set a one-off #define, but not for the entire project. You can set these flags in the build tab of the Get Info window of the source file in the target's compile sources build phase. If you get info on the source file in other places in Xcode, there's no build tab, and you're left with that "Am I crazy? I know I've seen that setting somewhere before, but where is it? I better go back to listening to Finnish polkas 24/7 and give up this software thing" kind of feeling.