Xcode:项目设置与目标设置 [英] Xcode: project settings vs. target settings

问题描述

我正在Mac OS X上为我们的一位客户创建一个静态库，以及一个用于测试静态库的小型cmd line应用程序. cmd line项目有2个额外的库搜索路径，这意味着我在发布模式下链接到Debug版本，并且快要疯了，所以我试图摆脱这两个路径，但是我找不到它们的指定位置.我在查看项目信息，但事实证明它们是在目标信息中指定的.

I'm creating a static lib on Mac OS X for one of our customers, as well as a small cmd line app to test the static lib. The cmd line project has 2 extra library search paths, which meant I was linking to the Debug version in Release mode and just about went crazy, so I tried to get rid of these two paths, but I couldn't find where they were specified. I was looking in the project info, but it turns out they were specified in the target info.

我不明白区别吗?！为什么要设置两组基本相同的设置?有人可以启发我吗?

I don't understand the distinction?! Why there are 2 sets of settings, which are essentially the same?! Can someone please enlighten me?

推荐答案

一个项目可以包含多个目标.例如，我编写的一个应用程序有四个-应用程序本身，一个Quick Look插件，一个框架和一个包含可动态加载的Mac OS 10.6特定功能的捆绑软件.

A project can contain multiple targets. For example, an app I write has four - the app itself, a Quick Look plugin, a framework and a bundle that contains Mac OS 10.6-specific functionality that can be dynamically loaded in.

项目设置适用于项目中的每个目标.然后，每个目标都可以根据需要覆盖各个设置-例如，我项目的目标SDK设置为10.5，但是10.6特定的捆绑包将其目标SDK设置为10.6.

Project settings apply to every single target in the project. Each target can then override individual settings if they need to - for instance, my project's Target SDK is set to 10.5, but the 10.6-specific bundle has it's Target SDK set to 10.6.

在某些情况下，有些设置在项目设置中是没有意义的-我想其中之一就是搜索路径.

In some instances, some settings don't make sense to be in Project Settings - one of these, I guess, is search paths.

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