xcode xcodebuild - 如何定义预处理器宏？
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xcodebuild - how to define preprocessor macro?
提问by Jaka Jan?ar
How can I define a preprocessor macro when using xcodebuild?
使用 xcodebuild 时如何定义预处理器宏？
I need to build my app using a bunch of different configurations, and I would like to do this using a shell script which runs xcodebuild a number of times with different preprocessor macros.
我需要使用一堆不同的配置来构建我的应用程序，并且我想使用一个 shell 脚本来执行此操作，该脚本使用不同的预处理器宏多次运行 xcodebuild。
采纳答案by kennytm
Cmd + I on the project to open the Info dialog. Then in the "Build" tab, find the "Preprocessor Macros" setting. Add the macros there.
Cmd + I 在项目上打开信息对话框。然后在“构建”选项卡中，找到“预处理器宏”设置。在那里添加宏。
... Where you can find the setting name is GCC_PREPROCESSOR_DEFINITIONS, so you could add
...您可以在哪里找到设置名称是GCC_PREPROCESSOR_DEFINITIONS，因此您可以添加
GCC_PREPROCESSOR_DEFINITIONS="foo=bar"
to the xcodebuild arguments.
到 xcodebuild 参数。
回答by lhunath
You pass GCC_PREPROCESSOR_DEFINITIONSon the xcodebuildcommand line.
您传递GCC_PREPROCESSOR_DEFINITIONS上xcodebuild的命令行。
Remember that the argument will be re-evaluated for shell-like word splitting and quote handling, so you need to be careful, especially when your macro values aren't just simple 1s (eg. NSString literals).
请记住，参数将被重新评估以进行类似 shell 的分词和引号处理，因此您需要小心，尤其是当您的宏值不仅仅是简单的1s（例如 NSString 文字）时。
Also important is to expand the GCC_PREPROCESSOR_DEFINITIONSinside the value you set (single-quoted, so your script doesn't expand it but the build's shell expands it), otherwise you'll lose your project's build settings for this property.
同样重要的是GCC_PREPROCESSOR_DEFINITIONS在您设置的值内部展开（单引号，因此您的脚本不会展开它，但构建的外壳会展开它），否则您将丢失此属性的项目构建设置。
The following code puts your defines in a nice bash array and then expands the array in the xcodebuildcommand line in a way that shell stuff gets nicely escaped:
以下代码将您的定义放在一个不错的 bash 数组中，然后在xcodebuild命令行中以一种可以很好地转义 shell 内容的方式扩展该数组：
defines=( TESTING=1 'IWISH_HOST=@"http://192.168.0.101:8080"' )
xcodebuild -verbose -scheme "MyAppScheme" \
GCC_PREPROCESSOR_DEFINITIONS='$GCC_PREPROCESSOR_DEFINITIONS '"$(printf '%q ' "${defines[@]}")"
