How to append values in xcconfig variables?
问题 I'm using Xcode and .xcconfig files. I'm trying to append some values in the preprocessor definitions, but I simply can't make it work. I tried the following (as well as many variations of this), but no luck so far: GCC_PREPROCESSOR_DEFINITIONS = '$(GCC_PREPROCESSOR_DEFINITIONS) NEW_VALUE' The NEW_VALUE symbol is simply never added to the preprocessor definitions. Does anyone had success appending new values to variables in xcconfig files? 回答1: For reasons stated in other answers to this