问题
I'd like to be able to change compiler flags for a whole set of files.
When accessing per-file compiler flags from the "Build Phases" area you can change flags one at a time, however say I'd like to change the flags for every file in a group (e.g., the DropBox or Facebook SDK).
Anyone know how to do this in Xcode 4.0.x?
回答1:
Fortunately, YES :-)
In Targets->Build Phaes->Compile Sources, mark all the files you like to set a compiler flag for, press RETURN (hit the enter key!), put the flag in the upcoming window and you're done!
来源：https://stackoverflow.com/questions/5768855/can-you-batch-change-per-file-compiler-flags-in-xcode-4