While I used to compile a single source file with Cmd+K in prior versions of Xcode, how does one do the same in Xcode 4? (Note that this is different than preprocessing or showing the disassembly of the file.) If compiling from a command line is proposed then it must be such that the project's settings, include paths, preprocessor definitions, etc., are all included.
An example use case is where I make a header file change but only want to test the change's effect with respect to a single source file, not all of the files that depend upon that header.
question from:https://stackoverflow.com/questions/4727631/how-does-one-compile-single-file-xcode-4