Question

At the command line, xcodebuild gives different results than building from within the Xcode UI.

Here is the command line that I pass:

$ xcodebuild -sdk iphonesimulator5.0 -configuration Release -scheme mylib -target mylib

It may be important to note that the target is set to create a static library file.

I know that different settings are being used because I have -Wundeclared-selector toggled off in the project file. However, I get these warnings when running xcodebuild from the command line.

It seems that others are also having this problem:
Why does xcodebuild give different build results than XCode UI

Answer 1

I had multiple versions of Xcode installed on my machine. This fixed it:

$ sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer/