> xcrun can't find cdtool on my system even without specifying an SDK: I don't know anything about it except that the error occurs when using CLT and doesn't happen when using the Xcode SDK.
> The Xcode tools are another matter, and we should be setting DEVELOPER_DIR > correctly to allow them to be found. What would the correct value be? Googling around I found e.g. DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer (or other Xcode installation, presumably). Used as either an envar or an argument to xcodebuild, I could not find a value that allowed the build to complete successfully when the SDKROOT was using the CLT. -Aaron
