I have a product building in Big Sur with Xcode 13 from the commandline via xcodebuild
and generates this warning:
warning: Building targets in manual order is deprecated - check "Parallelize build for command-line builds" in the project editor, or set DISABLE_MANUAL_TARGET_ORDER_BUILD_WARNING in any of the targets in the current build to suppress this warning
Documentation says:
However, there is no such option that I can find: