Some port problems can be worked around by instructing MacPorts to build the port on your machine from source, rather than using the prebuilt version. This can be corrected by explicitly setting build_arch arm64 in nf, or by using a native terminal emulator. If you have a universal MacPorts installation on an Apple Silicon Mac, and you run it from a terminal emulator that is not a native arm64 binary, MacPorts will end up being run as x86_64, and will build ports accordingly, which is often unexpected. MacPorts defaults to building for the architecture that it is running as. If xcode-select -install shows that the command-line tools are already installed, but ls /Library/Developer/CommandLineTools/SDKs/ did not list the desired version, you need to download the installer from Apple developer center manually Warning: You can install it as part of the Xcode Command Line Tools package by running xcode-select -install'.`) or a message about C compiler being unable to create executables in build logs. Symptoms that your system requires manual installation: console message about missing SDK ( Warning: The macOS 11.x SDK does not appear to be installed. Some users who upgraded from earlier versions of macOS reported, that xcode-select -install didn't gave proper results (didn't install neither Xcode, nor the SDK required) and first the installation of Xcode from AppStore and then the installation of Command-line tools for Xcode 12.2 was required from Apple Developer site, as described here. There have been reports that the -license option might not be sufficient alone, and following command might be required to agree to the license: sudo xcodebuild -runFirstLaunch Install macOS SDK 11 manually in case of problems

You also have to agree to the license by running sudo xcodebuild -license.

sudo xcode-select -s /Applications/Xcode.app/Contents/Developer), and that you have the command line tools installed ( xcode-select -install). MacPorts must be re-installed in a version configured for macOS 11 Big Sur.Įnsure you have Xcode 12.2 or greater installed and selected (e.g.

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