1if "AArch64" not in config.root.targets: 2 config.unsupported = True 3 4flags = "--target=aarch64-unknown-linux-gnu -nostartfiles -nostdlib -ffreestanding" 5 6config.substitutions.insert(0, ("%cflags", f"%cflags {flags}")) 7config.substitutions.insert(0, ("%cxxflags", f"%cxxflags {flags}")) 8