reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/commit/?id=4109e0e2e9d3fb7de4ae6f3bade444cdc07c9b9a
        git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
        git fetch --no-tags arm-platforms pci/apple-host-bridge-hook
        git checkout 4109e0e2e9d3fb7de4ae6f3bade444cdc07c9b9a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash