anchor.diff:    ${optionalString (versionAtLeast version "4.7") ''
       SYNC_FILE y
       INTEL_PMC_CORE y
  +  ''}
  +  ${optionalString (versionAtLeast version "4.10") ''
  +    INTEL_RDT_A y
     ''}
     SSB_PCMCIAHOST y
     SSB_SDIOHOST y
  
positive.code:   NAMESPACES y #  Required by 'unshare' used by 'nixos-install'
    RT_GROUP_SCHED y
    CGROUP_DEVICE y
    MEMCG y
    MEMCG_SWAP y
    CGROUP_PIDS y
  
negative.code:   MEDIA_CAMERA_SUPPORT y
    MEDIA_RC_SUPPORT y
    MEDIA_USB_SUPPORT y
    ${optionalString (versionAtLeast version "4.10") ''
      MEDIA_CEC_SUPPORT y
    ''}
  
    # Our initrd init uses shebang scripts, so can't be modular.
    BINFMT_SCRIPT y
  