anchor.diff:    BT_HCIUART_BCSP? y
     BT_HCIUART_H4? y # UART (H4) protocol support
     BT_HCIUART_LL? y
  -  BT_RFCOMM_TTY? y # RFCOMM TTY support
  +  ${optionalString (versionAtLeast version "3.4") ''
  +    BT_RFCOMM_TTY? y # RFCOMM TTY support
  +  ''}
     CRASH_DUMP? n
     ${optionalString (versionOlder version "3.1") ''
       DMAR? n # experimental
  
positive.code:   XFS_RT? y # XFS Realtime subvolume support
    OCFS2_DEBUG_MASKLOG? n
    BTRFS_FS_POSIX_ACL y
    UBIFS_FS_XATTR? y
    UBIFS_FS_ADVANCED_COMPR? y
    ${optionalString (versionAtLeast version "3.6") ''
      NFS_SWAP y
  
negative.code:   FTRACE_SYSCALLS y
    SCHED_TRACER y
    STACK_TRACER y
    ${optionalString (versionAtLeast version "3.10") ''
      UPROBE_EVENT y
    ''}
    FUNCTION_PROFILER y
    RING_BUFFER_BENCHMARK n
  
  