anchor.diff:      `versionAtLeast`.
   
     Then do test your change by building all the kernels (or at least
  -  their configs) in nixpkgs or else you will guarantee lots and lots
  +  their configs) in Nixpkgs or else you will guarantee lots and lots
     of pain to users trying to switch to an older kernel because of some
     hardware problems with a new one.
   
  
positive.code:   ${optionalString (versionOlder version "4.4") ''
      B43_PCMCIA? y
    ''}
    BLK_DEV_CMD640_ENHANCED y # CMD640 enhanced support
    BLK_DEV_IDEACPI y # IDE ACPI support
    BLK_DEV_INTEGRITY y
    BSD_PROCESS_ACCT_V3 y
    BT_HCIUART_BCSP? y
  
negative.code:   KEXEC_FILE y
    KEXEC_JUMP y
    LDM_PARTITION y # Windows Logical Disk Manager (Dynamic Disk) support
    LOGIRUMBLEPAD2_FF y # Logitech Rumblepad 2 force feedback
    LOGO n # not needed
    MEDIA_ATTACH y
  