Re: sys/idtype.h unused enumeration values

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Mon, 18 May 2020 21:11:36 +0200
    From:        Kamil Rytarowski <n54%gmx.com@localhost>
    Message-ID:  <05255347-1c55-2762-aaf6-fec3caf48c49%gmx.com@localhost>

  | Next, I can add my value at the end of list (and before _P_MAXIDTYPE).

Other than this, everything that you propose is pointless.   This one
you can do (assuming of course that there is a good reason for your new
entry, but there's no reason to doubt that now.)

kre