Subject: Re: bug#2623: 23.0.91; File is under version-control; use C-x v v to check in/out

From: Dan Nicolaescu <[email-masked]>
Date: Mon, 11 Jul 2011 11:53:52 -0400

Lars Magne Ingebrigtsen <[email-masked]> writes:

> Dan Nicolaescu <[email-masked]> writes:
>
>> It might be a good idea to used a named variable there instead of '(RCS SCCS)
>> so that other VC backends could add to it.
>
> I think that RCS and SCCS were the only ones where `C-x C-q' were used
> to check out/check in (sort of) stuff you were working on.  None of the
> more modern Unixey VCs had the "check out" concept, as far as I know.

There are others, not included in Emacs though.
Maybe `vc-checkout-model' can be used as a test here too...