[Pkg-emacsen-addons] Bug#802154: Bug#802154: sml-mode: fails to upgrade lenny -> squeeze -> wheezy -> jessie -> stretch

[David Bremner]

"Barak A. Pearlmutter" <barak at pearlmutter.net> writes:

>
> The current bug is somewhat deeper.  If the elpa infrastructure can't
> handle emacs (< 24), then it probably shouldn't try to use it.  This
> situation could come up if both emacs23 and emacs24 are installed, say,
> with update-alternatives set to point to emacs23.  So even an explicit
> dependency on emacs24 won't completely address the issue.  I think these
> considerations argue for explicit version testing, or careful feature
> testing, in the installation scripts.  Although maybe dh-elpa (>= 0.13)
> is already doing this?

The 0.13 dh-elpa install scripts explicitly blacklists (well, really
ignores) emacs23, but they don't know about emacs22. It seems like
kindof a corner case to me (since emacs22 isn't in oldoldstable), but I
don't mind also blacklisting emacs22 (and emacs21 for that matter).

d