APT source whitelist request for cassou/emacs

[gracjan]

ppa:cassou/emacs

[tripleee]

Seriously? The PPA description says [DEPRECATED] in ugly capital letters.

You should probably be looking at https://launchpad.net/~ubuntu-elisp/+archive/ppa which was done in #367.

[gracjan]

We need this for Emacs23 compatibility testing.

[swsnr]

@gracjan Emacs 23? cassou/emacs doesn't even include that version…

[gracjan]

@lunaryorn, you are right. cassou/emacs is used for Emacs24 as Emacs23 is present by default.

I basically need this set: https://github.com/haskell/haskell-mode/blob/master/.travis.yml#L17-L36

[gracjan]

@tripleee: #367 does not look 'done'. Why do you say it is done?

[tripleee]

@gracjan My bad, I probably looked at the wrong tab in my browser.

[tripleee]

I was also confused by the fact that emacs24 is the default Emacs most places now. You might eventually need to worry about where to obtain emacs23 eventually, but for now, Travis is using an old Ubuntu version which does not include emacs24 by default. (emacs23 it is included in Ubuntu up through trusty aka Ubuntu 14.04. Travis runs 12.04 for the time being.) Using the cassou PPA for emacs24 seems to be the standard workaround. Perhaps this should be reopened?