"File mode specification error: (void-function haskell-indentation)"

[joehillen]

I saw the announcement for the March release about the new indentation and I wanted to try it out: https://github.com/haskell/haskell-mode/wiki/Month-in-haskell-mode-March-2015

On the announcement it says to try it out add:

(add-hook 'haskell-mode-hook 'haskell-indentation)

If I do that, I get the above error. However, this works (found in the guide):

(add-hook 'haskell-mode-hook 'turn-on-haskell-indentation)

Is this a bug in the announcement?

[gracjan]

Proper is:

(add-hook 'haskell-mode-hook 'haskell-indentation-mode)

thanks for noticing!

EDIT: -mode!, -mode!

[joehillen]

@gracjan I'm confused. 'haskell-indentation gives me the error; 'turn-on-haskell-indentation does not.

[gracjan]

I can't spell at this hour. Proper is with -mode at the end:

(add-hook 'haskell-mode-hook 'haskell-indentation-mode)

[joehillen]

Got it. Thanks!