flymake-allowed-file-name-masks is void

[magthe]

I had to add this

(setq flymake-allowed-file-name-masks nil)

to make haskell-mode load on my latest build of 30.0.50.

I'm guessing it's this line that's failing when flymake-allowed-file-name-masks is void

(add-to-list 'flymake-allowed-file-name-masks '("\\.l?hs\\'" haskell-flymake-init))

[terlar]

Investigating a bit and the cause of this is the following commit:
emacs-mirror/emacs@81c6569

This variable is defined by flymake-proc which is not always required within flymake anymore. One solution is to require flymake-proc inside haskell-mode.el. However, given that proc is a legacy API, perhaps we should get of it anyways.

[Eason0210]

Have the same issue with Emacs 30.0.50, got this message when enable haskell-mode:

File mode specification error: (void-variable flymake-allowed-file-name-masks)

Please fix it.

[arjunkathuria]

ran into the same issue, seems @purcell fixed it. Thanks Steve!