Automatically configure Flycheck for Haskell.

Install flycheck-haskell from MELPA or MELPA Stable and add the following to your init.el:

(add-hook 'haskell-mode-hook #'flycheck-haskell-setup)

Tested with GHC 7.2.2, 7.4.2, 7.6.3, 7.8.4, 7.10.3, 8.0.2, 8.2.2, 8.4.1, 8.6.5, 8.8.1.

Just use Flycheck as usual in your Cabal projects.

To explicitly configure Haskell syntax checking for the current buffer, type M-x flycheck-haskell-configure. You should run this command after major changes to the Cabal file.

• M-x customize-group RET flycheck-haskell

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

See COPYING for details.