hs-lint.el: HLint exited abnormally with code 1

[Gurkenglas]

I run C-c l on main = (print "hi") and get:

-*- mode: hs-lint; default-directory: "c:/Users/Gurkenglas/Haskell/" -*-
HLint started at Tue May 15 21:56:20

hlint "c:/Users/Gurkenglas/Haskell/dicecombinereview.hs"
c:/Users/Gurkenglas/Haskell/dicecombinereview.hs:1:8: Suggestion: Redundant bracket
Found:
  (print "hi")
Why not:
  print "hi"

1 hint

HLint exited abnormally with code 1 at Tue May 15 21:56:20

[Gurkenglas]

Here's M-x report-emacs-bug info: https://pastebin.com/FycP8xSc

[ndmitchell]

I think the original .el script was written by @alexott in 2009. I'm not maintaining it (I don't use Emacs), but welcome pull requests.

[alexott]

I'm not sure that I understand what is wrong with it...

This is standard behavior of the Emacs's compilation mode - when program finishes with non-0 exit code, then it's marked as "exited abnormally" - this is standard convention for Unix programs. HLint will return code 0 only when there are no problems found/0 hints produced - I believe that this is intended.

You can still use Emacs commands, like next-error to switch between hints in compilation buffer.