ghcid starts cabal repl with -O2 option

[thielema]

essence-of-live-coding-tutorial$ ghcid
Loading cabal repl -O2 ...
cabal: unrecognized 'repl' option `-O2'
Command "cabal repl -O2" exited unexpectedly with error message: cabal: unrecognized 'repl' option `-O2'

When I start cabal repl myself, I encounter no problems and see the white ball in a black window that somehow reacts to mouse clicks and moves. Is ghcid required for the tutorial?

[turion]

ghcid is not required, but highly recommended. You can edit .ghcid and remove that -O2 option without much harm.

[thielema]

On Sun, 23 Aug 2020, Manuel Bärenz wrote:

ghcid is not required, but highly recommended. You can edit .ghcid and remove that -O2 option without much harm.

worksforme

[turion]

I'll remove that option later and announce it in the tutorial