
9 Jan
2016
9 Jan
'16
6:06 p.m.
Have you tried _x instead? On Saturday, January 9, 2016, Henning Thielemann < lemming@henning-thielemann.de> wrote:
GHC-8.0 emits several new warnings of this kind:
Defined but not used: type variable ‘x’
for declarations like
type instance Snd x y = y
Enthusiastically, I started to replace unused type function arguments by underscores, only to find out that older GHC versions do not accept that. With what option can I disable this warning? Or can it be removed from -Wall for now?