joachifm/libmpd-haskell — Issue #7: GHC 7.2.x build error
Author: peti
Created: 2011-11-21 19:12:10+00:00
State: open

http://hydra.nixos.org/build/1564685/nixlog/1/raw

Network/MPD/Commands/Arg.hs:49:10:
Illegal instance declaration for `MPDArg String'
(All instance types must be of the form (T a1 ... an)
where a1 ... an are *distinct type variables*,
and each type variable appears at most once in the instance head.
Use -XFlexibleInstances if you want to disable this.)
In the instance declaration for `MPDArg String'