Bug#867831: haskell-ed25519 build-depends libghc-quickcheck2-dev (< 2.9) but 2.9.2-1 is to be installed

[Adrian Bunk]

Source: haskell-ed25519
Version: 0.0.5.0-5
Severity: serious

The following packages have unmet dependencies:
 builddeps:haskell-ed25519 : Depends: libghc-quickcheck2-dev (< 2.9) but 
2.9.2-1 is to be installed