@@ -978,8 +978,11 @@ Library
978978 , vector < 0.12
979979 , vector-binary-instances < 0.3
980980 , zip-archive > 0.2.3.5 && < 0.2.4
981− , zlib < 0.6
982981 , safe
982+ -- zlib >= 0.6.1 is broken with GHC < 7.10.3
983+ if impl(ghc < 7.10.3)
984+ build-depends: zlib < 0.6.1
985+
983986 Extensions: MultiParamTypeClasses
984987 , DeriveFoldable
985988 , DeriveTraversable